DMC:V2500-A0-72-42-0000-01A-710A-B|Issue No:011|Issue Date:2021-02-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-42-00-430-001 Diffuser And Combustion Group - Assemble The Diffuser And Combustion Group, Assembly-001

General

CAUTION

THE WORD FOCUS, SPECIFIED IN SUBTASKS, INDICATE CRITICAL LOCATIONS ON COMPONENTS TO WHICH SPECIAL ATTENTION MUST BE GIVEN.

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.

For all parts identified in a different Chapter/Section/Subject, the applicable Chapter/Section/Subject comes before the Fig/item number.

For standard torque data and procedures, refer to SPM TASK 70-41-00-400-501 and SPM TASK 70-41-02-400-501.

Special torque data and assembly tolerances are included in the procedure.

Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-129 ANTI-SEIZE PASTE, unless other lubricants are referred to in the procedure.

To identify, lubricate and install seal rings, refer to SPM TASK 70-44-01-400-501.

The number for each radial location must be identified in a clockwise direction. These start at the engine top position when you look from the rear of the engine, unless stated differently in the procedure.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

Name	Manufacturer	Part Number / Identification	Quantity
IAE 1P16004 Handling bracket	0AM53	IAE 1P16004	2
IAE 1P16005 Build stand	0AM53	IAE 1P16005	1
IAE 1P16042 Test adapter	0AM53	IAE 1P16042	1
IAE 1P16044 Lift fixture	0AM53	IAE 1P16044	1
IAE 1P16068 Support fixture	0AM53	IAE 1P16068
IAE 1P16070 Guide pin	0AM53	IAE 1P16070	2
IAE 1P16086 Air flow adapter	0AM53	IAE 1P16086	1
IAE 1P16089 Leak check cap	0AM53	IAE 1P16089	1
IAE 1P16090 Leak check fixture	0AM53	IAE 1P16090	1
IAE 1P16091 Leak check fixture	0AM53	IAE 1P16091	1
IAE 1P16092 Igniter immersion gage	0AM53	IAE 1P16092	1
IAE 1P16095 Leak check cap	0AM53	IAE 1P16095	1
IAE 1P16102 Lift sling	0AM53	IAE 1P16102	1
IAE 1P16103 Alignment fixture	0AM53	IAE 1P16103	1
IAE 1P16108 cover	0AM53	IAE 1P16108
IAE 1P16139 Wrench	0AM53	IAE 1P16139	1
IAE 1P16173 Lift sling	0AM53	IAE 1P16173	1
IAE 1P16231 Alignment pin	0AM53	IAE 1P16231	2
IAE 1P17000 Protective cover	0AM53	IAE 1P17000	1
IAE 6F10029 Air flow test cart	0AM53	IAE 6F10029	1
IAE 6F10030 Vacuum test cart	0AM53	IAE 6F10030	1

Consumables, Materials and Expendables

Name	Manufacturer	Part Number / Identification
CoMat 01-223 WAX, REFINED PARAFFIN	X111X	CoMat 01-223
CoMat 01-573 WAX BLEND, PARAFFIN	24269	CoMat 01-573
CoMat 02-141 LOCKWIRE	LOCAL	CoMat 02-141
CoMat 02-150 LOCKWIRE	LOCAL	CoMat 02-150
CoMat 10-041 PETROLATUM, WHITE	LOCAL	CoMat 10-041
CoMat 10-045 LEAK CHECK FLUID, BUBBLES-TYPE	03530	CoMat 10-045
CoMat 10-050 ASSEMBLY FLUID	0AM53	CoMat 10-050
CoMat 10-077 APPROVED ENGINE OILS	X333X	CoMat 10-077
CoMat 10-087 SEALING RING LUBRICANT	56385	CoMat 10-087
CoMat 10-094 ANTI-SEIZE COMPOUND, PURE Ni-SPECIAL	K2147	CoMat 10-094
CoMat 10-109 HIGH TEMPERATURE ANTI-SEIZELUBRICANT	LOCAL	CoMat 10-109
CoMat 10-129 ANTI-SEIZE PASTE	34568	CoMat 10-129

Spares

Name	Manufacturer	Part Number / Identification	Quantity	Remark
Gasket - CSN to be provided	77445	Gasket	1	01-040
Gasket - CSN to be provided	77445	Gasket	1	02-001
Gasket - CSN to be provided	77445	Gasket	2	02-160
Gasket - CSN to be provided	77445	Gasket	1	02-300
Gasket - CSN to be provided	77445	Gasket	1	(V2500-A1 Pre SBE 72-0016) 03-020
Gasket - CSN to be provided	77445	Gasket	1	(V2500-A1 SBE 72-0016 and A5) 03-030
Gasket - CSN to be provided	77445	Gasket	3	05-001
Gasket - CSN to be provided	77445	Gasket	3	05-160
Gasket - CSN to be provided	77445	Gasket	2	06-001
Gasket - CSN to be provided	77445	Gasket	20	01-010
Packing - CSN to be provided	77445	Packing	10	(V2500-A1 Pre SBE 72-0119) 01-060
Packing - CSN to be provided	77445	Packing	24	(V2500-A1 Pre SBE 72-0119) 03-001
Gasket - CSN to be provided	77445	Gasket	16	(V2500-A1 SBE 72-0119 and A5) 03-001
Gasket - CSN to be provided	77445	Gasket	4	(V2500-A1 Pre SBE 72-0119 and V2500 A1/A5 Pre SBE 73-0088) 03-040
Gasket - CSN to be provided	77445	Gasket	8	(V2500-A1/A5 Pre SBE 73-0088) 03-050
Packing - CSN to be provided	77445	Packing	18	(V2500-A1 Pre SBE 72-0119) 02-001
Packing - CSN to be provided	77445	Packing	12	(V2500-A1 SBE 72-0119 and A5) 02-001
Gasket - CSN to be provided	77445	Gasket	3	(V2500-A1 Pre SBE 72-0119 and V2500-A1/A5 Pre SBE 73-0088) 02-040
Gasket - CSN to be provided	77445	Gasket	6	(V2500 A1/A5 Pre SBE 73-0088) 02-050
Packing - CSN to be provided	77445	Packing	18	(V2500-A1 Pre SBE 72-0119) 01-010
Packing - CSN to be provided	77445	Packing	12	(V2500-A1 SBE 72-0119 and A5) 01-010
Gasket - CSN to be provided	77445	Gasket	3	(V2500-A1 Pre SBE 72-0119 and V2500 A1/A5 Pre SBE 73-0088) 01-040
Gasket - CSN to be provided	77445	Gasket	6	(V2500-A1/A5 Pre SBE 73-0088) 01-050

Safety Requirements

NONE

Procedure

1. Assemble the diffuser case assembly and the fitting. Refer to TASK 72-42-10-440-001 (ASSEMBLY).

SUBTASK 72-42-00-220-066 Reference the Fits and Clearances of the Static Seal Assembly and the Thrust Balance Tubes at Location 1400

Refer to Figure

Reference the clearance at location 1400. If required, use the data written as a note in TASK 72-42-50-200-000 (INSPECTION/CHECK-000) and TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 1. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 1400
Static seal assembly location
in thrust balance vent tube
Static seal assembly diameter	0.5010	Clear
	0.5000	0.0035
Thrust balance vent tube bore	0.5065	0.0065
	0.5045	Clear

Table 2. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 1400
Static seal assembly location
in thrust balance vent tube
Static seal assembly diameter	12.7254	Clear
	12.7000	0.089
Thrust balance vent tube bore	12.815	0.165
	12.865	Clear

SUBTASK 72-42-00-220-054 Reference the Fits and Clearances of the No. 4 Bearing Front Compartment at Location 2056

Refer to Figure

Reference the interference at location 2056. If required, use the data written as a note in TASK 72-42-11-200-000 (INSPECTION/CHECK-000) and TASK 72-42-31-200-000 (INSPECTION/CHECK-000).

Table 3. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2056
Diffuser case assembly Diffuser Case (72-42-11,01-010), location diameter
No.4 bearing support assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY (72-42-31,01-010), location diameter
Case location diameter	13.343	Intf	13.343	Intf
	13.337	0.000	13.337	0.000
Support location diameter	13.349	0.012	13.350	0.012
	13.343	Intf	13.338	Intf

Table 4. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2056
Diffuser case assembly Diffuser Case (72-42-11,01-010), location diameter
No.4 bearing support assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY (72-42-31,01-010), location diameter
Case location diameter	338.912	Intf	338.912	Intf
	338.760	0.00	338.760	0.00
Support location diameter	339.065	0.30	339.790	0.30
	338.912	Intf	338.090	Intf

SUBTASK 72-42-00-220-055 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2062

Refer to Figure

Reference the clearance at location 2062. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 5. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2062
Side clearance No. 4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320)
Scavenge tube elbow No. 4 Bearing Compartment Tubes (72-42-20,02-340)
Seal ring	0.077	Clear
	0.078	0.002
Scavenge tube elbow	0.080	0.005
	0.082	Clear

Table 6. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2062
Side clearance No. 4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320)
Scavenge tube elbow No. 4 Bearing Compartment Tubes (72-42-20,02-340)
Seal ring	1.956	Clear
	1.981	0.051
Scavenge tube elbow	2.032	0.127
	2.082	Clear

SUBTASK 72-42-00-220-056 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2063

Refer to Figure

Reference the clearance at location 2063. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 7. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2063
No.4 bearing scavenge tube elbow No. 4 Bearing Compartment Tubes (72-42-20,02-340), location diameter
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260), location diameter
Elbow location diameter	2.3475	Clear
	2.3535	0.0005
Sleeve location diameter	2.354	0.0085
	2.356	Clear

Table 8. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2063
No. 4 bearing scavenge tube elbow No. 4 Bearing Compartment Tubes (72-42-20,02-340), location diameter
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260), location diameter
Elbow location diameter	59.627	Clear
	59.779	0.013
Sleeve location diameter	59.729	0.215
	59.842	Clear

SUBTASK 72-42-00-220-057-A00 V2500-A1: Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2064 (Pre SBE 72-0221)

Refer to Figure

Reference the clearance at location 2064. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 9. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2064
Gap No.4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320), gap at 2.354 inches gage
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260), Inside diameter
Gap	0.005	Clear
	0.015	0.005
Inside diameter	2.354	0.021
	2.356	Clear

Table 10. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2064
Gap No.4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320), gap at 59.792 millimeters gage
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260), Inside diameter
Gap	0.13	Clear
	0.38	0.13
Inside diameter	59.792	0.53
	59.842	Clear

SUBTASK 72-42-00-220-057-B00 V2500-A1: Reference the Fits and Clearances of the Diffuser Case Rear Assembly at Location 2064 (SBE 72-0221)

Refer to Figure
SBE 72-0221: Introduce a new diffuser case

Reference the clearance at location 2064. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 11. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2064
Gap No.4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320), gap at 2.354 inches gage
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260) Inside diameter
Gap	0.005	Clear
	0.020	0.005
Inside diameter	2.354	0.026
	2.356	Clear

Table 12. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2064
Gap No.4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320), gap at 59.792 millimeters gage
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260) Inside diameter
Gap	0.13	Clear
	0.51	0.13
Inside diameter	59.792	0.66
	59.842	Clear

SUBTASK 72-42-00-220-057-C00 V2500-A5: Reference the Fits and Clearances of the Diffuser Case Rear Assembly at Location 2064

Refer to Figure

Reference the clearance at location 2064. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 13. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2064
Gap No. 4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320), gap at 2.354 inches gage
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260) Inside diameter
Gap	0.005	Clear
	0.020	0.005
Inside diameter	2.354	0.026
	2.356	Clear

Table 14. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2064
Gap No. 4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320), gap at 59.792 millimeters gage
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260) Inside diameter
Gap	0.13	Clear
	0.51	0.13
Inside diameter	59.792	0.66
	59.842	Clear

SUBTASK 72-42-00-220-058 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2082

Refer to Figure

Reference the interference at location 2082. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 15. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2082
Heatshield No. 4 Bearing Compartment Tubes (72-42-20,02-140), location diameter
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-180), location diameter
Heatshield diameter	1.9485	Intf
	1.9445	0.0005
Sealing sleeve diameter	1.951	0.0065
	1.949	Intf

Table 16. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2082
Heatshield No. 4 Bearing Compartment Tubes (72-42-20,02-140), location diameter
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-180), location diameter
Heatshield diameter	49.491	Intf
	49.391	0.013
Sealing sleeve diameter	49.555	0.165
	49.505	Intf

SUBTASK 72-42-00-220-059 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2086

Refer to Figure

Reference the clearance at location 2086. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 17. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2086
No. 4 bearing cooling tube assembly No. 4 Bearing Compartment Tubes (72-42-20,05-020), location diameter
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,05-180), location diameter
Tube location diameter	0.556	Clear
	0.560	0.002
Sleeve location diameter	0.562	0.010
	0.566	Clear

Table 18. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2086
No. 4 bearing cooling tube assembly No. 4 Bearing Compartment Tubes (72-42-20,05-020), location diameter
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,05-180), location diameter
Tube location diameter	14.123	Clear
	14.224	0.051
Sleeve location diameter	14.275	0.254
	14.376	Clear

SUBTASK 72-42-00-220-060 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2087

Refer to Figure

Reference the clearance at location 2087. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 19. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2087
Side clearance Seal ring No. 4 Bearing Compartment Tubes (72-42-20,05-140), thickness
No. bearing cooling tube assembly No. 4 Bearing Compartment Tubes (72-42-20,05-020), groove width
Seal ring thickness	0.0615	Clear
	0.0625	0.002
Groove width	0.0645	0.005
	0.0665	Clear

Table 20. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2087
Side clearance Seal ring No. 4 Bearing Compartment Tubes (72-42-20,05-140), thickness
No. 4 bearing cooling tube assembly No. 4 Bearing Compartment Tubes (72-42-20,05-020), groove width
Seal ring thickness	1.563	Clear
	1.587	0.051
Groove width	1.639	0.127
	1.689	Clear

SUBTASK 72-42-00-220-061 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2088

Refer to Figure

Reference the clearance at location 2088. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 21. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2088
Gap No. 4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,05-140), gap at 0.562 inches gage
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,05-180), inside diameter
Gap	0.005	Clear
	0.015	0.005
Sleeve inside diameter	0.562	0.028
	0.566	Clear

Table 22. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2088
Gap No. 4 bearing seal ring No. 4 Bearing Compartment Tubes (72-42-20,05-140), gap at 14.275 millimeters gage
Sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,05-180), inside diameter
Gap	0.13	Clear
	0.38	0.13
Sleeve inside diameter	14.275	0.71
	14.376	Clear

SUBTASK 72-42-00-220-062 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2089

Refer to Figure

Reference the interference at location 2089. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 23. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2089
Transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220), location diameter
Adapter tube No. 4 Bearing Compartment Tubes (72-42-20,06-240), location diameter
Transfer tube diameter	0.8285	Intf
	0.8255	0.0005
Adapter tube diameter	0.831	0.0055
	0.829	Intf

Table 24. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2089
Transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220), location diameter
Adapter tube No. 4 Bearing Compartment Tubes (72-42-20,06-240), location diameter
Transfer tube diameter	21.043	Intf
	20.968	0.013
Adapter tube diameter	21.107	0.139
	21.057	Intf

SUBTASK 72-42-00-220-069 P/N 2A3464, P/N 2A3465 and P/N 2A3466 Only: Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2089

Refer to Figure
NOTE
Adapter tube and transfer tube must be assembled in sets prior to inserting into Diffuser Case. Gap between adapter tube flange and transfer tube should not be greater than 0.045 in. (1.143 mm) after assembly.

Reference the interference at location 2089. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000).

Table 25. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2089 Transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220), location diameter Adapter tube No. 4 Bearing Compartment Tubes (72-42-20,06-240), location diameter
Transfer tube diameter	0.832 0.831	0.000 TIGHT
Adapter tube diameter	0.834 0.832	0.003

Table 26. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2089 Transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220), location diameter Adapter tube No. 4 Bearing Compartment Tubes (72-42-20,06-240), location diameter
Transfer tube diameter	21.133 21.107	0.0 TIGHT
Adapter tube diameter	21.184 21.133	0.076

SUBTASK 72-42-00-220-070 P/N 2A3466 Transfer Tube Only: Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2090

Refer to Figure
NOTE
Transfer tube must be previously assembled to adapter tube prior to assembling with Diffuser Case sealing sleeve. Refer to Step.

Reference the interference at location 2090. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000) and TASK 72-42-11-200-000 (INSPECTION/CHECK-000).

Table 27. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2090 Transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220), location diameter Diffuser case assembly Diffuser Case (72-42-11,01-010), sealing sleeve location diameter
Tube diameter	0.832 0.831	0.000 LOOSE
Sealing sleeve diameter	0.831 0.829	0.003

Table 28. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2090 Transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220), location diameter Diffuser case assembly Diffuser Case (72-42-11,01-010), sealing sleeve location diameter
Tube diameter	21.133 21.107	0.0 LOOSE
Sealing sleeve diameter	21.107 21.057	0.076

SUBTASK 72-42-00-220-063 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2090

Refer to Figure

Reference the interference at location 2090. If required, use the data written as a note in TASK 72-42-20-200-000 (INSPECTION/CHECK-000) and TASK 72-42-11-200-000 (INSPECTION/CHECK-000).

Table 29. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2090
Transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220), location diameter
Diffuser case assembly Diffuser Case (72-42-11,01-010), sealing sleeve location diameter
Tube diameter	0.8285	Intf
	0.8255	0.0005
Sealing sleeve diameter	0.831	0.0055
	0.829	Intf

Table 30. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2090
Transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220), location diameter
Diffuser case assembly Diffuser Case (72-42-11,01-010), sealing sleeve location diameter
Tube diameter	21.043	Intf
	20.968	0.013
Sealing sleeve diameter	21.107	0.139
	21.057	Intf

SUBTASK 72-42-00-220-064 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2243

Refer to Figure

Reference the interference at location 2243. If required, use the data written as a note in TASK 72-42-11-200-000 (INSPECTION/CHECK-000) and TASK 72-42-40-200-000 (INSPECTION/CHECK-000).

Table 31. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2243
Diffuser case assembly Diffuser Case (72-42-11,01-010), bore
HP compressor outlet guide vane ENGINE-HP COMPRESSOR EXIT STATOR (72-42-40,01-200), location diameter
Case bore	20.672	Intf	20.672	Intf
	20.668	0.002	20.661	0.002
Outlet guide vane location	20.678	0.010	20.678	0.010
diameter	20.674	Intf	20.674	Intf

Table 32. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2243
Diffuser case assembly Diffuser Case (72-42-11,01-010), bore
HP compressor outlet guide vane ENGINE-HP COMPRESSOR EXIT STATOR (72-42-40,01-200), location diameter
Case bore	525.068	Intf	525.070	Intf
	524.968	0.052	524.790	0.052
Outlet guide vane location	525.120	0.253	525.120	0.253
diameter	525.221	Intf	525.221	Intf

SUBTASK 72-42-00-220-065 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2244

Refer to Figure.

Reference the interference at location 2244. If required, use the data written as a note in TASK 72-42-11-200-000 (INSPECTION/CHECK-000) and TASK 72-42-50-200-000 (INSPECTION/CHECK-000).

Table 33. Fits and Clearances (all dimensions are in inches)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2244
Diffuser case assembly Diffuser Case (72-42-11,01-010), bore
Seal assembly ENGINE-STATIC SEAL (72-42-50,01-100), location diameter
Case diameter	16.901	Intf	16.901	Intf
	16.899	0.0041	16.894	0.004
Vane location diameter	16.9074	0.0084	16.9074	0.0084
	16.9050	Intf	16.9050	Intf

Table 34. Fits and Clearances (all dimensions are in millimeters)
	NEW PART		WORN PART
	DIMENSIONS		DIMENSIONS
PART IDENT	Size	Clearance	(Non-select)	REJECT IF MORE THAN
LOCATION 2244
Diffuser case assembly Diffuser Case (72-42-11,01-010), bore
Seal assembly ENGINE-STATIC SEAL (72-42-50,01-100), location diameter
Case diameter	429.285	Intf	429.285	Intf
	429.235	0.102	429.108	0.102
Vane location diameter	429.449	0.214	429.449	0.214
	429.387	Intf	429.387	Intf

1. Refer to Figure
2. Attach a hoist to the IAE 1P16173 Lift sling 1 off.
3. Attach the lift sling to the rear outer flange of the diffuser case assembly and lift the diffuser case assembly.
4. Attach the IAE 1P16004 Handling bracket 2 off to the front flange of the diffuser case assembly 180 degrees apart with the five screws from the rear of the diffuser case front flange.
5. Position the diffuser case assembly in the IAE 1P16005 Build stand 1 off.
6. Attach the handling brackets to the build stand with the eight work bolts.
7. Disconnect the lift sling from the diffuser case and move the sling away from the diffuser case assembly.
8. CAUTION
  TWO PERSONS ARE REQUIRED TO TURN THE DIFFUSER CASE ASSEMBLY IN THE BUILD STAND.
  Turn the diffuser case assembly so the front flange is up.
1. Refer to Figure and Figure.
2. Install the gasket No. 4 Bearing Compartment Tubes (72-42-20,02-160) 1 off into recess on the diffuser case boss and hold in position with CoMat 10-041 PETROLATUM, WHITE.
3. Install the heatshield No. 4 Bearing Compartment Tubes (72-42-20,02-140) into the diffuser case boss.
4. 1. Align the sealing sleeve screw holes to the left and right sides of the eight hole pad on the diffuser case.
5. Secure the sealing sleeve with the two lubed screws No. 4 Bearing Compartment Tubes (72-42-20,02-200). Torque the two screws to the diffuser case assembly to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm).
6. Install the metal seal ring No. 4 Bearing Compartment Tubes (72-42-20,02-320) into the groove on elbow No. 4 Bearing Compartment Tubes (72-42-20,02-340).
7. Insall the No. 4 bearing scavenge tube No. 4 Bearing Compartment Tubes (72-42-20,02-020) from the inside of the diffuser case.
8. Install the upper and lower locks No. 4 Bearing Compartment Tubes (72-42-20,02-220) and No. 4 Bearing Compartment Tubes (72-42-20,02-240) with flat face inward into the groove at the end of installed No. 4 bearing scvange which is out through the center of eight hole pad.
9. 1. Align the dowel pin in the elbow with dowel holes in lower lock and in gasket.
10. Attach the elbow No. 4 Bearing Compartment Tubes (72-42-20,02-340) with four lubed bolts No. 4 Bearing Compartment Tubes (72-42-20,02-360), finger tight only. Do not tighten and torque the bolts at this time.
11. Put the sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260) on the bench with smaller O.D facing down. Install the gasket No. 4 Bearing Compartment Tubes (72-42-20,02-160) 1 off into recess on the sealing sleeve. Use CoMat 01-573 WAX BLEND, PARAFFIN to hold the gasket in the sleeve.
12. Install the sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260) with the larger O.D towards diffuser and gasket No. 4 Bearing Compartment Tubes (72-42-20,02-160) over the elbow to seat on the eight hole pad.
13. Attach the sealing sleeve No. 4 Bearing Compartment Tubes (72-42-20,02-260) with six lubed bolts No. 4 Bearing Compartment Tubes (72-42-20,02-280), finger tight only. Do not tighten and torque the bolts at this time.
14. Attach a caution tag to one of the last installed bolts and mark the tag "Torque ten bolts".
1. Refer to: Figure
2. Put No. 4 Bearing Compartment Tubes (72-42-20,03-020) gasket 1 off on the outer airframe tube in the diffuser case.
3. Put the No. 4 bearing airframe manifold No. 4 Bearing Compartment Tubes (72-42-20,03-240) in place and attach with the two bolts No. 4 Bearing Compartment Tubes (72-42-20,03-260). Do not torque the bolts.
4. Install the bracket, Diffuser Case Assembly And Fittings (72-42-10,01-180) to the diffuser case assembly and attach with the screw Diffuser Case Assembly And Fittings (72-42-10,01-200) and the nut Diffuser Case Assembly And Fittings (72-42-10,01-220), to hold the airframe manifold. Torque the nut to 32 lbfin to 36 lbfin (3.616 Nm to 4.067 Nm).
5. Install the loop clamp No. 4 Bearing Compartment Tubes (72-42-20,03-305) on the airframe manifold.
6. Attach the bracket to the airframe manifold with the loop clamp No. 4 Bearing Compartment Tubes (72-42-20,03-305), the bolt No. 4 Bearing Compartment Tubes (72-42-20,03-310) and the nut No. 4 Bearing Compartment Tubes (72-42-20,03-315).
7. Attach the bracket on the airframe manifold to the rear inner flange of the diffuser case with the screw No. 4 Bearing Compartment Tubes (72-42-20,03-280) and the nut No. 4 Bearing Compartment Tubes (72-42-20,03-300). Torque the nut to 32 lbfin to 36 lbfin (3.616 Nm to 4.067 Nm).
1. Refer to Figure
  SBE 72-0166: Remove the Stage 1 HP turbine cooling air tubes
2. Put No. 4 Bearing Compartment Tubes (72-42-20,03-020) gasket 1 off on the outer airframe tube in the diffuser case.
3. Put the No. 4 bearing airframe manifold No. 4 Bearing Compartment Tubes (72-42-20,03-240) in place and attach with the two bolts No. 4 Bearing Compartment Tubes (72-42-20,03-260). Do not torque the bolts.
4. Install the bracket Diffuser Case Assembly And Fittings (72-42-10,01-180) to the diffuser case assembly and attach with the screw Diffuser Case Assembly And Fittings (72-42-10,01-200) and the nut Diffuser Case Assembly And Fittings (72-42-10,01-220) to hold the airframe manifold. Torque the nut to 32 lbfin to 36 lbfin (3.616 Nm to 4.067 Nm).
5. Install the loop clamp No. 4 Bearing Compartment Tubes (72-42-20,03-305) on the airframe manifold.
6. Attach the bracket to the airframe manifold with the loop clamp No. 4 Bearing Compartment Tubes (72-42-20,03-305), the bolt No. 4 Bearing Compartment Tubes (72-42-20,03-310) and the nut No. 4 Bearing Compartment Tubes (72-42-20,03-315).
7. Attach the bracket on the airframe manifold to the rear inner flange of the diffuser case with the screw No. 4 Bearing Compartment Tubes (72-42-20,03-280) and the nut No. 4 Bearing Compartment Tubes (72-42-20,03-300). Torque the nut to 32 lbfin to 36 lbfin (3.616 Nm to 4.067 Nm).
1. Refer to Figure
  SBE 72-0016: New No. 4 bearing airframe manifold assembly
2. Put the No. 4 Bearing Compartment Tubes (72-42-20,03-030) gasket 1 off on the outer airframe tube in the diffuser case.
3. Put the No. 4 bearing airframe manifold No. 4 Bearing Compartment Tubes (72-42-20,03-240) in place and attach it with the two bolts No. 4 Bearing Compartment Tubes (72-42-20,03-260). Do not torque the bolts.
4. Attach the bracket on the airframe manifold to the rear inner flange of the diffuser case with the screw No. 4 Bearing Compartment Tubes (72-42-20,03-280) and the nut No. 4 Bearing Compartment Tubes (72-42-20,03-300). Torque the nut to 32 lbfin to 36 lbfin (3.616 Nm to 4.067 Nm).
1. Refer to Figure
  SBE 72-0016: New No. 4 bearing and airframe manifold assembly
  SBE 72-0166: Remove the Stage 1 HP turbine cooling air tubes
  SBE 72-0221: Introduce a new diffuser case
2. Put the No. 4 Bearing Compartment Tubes (72-42-20,03-030) gasket 1 off on the outer airframe tube in the diffuser case.
3. Put the No. 4 bearing airframe manifold No. 4 Bearing Compartment Tubes (72-42-20,03-240) in place and attach it with the two bolts No. 4 Bearing Compartment Tubes (72-42-20,03-260). Do not torque the bolts.
4. Attach the bracket on the airframe manifold to the rear inner flange of the diffuser case with the screw No. 4 Bearing Compartment Tubes (72-42-20,03-280) and the nut No. 4 Bearing Compartment Tubes (72-42-20,03-300). Torque the nut to 32 lbfin to 36 lbfin (3.616 Nm to 4.067 Nm).
1. Refer to Figure
2. Put the No. 4 Bearing Compartment Tubes (72-42-20,03-030) gasket 1 off on the outer airframe tube in the diffuser case.
3. Put the No. 4 bearing airframe manifold No. 4 Bearing Compartment Tubes (72-42-20,03-240) in place and attach it with the two bolts No. 4 Bearing Compartment Tubes (72-42-20,03-260). Do not torque the bolts.
4. Attach the bracket on the airframe manifold to the rear inner flange of the diffuser case with the screw No. 4 Bearing Compartment Tubes (72-42-20,03-280) and the nut No. 4 Bearing Compartment Tubes (72-42-20,03-300). Torque the nut to 32 lbfin to 36 lbfin (3.616 Nm to 4.067 Nm).
1. Refer to Figure
  SBE 72-0166: Remove the Stage 1 HP turbine cooling air tubes
2. Put the No. 4 Bearing Compartment Tubes (72-42-20,03-030) gasket 1 off on the outer airframe tube in the diffuser case.
3. Put the No. 4 bearing airframe manifold No. 4 Bearing Compartment Tubes (72-42-20,03-240) in place and attach it with the two bolts No. 4 Bearing Compartment Tubes (72-42-20,03-260). Do not torque the bolts.
4. Attach the bracket on the airframe manifold to the rear inner flange of the diffuser case with the screw No. 4 Bearing Compartment Tubes (72-42-20,03-280) and the nut No. 4 Bearing Compartment Tubes (72-42-20,03-300). Torque the nut to 32 lbfin to 36 lbfin (3.616 Nm to 4.067 Nm).
1. Refer to Figure
2. Install the inner sensing tube No. 4 Bearing Compartment Tubes (72-42-20,04-260) to the outer sensing tube with the open end through the hole in the inner front flange of the diffuser case.
1. Refer to Figure
  SBE 72-0016: New No. 4 bearing airframe manifold assembly
2. Install the inner sensing tube No. 4 Bearing Compartment Tubes (72-42-20,04-260) to the outer sensing tube with the open end through the hole in the inner front flange of the diffuser case.
1. Refer to Figure
2. Install the inner sensing tube No. 4 Bearing Compartment Tubes (72-42-20,04-260) to the outer sensing tube with the open end through the hole in the inner front flange of the diffuser case.
1. Refer to Figure.
2. Install No. 4 Bearing Compartment Tubes (72-42-20,05-160) gaskets 3 off on the mounting pads on the ID of the diffuser case.
3. Attach the three sealing sleeves No. 4 Bearing Compartment Tubes (72-42-20,05-250) with the six bolts No. 4 Bearing Compartment Tubes (72-42-20,05-220) to the diffuser case. Do not torque the bolts.
4. Install the three No. 4 bearing inner cooling tubes No. 4 Bearing Compartment Tubes (72-42-20,05-200).
1. Refer to Figure.
2. Install the three seal rings No. 4 Bearing Compartment Tubes (72-42-20,05-140) to the three No. 4 bearing outer cooling tubes No. 4 Bearing Compartment Tubes (72-42-20,05-020).
3. Put No. 4 Bearing Compartment Tubes (72-42-20,05-001) gaskets 3 off on the diffuser case mounting pads.
4. Install the three No. 4 bearing outer cooling tubes No. 4 Bearing Compartment Tubes (72-42-20,05-020).
5. Attach the three cooling tubes to the diffuser case with the nine bolts No. 4 Bearing Compartment Tubes (72-42-20,05-040).
1. Refer to Figure
2. Put No. 4 Bearing Compartment Tubes (72-42-20,06-001) gaskets 2 off on the tube adapter mounting pads.
3. Install the two transfer tubes No. 4 Bearing Compartment Tubes (72-42-20,06-220).
4. Install the two tube adapters No. 4 Bearing Compartment Tubes (72-42-20,06-240).
5. Install the bracket No. 4 Bearing Compartment Tubes (72-42-20,06-255).
6. Attach the tube adapters and the bracket to the diffuser case with the six bolts No. 4 Bearing Compartment Tubes (72-42-20,06-250). Torque the bolts to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm).
7. Safety the bolts with CoMat 02-141 LOCKWIRE.
8. Install tube coupling nut to adapter No. 4 Bearing Compartment Tubes (72-42-20, 06-260).
9. Position the thrust wire in the hole of the tube coupling nut No. 4 Bearing Compartment Tubes (72-42-20, 06-280).
10. Use the mallet to move the thrust wire into position.
1. Refer to Figure
  SBE 72-0221: Introduce a new diffuser case
2. Put the No. 4 Bearing Compartment Tubes (72-42-20,06-001) gaskets 2 off on the tube adapter mounting pads.
3. Install the two transfer tube No. 4 Bearing Compartment Tubes (72-42-20,06-220).
4. Install the two tube adapters No. 4 Bearing Compartment Tubes (72-42-20,06-240).
5. Install the bracket No. 4 Bearing Compartment Tubes (72-42-20,06-255).
6. Attach the tube adapters and the bracket to the diffuser case with the six bolts No. 4 Bearing Compartment Tubes (72-42-20,06-250). Torque the bolts to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm).
7. Safety the bolts with CoMat 02-141 LOCKWIRE.
8. Install tube coupling nut to adapter No. 4 Bearing Compartment Tubes (72-42-20, 06-260).
9. Position the thrust wire in the hole of the tube coupling nut No. 4 Bearing Compartment Tubes (72-42-20, 06-280).
10. Use the mallet to move the thrust wire into position.
1. Refer to Figure
2. Put the No. 4 Bearing Compartment Tubes (72-42-20,06-001) gaskets 2 off on the tube adapter mounting pads.
3. Install the two transfer tubes No. 4 Bearing Compartment Tubes (72-42-20,06-220).
4. Install the two tube adapters No. 4 Bearing Compartment Tubes (72-42-20,06-240).
5. Install the bracket No. 4 Bearing Compartment Tubes (72-42-20,06-255).
6. Attach the tube adapters and the bracket to the diffuser case with the six bolts No. 4 Bearing Compartment Tubes (72-42-20,06-250). Torque the bolts to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm).
7. Safety the bolts with CoMat 02-141 LOCKWIRE.
8. Install tube coupling nut to adapter No. 4 Bearing Compartment Tubes (72-42-20, 06-260).
9. Position the thrust wire in the hole of the tube coupling nut No. 4 Bearing Compartment Tubes (72-42-20, 06-280).
10. Use the mallet to move the thrust wire into position.
1. Refer to Figure
2. Turn the positioning rods of the IAE 1P16103 Alignment fixture 1 off in to the fixture plate.
3. Attach the IAE 1P16103 Alignment fixture 1 off to the front inner flange of the diffuser case. Align the fixture with the offset hole in the front inner flange of the diffuser case. Secure the fixture with the six bolts.
4. Install the six thrust balance vent tubes ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20,07-001) in to the diffuser case. Turn the positioning rods of the alignment fixture to hold the tubes in position.
1. Refer to Figure
  SBE 72-0221: Introduce a new diffuser case
2. Turn the positioning rods of the IAE 1P16103 Alignment fixture 1 off into the fixture plate.
3. Attach the IAE 1P16103 Alignment fixture 1 off to the front inner flange of the diffuser case. Align the fixture with the offset hole in the front inner flange of the diffuser case. Secure the fixture with the six bolts.
4. Install the two thrust balance vent tubes ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20,07-001) into the diffuser case. Turn the positioning rods of the alignment fixture to hold the tubes in position.
1. Refer to Figure
2. Turn the positioning rods of the IAE 1P16103 Alignment fixture 1 off into the fixture plate.
3. Attach the IAE 1P16103 Alignment fixture 1 off to the front inner flange of the diffuser case. Align the fixture with the offset hole in the front inner flange of the diffuser case. Secure the fixture with the six bolts.
4. Install the two thrust balance vent tubes ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20,07-001) into the diffuser case. Turn the positioning rods of the alignment fixture to hold the tubes in position.
1. Refer to Figure.
2. Turn the diffuser case assembly so the rear flange is up.
3. Install the IAE 1P16070 Guide pin 2 off in the rear inner flange of the diffuser case assembly 180 degrees apart.
4. Remove the work bolts which attach the bearing support to the front seal assembly.
5. Remove the work bolts which attach the No. 4 bearing front compartment to the IAE 1P16068 Support fixture.
6. Chill the rear flange of the No. 4 bearing front support.
7. Install the IAE 1P17000 Protective cover 1 off onto the No. 4 bearing face seal.
8. Attach a hoist to the IAE 1P16044 Lift fixture 1 off.
9. Position the fixture over the No. 4 bearing front compartment. Lower and attach the fixture to the bearing compartment.
10. Lift the No. 4 bearing front compartment.
11. Align the dowel pin in the No. 4 bearing front compartment with the offset hole and the guide pins in the rear flange of the diffuser case assembly.
12. Install the No. 4 bearing front compartment in the diffuser case assembly. Tighten the work bolts in a crossing pattern.
13. Remove the bolts which attach the fixture to the No. 4 bearing front compartment and move the fixture away from the diffuser case assembly.
14. Remove the guide pins from the rear flange of the diffuser case assembly.
15. Install the work bolts to attach the thrust balance tubes to the inner diffuser case flange.
16. Remove the alignment fixture from the front flange of the diffuser case.
1. 1. Install ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20,01-040) gasket 1 off in the recess of the pressure tube adjacent to the bearing compartment.
  2. Lubricate the threads on the three bolts ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20,01-080) with CoMat 10-129 ANTI-SEIZE PASTE.
  3. Attach the pressure tube to the front bearing compartment with the three bolts ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20,01-080).
  4. Torque the bolts which attach the pressure tube to the No. 4 bearing compartment to 45 lbfin to 60 lbfin (5.084 Nm to 6.779 Nm). Safety with CoMat 02-141 LOCKWIRE.
  5. Torque the bolts which attach the pressure tube to the diffuser case assembly to 65 lbfin to 85 lbfin (7.3 Nm to 9.6 Nm). Safety with CoMat 02-141 LOCKWIRE.
2. 1. Install No. 4 Bearing Compartment Tubes (72-42-20,02-001) gasket 1 off in the recess of the scavenge tube adjacent to the No. 4 bearing compartment.
  2. Lubricate the threads on the four bolts No. 4 Bearing Compartment Tubes (72-42-20,02-040) with CoMat 10-129 ANTI-SEIZE PASTE.
  3. Attach the scavenge tube to the bearing compartment with the four bolts No. 4 Bearing Compartment Tubes (72-42-20,02-040).
  4. Torque the bolts which attach the scavenge tube to the bearing compartment to 45 lbfin to 60 lbfin (5.084 Nm to 6.779 Nm). Safety with CoMat 02-141 LOCKWIRE.
  5. Torque the six bolts which attach the sealing sleeve to the diffuser case assembly to 75 lbfin to 85 lbfin (8.474 Nm to 9.604 Nm). Safety with CoMat 02-141 LOCKWIRE.
  6. Use the 180 degree alternative torque pattern to torque the four bolts which attach the elbow to the scavenge tube to 25 lbfin to 30 lbfin (2.825 Nm to 3.390 Nm). Use the same 180 degree alternative torque pattern and apply final torque of 75 lbfin to 85 lbfin (8.474 Nm to 9.604 Nm). Refer to Figure for torque pattern. Safety with CoMat 02-141 LOCKWIRE.
3. 1. Torque the nine bolts No. 4 Bearing Compartment Tubes (72-42-20,05-040) which attach the three cooling air tubes No. 4 Bearing Compartment Tubes (72-42-20,05-020) to the outer side of the diffuser case assembly to 65 lbfin to 85 lbfin (7.3 Nm to 9.6 Nm). Safety with CoMat 02-141 LOCKWIRE.
  2. Torque the six bolts No. 4 Bearing Compartment Tubes (72-42-20,05-220) which attach the three cooling air sleeves No. 4 Bearing Compartment Tubes (72-42-20,05-250) to the inner side of the diffuser case assembly to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm). Safety with CoMat 02-141 LOCKWIRE.
  3. Remove the IAE 1P16108 cover from the front of the No. 4 bearing front compartment.
1. Refer to Figure
2. Install the IAE 1P16089 Leak check cap 1 off in the coupling nut of the pressure tube.
3. Install the IAE 1P16095 Leak check cap 1 off in to the elbow on the end of the scavenge tube.
4. Install the three locating pins of the IAE 1P16090 Leak check fixture 1 off at the three equally spaced locations on the rear flange of the diffuser case assembly.
5. Attach a hoist to the fixture and position the fixture over the locating pins.
6. Lower the fixture until it touches the rear of the inner flange of the No. 4 bearing front support. Attach the fixture to the bearing support with the 15 work bolts.
7. Disconnect the hoist from the fixture and move the hoist away from the fixture.
8. Connect the IAE 6F10029 Air flow test cart 1 off to the fixture.
9. Check the No. 4 bearing pressure and scavenge tubes at 80 psi (551.6 kPa) maximum for leaks. The air pressure must not decrease more than 5 psi (34.5 kPa) after 10 minutes.
10. Decrease the pressure to 0 psi (0 kPa) and disconnect the air flow panel.
11. Remove the leak test cap from the pressure tube.
12. Remove the leak check cap from the elbow at the end of the scavenge tube.
13. Attach a hoist to the leak check fixture and remove the 15 work bolts.
14. Remove the jackscrews from the storage position on the fixture. Turn the jackscrews in to the holes, that are marked in the fixture, until the fixture moves apart from the No. 4 bearing front support.
15. Lift the fixture clear of the diffuser case assembly.
16. Put the jackscrews in the storage position of the fixture.
17. Remove the locating pins from the No. 4 bearing front support.
1. Refer to Figure
2. Install the IAE IAE 1P16089 Leak check cap 1 off in the coupling nut of the pressure tube.
3. Install the IAE IAE 1P16095 Leak check cap 1 off in the elbow on the end of the scavenge tube.
  NOTE
  Make sure the detail tool packing is installed in the groove on the fixture.
4. Coat the five detail cap screw threads located on the IAE IAE 1P16091 Leak check fixture 1 off with CoMat 10-129 ANTI-SEIZE PASTE. Wipe off excess paste.
5. CAUTION
  BE CAREFUL WHEN YOU LOWER THE FIXTURE IN THE NO. 4 BEARING COMPARTMENT. DAMAGE TO THE CARBON SEAL FACE CAN OCCUR.
  Lift and position the fixture over the inner flange of the No. 4 bearing front support. Lower the fixture until it touches the rear of the inner flange on the bearing support.
6. Attach the fixture to the bearing support with the five detail cap screws.
7. Connect the IAE IAE 6F10030 Vacuum test cart 1 off to the fixture.
8. Adjust the vacuum on the cart to 20 Hg and evacuate the bearing compartment. Based on the ambient pressure, refer to the table below for the vacuum pressure in psia.
  Ambient Pressure of the Day (psia)
  Vacuum Pressure (psia)
  14.7
  4.9
  14.5
  4.7
  14.3
  4.5
  14.1
  4.3
  13.9
  4.1
  13.7
  3.9
  13.5
  3.7
  13.3
  3.5
  13.1
  3.3
  Vacuum pressure (psia) = Ambient pressure of the day (psia) - 9.8 psia
9. Check the air flow on the No. 4 front carbon seal bearing compartment. The air flow must be no more than 7 pph (3.18 Kg ph).
10. Decrease the vacuum to 0 Hg and disconnect the cart from the fixture.
11. Remove the leak check cap from the pressure tube.
12. Remove the leak check cap from the elbow at the end of the scavenge tube.
13. Remove the five detail cap screws from the fixture and lift the fixture clear of the diffuser case assembly.
14. Remove the IAE 1P17000 Protective cover from the No. 4 bearing face seal.
1. Install the IAE IAE 1P16086 Air flow adapter 1 off to the No. 4 bearing oil pressure tube.
2. Attach the hose on the IAE IAE 6F10029 Air flow test cart 1 off to the adapter on the oil pressure tube.
3. 1. Regulate the air pressure to the pressure tube to 10 psig (68.95 kPa).
  2. Combined flow through both nozzles must be 32 to 38 pph (14.51 to 17.24 Kg) per hour.
4. Decrease the pressure to 0 psig (0 kPa) and disconnect the air flow hose from the adapter on the pressure tube.
5. Remove the air flow adapter from the pressure tube.
1. Turn the diffuser case so that the front end of the diffuser case is up.
2. Torque the three bolts No. 4 Bearing Compartment Tubes (72-42-20,04-200) which attach the TOBI duct sensing tube to the outer side of the diffuser case to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm) and safety the bolts with CoMat 02-141 LOCKWIRE.
3. Torque the two bolts No. 4 Bearing Compartment Tubes (72-42-20,04-060) which attach the TOBI duct sensing tube to the inner side of the diffuser case to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm).
4. Torque the coupling nut of the inner TOBI duct sensing tube No. 4 Bearing Compartment Tubes (72-42-20,04-260) to 50 lbfin to 60 lbfin (5.649 Nm to 6.779 Nm).
5. Install the lockwire to safety the coupling nut and the two bolts which attach the outer sensing tube to the inner wall of the diffuser case.
1. Attach the bracket on the No. 4 bearing airframe manifold (forward end) to the No. 4 bearing front heatshield bracket with bolt No. 4 Bearing Compartment Tubes (72-42-20, 03-310) and nut No. 4 Bearing Compartment Tubes (72-42-20, 03-315). Torque the nut to 24 lbfin to 36 lbfin (2.712 Nm to 4.067 Nm).
2. Torque the two bolts No. 4 Bearing Compartment Tubes (72-42-20, 03-260) which attach the airframe tube and manifold to the inner side of the diffuser case to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm). Safety with CoMat 02-141 LOCKWIRE.
3. Torque the three bolts No. 4 Bearing Compartment Tubes (72-42-20, 03-180) which attach the airframe tube to the outer side of the diffuser case to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm). Safety with CoMat 02-141 LOCKWIRE.
4. Attach the bracket on the No. 4 bearing airframe manifold (aft end) to inner side of diffuser case with screw No. 4 Bearing Compartment Tubes (72-42-20, 03-280) and nut No. 4 Bearing Compartment Tubes (72-42-20, 03-300). Torque the nut to 24 lbfin to 36 lbfin (2.712 Nm to 4.067 Nm).
1. Refer to Figure, Figure and Figure
  SBE 72-0087: No. 4 bearing scavenge tube with heatshields
2. Install the heatshields ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20, 01-340 and ENGINE-NO.4 BEARING COMPARTMENT TUBES 01-360) over the inner end of the No. 4 bearing pressure tube with the holes over the spacer studs, refer to Figure. Install the nuts No. 4 Bearing Front Compartment Assembly (72-42-30,01-240). Torque the nuts to 24 lbfin to 36 lbfin (2.712 Nm to 4.067 Nm). Safety the nuts with CoMat 02-141 LOCKWIRE. Safety the small ends of the heatshields with three full turns minimum of CoMat 02-150 LOCKWIRE. Twist the lockwire a minimum of three times away from the rotor.
3. Install the heatshields No. 4 Bearing Compartment Tubes (72-42-20, 02-380 and No. 4 Bearing Compartment Tubes 02-400) over the inner end of the No. 4 bearing scavenge tube (outer first and inner second) with the holes over the spacer studs, refer to Figure. Install the nuts No. 4 Bearing Front Compartment Assembly (72-42-30,01-240). Torque the nuts to 24 lbfin to 36 lbfin (2.712 Nm to 4.067 Nm). Safety the nuts with CoMat 02-141 LOCKWIRE. Safety the small ends of the heatshields with three full turns minimum of CoMat 02-141 LOCKWIRE. Twist the lockwire a minimum of three times away from the rotor.
4. Install the heatshields No. 4 Bearing Compartment Tubes (72-42-20, 05-240 and No. 4 Bearing Compartment Tubes 05-260) over the inner end of the No. 4 bearing cooling air tubes, refer to Figure. Safety both ends of the three heatshields with three full turns minimum of CoMat 02-150 LOCKWIRE. Twist the lockwire a minimum of three times away from the rotor.
1. Refer to Figure, Figure and Figure
  SBE 72-0004: No. 4 bearing scavenge tube without heatshields
  SBE 72-0120: New No. 4 bearing scavenge tube and gasket
2. Install the heatshields ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20, 01-340 and ENGINE-NO.4 BEARING COMPARTMENT TUBES 01-360) over the inner end of the No. 4 bearing pressure tube with the holes over the spacer studs, refer to Figure. Install the nuts No. 4 Bearing Front Compartment Assembly (72-42-30,01-240). Torque the nuts to 24 lbfin to 36 lbfin (2.712 Nm to 4.067 Nm). Safety the nuts with CoMat 02-141 LOCKWIRE. Safety the small ends of the heatshields with three full turns minimum of CoMat 02-150 LOCKWIRE. Twist the lockwire a minimum of three times away from the rotor.
3. Install two nuts No. 4 Bearing Front Compartment Assembly (72-42-30,01-240) onto the two spacers No. 4 Bearing Front Compartment Assembly (72-42-30,01-200) adjacent to the No. 4 bearing scavenge tube, refer to Figure. Torque the nuts to 24 lbfin to 36 lbfin (2.712 Nm to 4.067 Nm). Safety the nuts with CoMat 02-141 LOCKWIRE.
4. Install the heatshields No. 4 Bearing Compartment Tubes (72-42-20, 05-240 and No. 4 Bearing Compartment Tubes 05-260) over the inner end of the No. 4 bearing cooling air tubes, refer to Figure. Safety both ends of the three heatshields with three full turns minimum of CoMat 02-150 LOCKWIRE. Twist the lockwire a minimum of three times away from the rotor.
1. Refer to Figure, Figure and Figure.
2. Install the heatshields ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20,01-340) and ENGINE-NO.4 BEARING COMPARTMENT TUBES (72-42-20,01-360) over the inner end of the No. 4 bearing pressure tube with the holes over the spacer studs. Install the nuts No. 4 Bearing Front Compartment Assembly (72-42-30,01-240). Torque the nuts to 24 lbfin to 36 lbfin (2.7 Nm to 4.1 Nm). Safety the nuts with CoMat 02-141 LOCKWIRE. Safety the small ends of the heatshields with three full turns minimum of CoMat 02-150 LOCKWIRE. Twist the lockwire a minimum of three times away from the rotor.
3. Install two nuts No. 4 Bearing Front Compartment Assembly (72-42-30,01-240) onto the two spacers No. 4 Bearing Front Compartment Assembly (72-42-30,01-200) adjacent to the No. 4 bearing scavenge tube. Torque the nuts to 24 lbfin to 36 lbfin (2.7 Nm to 4.1 Nm). Safety the nuts with CoMat 02-141 LOCKWIRE.
4. Install the heatshields No. 4 Bearing Compartment Tubes (72-42-20,05-240) and No. 4 Bearing Compartment Tubes (72-42-20,05-260) over the inner end of the No. 4 bearing cooling air tubes. Safety both ends of the three heatshields with three full turns minimum of CoMat 02-150 LOCKWIRE. Twist the lockwire a minimum of three times away from the rotor.
1. Refer to Figure and Figure
2. Put the IAE 1P16102 Lift sling 1 off on a hoist. Lower the hoist to the outer combustion chamber Outer Combustion Chamber Assembly (72-42-61,01-501).
3. Attach the three cables (equally spaced) to the holes nearest the rear end of the combustion chamber.
4. Lift the hoist until tension is felt on the lift sling cables.
5. Lift the outer combustion chamber and install it in to the diffuser case.
1. Refer to Figure.
2. Align the bolt holes in the outer combustion chamber with the bolt holes in the diffuser case.
3. Install the two IAE 1P16231 Alignment pin, equally spaced, to the bosses on the outer diameter of the diffuser case and retract the inner portion of the pins.
4. Push the inner portion of the alignment pins to align the combustion chamber mount lugs with the diffuser case at two places.
5. Install three doweled end bolts ENGINE-COMBUSTION CHAMBER RETAINING BOLTS (72-42-62,01-040) to attach the outer combustion chamber to the diffuser case and torque the bolts to 550 lbfin to 650 lbfin (62.1 Nm to 73.4 Nm).
6. Remove one alignment pin at a time and install the two remaining doweled end bolts. Torque the bolts to 550 lbfin to 650 lbfin (62.1 Nm to 73.4 Nm).
7. Release the tension on the lift sling cables and remove the cables from the combustion chamber. Remove the lift sling from the hoist.
8. CAUTION
  TWO PERSONS ARE REQUIRED TO TURN THE DIFFUSER CASE.
  Turn the diffuser case so the front flange is up.
1. Lubricate the plug Diffuser Case Assembly And Fittings (72-42-10,01-020) threads with CoMat 10-129 ANTI-SEIZE PASTE or CoMat 10-094 ANTI-SEIZE COMPOUND, PURE Ni-SPECIAL.
2. Install the plugs and the gaskets Diffuser Case Assembly And Fittings (72-42-10,01-010). Wipe off excess paste.
3. Torque the plugs to 70 lbfin to 80 lbfin (7.909 Nm to 9.039 Nm).
4. Safety the plugs with CoMat 02-141 LOCKWIRE.
1. Refer to Figure
  SBE 72-0221: Introduce a new diffuser case
2. Lubricate the plug Diffuser Case Assembly And Fittings (72-42-10,01-020) threads with CoMat 10-129 ANTI-SEIZE PASTE or CoMat 10-094 ANTI-SEIZE COMPOUND, PURE Ni-SPECIAL.
3. Install the plugs and the gaskets Diffuser Case Assembly And Fittings (72-42-10,01-010). Wipe off excess paste.
4. Torque the plugs to 70 lbfin to 80 lbfin (7.909 Nm to 9.039 Nm).
5. Safety the plugs with CoMat 02-141 LOCKWIRE.
1. Refer to Figure
2. Lubricate the plug Diffuser Case Assembly And Fittings (72-42-10,01-020) threads with CoMat 10-129 ANTI-SEIZE PASTE or CoMat 10-094 ANTI-SEIZE COMPOUND, PURE Ni-SPECIAL.
3. Install the plugs and the gaskets Diffuser Case Assembly And Fittings (72-42-10,01-010). Wipe off excess paste.
4. Torque the plugs to 70 lbfin to 80 lbfin (7.909 Nm to 9.039 Nm).
5. Safety the plugs with CoMat 02-141 LOCKWIRE.
1. Refer to Figure.
2. Lubricate the bolt ENGINE-ATTACH PARTS & FITTINGS-HP SYSTEM (72-40-00, 06-015/050) threads with CoMat 10-077 APPROVED ENGINE OILS.
3. Install the bolts and the washers into the Diffuser Case Assembly.
4. Torque the bolts to 65 lbfin to 85 lbfin (7.344 Nm to 9.603 Nm).
5. Safety the bolts with CoMat 02-141 LOCKWIRE.
1. Refer to Figure
2. Install the gasket Diffuser Case Assembly And Fittings (72-42-10,01-010) in the diffuser case boss.
3. Put the connector Diffuser Case Assembly And Fittings (72-42-10,01-100) in to the boss and tighten it by hand.
4. Tighten and torque the last connector to 110 lbfin to 120 lbfin (12.428 Nm to 13.558 Nm).
5. Install the cap Diffuser Case Assembly And Fittings (72-42-10, 01-120) on to the connector.
6. Hold the connector with a wrench so that it will not turn and torque the cap to 135 lbfin to 145 lbfin (15.253 Nm to 16.383 Nm).
7. Safety the connector to the boss with CoMat 02-141 LOCKWIRE.
1. Refer to Figure
  SBE 72-0221: Introduce a new diffuser case
2. Install the gasket Diffuser Case Assembly And Fittings (72-42-10,01-010) in the diffuser case boss.
3. Put the connector Diffuser Case Assembly And Fittings (72-42-10,01-100) into the boss and tighten it by hand.
4. Tighten and torque the connector to 110 lbfin to 120 lbfin (12.428 Nm to 13.558 Nm).
5. Install the cap Diffuser Case Assembly And Fittings (72-42-10,01-120) onto the connector.
6. Hold the connector with a wrench so that it will not turn and torque the cap to 135 lbfin to 145 lbfin (15.253 Nm to 16.383 Nm).
7. Safety the connector to the boss with CoMat 02-141 LOCKWIRE.
1. Refer to Figure
2. Install the gasket Diffuser Case Assembly And Fittings (72-42-10,01-010) in the diffuser case boss.
3. Put the connector Diffuser Case Assembly And Fittings (72-42-10,01-100) into the boss and tighten it by hand.
4. Tighten and torque the connector to 110 lbfin to 120 lbfin (12.428 Nm to 13.558 Nm).
5. Install the cap Diffuser Case Assembly And Fittings (72-42-10,01-120) onto the connector.
6. Hold the connector with a wrench so that it will not turn and torque the cap to 135 lbfin to 145 lbfin (15.253 Nm to 16.383 Nm).
7. Safety the connector to the boss with CoMat 02-141 LOCKWIRE.
1. Refer to Figure
2. Install the gasket Diffuser Case Assembly And Fittings (72-42-10,01-050) to the union Diffuser Case Assembly And Fittings (72-42-10,01-030) and install to the boss on the diffuser case.
3. CAUTION
  WHEN YOU USE AN EXTENSION ON A TORQUE WRENCH, THE ACTUAL TORQUE READING WILL BE LESS THAN THE TORQUE GIVEN BELOW. REFER TO THE SPM TASK 70-41-01-400-501.
  Torque the union to 478 lbfin to 522 lbfin (54 Nm to 59 Nm).
1. Refer to Figure
  SBE 72-0221: Introduce a new diffuser case
2. Install the gasket Diffuser Case Assembly And Fittings (72-42-10,01-050) to the union Diffuser Case Assembly And Fittings (72-42-10,01-030) and install to the boss on the diffuser case.
3. CAUTION
  WHEN YOU USE AN EXTENSION ON A TORQUE WRENCH, THE ACTUAL TORQUE WRENCH READING WILL BE LESS THAN THE TORQUE GIVEN BELOW. REFER TO TASK 70-41-01-400-501.
  Torque the union to 478 lbfin to 522 lbfin (54 Nm to 59 Nm).
1. Refer to Figure
2. Install the gasket Diffuser Case Assembly And Fittings (72-42-10,01-050) to the union Diffuser Case Assembly And Fittings (72-42-10,01-030) and install to the boss on the diffuser case.
3. CAUTION
  WHEN YOU USE AN EXTENSION ON A TORQUE WRENCH, THE ACTUAL TORQUE WRENCH READING WILL BE LESS THAN THE TORQUE GIVEN BELOW. REFER TO TASK 70-41-01-400-501.
  Torque the union to 478 lbfin to 522 lbfin (54 Nm to 59 Nm).
1. Refer to Figure.
2. 1. Locate the inner diameter of bolthole flange inside the diffuser case. It will have 30, silver plated, self locking, clinch nuts attached below the flange.
  2. Locate the offset hole in the inner diameter of bolthole flange, which is 185 degrees clockwise from the dowel pin on the outer diameter front flange of the diffuser case.
3. Chill outlet guide vane case in dry ice for 25 minutes or more to sufficiently assemble the outlet guide vane to the exit stator.
4. 1. If repair, VRS6233 TASK 72-42-40-300-004 (REPAIR-004) was done, visually examine the coat surface.
5. CAUTION
  DO NOT ROTATE STAND FULLY AROUND BECAUSE THE DIFFUSER WILL HIT THE FLOOR.
  Position diffuser case by rotating IAE 1P16005 Build stand 1 off as necessary to place case with larger outer diameter flange down towards the floor, but without hitting the floor.
6. Install IAE 1P16231 Alignment pin 2 off in the diffuser case 180 degrees apart.
7. Remove outlet guide vane case from dry ice.
8. 1. Align the off-set holes in the outlet guide vane case and the diffuser case. Lightly tap to seat if necessary.
  2. Install six of the bolts ENGINE-STATIC SEAL (72-42-50,01-102) at equal distances around the Outlet Guide Vane (OGV) case.
  3. Turn each bolt one turn in sequence to pull the Outlet Guide Vane (OGV) case down equally.
    Do Step again until the Outlet Guide Vane (OGV) case is fully installed.
  4. Remove the six bolts.
9. 1. Align the off-set holes in the static seal assembly and the diffuser case, and align the six vent tubes with the tube connectors on the seal assembly.
  2. Remove all of the offset markings that are there before.
  3. Install six of the bolts ENGINE-STATIC SEAL (72-42-50,01-102) at equal distances around the static seal assembly.
  4. Turn each bolt one turn in sequence to pull the static seal assembly down equally.
  5. Do Step again until the static seal assembly is fully installed.
  6. Remove the alignment pins.
10. Install 20 of the remaining 24 bolts ENGINE-STATIC SEAL (72-42-50,01-102) through the seal assembly and outlet guide vane case, in to the diffuser case. Install the 20 bolts by hand and start with the off-set hole. Do not install every third bolt after the off-set hole. Torque the bolts to 85 lbfin to 105 lbfin (10.0 Nm to 12.0 Nm).
11. 1. Align the 10 holes in the heatshield with the ten empty hole positions.
  2. Install the other 10 bolts through the heatshield, the seal assembly and the outlet guide vane case, in to the diffuser case. Torque the bolts to 85 lbfin to 105 lbfin (10.0 Nm to 12.0 Nm).
1. Refer to Figure.
  SBE 72-0143: Heatshield not required
  SBE 72-0221: Introduce a new diffuser case
2. 1. Locate the inner diameter of bolthole flange inside the diffuser case. It will have 30, silver plated, self locking, clinch nuts on it's below side.
  2. Locate the offset hole in the inner diameter of bolthole flange, which is 185 degrees clockwise from the dowel pin on the outer diameter front flange of the diffuser case.
3. Chill outlet guide vane case in dry ice for 25 minutes or more to sufficiently assemble the outlet guide vane to the exit stator.
4. 1. If repair, VRS6233 TASK 72-42-40-300-004 (REPAIR-004) was done, visually examine the coat surface.
5. CAUTION
  DO NOT ROTATE STAND FULLY AROUND BECAUSE THE DIFFUSER WILL HIT THE FLOOR.
  Position diffuser case by rotating IAE 1P16005 Build stand 1 off as necessary to place case with larger outer diameter flange down towards the floor, but without hitting the floor.
6. Install IAE 1P16231 Alignment pin 2 off in the diffuser case 180 degrees apart.
7. Remove outlet guide vane case from dry ice.
8. 1. Align the off-set holes in the outlet guide vane case and the diffuser case. Lightly tap to seat if necessary.
  2. Install six of the bolts ENGINE-STATIC SEAL (72-42-50,01-102) at equal distances around the outlet guide vane case.
  3. Turn each bolt one turn in sequence to pull the outlet guide vane case down equally.
    Do Step again until the outlet guide vane case is fully installed.
  4. Remove the six bolts.
9. 1. Align the off-set holes in the static seal assembly and the diffuser case, and align the two vent tube connectors on the seal assembly.
  2. Remove all of the offset markings that are there before.
  3. Install six of the bolts ENGINE-STATIC SEAL (72-42-50,01-102) at equal distances around the static seal assembly.
  4. Turn each bolt one turn in sequence to pull the static seal assembly down equally.
  5. Do Step again until the static seal assembly is fully installed.
  6. Remove the alignment pins.
10. Install the remaining 24 bolts ENGINE-STATIC SEAL (72-42-50,01-102) through the seal assembly and outlet guide vane case and into the diffuser case. Torque the bolts to 85 lbfin to 105 lbfin (10.0 Nm to 12.0 Nm).
1. Refer to Figure.
2. 1. Locate the inner diameter of bolthole flange inside the diffuser case. It will have 30, silver plated, self locking, clinch nuts on it's below side.
  2. Locate the offset hole in the inner diameter of bolthole flange, which is 185 degrees clockwise from the dowel pin on the outer diameter front flange of the diffuser case.
3. Chill outlet guide vane case in dry ice for 25 minutes or more to sufficiently assemble the outlet guide vane to the exit stator.
4. 1. If repair, VRS6233 TASK 72-42-40-300-004 (REPAIR-004) was done, visually examine the coat surface.
5. CAUTION
  DO NOT ROTATE STAND FULLY AROUND BECAUSE THE DIFFUSER WILL HIT THE FLOOR.
  Position diffuser case by rotating IAE 1P16005 Build stand as necessary to place case with larger outer diameter flange down towards the floor, but without hitting the floor.
6. Install IAE 1P16231 Alignment pin in the diffuser case 180 degrees apart.
7. Remove outlet guide vane case from dry ice.
8. 1. Align the off-set holes in the outlet guide vane case and the diffuser case. Lightly tap to seat if necessary.
  2. Install six of the bolts ENGINE-STATIC SEAL (72-42-50,01-102) at equal distances around the outlet guide vane case.
  3. Turn each bolt one turn in sequence to pull the outlet guide vane case down equally.
    Do Step again until the outlet guide vane case is fully installed.
  4. Remove the six bolts.
9. 1. Align the off-set holes in the static seal assembly and the diffuser case, and align the two vent tube connectors on the seal assembly.
  2. Remove all of the offset markings that are there before.
  3. Install six of the bolts ENGINE-STATIC SEAL (72-42-50,01-102) at equal distances around the static seal assembly.
  4. Turn each bolt one turn in sequence to pull the static seal assembly down equally.
  5. Do Step again until the static seal assembly is fully installed.
  6. Remove the alignment pins.
10. Install the remaining 24 bolts ENGINE-STATIC SEAL (72-42-50,01-102) through the seal assembly and outlet guide vane case and into the diffuser case. Torque the bolts 85 lbfin to 105 lbfin (10.0 Nm to 12.0 Nm).
1. Refer to Figure.
2. CAUTION
  APPLY ANTI-SEIZE PASTE OR ANTI-SEIZE LUBRICANT MODERATELY TO THE IGNITER THREAD. DO NOT APPLY TOO MUCH ANTI-SEIZE PASTE OR LUBRICANT, AS IT CAN GO INTO THE ENGINE.
  Apply CoMat 10-129 ANTI-SEIZE PASTE or CoMat 10-109 HIGH TEMPERATURE ANTI-SEIZELUBRICANT to the igniter threaded insert. Remove all unwanted compound.
3. Install the threaded inserts Igniter Plug (74-21-41,01-020) in the diffuser case until the bottom of the flange of the threaded inserts touches the diffuser case.
4. Measure the distance E from the top of the inserts to the point L on the outer combustion chamber nearest the fuel nozzle. Use the IAE 1P16092 Igniter immersion gage 1 off.
5. Measure the distance D from the surface of the igniter plug that touches the threaded insert to the inner end of the igniter plug.
6. Subtract distance E from distance D which equals initial immersion depth F.
7. Use initial immersion depth F and (if required) one or two classified spacers Igniter Plug (74-21-41, 01-040) to get an immersion depth of 0.040 to 0.080 in. (1.02 to 2.03 mm). A maximum of two spacers may be used at each igniter location. Total thickness of the two spacers must not be more than 0.300 in. (7.62 mm).
8. Remove the threaded inserts if necessary and install the spacers to get the correct immersion depth and install the threaded inserts.
9. Torque the threaded inserts to 600 lbfin to 700 lbfin (67.791 Nm to 79.089 Nm).
10. Make sure the threads of the igniter plugs are clean.
11. CAUTION
  APPLY ANTI-SEIZE PASTE OR ANTI-SEIZE LUBRICANT MODERATELY TO THE PLUG THREAD. YOU MUST NOT APPLY TOO MUCH PASTE OR ANTI-SEIZE LUBRICANT, AS IT CAN GO IN TO THE ENGINE.
  Apply CoMat 10-109 HIGH TEMPERATURE ANTI-SEIZELUBRICANT or CoMat 10-129 ANTI-SEIZE PASTE to the plug thread.
12. Install the igniter plugs. Hold the inserts with a wrench while you tighten the igniter plugs so the inserts will not turn.
  NOTE
  When you install the igniter plugs, make sure that the plugs go through the outer liner of the combustion chamber.
13. Torque the igniter plugs to 300 lbfin to 360 lbfin (33.895 Nm to 40.675 Nm).
1. Refer to Figure.
2. Install Fuel Nozzle And Support Assembly (73-13-41,01-010) gaskets 20 off in to the recesses on the diffuser case. Use CoMat 01-573 WAX BLEND, PARAFFIN to hold the gaskets in place.
3. Install the 20 fuel nozzles Fuel Nozzle And Support Assembly (73-13-41,01-020).
4. Install the brackets Fuel Nozzle And Support Assembly (73-13-41,01-120), Fuel Nozzle And Support Assembly (73-13-41,01-180), Fuel Nozzle And Support Assembly (73-13-41,01-190), Fuel Nozzle And Support Assembly (73-13-41,01-260), Fuel Nozzle And Support Assembly (73-13-41,01-340), Fuel Nozzle And Support Assembly (73-13-41,01-400), Fuel Nozzle And Support Assembly (73-13-41,01-450) and Fuel Nozzle And Support Assembly (73-13-41,01-480) on the fuel nozzles. Attach the fuel nozzles and the fuel nozzles and brackets with the 60 bolts Fuel Nozzle And Support Assembly (73-13-41,01-040).
5. Torque the bolts to 65 lbfin to 85 lbfin (7.3 Nm to 9.6 Nm). Safety the bolts with CoMat 02-141 LOCKWIRE. Safety the fuel nozzles to the doweled end bolts with CoMat 02-141 LOCKWIRE. Safety the igniter plug threaded inserts to bolt on adjacent fuel nozzles with the lockwire.
1. Refer to Figure.
  SBE 73-0147: Replace the Fuel Manifolds
2. Install Fuel Nozzle And Support Assembly (73-13-41,01-010) gaskets 20 off in to the recesses on the diffuser case. Use CoMat 01-573 WAX BLEND, PARAFFIN to hold the gaskets in place.
3. Install the 20 fuel nozzles Fuel Nozzle And Support Assembly (73-13-41,01-020).
4. Install the brackets Fuel Nozzle And Support Assembly (73-13-41,01-120), Fuel Nozzle And Support Assembly (73-13-41,01-140), Fuel Nozzle And Support Assembly (73-13-41,01-150), Fuel Nozzle And Support Assembly (73-13-41,01-160), Fuel Nozzle And Support Assembly (73-13-41,01-180), Fuel Nozzle And Support Assembly (73-13-41,01-190), Fuel Nozzle And Support Assembly (73-13-41,01-260), Fuel Nozzle And Support Assembly (73-13-41,01-340), Fuel Nozzle And Support Assembly (73-13-41,01-400), Fuel Nozzle And Support Assembly (73-13-41,01-450), Fuel Nozzle And Support Assembly (73-13-41,01-480) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-165) on the fuel nozzles. Attach the fuel nozzles and the fuel nozzles and brackets with the 60 bolts Fuel Nozzle And Support Assembly (73-13-41,01-040).
5. Torque the bolts to 65 lbfin to 85 lbfin (7.3 Nm to 9.6 Nm). Safety the bolts with CoMat 02-141 LOCKWIRE. Safety the fuel nozzles to the doweled end bolts with CoMat 02-141 LOCKWIRE. Safety the igniter plug threaded inserts to bolt on adjacent fuel nozzles with the lockwire.
1. Refer to Figure, Figure, Figure, Figure, Figure and Figure.
2. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-001) packings 16 off.
3. Install the packings on the eight transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-020) and install the transfer tubes on to the fuel nozzles.
4. Install Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-050) gaskets 8 off on to the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders. The new fuel supply tubes have dry anti-gallant at production.
5. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-360), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
6. Attach the four fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-360, Fuel Nozzle Supply Fuel Manifolds 03-260, Fuel Nozzle Supply Fuel Manifolds 03-160 and Fuel Nozzle Supply Fuel Manifolds 03-060) in the sequence written.
7. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-460), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
8. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-460), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-540) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
9. Attach the three loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-460), the two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-480 and Fuel Nozzle Supply Fuel Manifolds 03-540) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
10. Attach the four loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-460), the two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-520) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
11. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-001) packings 12 off.
12. Install the packings on the six transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-020) and install the transfer tubes on to the fuel nozzles.
13. Install Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-050) gaskets 6 off on the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
14. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
15. Attach the three fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-060) in the sequence written.
16. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-010) packings 12 off.
17. Install the packings on to the six transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-020) and install the transfer tubes on the fuel nozzles.
18. Install Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-050) gaskets 6 off on to the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
19. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
20. Install the fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41, 01-260, Fuel Nozzle Supply Fuel Manifolds 01-160 and Fuel Nozzle Supply Fuel Manifolds 01-060) in the sequence written.
21. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420) to the bracket.
22. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420).
23. Attach the three loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), the two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41, 01-380 and Fuel Nozzle Supply Fuel Manifolds 01-400) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420).
  NOTE
  The tube nuts will be torqued when the pressure test has been completed.
24. CAUTION
  INSTALLING TUBE NUT IS CRITICAL AND NEED FOCUS INSPECTION. AFTER HAND TIGHTENING, THE COUPLING NUT MUST BE COMPLETELY SEATED AND NO THREADS MUST BE VISIBLE ON THE FUEL NOZZLE.
  Tighten the tube nuts by hand, but do not torque them.
25. Torque the clamp nuts to 36 lbfin to 40 lbfin (4.069 Nm to 4.519 Nm).
1. Refer to Figure, Figure, Figure, Figure, Figure and Figure.
2. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-001) packings 16 off.
3. Install the packings on the eight transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-020) and install the transfer tubes on to the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
4. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-360), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
5. Attach the four fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-360), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-060) in the sequence written.
6. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-480) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
7. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-460), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-540) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
8. Attach the three loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-460), the two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-480) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-540) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
9. Attach the four loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-460), the two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-500) to the bracket.
10. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-001) packings 12 off.
11. Install the packings on the six transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-020) and install the transfer tubes on to the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
12. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
13. Attach the three fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-060) in the sequence written.
14. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-010) packings 12 off.
15. Install the packings on to the six tranfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-020) and install the transfer tubes on the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders. The new fuel supply tubes have dry anti-gallant at production.
16. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
17. Install the fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-060) in the sequence written.
18. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360) and the nut (73-11-41,01-420) to the bracket.
19. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420).
20. Attach the three loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), the two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-400) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420).
21. CAUTION
  INSTALLING TUBE NUT IS CRITICAL AND NEED FOCUS INSPECTION. AFTER HAND TIGHTENING, THE COUPLING NUT MUST BE COMPLETELY SEATED AND NO THREADS MUST BE VISIBLE ON THE FUEL NOZZLE.
  Tighten the tube nuts by hand, but do not torque them.
  NOTE
  The tube nuts will be torqued when the pressure test has been completed.
22. Torque the clamp nuts to 36 lbfin to 40 lbfin. (4.069 Nm to 4.519 Nm).
1. Refer to Figure, Figure, Figure, Figure, Figure and Figure.
2. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-001) packings 16 off.
3. Install the packings on the eight transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-020) and install the transfer tubes onto the fuel nozzles.
4. Install Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-050) gaskets 8 off onto the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
5. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
6. Attach the four fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-360), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-060) in the sequence written.
7. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
8. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-460), the bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-540) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
9. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-485) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450) to the brackets.
10. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
11. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
12. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
13. Attach the three loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-485) and two nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
14. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-001) packings 12 off.
15. Install the packings on the six transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-020) and install the transfer tubes onto the fuel nozzles.
16. Install Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-050) gaskets 6 off onto the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
17. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
18. Attach the three fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-106) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-060) in the sequence written.
19. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-010) packings 12 off.
20. Install the packings on the six transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-020) and install the transfer tubes onto the fuel nozzles.
21. Install Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-050) gaskets 6 off onto the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
22. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
23. Install the fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-160) and (73-11-41,01-060) in the sequence written.
24. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420) to the bracket.
25. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420).
26. Attach the three loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), the two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-400) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420).
  NOTE
  The tube nuts will be torqued when the pressure test has been completed.
27. CAUTION
  INSTALLING TUBE NUT IS CRITICAL AND NEED FOCUS INSPECTION. AFTER HAND TIGHTENING, THE COUPLING NUT MUST BE COMPLETELY SEATED AND NO THREADS MUST BE VISIBLE ON THE FUEL NOZZLE.
  Tighten the tube nuts by hand, but do not torque them.
28. Torque the clamp nuts to 36 lbfin to 40 lbfin (4.069 Nm to 4.519 Nm).
1. Refer to Figure, Figure, Figure, Figure, Figure and Figure.
2. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-001) packings 16 off.
3. Install the packings on the eight transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-020) and install the transfer tubes onto the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
4. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
5. Attach the four fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-360), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-060) in the sequence written.
6. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
7. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-460), the bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-540) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
8. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-485) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450) to the brackets.
9. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
10. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
11. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
12. Attach the three loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-450), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-485) and two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-480) and the nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-500) to the bracket.
13. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-001) packings 12 off.
14. Install the packings on the six transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-020) and install the transfer tubes onto the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
15. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
16. Attach the three fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-060) in the sequence written.
17. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-010) packings 12 off.
18. Install the packings onto the six transfer tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-020) and install the transfer tubes onto the fuel nozzles.
  NOTE
  If the fuel supply tubes were replaced with new tubes, then do not apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulder. The new fuel supply tubes have dry anti-gallant at production.
19. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-160), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-060) that attach to the fuel nozzle. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure.
20. Install the fuel manifolds Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-260), Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-160) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-060) in the sequence written.
21. Attach the loop clamp Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), the bolt Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and the nut Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420) to the bracket.
22. Attach the two loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-380) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420).
23. Attach the three loop clamps Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-360), the two bolts Fuel Nozzle Supply Fuel Manifolds (73-11-41, 01-380 and Fuel Nozzle Supply Fuel Manifolds 01-400) and nuts Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-420).
  NOTE
  The tube nuts will be torqued when the pressure test has been completed.
24. CAUTION
  INSTALLING TUBE NUT IS CRITICAL AND NEED FOCUS INSPECTION. AFTER HAND TIGHTENING, THE COUPLING NUT MUST BE COMPLETELY SEATED AND NO THREADS MUST BE VISIBLE ON THE FUEL NOZZLE.
  Tighten the tube nuts by hand, but do not torque them.
25. Torque the clamp nuts to 36 lbfin to 40 lbfin (4.069 Nm to 4.519 Nm).
1. Refer to Figure.
2. Put the bracket above the diffuser case flange with the long leg down and at the position of holes 36, 37, 38, 43 and 44.
3. 1. Use 0.3125 UNIF-24 bolts which are 0.928 to 0.948in. (23.57 to 24.08 mm) long.
  2. Lubricate the bolts with CoMat 10-129 ANTI-SEIZE PASTE.
4. 1. Put a washer under the head of each bolt.
  2. Install a washer and nut on each bolt.
  3. Tighten the nuts with your hand.
  4. Do not install a work bolt in hole 36 or 37.
1. Refer to Figure, Figure and Figure.
2. 1. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to ENGINE FUEL AND CONTROL-FUEL DISTRIBUTION VALVE (73-13-43,01-060) packings 10 off.
  2. Install the packings on the adapters ENGINE FUEL AND CONTROL-FUEL DISTRIBUTION VALVE (73-13-43,01-080).
  3. Apply CoMat 10-077 APPROVED ENGINE OILS to the threads of the adapters.
  4. Install the adapters to the 10 openings on the rear of the valve.
  5. Torque the adapters to 150 lbfin to 170 lbfin (16.948 Nm to 19.207 Nm).
3. 1. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41, 01-010, Fuel Nozzle Supply Fuel Manifolds 02-001 and Fuel Nozzle Supply Fuel Manifolds 03-001) packings 20 off.
  2. Install the two packings to each of the transfer tubes.
  3. Install each transfer tube to each of the adapters on the fuel distribution valve.
4. Install Fuel Nozzle Supply Fuel Manifolds (73-11-41, 01-040) gaskets 3 off, Fuel Nozzle Supply Fuel Manifolds (73-11-41, 02-040) gaskets 3 off and Fuel Nozzle Supply Fuel Manifolds (73-11-41, 03-040) gaskets 4 off to the conical seat on the end of each adapter on the valve.
5. Install the valve to the rear mount bracket on Flange K and install two bolts ENGINE FUEL AND CONTROL-FUEL DISTRIBUTION VALVE (73-13-43, 01-040) 180 lbfin to 200 lbfin (20 Nm to 24 Nm).
6. 1. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes that attach to the fuel distribution valve. Refer to the SPM TASK 70-38-38-380-501. Refer to Figure, Figure and Figure.
  2. CAUTION
    INSTALLING TUBE NUT IS CRITICAL AND NEED FOCUS INSPECTION. AFTER HAND TIGHTENING, THE COUPLING NUT MUST BE COMPLETELY SEATED AND NO THREADS MUST BE VISIBLE ON THE ADAPTER.
    Connect the fuel manifolds to the adapters and tighten them by hand. Wipe off excess paste.
1. Refer to Figure, Figure, Figure and Figure.
2. 1. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to the packings 10 off.
  2. Install the packings on to the adaptors ENGINE FUEL AND CONTROL-FUEL DISTRIBUTION VALVE (73-13-43,01-080).
  3. Apply CoMat 10-077 APPROVED ENGINE OILS to the threads of the adaptors.
  4. Install the adaptors to the 10 openings on the rear of the valve.
  5. Torque the adaptors to 150 lbfin to 170 lbfin. (16.948 Nm to 19.207 Nm).
3. 1. Apply CoMat 10-077 APPROVED ENGINE OILS or CoMat 10-087 SEALING RING LUBRICANT to Fuel Nozzle Supply Fuel Manifolds (73-11-41,01-010), Fuel Nozzle Supply Fuel Manifolds (73-11-41,02-001) and Fuel Nozzle Supply Fuel Manifolds (73-11-41,03-001) packings 20 off.
  2. Install the two packings to each of the transfer tubes.
  3. Install each transfer tube to each of the adaptors on the fuel distribution valve.
4. Install the valve to the rear mount bracket on flange K and install two bolts ENGINE FUEL AND CONTROL-FUEL DISTRIBUTION VALVE (73-13-43,01-040) hand tight.
5. 1. Apply CoMat 10-129 ANTI-SEIZE PASTE to the shoulders of the end fittings and also on the nut threads of the fuel supply tubes that attach to the fuel distribution valve. Refer to the SPM TASK 70-38-38-380-501, Figure, Figure and Figure.
  2. CAUTION
    INSTALLING TUBE NUT IS CRITICAL AND NEED FOCUS INSPECTION. AFTER HAND TIGHTENING, THE COUPLING NUT MUST BE COMPLETELY SEATED AND NO THREADS MUST BE VISIBLE ON THE FUEL NOZZLE.
    Connect the fuel manifolds to the adaptors and tighten them by hand. Wipe off excess paste.
1. Install the IAE 1P16042 Test adapter 1 off to the front end of the fuel distribution valve and secure with the bolts. Tighten the bolts by hand.
2. Attach a 100 psi (689.5 kPa) air source to the test adapter.
3. Supply clean air at 95 - 105 psi (655.0 to 723.9 kPa) through the system and check for leaks.
4. Do a check for the fuel manifold tube coupling nuts for leaks at the distribution valve with CoMat 10-045 LEAK CHECK FLUID, BUBBLES-TYPE.
5. Do a check of the fuel nozzles for leaks at the braze joint around the threaded inlet fitting with CoMat 10-045 LEAK CHECK FLUID, BUBBLES-TYPE.
6. Maintain air supply for 5 minutes. No leakage from any surface, joint or connection is permitted. Repair any leaks you find. Remove and replace any leaking fuel nozzles by SUBTASK 72-42-00-040-061 and SUBTASK 72-42-00-430-062 after you complete the leak test inspection.
7. Decrease the air supply to 0 psi (0 kPa) and remove the air source from the test adapter.
8. Remove the three bolts which secure the test adapter and remove the test adapter from the valve.
1. Torque the tube nuts at the fuel distribution valve with the IAE 1P16139 Wrench to between 85 lbfin to 95* lbfin (9.604 Nm to 10.734 Nm).
2. Repeat step A. without loosening the tube nuts.
3. Repeat step B. until all coupling nuts hold the necessary torque. If any coupling nut shows it will not hold torque after four torque procedures, replace and/or repair the fuel manifold or seals.
4. Torque the 20 tube nuts at the fuel nozzles to 205 lbfin to 225 lbfin (23.162 Nm to 25.422 Nm).
5. Repeat step D. without loosening the tube nuts.
6. Repeat step E. until all coupling nuts hold the necessary torque. If any coupling nut shows it will not hold torque after four torque procedures, replace and/or repair the fuel tube or seals.
7. Lock the nuts with CoMat 02-141 LOCKWIRE.
8. Torque the bolts which hold the valve to the brackets to 180 lbfin to 200 lbfin (20.337 Nm to 22.597 Nm).
1. CAUTION
  WHEN YOU USE THE IAE 1P16139 Wrench, THE CORRECT TORQUE WILL HAVE TO BE CALCULATED USING THE FORMULA IN THE STANDARD PRACTICES MANUAL (TASK 70-41-01-400-501).
  CAUTION
  TIGHTENING TUBE NUT IS CRITICAL AND REQUIRES FOCUS INSPECTION. MAKE SURE TO TIGHTEN THE TUBE NUTS TO THE SPECIFIED TORQUE LIMITS. AFTER TIGHTENING, THREADS SHOULD NOT BE VISIBLE. DO NOT OVER TORQUE THE TUBE NUTS. INCORRECT TORQUE VALUES AND VISIBLE THREADS ON THE FUEL NOZZLE (OR) ON THE ADAPTER COULD RESULT IN DAMAGE TO THE ENGINE PARTS.
  Torque the tube nuts at the fuel distribution valve with the IAE 1P16139 Wrench to between 85 lbfin and 95* lbfin (9.604 Nm and 10.734 Nm).
2. Repeat step A. without loosening the tube nuts.
3. Repeat step B. until all coupling nuts hold the necessary torque. If any coupling nut shows it will not hold torque after four torque procedures, replace and/or repair the fuel manifold or seal.
4. Torque the 20 tube nuts at the fuel nozzle to 205 lbfin to 225 lbfin (23.162 Nm to 25.422 Nm).
5. Repeat step D. without loosening the tube nuts.
6. Repeat step E. until all coupling nuts hold the necessary torque. If any coupling nut shows it will not hold torque after four torque procedures, replace and/or repair the fuel tube or seal.
7. Make sure all clearances between the fuel distribution valve rear bracket and all the adjacent tubes are 0.090in. (2.286 mm) or more.
8. Safety the nuts with CoMat 02-141 LOCKWIRE.
9. Torque the bolts which hold the valve to the brackets to 180 lbfin to 200 lbfin (20.337 Nm to 22.597 Nm).
1. CAUTION
  WHEN YOU USE THE IAE 1P16139 Wrench, THE CORRECT TORQUE WILL HAVE TO BE CALCULATED USING THE FORMULA IN THE STANDARD PRACTICES MANUAL (TASK 70-41-01-400-501).
  CAUTION
  TIGHTENING TUBE NUT IS CRITICAL AND REQUIRES FOCUS INSPECTION. MAKE SURE TO TIGHTEN THE TUBE NUTS TO THE SPECIFIED TORQUE LIMITS. AFTER TIGHTENING, THREADS SHOULD NOT BE VISIBLE. DO NOT OVER TORQUE THE TUBE NUTS. INCORRECT TORQUE VALUES AND VISIBLE THREADS ON THE FUEL NOZZLE (OR) ON THE ADAPTER COULD RESULT IN DAMAGE TO THE ENGINE PARTS.
  Torque the tube nuts at the fuel distribution valve with the IAE 1P16139 Wrench to between 85 and 95* (9.604 and 10.734 Nm).
2. Repeat step A. without loosening the tube nuts.
3. Repeat step B. until all coupling nuts hold the necessary torque. If any coupling nut shows it will not hold torque after four torque procedures, replace and/or repair the fuel manifold or seal.
4. Torque the 20 tube nuts at the fuel nozzle to 205 lbfin to 225 lbfin (23.162 Nm to 25.422 Nm).
5. Repaet step D. without loosening the tube nuts.
6. Repeat step E. until all coupling nuts hold the necessary torque. If any coupling nut shows it will not hold torque after four torque procedures, replace and/or repair the fuel tube or seal.
7. Safety the nuts with CoMat 02-141 LOCKWIRE.
8. Torque the bolts which hold the valve to the brackets to 180 lbfin to 200 lbfin (20.337 Nm to 22.597 Nm).
1. CAUTION
  WHEN YOU USE THE IAE 1P16139 Wrench, THE CORRECT TORQUE WILL HAVE TO BE CALCULATED USING THE FORMULA IN THE STANDARD PRACTICES MANUAL (TASK 70-41-01-400-501).
  CAUTION
  TIGHTENING TUBE NUT IS CRITICAL AND REQUIRES FOCUS INSPECTION. MAKE SURE TO TIGHTEN THE TUBE NUTS TO THE SPECIFIED TORQUE LIMITS. AFTER TIGHTENING, THREADS SHOULD NOT BE VISIBLE. DO NOT OVER TORQUE THE TUBE NUTS. INCORRECT TORQUE VALUES AND VISIBLE THREADS ON THE FUEL NOZZLE (OR) ON THE ADAPTER COULD RESULT IN DAMAGE TO THE ENGINE PARTS.
  Torque the tube nuts at the fuel distribution valve with the IAE 1P16139 Wrench to between 85 and 95* (9.604 and 10.734 Nm).
2. Repeat step A. without loosening the tube nuts.
3. Repeat step B. until all coupling nuts hold the necessary torque. If any coupling nut shows it will not hold torque after four torque procedures, replace and/or repair the fuel manifold or seal.
4. Torque the 20 tube nuts at the fuel nozzle to 205 lbfin to 225 lbfin (23.162 Nm to 25.422 Nm).
5. Repeat step D. without loosening the tube nuts.
6. Repeat step E. until all coupling nuts hold the necessary torque. If any coupling nut shows its will not hold torque after four torque procedures, replace and/or repair the fuel tube or seal.
7. Safety the nuts with CoMat 02-141 LOCKWIRE.
8. Torque the bolts which hold the valve to the brackets to 180 lbfin to 200 lbfin (20.337 Nm to 22.597 Nm).
1. Refer to Figure
2. Install the gasket ENGINE FUEL AND CONTROL-P3/T3 SENSOR (73-22-15,01-010) on to the diffuser case boss.
  NOTE
  The gasket can be installed with the compression feature in either direction.
3. Align the bolt holes in the gasket with the bolt holes in the boss.
4. Lower the sensor ENGINE FUEL AND CONTROL-P3/T3 SENSOR (73-22-15,01-030) so that the extension goes in to the hole in the center of the boss.
5. Align the bolt holes in the sensor with the bolt holes in the boss.
6. Install the three bolts ENGINE FUEL AND CONTROL-P3/T3 SENSOR (73-22-15,01-050) through the bolt holes in the sensor and in to the bolt holes in the boss.
7. Torque the bolts to 65 lbfin to 85 lbfin (7.344 Nm to 9.604 Nm).
8. Lock the bolts with CoMat 02-141 LOCKWIRE.
1. Refer to Figure
2. Attach a hoist to the IAE 1P16173 Lift sling 1 off.
3. Attach the sling to the rear flange of the diffuser case assembly at equally spaced locations.
4. Remove the 10 bolts that attach the IAE 1P16004 Handling bracket handling brackets to the diffuser case assembly.
5. Remove the diffuser case assembly from the build stand using the sling and hoist.
6. Put the diffuser case assembly on a pallet.
7. Remove the sling and the hoist.
8. Put a cover of plastic over the diffuser case assembly.

Sheet 1

Sheet 2

Sheet 3

Sheet 4

Sheet 5

Install/Remove the Diffuser Case Assembly to/from the Build Stand

Install the No. 4 Bearing Scavenge Tube

Gasket Installation and Torque Sequence

V2500-A1: (Pre SBE 72-0016, Pre SBE 72-0166 and Pre SBE 72-0221) Install the No. 4 Bearing Sensing Tube and Airframe Manifold

V2500-A1: (Pre SBE 72-0016, Pre SBE 72-0221 and SBE 72-0166) Install the No. 4 Bearing Airframe Manifold

V2500-A1: (SBE 72-0016 and Pre SBE 72-0221 and Pre SBE 72-0166) and V2500-A5 (Pre SBE 72-0166) Install the No. 4 Bearing Sensing Tube and Airframe Manifold

V2500-A1: (SBE 72-0016, SBE 72-0166 and SBE 72-0221) and V2500-A5 (SBE 72-0166) Install the No. 4 Bearing Airframe Manifold

Install the No. 4 Bearing Compartment Cooling Tubes

Pre SBE 72-0221 V2500-A1: Install The High Pressure Turbine Cooling Air Tubes

SBE 72-0021 V2500-A1 and V2500-A5: Install the High Pressure Turbine Cooling Air Tubes

Install the Four Bolts and Washers into Diffuser Case Assembly

Pre SBE 72-0221 V2500-A1: Install the No. 4 Bearing Thrust Balance Tubes into the Diffuser Case

SBE 72-0221 V2500-A1 and V2500-A5: Install the No. 4 Bearing Thrust Balance Tube into the Diffuser Case

Install the No. 4 Bearing Front Compartment

Check the No. 4 Bearing Oil Pressure Tube and the Oil Scavenge Tube for Leaks

Install the No. 4 Bearing Pressure Tube Heatshields

Sheet 1

Sheet 2

Install the No. 4 Bearing Cooling Air Tubes Heatshields

Install the Outer Combustion Chamber

Install the Igniters

Sheet 1

Sheet 2

Sheet 3

Sheet 1

Sheet 2

Sheet 3

Sheet 4

Sheet 1

Sheet 2

Sheet 1

Sheet 2

Sheet 3

Sheet 4

Sheet 1

Sheet 2

Sheet 3

Sheet 4

Sheet 1

Sheet 2

Pre SBE 72-0143 and Pre SBE 72-0221 V2500-A1: Install the Outlet Guide Vane (OGV) and the Static Seal Assembly and the Heatshield

SBE 72-0143 and SBE 72-0221 V2500-A1 and V2500-A5: Install the Outlet Guide Vane (OGV) and the Static Seal Assembly

Install the fuel distribution valve front bracket

Sheet 1

Sheet 2

Sheet 3

Install the P3/T3 Sensor

Check the No. 4 Front Carbon Seal Bearing Compartment For Leaks

Requirements After Job Completion

Follow-On Conditions

NONE

Manufacturer Code:	03530
Enterprise Name:	AMERICAN GAS AND CHEMICAL CO LTD
BU Name:	AMERICAN GAS AND CHEMICAL CO LTD
Street:	220 PEGASUS AVE
City:	NORTHVALE
State:	NJ
Zip Code:	07647
Country:	USA
Phone Number:	1-201-767-7300, 1-800-526-1008
Fax Number:	1-201-767-1741
Internet:	www.amgas.com

Manufacturer Code:	0AM53
Enterprise Name:	IAE INTERNATIONAL AERO ENGINES AG
BU Name:	NULL
Building:	SUITE 400
Street:	628 HEBRON AVENUE
City:	GLASTONBURY
State:	CT
Zip Code:	06033
Country:	USA

Manufacturer Code:	24269
Enterprise Name:	SCHAEFER MACHINE CO., INC.
BU Name:	SCHAEFER MACHINE CO., INC.
Street:	200 COMMERCIAL DRIVE
City:	DEEP RIVER
State:	CT
Zip Code:	06417
Country:	USA
Phone Number:	1-860-526-4000
Fax Number:	1-860-526-4654
Internet:	www.schaeferco.com

Manufacturer Code:	34568
Enterprise Name:	TIODIZE CO., INC.
BU Name:	TIODIZE CO., INC.
Street:	5858 ENGINEER DRIVE
City:	HUNTINGTON BEACH
State:	CA
Zip Code:	92649
Country:	USA
Phone Number:	1-714-898-4377
Fax Number:	1-714-891-7467
Internet:	www.tiodize.com

Manufacturer Code:	56385
Enterprise Name:	ULTRACHEM INC
BU Name:	ULTRACHEM INC
Street:	900 CEDAR POINT BLVD
City:	NEWCASTLE
State:	DE
Zip Code:	19720
Country:	USA
Phone Number:	1-302-325-9880
Fax Number:	1-302-325-0335
Internet:	www.ultracheminc.com

Ambient Pressure of the Day (psia)	Vacuum Pressure (psia)
14.7	4.9
14.5	4.7
14.3	4.5
14.1	4.3
13.9	4.1
13.7	3.9
13.5	3.7
13.3	3.5
13.1	3.3

Manufacturer Code:	0AM53
Tool Number:	IAE 1P16004
Tool Name:	IAE 1P16004 Handling bracket

TASK 72-42-00-430-001 Diffuser And Combustion Group - Assemble The Diffuser And Combustion Group, Assembly-001

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Copyright

Applicability

Common Information

TASK 72-42-00-430-001 Diffuser And Combustion Group - Assemble The Diffuser And Combustion Group, Assembly-001

General

CAUTION

NOTE

NOTE

Preliminary Requirements

Pre-Conditions

Support Equipment

Consumables, Materials and Expendables

Spares

Safety Requirements

Procedure

SUBTASK 72-42-00-430-065 Assemble the Diffuser Case Assembly

SUBTASK 72-42-00-220-066 Reference the Fits and Clearances of the Static Seal Assembly and the Thrust Balance Tubes at Location 1400

SUBTASK 72-42-00-220-054 Reference the Fits and Clearances of the No. 4 Bearing Front Compartment at Location 2056

SUBTASK 72-42-00-220-055 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2062

SUBTASK 72-42-00-220-056 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2063

SUBTASK 72-42-00-220-057-A00 V2500-A1: Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2064 (Pre SBE 72-0221)

SUBTASK 72-42-00-220-057-B00 V2500-A1: Reference the Fits and Clearances of the Diffuser Case Rear Assembly at Location 2064 (SBE 72-0221)

SUBTASK 72-42-00-220-057-C00 V2500-A5: Reference the Fits and Clearances of the Diffuser Case Rear Assembly at Location 2064

SUBTASK 72-42-00-220-058 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2082

SUBTASK 72-42-00-220-059 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2086

SUBTASK 72-42-00-220-060 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2087

SUBTASK 72-42-00-220-061 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2088

SUBTASK 72-42-00-220-062 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2089

SUBTASK 72-42-00-220-069 P/N 2A3464, P/N 2A3465 and P/N 2A3466 Only: Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2089

NOTE

SUBTASK 72-42-00-220-070 P/N 2A3466 Transfer Tube Only: Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2090

NOTE

SUBTASK 72-42-00-220-063 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2090

SUBTASK 72-42-00-220-064 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2243

SUBTASK 72-42-00-220-065 Reference the Fits and Clearances of the Diffuser Case Assembly at Location 2244

SUBTASK 72-42-00-430-066 Put the Diffuser Case Assembly in to the Build Stand

CAUTION

SUBTASK 72-42-00-430-067 Install the No. 4 Bearing Scavenge Tube

SUBTASK 72-42-00-430-068-A00 V2500-A1: Install the No. 4 Bearing Airframe Manifold (72-42-20,03-240) (Pre SBE 72-0016, Pre SBE 72-0166 and Pre SBE 72-0221)

SUBTASK 72-42-00-430-068-B00 V2500-A1: Install the No. 4 Bearing Airframe Manifold (72-42-20,03-240) (Pre SBE 72-0016, SBE 72-0166 and Pre SBE 72-0221)

SUBTASK 72-42-00-430-068-C00 V2500-A1: Install the No. 4 Bearing Airframe Manifold (SBE 72-0016, Pre SBE 72-0166 and Pre SBE 72-0221)

SUBTASK 72-42-00-430-068-D00 V2500-A1: Install the No. 4 Bearing Airframe Manifold (SBE 72-0016, SBE 72-0166 and SBE 72-0221)

SUBTASK 72-42-00-430-068-E00 V2500-A5: Install the No. 4 Bearing Airframe Manifold (Pre SBE 72-0166)

SUBTASK 72-42-00-430-068-F00 V2500-A5: Install the No. 4 Bearing Airframe Manifold (SBE 72-0166)

SUBTASK 72-42-00-430-069-A00 V2500-A1: Install the Turbine Cooling Air Duct Sensing Tube (Pre SBE 72-0016, Pre SBE 72-0166 and Pre SBE 72-0221)

SUBTASK 72-42-00-430-069-B00 V2500-A1: Install the Turbine Cooling Air Duct Sensing Tube (SBE 72-0016 and Pre SBE 72-0166)

SUBTASK 72-42-00-430-069-C00 V2500-A5: Install the Turbine Cooling Air Duct Sensing Tube (Pre SBE 72-0166)

SUBTASK 72-42-00-430-070 Install the No. 4 Bearing Inner Cooling Tube and the Sealing Sleeves

SUBTASK 72-42-00-430-071 Install the No. 4 Bearing Outer Cooling Tube

SUBTASK 72-42-00-430-072-A00 V2500-A1: Install the Transfer Tube and the Adapter in the Diffuser Case (Pre SBE 72-0221)

SUBTASK 72-42-00-430-072-B00 V2500-A1: Install the Transfer Tube and the Adapter in the Diffuser Case (SBE 72-0221)

SUBTASK 72-42-00-430-072-C00 V2500-A5: Install the Transfer Tube and the Adapter in the Diffuser Case

SUBTASK 72-42-00-430-057-A00 V2500-A1: Install the Thrust Balance Vent Tubes in the Diffuser Case (Pre SBE 72-0221)

SUBTASK 72-42-00-430-057-B00 V2500-A1: Install the Thrust Balance Vent Tubes in the Diffuser Case (SBE 72-0221)

SUBTASK 72-42-00-430-057-C00 V2500-A5: Install the Thrust Balance Vent Tubes in the Diffuser Case

SUBTASK 72-42-00-430-051 Install the No. 4 Bearing Front Compartment to the Diffuser Case Assembly

CAUTION

SUBTASK 72-42-00-430-052 Attach the Tubes to the No. 4 Bearing Front Compartment

CAUTION

CAUTION

SUBTASK 72-42-00-790-051 Do a Check of the No. 4 Bearing Oil Scavenge and Oil Pressure Tubes for Leaks

SUBTASK 72-42-00-720-053 Do a Check of the No. 4 Front Carbon Seal Bearing Compartment for Leaks

NOTE

CAUTION

SUBTASK 72-42-00-720-054 Air Flow Check the No. 4 Bearing Compartment Oiling System

SUBTASK 72-42-00-430-053 Safety the Turbine Cooling Air Duct (TOBI Duct) Sensing Tube (Pre SBE 72-0166)

CAUTION

SUBTASK 72-42-00-430-054 Safety the No. 4 Bearing Airframe Tube and Manifold

SUBTASK 72-42-00-430-056-A00 Install the Heatshields for the Tubes in the No. 4 Bearing Compartment (Pre SBE 72-0004, SBE 72-0087 and Pre SBE 72-012)

SUBTASK 72-42-00-430-056-B00 V2500-A1: Install the Heatshields for the Tubes in the No. 4 Bearing Compartment (SBE 72-0004 and SBE 72-0120)

SUBTASK 72-42-00-430-056-C00 V2500-A5: Install the Heatshields for the Tubes in the No. 4 Bearing Compartment

SUBTASK 72-42-00-430-058 Install the Outer Combustion Chamber

SUBTASK 72-42-00-430-059 Install the Five Doweled End Bolts to Attach the Combustion Chamber to the Diffuser Case

CAUTION

SUBTASK 72-42-00-430-073-A00 V2500-A1: Install the Five Plugs (72-42-10,01-020) and Gaskets (72-42-10,01-010) (Pre SBE 72-0221)

SUBTASK 72-42-00-430-073-B00 V2500-A1: Install the Six Plugs and Gaskets (SBE 72-0221)

SUBTASK 72-42-00-430-073-C00 V2500-A5: Install the Six Plugs and Gaskets

SUBTASK 72-42-00-430-002 Install the Four Bolts (72-40-00, 06-015/050) and Washers (72-40-00, 06-020/060)