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 72-32-00-430-005 LPC/Intermediate Case Module - Install The No. 1 Bearing Support Assembly, Assembly-005
General
This TASK gives the procedure to install the No. 1 Bearing Support Assembly. For the other parts of the LP Compressor/Intermediate Case Module, refer to TASK 72-32-00-430-000 (ASSEMBLY-000).
Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For 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 the standard torque data and procedures, refer to the SPM TASK 70-41-00-400-501 and SPM TASK 70-41-02-400-501.
To identify, lubricate and install seal rings, refer to SPM TASK 70-44-01-400-501.
Special torque data and assembly tolerances are included in the procedure.
Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-077 APPROVED ENGINE OILS, unless other lubricants are referred to in the procedure. For the approved oils and procedures, refer to the SPM TASK 70-64-00-640-501.
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
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Hot air gun | LOCAL | Hot air gun | ||
| IAE 6F10029 Air flow test cart | 0AM53 | IAE 6F10029 | 1 | |
| IAE 1J12450 Adapter | 0AM53 | IAE 1J12450 | 1 | |
| IAE 1J12507 Guide pin | 0AM53 | IAE 1J12507 | 1 | |
| IAE 1J12205 Oil tube cover | 0AM53 | IAE 1J12205 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 10-077 APPROVED ENGINE OILS | LOCAL | CoMat 10-077 |
Safety Requirements
NONEProcedure
Refer to Figure.
Reference dimensions at location 0304. If required, use the data written as a note in TASK 72-32-03-200-000 (INSPECTION-000) and TASK 72-32-41-200-000 (INSPECTION-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 0304
No. 1 Bearing Support No. 1 Bearing Front Support And Rear Support Assembly (72-32-41, 01-240)
Fan Frame Fan Frame Assembly And Related Parts (72-32-03, 03-100)
No. 1 Bearing Support Outside Diameter
21.5020
21.5047
Intf
0.0017
Fan Frame Bore Diameter
21.4961
21.5003
0.0086
Intf
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 0304
No. 1 Bearing Support No. 1 Bearing Front Support And Rear Support Assembly (72-32-41, 01-240)
Fan Frame Fan Frame Assembly And Related Parts (72-32-03, 03-100)
No. 1 Bearing Support Outside Diameter
546.150
546.220
Intf
0.040
Fan Frame Bore Diameter
546.000
546.110
0.220
Intf
SUBTASK 72-32-00-220-108-A00 Reference Fits and Clearances of the No. 1 Bearing Support and Fan Frame at Location 0304 (Pre SBE 72-0391)
Refer to Figure.
SBE 72-0391: New separate type No. 1 Bearing Support Assembly.
Reference dimensions at location 0304. If required, use the data written as a note in TASK 72-32-03-200-000 (INSPECTION-000) and TASK 72-32-41-200-000 (INSPECTION-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 0304
No. 1 Bearing Rear Support Assembly No. 1 Bearing Front Support And Rear Support Assembly (72-32-41, 01-400)
Fan Frame Fan Frame Assembly And Related Parts (72-32-03, 03-100)
No. 1 Bearing Rear Support Assembly Outside Diameter
21.5020
21.5047
Intf
0.0017
Fan Frame Bore Diameter
21.4961
21.5003
0.0086
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 0304
No. 1 Bearing Rear Support Assembly No. 1 Bearing Front Support And Rear Support Assembly (72-32-41, 01-400)
Fan Frame Fan Frame Assembly And Related Parts (72-32-03, 03-100)
No. 1 Bearing Rear Support Assembly Outside Diameter
546.150
546.220
Intf
0.040
Fan Frame Bore Diameter
546.000
546.110
0.220
Intf
SUBTASK 72-32-00-220-108-B00 Reference Fits and Clearances of the No. 1 Bearing Support and Fan Frame at Location 0304 (SBE 72-0391)
Refer to Figure.
SUBTASK 72-32-00-430-103 Turn the Fan Frame Vertical with the Front End Up
Lubricate (02-188) sealing ring 1 off with CoMat 10-077 APPROVED ENGINE OILS. Install the ring into the groove in the No. 1 Bearing Support.
Lubricate (02-190) sealing rings 2 off with CoMat 10-077 APPROVED ENGINE OILS approved engine oils. Install them on the oil feed tube in the No. 1 Bearing Support Assembly.
Install the three aligning pins (part of IAE 1J12507 Guide pin 1 off) into three of the 42 threaded holes in the mounting flange. The three aligning pins must be installed at approximately 120 degrees apart from each other.
SUBTASK 72-32-00-430-104-A00 Install the No. 1 Bearing Support Assembly to the Fan Frame Assembly (Pre SBE 72-0391)
SBE 72-0391SBE: New separate type No. 1 Bearing Support Assembly
Lubricate (02-188) sealing ring 1 off with CoMat 10-077 APPROVED ENGINE OILS. Install the ring into the groove in the No. 1 Bearing Support.
Lubricate (02-190) sealing rings 2 off with CoMat 10-077 APPROVED ENGINE OILS. Install them on the oil feed tube in the No. 1 Bearing Support Assembly.
Install the three aligning pins (part of IAE 1J12507 Guide pin 1 off) into three of the 42 threaded holes in the mounting flange. The three aligning pins must be installed at approximately 120 degrees apart from each other.
Attach the No. 1 Bearing Support Assembly with the 18 bolts (02-187) the 24 bolts (02-182) and the 42 washers (02-181). Torque the 42 bolts to 180 lbfin to 220 lbfin (20.00 Nm to 25.00 Nm).
NOTE
You must identify the bolt (02-187) and the bolt (02-182) by their length. The bolt (02-187) is longer than the bolt (02-182).
SUBTASK 72-32-00-430-104-B00 Install the No. 1 Bearing Support Assembly to the Fan Frame Assembly (SBE 72-0391)
Refer to Figure.
SUBTASK 72-32-00-430-105 Turn the Fan Frame Assembly to the Horizontal
Install the IAE 1J12450 Adapter 1 off on to the oil feed adapter in the No. 4 Strut with the three bolts (part of the adapter). Tighten the bolts Figure.
Connect the quick connective coupling of the IAE 6F10029 Air flow test cart 1 off to a shop air supply connection.
Replace the adapter with the IAE 1J12205 Oil tube cover 1 off, Figure.
SUBTASK 72-32-00-430-106 Do an Air Flow Check for the Oil Feed Tubes of the Front Bearing Compartment
Figure: Locations for the Fits and Clearances
Locations for the Fits and Clearances

Figure: Install the Lock Pin into Position to Lock the Handle of the Turnover Stand
Install the Lock Pin into Position to Lock the Handle of the Turnover Stand

Figure: Install the No. 1 Bearing Support Assembly to the Fan Frame Assembly
Install the No. 1 Bearing Support Assembly to the Fan Frame Assembly

Figure: Install the No. 1 Bearing Support Assembly to the Fan Frame Assembly
Sheet 2

Figure: Install the No. 1 Bearing Support Assembly to the Fan Frame Assembly
Sheet 3

Figure: Do an Airflow Check for the Oil Feed Tubes of the Front Bearing Compartment
Do an Airflow Check for the Oil Feed Tubes of the Front Bearing Compartment

Figure: Install the Oil Tube Cover on to the Oil Feed Adapter
Install the Oil Tube Cover on to the Oil Feed Adapter

