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 72-00-43-420-001 No. 4 Bearing And Rear Compartment Assembly - Install The No. 4 Bearing And Rear Compartment Parts, Installation-001
General
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 this procedure.
Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-077 APPROVED ENGINE OILS, 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.
Transportation covers/blanks must be removed immediately before the installation of the components.
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| IAE 1F10018 Hydraulic hand pump | 0AM53 | IAE 1F10018 | 1 | |
| IAE 1F10026 Hydraulic hand pump | 0AM53 | IAE 1F10026 | 1 | |
| IAE 1P16035 Hand wrench | 0AM53 | IAE 1P16035 | 1 | |
| IAE 1P16036 Pusher/puller | 0AM53 | IAE 1P16036 | 1 | |
| IAE 1P16041 Heater | 0AM53 | IAE 1P16041 | 1 | (superseded by IAE 1P16469) |
| IAE 1P16073 Jaw set | 0AM53 | IAE 1P16073 | 1 | |
| IAE 1P16088 Leak check adapter | 0AM53 | IAE 1P16088 | 1 | |
| IAE 1P16089 Leak check cap | 0AM53 | IAE 1P16089 | 1 | |
| IAE 1P16104 Cover | 0AM53 | IAE 1P16104 | 1 | |
| IAE 1P16123 Drift | 0AM53 | IAE 1P16123 | 1 | (superseded by IAE 1P16470) |
| IAE 1P16124 Fixture | 0AM53 | IAE 1P16124 | 1 | |
| IAE 1P16145 Crimp fixture | 0AM53 | IAE 1P16145 | 1 | |
| IAE 1P16469 Heater | 0AM53 | IAE 1P16469 | 1 | (supersedes IAE 1P16041) |
| IAE 1P16470 Drift | 0AM53 | IAE 1P16470 | 1 | (supersedes IAE 1P16123) |
| IAE 1P17511 cover | 0AM53 | IAE 1P17511 | 1 | |
| IAE 6F10027 Heater control unit | 0AM53 | IAE 6F10027 | 1 | |
| IAE 6F10030 Vacuum test cart | 0AM53 | IAE 6F10030 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| DELETED | LOCAL | DELETED | ||
| CoMat 01-573 WAX BLEND, PARAFFIN | 24269 | CoMat 01-573 | ||
| CoMat 10-077 APPROVED ENGINE OILS | X333X | CoMat 10-077 | ||
| CoMat 10-129 ANTI-SEIZE PASTE | 34568 | CoMat 10-129 |
Spares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Gasket | 1 | |||
| Keywasher | 1 | |||
| Keywasher | 7 | |||
| Keywasher | 8 |
Safety Requirements
NONEProcedure
Remove the cover from the No. 4 bearing support ENGINE-NO.4 BEARING SUPPORT ASSEMBLY (72-42-31, 01-010).
Install the IAE 1P16469 Heater or IAE 1P16041 Heater 1 off to the No. 4 bearing support. Attach the heater to the IAE 6F10027 Heater control unit 1 off and heat the support to a maximum of 200 deg F (93 deg C).
Install the IAE 1P16073 Jaw set 1 off on to the IAE 1P16036 Pusher/puller 1 off with the shoulder screws and the springs. The springs are put between the jaws and the pusher to load the jaws in.
NOTE
The No. 4 bearing inner and outer race and rollers are a serialized set that must be kept together as a set in each engine build.Install the No. 4 bearing outer race ENGINE-NO.4 BEARING (72-43-13, 01-010) on to the jaws on the pusher. Expand the jaws out against the bearing outer race with the aluminum ring.
Attach the IAE 1P16036 Pusher/puller 1 off IAE 1F10018 Hydraulic hand pump 1 off to the hydraulic cylinder. Actuate the pump to install the No. 4 bearing outer race.
When the temperature of the parts has cooled sufficiently, install the IAE 1P16104 Cover 1 off to the No. 4 bearing support.
SUBTASK 72-00-43-420-051 Install the No. 4 Bearing Outer Race (72-43-13,01-010)
Refer to Figure.
Reference the clearance at location 2226. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(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 2226
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing rear seal seat ENGINE-NO.4 BEARING REAR SEAT SEAL (72-43-14, 01-020), bore
HPC drive turbine shaft journal
5.107
Clear
5.108
0.003
No. 4 bearing rear seal seat bore
5.111
0.006
5.113
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 2226
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing rear seal seat ENGINE-NO.4 BEARING REAR SEAT SEAL (72-43-14, 01-020), bore
HPC drive turbine shaft journal
129.718
Clear
129.743
0.077
No. 4 bearing rear seal seat bore
129.820
0.152
129.870
Clear
SUBTASK 72-00-43-220-051-A00 V2500-A1 Reference the Fits and Clearances of the No. 4 Bearing and Rear Compartment Parts at Location 2226 (Pre SBE 72-0111)
Refer to Figure.
SBE 72-0111: New stage 1 HPT air seal
Reference the clearance at location 2226. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(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 2226
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing rear seal seat ENGINE-NO.4 BEARING REAR SEAT SEAL (72-43-14, 01-020), bore
HPC drive turbine shaft journal
5.107
Clear
5.108
0.003
No. 4 bearing rear seal seat bore
5.111
0.006
5.113
Clear
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 2226
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing rear seal seat ENGINE-NO.4 BEARING REAR SEAT SEAL (72-43-14, 01-020), bore
HPC drive turbine shaft journal
129.718
Clear
129.743
0.077
No. 4 bearing rear seal seat bore
129.820
0.152
129.870
Clear
SUBTASK 72-00-43-220-051-B00 V2500-A1 Reference the Fits and Clearances of the No. 4 Bearing and Rear Compartment Parts at Location 2226 (SBE 72-0111)
Refer to Figure.
Reference the clearance at location 2226. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(INSPECTION-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 2226
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing rear seal seat ENGINE-NO.4 BEARING REAR SEAT SEAL (72-43-14, 01-020), bore
HPC drive turbine shaft journal
5.107
Clear
5.108
0.003
No. 4 bearing rear seal seat bore
5.111
0.006
5.113
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 2226
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No.4 bearing rear seal seat ENGINE-NO.4 BEARING REAR SEAT SEAL (72-43-14, 01-020), bore
HPC drive turbine shaft journal
129.718
Clear
129.743
0.077
No.4 bearing rear seal seat
129.820
0.152
bore
129.870
Clear
SUBTASK 72-00-43-220-051-C00 V2500-A5 Reference the Fits and Clearances of the No. 4 Bearing and Rear Compartment Parts at Location 2226
Refer to Figure.
Reference the clearance at location 2227. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION-000) and TASK 72-43-14-200-000.(INSPECTION-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 2227
No. 4 bearing ENGINE-NO.4 BEARING (72-43-13, 01-010), bore
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing bore
5.1181
Intf
5.1188
Intf
5.1175
0.0003
5.1175
0.0003
HPC drive turbine shaft journal
5.1191
0.0016
5.1191
0.0016
5.1184
Intf
5.1184
Intf
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 THEN
LOCATION 2227
No. 4 bearing ENGINE-NO.4 BEARING (72-43-13, 01-010), bore
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing bore
129.9997
Intf
130.0175
Intf
129.9845
0.008
129.9845
0.008
HPC drive turbine shaft journal
130.0251
0.040
130.0251
0.040
130.0074
Intf
130.0074
Intf
SUBTASK 72-00-43-220-052-A00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2227 (Pre SBE 72-0111)
Refer to Figure.
Reference the interference at location 2227. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(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 2227
No. 4 bearing ENGINE-NO.4 BEARING (72-43-13, 01-010), bore
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing bore
5.1181
Intf
5.1188
Intf
5.1175
0.0003
5.1175
0.0003
HPC drive turbine shaft journal
5.1191
0.0016
5.1191
0.0016
5.1184
Intf
5.1184
Intf
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 2227
No. 4 bearing ENGINE-NO.4 BEARING (72-43-13, 01-010), bore
HPC drive turbine shaft HPC Rear Shaft And Heatshield Assembly (72-41-13, 01-850), journal
No. 4 bearing bore
129.9997
Intf
130.0175
Intf
129.9845
0,008
129.9845
0.008
HPC drive turbine shaft journal
130.0251
0,040
130.0251
0.040
130.0074
Intf
130.0074
Intf
SUBTASK 72-00-43-220-052-B00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2227 (SBE 72-0111)
SBE 72-0111: New stage 1 HPT air seal
Refer to Figure
Reference the interference at location 2227. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION-000) and TASK 72-43-14-200-000.(INSPECTION-000).
Table 11. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2227
No.4 bearing ENGINE-NO.4 BEARING(72-43-13, 01-010),
bore
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing bore
5.1181
Intf
5.1188
Intf
5.1175
0.0003
5.1175
0.0003
HPC drive turbine shaft
5.1191
0.0016
5.1191
0.0016
journal
5.1184
Intf
5.1184
Intf
Table 12. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2227
No.4 bearing ENGINE-NO.4 BEARING(72-43-13, 01-010),
bore
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing bore
129.9997
Intf
130.0175
Intf
129.9845
0.008
129.9845
0.008
HPC drive turbine shaft
130.0251
0.040
130.0251
0.040
journal
130.0074
Intf
130.0074
Intf
SUBTASK 72-00-43-220-052-C00 V2500-A5 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2227
Refer to Figure
Reference the clearance at location 2228. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(INSPECTION/CHECK-000).
Table 13. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2228
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13,01-850), journal
No.4 bearing seal spacer
ENGINE-NO.4 BEARING SEAL SPACER(72-43-12,01-010)
HPC drive turbine shaft journal
5.127
Clear
5.129
0.002
No.4 bearing seal spacer
5.131
0.006
5.133
Clear
Table 14. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2228
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13,01-850), journal
No.4 bearing seal spacer
ENGINE-NO.4 BEARING SEAL SPACER(72-43-12,01-010)
HPC drive turbine shaft journal
130.226
Clear
130.276
0.051
No.4 bearing seal spacer
130.328
0.152
130.378
Clear
SUBTASK 72-00-43-220-053-A00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2228 (Pre SBE 72-0111)
Refer to Figure
Reference the clearance at location 2228. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(INSPECTION/CHECK-000).
Table 15. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2228
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing seal spacer
ENGINE-NO.4 BEARING SEAL SPACER(72-43-12, 01-010)
HPC drive turbine shaft journal
5.127
Clear
5.129
0.002
No.4 bearing seal spacer
5.131
0.006
5.133
Clear
Table 16. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2228
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing seal spacer
ENGINE-NO.4 BEARING SEAL SPACER(72-43-12, 01-010)
HPC drive turbine shaft journal
130.226
Clear
130.276
0.051
No.4 bearing seal spacer
130.328
0.152
130.378
Clear
SUBTASK 72-00-43-220-053-B00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2228 (SBE 72-0111)
SBE 72-0111: New stage 1 HPT air seal
Refer to Figure
Reference the clearance at location 2228. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(INSPECTION/CHECK-000).
Table 17. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2228
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing seal spacer
ENGINE-NO.4 BEARING SEAL SPACER(72-43-12, 01-010)
HPC drive turbine shaft journal
5.127
Clear
5.129
0.002
No.4 bearing seal spacer
5.131
0.006
5.133
Clear
Table 18. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2228
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing seal spacer
ENGINE-NO.4 BEARING SEAL SPACER(72-43-12, 01-010)
HPC drive turbine shaft journal
130.226
Clear
130.276
0.051
No.4 bearing seal spacer
130.328
0.152
130.378
Clear
SUBTASK 72-00-43-220-053-C00 V2500-A5 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2228
Refer to Figure
Reference the clearance at location 2229. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(INSPECTION/CHECK-000).
Table 19. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2229
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly (72-41-13,01-850), journal
No.4 bearing front seal seat
ENGINE-NO.4 BEARING FRONT SEAT SEAL(72-43-11,01-010), bore
HPC drive turbine shaft journal
5.127
Clear
5.129
0.002
No.4 bearing front seal seat
5.131
0.006
bore
5.133
Clear
Table 20. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2229
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13,01-850), journal
No.4 bearing front seal seat
ENGINE-NO.4 BEARING FRONT SEAT SEAL(72-43-11,01-010), bore
HPC drive turbine shaft journal
130.226
Clear
130.276
0.051
No.4 bearing front seal seat
130.328
0.152
bore
130.378
Clear
SUBTASK 72-00-43-220-054-A00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2229 (Pre SBE 72-0111)
Refer to Figure
SBE 72-0111: New stage 1 HPT air seal
Reference the clearance at location 2229. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(INSPECTION/CHECK-000).
Table 21. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2229
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing front seal seat
ENGINE-NO.4 BEARING FRONT SEAT SEAL(72-43-11, 01-010), bore
HPC drive turbine shaft journal
5.127
Clear
5.129
0.002
No.4 bearing front seal seat
5.131
0.006
bore
5.133
Clear
Table 22. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2229
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing front seal seat
ENGINE-NO.4 BEARING FRONT SEAT SEAL(72-43-11, 01-010), bore
HPC drive turbine shaft journal
130.226
Clear
130.276
0.051
No.4 bearing front seal seat
130.328
0.152
bore
130.378
Clear
SUBTASK 72-00-43-220-054-B00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2229 (SBE 72-0111)
Refer to Figure
Reference the clearance at location 2229. If required, use the data written as a note in TASK 72-41-13-200-000 (INSPECTION/CHECK-000) and TASK 72-43-14-200-000.(INSPECTION/CHECK-000).
Table 23. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2229
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing front seal seat
ENGINE-NO.4 BEARING FRONT SEAT SEAL(72-43-11, 01-010), bore
HPC drive turbine shaft journal
5.127
Clear
5.129
0.002
No.4 bearing front seal seat
5.131
0.006
bore
5.133
Clear
Table 24. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2229
HPC drive turbine shaft
HPC Rear Shaft And Heatshield Assembly(72-41-13, 01-850), journal
No.4 bearing front seal seat
ENGINE-NO.4 BEARING FRONT SEAT SEAL(72-43-11, 01-010), bore
HPC drive turbine shaft journal
130.226
Clear
130.276
0.051
No.4 bearing front seal seat
130.328
0.152
bore
130.378
Clear
SUBTASK 72-00-43-220-054-C00 V2500-A5 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2229
Refer to Figure
Reference the interference at location 2233. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 25. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2233
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31,01-010),
location diameter
No.4 bearing rear cooling duct
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-010),
location diameter
No.4 bearing support assembly
12.752
Intf
12.754
Intf
location diameter
12.748
0.002
12.748
0.000
No.4 bearing rear cooling duct
12.758
0.010
12.758
0.010
location diameter
12.754
Intf
12.754
Intf
Table 26. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2233
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31,01-010),
location diameter
No.4 bearing rear cooling duct
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-010),
location diameter
No.4 bearing support assembly
323.900
Intf
323.952
Intf
location diameter
323.00
0.051
323.800
0.000
No.4 bearing rear cooling duct
324.053
0.254
324.053
0.254
location diameter
323.952
Intf
323.952
Intf
SUBTASK 72-00-43-220-055-A00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2233 (Pre SBE 72-0111)
Refer to Figure
Reference the interference at location 2233. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 27. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2233
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010),
location diameter
No.4 bearing rear cooling duct
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-010),
location diameter
No.4 bearing support assembly
12.752
Intf
12.754
Intf
location diameter
12.748
0.002
12.748
0.000
No.4 bearing rear cooling duct
12.758
0.010
12.758
0.010
location diameter
12.754
Intf
12.754
Intf
Table 28. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2233
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010),
location diameter
No.4 bearing rear cooling duct
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-010),
location diameter
No.4 bearing support assembly
323.900
Intf
323.952
Intf
location diameter
323.800
0.051
323.800
0.000
No.4 bearing rear cooling duct
324.053
0.254
324.053
0.254
location diameter
323.952
Intf
323.952
Intf
SUBTASK 72-00-43-220-055-B00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2233 (SBE 72-0111)
SBE 72-0111: New stage 1 HPT air seal
Refer to Figure
Reference the interference at location 2233. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 29. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2233
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010),
location diameter
No.4 bearing rear cooling duct
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-010),
location diameter
No.4 bearing support assembly
12.752
Intf
12.754
Intf
location diameter
12.748
0.002
12.748
0.000
No.4 bearing rear cooling duct
12.758
0.010
12.758
0.010
location diameter
12.754
Intf
12.754
Intf
Table 30. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2233
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010),
location diameter
No.4 bearing rear cooling duct
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-010),
location diameter
No.4 bearing support assembly
323.900
Intf
323.952
Intf
location diameter
323.800
0.051
323.800
0.000
No.4 bearing rear cooling duct
324.053
0.254
324.053
0.025
location diameter
323.952
Intf
323.952
Intf
SUBTASK 72-00-43-220-055-C00 V2500-A5 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2233
Refer to Figure
Reference the interference at location 2234. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 31. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2234
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31,01-010),
location diameter
No.4 bearing heatshield
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-080),
location diameter
No.4 bearing support assembly
13.002
Intf
13.003
Intf
location diameter
12.998
0.002
12.997
0.002
No.4 bearing heatshield
13.008
0.010
13.008
0.010
location diameter
13.004
Intf
13.004
Intf
Table 32. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2234
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31,01-010),
location diameter
No.4 bearing heatshield
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-080),
location diameter
No.4 bearing support assembly
330.250
Intf
330.276
Intf
location diameter
330.150
0.051
330.124
0.051
No.4 bearing heatshield
330.403
0.254
330.403
0.254
location diameter
330.302
Intf
330.302
Intf
SUBTASK 72-00-43-220-056-A00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2234 (Pre SBE 72-0111)
Refer to Figure
Reference the interference at location 2234. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 33. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2234
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010),
location diameter
No.4 bearing heatshield
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-080),
location diameter
No.4 bearing support assembly
13.002
Intf
13.003
Intf
location diameter
12.998
0.002
12.997
0.002
No.4 bearing heatshield
13.008
0.010
13.008
0.010
location diameter
13.004
Intf
13.004
Intf
Table 34. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2234
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010),
location diameter
No.4 bearing heatshield
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-080),
location diameter
No.4 bearing support assembly
330.250
Intf
330.276
Intf
location diameter
330.150
0.051
330.124
0.051
No.4 bearing heatshield
330.403
0.254
330.403
0.254
location diameter
330.302
Intf
330.302
Intf
SUBTASK 72-00-43-220-056-B00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2234 (SBE 72-0111)
SBE 72-0111: New stage 1 HPT air seal
Refer to Figure
Reference the interference at location 2234. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 35. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2234
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010),
location diameter
No.4 bearing heatshield
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-080),
location diameter
No.4 bearing support assembly
13.002
Intf
13.003
Intf
location diameter
12.998
0.002
12.997
0.002
No.4 bearing support assembly
13.008
0.010
13.008
0.010
location diameter
13.004
Intf
13.004
Intf
Table 36. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2234
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010),
location diameter
No.4 bearing heatshield
assembly No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-080),
location diameter
No.4 bearing support assembly
330.250
Intf
330.276
Intf
location diameter
330.150
0.051
330.124
0.051
No.4 bearing heatshield
330.403
0.,254
330.403
0.254
location diameter
330.302
Intf
330.302
Intf
SUBTASK 72-00-43-220-056-C00 V2500-A5 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2234
Refer to Figure
Reference the interference at location 2235. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 37. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2235
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20,01-060), location
diameter
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31,01-010),
location diameter
No.4 bearing support seal ring
10.892
Intf
10.892
Intf
holder location diameter
10.888
0.000
10.888
0.000
No.4 bearing support assembly
10.896
0.008
10.897
0.009
location diameter
10.892
Intf
10.892
Intf
Table 38. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2235
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20,01-060), location
diameter
No.4 bearing support
assembly ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31,01-010),
location diameter
No.4 bearing seal ring holder
276.657
Intf
276.657
Intf
location diameter
276.556
0.000
276.556
0.000
No.4 bearing support assembly
276.758
0.203
276.784
0.228
location diameter
276.657
Intf
276.657
Intf
SUBTASK 72-00-43-220-057-A00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2235 (Pre SBE 72-0111)
Refer to Figure
Reference the interference at location 2235. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 39. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2235
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-060), location
diameter
No.4 bearing support assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010), location
diameter
No.4 bearing seal ring holder
10.892
Intf
10.892
Intf
location diameter
10.888
0.000
10.888
0.000
No.4 bearing support assembly
10.896
0.008
10.897
0.009
location diameter
10.892
Intf
10.892
Intf
Table 40. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2235
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-060), location
diameter
No.4 bearing support assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010), location
diameter
No.4 bearing seal ring holder
276.657
Intf
276.657
Intf
location diameter
276.556
0.000
276.556
0.000
No.4 bearing support assembly
276.758
0.203
276.784
0.228
location diameter
276.657
Intf
276.657
Intf
SUBTASK 72-00-43-220-057-B00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2235 (SBE 72-0111)
SBE 72-0111: New stage 1 HPT air seal
Refer to Figure
Reference the interference at location 2235. If required, use the data written as a note in TASK 72-42-31-200-000(INSPECTION/CHECK-000) and TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 41. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2235
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-060), location
diameter
No.4 bearing support assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010), location
diameter
No.4 bearing seal ring holder
10.892
Intf
10.892
Intf
location diameter
10.888
0.000
10.888
0.000
No.4 bearing support assembly
10.896
0.008
10.897
0.009
location diameter
10.892
Intf
10.892
Intf
Table 42. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2235
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-060), location
diameter
No.4 bearing support assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010), location
diameter
No.4 bearing seal ring holder
276.657
Intf
276.657
Intf
location diameter
276.556
0.000
276.556
0.000
No.4 bearing support assembly
276.758
0.203
276.784
0.228
location diameter
276.657
Intf
276.657
Intf
SUBTASK 72-00-43-220-057-C00 V2500-A5 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2235
Refer to Figure
Reference the clearence at location 2236. If required, use the data written as a note in TASK 72-43-30-200-000(INSPECTION/CHECK-000).
Table 43. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2236
No.4 bearing heatshield
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-080), location
diameter
No.4 bearing rear cooling duct
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-010), location
diameter
No.4 bearing heatshield
6.185
Clear
location diameter
6.195
0.010
No.4 bearing cooling duct
6.205
0.030
location diameter
6.215
Clear
Table 44. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2236
No.4 bearing heatshield
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-080), location
diameter
No.4 bearing rear cooling duct
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-010), location
diameter
No.4 bearing heatshield
157.10
Clear
location diameter
157.35
0.25
No.4 bearing cooling duct
157.61
0.76
location diameter
157.86
Clear
SUBTASK 72-00-43-220-058 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2236 (Pre SBE 72-0111)
Refer to Figure
Reference the clearance/interference at location 2240. If required, use the data written as a note in TASK 72-43-30-200-000(INSPECTION/CHECK-000) and TASK 72-43-20-200-000(INSPECTION/CHECK-000).
Table 45. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2240
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20,01-020), location
diameter
No.4 bearing rear cooling duct
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-010), location
diameter
No.4 bearing seal ring holder
6.055
Clear
location diameter
6.051
0.002
No.4 bearing cooling duct
6.057
0.006
location diameter
6.053
Intf
Table 46. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2240
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20,01-020), location
diameter
No.4 bearing rear cooling duct
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-010), location
diameter
No.4 bearing seal ring holder
153.797
Clear
location diameter
153.696
0.051
No.4 bearing cooling duct
153.847
0.152
location diameter
153.747
Intf
SUBTASK 72-00-43-220-059-A00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2240 (Pre SBE 72-0111)
Refer to Figure
Reference the clearance/interference at location 2240. If required, use the data written as a note in TASK 72-43-30-200-000(INSPECTION/CHECK-000) and TASK 72-43-20-200-000 (INSPECTION/CHECK-000).
Table 47. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2240
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-020), location
diameter
No.4 bearing rear cooling duct
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-010), location
diameter
No.4 bearing seal ring holder
6.055
Clear
location diameter
6.051
0.002
No.4 bearing cooling duct
6.057
0.006
location diameter
6.053
Intf
Table 48. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2240
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-020), location
diameter
No.4 bearing rear cooling duct
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-010), location
diameter
No.4 bearing seal ring holder
153.797
Clear
location diameter
153.696
0.051
No.4 bearing cooling duct
153.847
0.152
location diameter
153.747
Intf
SUBTASK 72-00-43-220-059-B00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2240 (SBE 72-0111)
SBE 72-0111: New stage 1 HPT air seal
Refer to Figure
Reference the clearance/interference at location 2240. If required, use the data written as a note in TASK 72-43-30-200-000(INSPECTION/CHECK-000) and TASK 72-43-20-200-000 (INSPECTION/CHECK-000).
Table 49. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2240
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-020), location
diameter
No.4 bearing rear cooling duct
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-010), location
diameter
No.4 bearing seal ring holder
6.055
Clear
location diameter
6.051
0.002
No.4 bearing cooling duct
6.057
0.006
location diameter
6.053
Intf
Table 50. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2240
No.4 bearing seal ring holder
No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-020), location
diameter
No.4 bearing rear cooling duct
No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30, 01-010), location
diameter
No.4 bearing seal ring holder
153.797
Clear
location diameter
153.696
0.051
No.4 bearing cooling duct
153.847
0.152
location diameter
153.747
Intf
SUBTASK 72-00-43-220-059-C00 V2500-A5 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2240
Refer to Figure
Reference the interference at location 2264. If required use the data written as a note in TASK 72-43-30-200-000(INSPECTION/CHECK-000) and TASK 72-43-20-200-000 (INSPECTION/CHECK-000).
Table 51. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2264
No.4 bearing support assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31,01-010), location
diameter
No.4 bearing ENGINE-NO.4 BEARING(72-43-13,01-010),
location diameter
No.4 bearing support assembly
7.5532
Intf
7.5532
Intf
location diameter
7.5522
0.0018
7.5522
0.0018
No.4 bearing location diameter
7.556
0.0038
7.557
0.0038
7.555
Intf
7.555
Intf
Table 52. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2264
No.4 bearing support assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31,01-010), location
diameter
No.4 bearing ENGINE-NO.4 BEARING(72-43-13,01-010),
location diameter
No.4 bearing support assembly
191.851
Intf
191.851
Intf
location diameter
191.826
0.046
191.826
0.046
No.4 bearing location diameter
191.922
0.096
191.947
0.096
191.897
Intf
191.897
Intf
SUBTASK 72-00-43-220-060-A00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2264 (Pre SBE 72-0111)
Refer to Figure
Reference the interference at location 2264. If required, use the data written as a note in TASK 72-42-31-200-000 (INSPECTION/CHECK-000) and TASK 72-43-13-200-000 (INSPECTION/CHECK-000).
Table 53. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2264
No.4 bearing seal support
assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010), location
diameter
No.4 bearing ENGINE-NO.4 BEARING(72-43-13, 01-010),
location diameter
No.4 bearing support assembly
7.5532
Intf
7.5532
Intf
location diameter
7.5522
0.0018
7.5522
0.0018
No.4 bearing location diameter
7.556
0.0038
7.557
0.0038
7.555
Intf
7.555
Intf
Table 54. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2264
No.4 bearing seal support assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010), location
diameter
No.4 bearing ENGINE-NO.4 BEARING(72-43-13, 01-010),
location diameter
No.4 bearing support assembly
191.851
Intf
191.851
Intf
location diameter
191.826
0.046
191.826
0.046
No.4 bearing location diameter
191.922
0.096
191.947
0.096
191.897
Intf
191.897
Intf
SUBTASK 72-00-43-220-060-B00 V2500-A1 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2264 (SBE 72-0111)
SBE 72-0111: New stage 1 HPT air seal
Refer to Figure
Reference the interference at location 2264. If required, use the data written as a note in TASK 72-42-31-200-000 (INSPECTION/CHECK-000) and TASK 72-43-13-200-000 (INSPECTION/CHECK-000).
Table 55. Fits and Clearances (all dimensions are in inches) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2264
No.4 bearing seal support assembly
ENGINE-NO.4 BEARING SUPPORT ASSEMBLY(72-42-31, 01-010), location
diameter
No.4 bearing ENGINE-NO.4 BEARING(72-43-13, 01-010),
location diameter
No.4 bearing support assembly
7.5532
Intf
7.5532
Intf
location diameter
7.5522
0.0018
7.5522
0.0018
No.4 bearing location diameter
7.556
0.0038
7.557
0.0038
7.555
Intf
7.555
Intf
Table 56. Fits and Clearances (all dimensions are in millimeters) NEW PART WORN PART
DIMENSIONS DIMENSIONS REJECT IF
PART IDENT Size Clearance (Non-select) MORE THAN
LOCATION 2264
No.4 bearing seal support assembly
(72-42-31, 01-010, location
diameter
No.4 bearing ENGINE-NO.4 BEARING(72-43-13, 01-010),
location diameter
No.4 bearing support assembly
191.851
Intf
191.851
Intf
location diameter
191.826
0.046
191.826
0.046
No.4 bearing location diameter
191.922
0.096
191.947
0.096
191.897
Intf
191.897
Intf
SUBTASK 72-00-43-220-060-C00 V2500-A5 Reference the Fits and Clearances of the No.4 Bearing and Rear Compartment Parts at Location 2264
Install the No.4 bearing keywasher ENGINE-NO.4 BEARING LOCK AND NUT(72-42-32,01-010) to the support with the tabs on the keywasher in the slots on the support.
Install the No.4 bearing outer race retaining nut ENGINE-NO.4 BEARING LOCK AND NUT(72-42-32,01-020) to the No.4 bearing support.

CAUTION
WHEN USING THE IAE 1P16035 Hand wrench THE ACTUAL TORQUE WRENCH READING WILL BE LESS THAN THAT GIVEN BELOW. SEE THE STANDARD PRACTICES MANUAL.Put the IAE 1P16035 Hand wrench 1 off in place on the nut and, with a standard torque wrench, torque the nut to 1900 to 2100 lbfin (214.671 to 237.268 Nm). Loosen the nut to 0 lbfin (0 Nm) and then torque to 1900 to 2100 lbfin (214.671 to 237.268 Nm) again. Remove the wrench from the nut.
NOTE
A gap is permitted between the fixture ring and the support outer flange.Lift the IAE 1P16145 Crimp fixture 1 off with a hoist and position over the assembly. Look to see if the jaws are rotated away from the base stop. Look to see if the locator has been retracted. Lower the fixture to the No.4 bearing support. Hold the fixture to the support with the three cap screws and washers. Tighten by hand only.
Attach the IAE 1F10026 Hydraulic hand pump 1 off to the fixture and actuate to crimp the keywasher. Hydraulic pressure setting should be 3000 psi (20684.3 kPa) to crimp the keywasher in eight places.
SUBTASK 72-00-43-420-052 Install the No. 4 Bearing Outer Race Retaining Nut
Refer to Figure
Install the No.4 bearing front seal seat ENGINE-NO.4 BEARING FRONT SEAT SEAL(72-43-11,01-010) on to the HP compressor rear hub with the ID puller groove up. Seal seat must touch the shoulder on the HP compressor hub.
Install the No.4 bearing seal spacer ENGINE-NO.4 BEARING SEAL SPACER(72-43-12,01-010) (with the smooth OD down) on to the HP compressor rear hub. Spacer must touch the front seal seat.
SUBTASK 72-00-43-420-053 Install the No. 4 Bearing Front Seal Seat and the No.4 Bearing Seal Spacer
Refer to Figure.

CAUTION
NEVER LET THE BEARINGS TOUCH THE BOTTOM OF THE HOT OIL TANK. A HEAVY SCREEN OR SOME RODS ATTACHED 3 INCHES (76 MM) ABOVE THE BOTTOM OF THE TANK WILL KEEP HOT OIL ON ALL SIDES OF THE BEARING.IF YOU USE AN INDUCTION HEATER FOLLOW THE MANUFACTURERS INSTRUCTIONS. DO NOT LET THE BEARING TEMPERATURE GET MORE THAN 250 DEG F (121 DEG C).NOTE
The No.4 bearing inner and outer race and rollers are a serialized set that must be kept together as a set in each engine build.Increase the temperature of the No.4 bearing inner race and rollers ENGINE-NO.4 BEARING(72-43-13,01-010) to 250 deg F (121 deg C) in a hot oil tank for 20 minutes or use an induction heater.

CAUTION
SLOWLY ROTATE THE HP COMPRESSOR DURING THE INSTALLATION OF THE INNER RACE TO PREVENT DAMAGE TO THE BEARING.Remove the bearing inner race and rollers from the hot oil tank or the heater with protective gloves. Install the inner race on to the HP compressor rear hub with the puller groove rearward (upward) and use the IAE 1P16470 Drift 1off to install the inner race against the spacer. Remove the drift.
SUBTASK 72-00-43-420-054 Install the No. 4 Bearing Inner Race and Rollers
Put the No.4 bearing rear seal seat ENGINE-NO.4 BEARING REAR SEAT SEAL(72-43-14,01-020) on the work bench with the tapered side down.
Install the seal ENGINE-NO.4 BEARING REAR SEAT SEAL(72-43-14,01-010) to the ID groove on the rear seal seat.
Install the ring portion of the IAE 1P16124 Fixture 1off to the rear seal seat. Secure in place with the three clamps and bolts. Tighten by hand.
Install the rear seal seat (with fixture attached) on to the HP compressor hub. Install the IAE 1P16470 Drift 1 off on to the rear HP compressor hub to contact the fixture and tap with a mallet until the rear seal seat contacts the bearing inner race. Remove the drift. Release the three clamps and remove the fixture from the rear seal seat.
SUBTASK 72-00-43-420-055Install the No.4 Bearing Rear Seal Seat and the Seal
Install No. 4 Bearing Rear Face Seal Assembly (72-43-20, 01-010) the gasket 1 off to the No.4 bearing support ENGINE-NO.4 BEARING SUPPORT ASSEMBLY (72-42-31, 01-010). Hold the gasket onto the flange in the mating position with CoMat 01-573 WAX BLEND, PARAFFIN.
Heat the No. 4 bearing rear seal assembly No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-120) to 225 deg F - 250 deg F (107 deg C - 121 deg C).
Use T-handles or other shop aids to install the No. 4 bearing rear seal assembly onto the No. 4 bearing support with the offset hole aligned with the dowel pin. Make sure that the gasket No. 4 Bearing Rear Face Seal Assembly(72-43-20,01-010) is in the correct position on the No.4 bearing support flange to prevent incorrect assembly. Install six work bolts and tighten them by hand. When the mated parts have cooled to room temperature, remove the work bolts and replace them with bolts No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-040).
Lubricate the threads of the bolts with CoMat 10-129 ANTI-SEIZE PASTE. Install the bolts No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-040) to the flange of the support.
Torque the bolts in the sequence shown in Figure to 62 lbfin to 72 lbfin (7.005 Nm to 8.135 Nm). Do not loosen the bolts. Do the complete torque procedure two more times. Wipe off excess paste.
Install the spacer assemblies No. 4 Bearing Rear Face Seal Assembly(72-43-20, 01-260) to the threaded holes in the seal assembly flange. Torque the spacer assemblies to 55 lbfin to 60 lbfin (6.214 Nm to 6.779 Nm).
SUBTASK 72-00-43-420-056 Install the No. 4 Bearing Rear Seal Assembly
Refer to Figure.

CAUTION
MAKE SURE YOU INSTALL THE NUTS WITH THE SHOULDERS AGAINST THE COOLING DUCT.
CAUTION
DO NOT LUBRICATE THE SPACER THREADS ON THE NO.4 BEARING FRONT COOLING DUCT WITH OIL OR OTHER THREAD LUBRICANTS. THESE SPACERS MUST HAVE ANTIGALLING COMPOUND PER TASK 72-42-35-200-001 BEFORE ASSEMBLY.NOTE
The 2A0891-01 and 2A1205-01 No.4 rear bearing cooling duct can be used with the new 2A1203 stage 1 HPT air seal. The new 2A1203 air seal must be used with the new 2A1204-01 No.4 bearing heatshield assembly. The old 2A0890-01 heatshield must not be used with the new air seal.Install the No.4 bearing rear cooling duct No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-010) over the No.4 bearing rear seal assembly. Align the holes in the duct flange with the spacer assemblies installed on the seal flange. Install No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-020) keywashers7 off (bent tabs up) and the nuts No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-040) over the spacer assemblies. Torque the nuts to 23 to 26 lbfin (2.592 to 2.938 Nm). Bend the washer tabs up against the flats of the nuts.

CAUTION
MAKE SURE YOU INSTALL THE NUTS WITH THE SHOULDERS AGAINST THE HEATSHIELD.Install the No.4 bearing heatshield No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-080) over the No.4 bearing rear cooling duct. Align the offset hole with the offset stud on the cooling duct. Install No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-100) keywashers8 off (bent tabs up) and the nuts No. 4 Bearing Rear Cooling Duct And Heatshield(72-43-30,01-120) to the studs. Torque the nuts to 23 to 26 lbfin (2.592 to 2.938 Nm). Bend the washer tabs up against the flats of the nuts.
Install the IAE 1P17511 cover 1 off over the rear of the engine and secure with hand pressure at the outer edge.
SUBTASK 72-00-43-420-057 Install the No. 4 Bearing Rear Cooling Duct and the No.4 Bearing Heatshield
Refer to Figure.
Install the IAE 1P16089 Leak check cap 1 off in the coupling nut of the pressure tube.
Install the IAE 1P16088 Leak check adapter 1 off in the scavenge tube.
Connect the IAE 6F10030 Vacuum test cart 1 off to the adapter.
Adjust the vacuum on the cart to 20in. 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
SUBTASK 72-00-43-720-051 Do a Check of the No. 4 Front and Rear Bearing Compartment for Leaks
Figure: No.4 Bearing, Outer Race Retaining Nut and Lock
No.4 Bearing, Outer Race Retaining Nut and Lock

Figure: Install the No.4 Bearing Outer Race
Install the No.4 Bearing Outer Race

Figure: Install the No.4 Bearing Outer Race Retaining Nut
Install the No.4 Bearing Outer Race Retaining Nut

Figure: Install the No.4 Bearing Outer Race Keywasher
Install the No.4 Bearing Outer Race Keywasher

Figure: No.4 Bearing Inner Race, Spacer and Front Seal Seat
No.4 Bearing Inner Race, Spacer and Front Seal Seat

Figure: Install the No.4 Bearing Inner Race
Install the No.4 Bearing Inner Race

Figure: No.4 Bearing Seal and Rear Seal Seat
No.4 Bearing Seal and Rear Seal Seat

Figure: Install the No.4 Bearing Rear Seal Seat
Install the No.4 Bearing Rear Seal Seat

Figure: Install the No.4 Bearing Rear Seal Assembly
Install the No.4 Bearing Rear Seal Assembly

Figure: Torque the No.4 Bearing Rear Seal Bolts
Torque the No.4 Bearing Rear Seal Bolts

Figure: Install the No.4 Bearing Rear Cooling Duct and Heatshield
Install the No.4 Bearing Rear Cooling Duct and Heatshield

Figure: V2500-A1 Pre SBE 72-0111: No.4 Bearing and Rear Compartment Parts - Fits and Clearances
V2500-A1 Pre SBE 72-0111: No.4 Bearing and Rear Compartment Parts - Fits and Clearances

Figure: V2500-A1 SBE 72-0111 and V2500-A5: No.4 Bearing and Rear Compartment Parts - Fits and Clearances
V2500-A1 SBE 72-0111 and V2500-A5: No.4 Bearing and Rear Compartment Parts - Fits and Clearances

Figure: Check the No.4 Front and Rear Bearing Compartment for Leaks
Check the No.4 Front and Rear Bearing Compartment for Leaks

