TASK 71-21-11-420-001 Install The Front Mount Support Assembly And Mount Brackets

DMC:V2500-A0-71-21-1100-00A-720A-B|Issue No:001.00|Issue Date:2014-05-01

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 71-21-11-420-001 Install The Front Mount Support Assembly And Mount Brackets

General

This TASK gives the procedure to install the Forward Mount Support.

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

Lubricate all threads and mating faces of nuts and bolts with CoMat 10-077 APPROVED ENGINE OILS, unless other lubricants are referred to in the procedure.

The number for each radial location must be identified in a clockwise direction. These start at the engine top position, which is the No. 1 strut position of the fan frame 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

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 1J12127 0AM53 heater0AM53IAE 1J12127
IAE 6F10027 Heater control unit0AM53IAE 6F10027

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-077 APPROVED ENGINE OILSLOCALCoMat 10-077

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 71-21-11-420-051-A00 V2500-A1: Install the No. 2 Strut Thrust Mount Bracket (01-500) and the No. 10 Strut Thrust Mount Bracket (01-700) (Pre SBE 72-0150)

    1. Refer to Figure.

    2. Engage the aligning pin hole in each mount bracket with the aligning pin on each mounting pad of the struts.

    3. Hold the mount brackets on each strut of the fan frame while you install the bolts (01-520 and 01-720). Attach the nuts (01-510 and 01-710) to the bolts.

    4. Torque the bolts to 290 to 370 lbf.in (33.00 to 42.00 Nm).

    2. SUBTASK 71-21-11-420-051-B00 V2500-A1: Install the No. 2 Strut Thrust Mount Bracket (01-500) and the No. 10 Strut Thrust Mount Bracket (01-700) (SBE 72-0150)

    1. Refer to Figure.

    2. Engage the aligning pin hole in each mount bracket with the aligning pin on each mounting pad of the struts.

    3. Hold the mount brrackets on each strut of the fan frame while you install the bolts (01-520 and 01-720). Attach the nuts (01-510 and 01-710) to the bolts.

    4. Torque the bolts to 450 to 525 lbf.in (51.00 to 59.00 Nm).

    3. SUBTASK 71-21-11-420-051-C00 V2500-A5: Install the No. 2 Strut Thrust Mount Bracket (01-500) and the No. 10 Strut Thrust Mount Bracket (01-700)

    1. Refer to Figure.

    2. Engage the aligning pin hole in each mount bracket with the aligning pin on each mounting pad of the struts.

    3. Hold the mount brackets on each strut of the fan frame while you install the bolts (01-520 and 01-720). Attach the nuts (01-510 and 01-710) to the bolts.

    4. Torque the bolts to 450 to 525 lbf.in. (51.00 to 59.00 Nm).

    4. SUBTASK 71-21-11-420-052 Install the Mount Tube Outer Race Assembly (01-100) on to the Front Engine Mount Tube (01-150)

    1. Refer to Figure.

    2. Lubricate the spherical bearing surface of the mount tube with CoMat 10-077 APPROVED ENGINE OILS.

      3. NOTE

        The mount tube upper outer race and lower outer race are a serialized set that must be kept together as a set in each engine build.

        Install the upper and the lower outer races on to the spherical bearing of the mount tube.

      1. NOTE

        Only the lower outer race has a scalloped opening.

        Install the lower outer race on to the lower face of the spherical bearing surface.

      2. Install the upper outer race on to the upper face of the spherical bearing surface.

    4. Engage the four aligning pin holes on the lower outer race to the four aligning pins on the upper outer race.

    5. SUBTASK 71-21-11-220-051 Examine the Clearance between the Outer Races

    1. Examine the clearance between the two mating surfaces. No clearances are permitted.

    6. SUBTASK 71-21-11-420-053 Install the Front Engine Mount Tube and the Mount Tube Outer Race Assembly

    1. Refer to Figure and Figure.

    2. Put the IAE 1J12127 0AM53 heater 1 off into the bearing bore and attach it on to the No. 1 strut pad. Attach the heater to one of the eight studs on the pad with the clip of the heater.

    3. Connect the IAE 6F10027 Heater control unit 1 off to the local heater.

    4. Increase the temperature to approximately 212 deg F (100 deg C).

    5. NOTE

      Do this operation while you increase the temperature to the specified value with the heater at operation C.

      Freeze the mount tube outer race assembly with dry ice for 30 minutes.

    6. WARNING

      DO NOT TOUCH THE HOT SURFACE OF THE LOCAL HEATER.

      CAUTION

      HOLD THE TWO HALVES OF THE OUTER RACE ASSEMBLY BY HAND TO KEEP THEM IN POSITION DURING THEIR INSTALLATION.

      Remove the heater and install the mount tube and mount tube outer race assembly into the bore as quickly as possible. Make sure that the TOP mark on the mount tube is put at the highest position on the mount tube.

    7. Attach the front engine mount tube and the mount tube outer race assembly to the No. 1 strut pad with the eight nuts (01-110).

    8. Torque the nuts to 290 to 370 lbf.in (33.00 to 42.00 Nm).

    7. Figure: Install the Front Engine Mount Tube and the No.2 and No.10 Strut Thrust Mount Brackets

    Install the Front Engine Mount Tube and the No.2 and No.10 Strut Thrust Mount Brackets

    Figure: Increase the Temperature of the No.1 Strut Bore with the Heater

    Increase the Temperature of the No.1 Strut Bore with the Heater

Requirements After Job Completion

Follow-On Conditions

NONE
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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X333X
Supply Number:CoMat 10-077
Type:sp01
Supply Short Name:CoMat 10-077 APPROVED ENGINE OILS
Supply Name:CoMat 10-077 APPROVED ENGINE OILS
Specification Groups:
Doc NumberType
For V2500-A1/A5/D5 models - Refer to V2500 Service Bulletin ENG-79-0108
For V2500-E5 model - Refer to Service Bulletin E5-79-0001
Suppliers:
ManufacturerRemarks
X333X
Manufacturer Code:0AM53
Tool Number:IAE 1J12127
Tool Name:IAE 1J12127 0AM53 heater
Manufacturer Code:0AM53
Tool Number:IAE 6F10027
Tool Name:IAE 6F10027 Heater control unit