Installation of the Right Forward Mount Thrust Link [CFML]

TASK 71-21-11-400-803-A
Installation of the Right Forward Mount Thrust Link

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 400

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 2.23 and 1.79 m.daN (16.45 and 13.20 lbf.ft )
98D71203018000	1	THRUST LINK R/I FOR CFM

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP1041)	isopropyl alcohol
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR, 461AL, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
6	COTTER PIN	AIPC 71-21-86-50-010

E. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A	Closing of the Fan Cowl Doors
TASK 72-24-03-400-801-A	Installation of the Strut 1
TASK 72-24-80-400-801-A	Installation of the Variable Bleed Valve (VBV) Ducts
TASK 78-30-00-040-809-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-809-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-806-A	Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A	Closing of the Thrust Reverser Cowl Doors
Right Forward Mount Thrust Link

3. Job Set-up
Subtask 71-21-11-941-071-A

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that a WARNING NOTICE(S) was in position to tell persons not to operate:

The ENG/MODE selector switch
The ENG/MASTER 1(2) control switch.

(2) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that a WARNING NOTICE(S) was in position to tell persons not to energize FADEC 1(2).

Subtask 71-21-11-010-099-A

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803).
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.

Subtask 71-21-11-040-072-A

C. Deactivation of the Thrust Reverser System for Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Make sure that the thrust reversers are deactivated for ground maintenance (Ref. AMM TASK 78-30-00-040-809).

Subtask 71-21-11-010-100-A

D. Get Access
(1) Make sure that the thrust-reverser cowl doors are open (Ref. AMM TASK 78-36-00-010-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR

4. Procedure
Subtask 71-21-11-420-068-A

A. Preparation for the Installation
(1) Make sure that the 98D71203018000 THRUST LINK R/I FOR CFM is installed.
(a) Refer to the manufacturer's instructions.

Subtask 71-21-11-420-070-A

B. Installation of the Right Forward Mount Thrust Link

CAUTION: HOLD THE THRUST LINK TO PREVENT HARD CONTACT WITH THE ENGINE DURING THE STEPS THAT FOLLOW. BE CAREFUL NOT TO CAUSE DAMAGE (SCRATCHES) TO THE ENGINE CASE.

CAUTION: DO NOT USE GREASE OR OIL ON ANY PARTS OF THESE ASSEMBLIES. THIS CAN CAUSE DAMAGE TO THE EQUIPMENT.

(1) Installation of the thrust link (7)

CAUTION: MAKE SURE THAT YOU INSTALL THE THRUST LINKS IN THE CORRECT POSITION. IF YOU NOT OBEY THIS INSTRUCTION, DAMAGE TO THE EQUIPMENT CAN OCCUR.

CAUTION: MAKE SURE THAT, FOR EACH WASHER, YOU INSTALL THE CORRECT PART NUMBER AT THE CORRECT LOCATION. IF YOU DO NOT OBEY THIS INSTRUCTION, THE PIN CAN BE MOVED OUT FROM ITS POSITION.

(a) Safely support the thrust link (7) and keep it away from other engine components.
(b) Put the thrust link (7) in position on the forward mount assembly (8) and the engine case (9).
(c) To install the thrust link (7), move its aft and forward ends in sequence:
1 Place the forward end of the link and move slightly outward.
2 Place the aft end of the link and move slightly inward.
3 Repeat the steps 4.B.(1)(c)1_ and 4.B.(1)(c)2_ until the thrust link end axis are aligned with the two clevis.
(2) Clean the pin-holes of the clevis (7) and the pins (3) with isopropyl alcohol (Material No.CP1041) .
(3) Install the pins (3) on the assembly of the forward mount assembly (8) and the thrust link (7), and on the assembly of the engine case (9) and the thrust link (7).

NOTE: You can act on the 98D71203018000 THRUST LINK R/I FOR CFM to help with the installation of the pins (3).

(4) Install the washers (2) and the bolt (1) on the two sides of the assemblies.
(5) Install the washers (4) and the nuts (5) on the two sides of the assemblies
(6) Make sure that the washers (2) and (4) cover completely the shoulder of the bushes and that no pin (3) translation is possible.
(7) TORQUE the two nuts (5) to between 2.23 and 1.79 m.daN (16.45 and 13.20 lbf.ft )

.
(8) Install the new AIPC 71-21-86-50-010 COTTER PIN (6) on the nuts (5).
(9) Remove Textile-Lint free Cotton - (Material No.14SBA1) below the thrust link clevis.
(10) Remove the 98D71203018000 THRUST LINK R/I FOR CFM. Refer to the manufacturer's instructions.
(11) Connect the connectors of the harnesses HJ8A (13) and HJ8B (12) on the connector plate.
(12) Install the harnesses (11), HJ8A (13) and (14), and HJ8B (12) in the clamps on the bracket (10).
(13) Install the Variable Bleed Valve (VBV) ducts 1, 2, 3, 7 and 8 (Ref. AMM TASK 72-24-80-400-801).
(14) Install the strut 1 (Ref. AMM TASK 72-24-03-400-801).

5. Close-up
Subtask 71-21-11-410-088-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR

Subtask 71-21-11-440-064-A

B. Do the reactivation of the thrust reverser system after ground maintenance (Ref. AMM TASK 78-30-00-440-809).

Subtask 71-21-11-410-089-A

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:35:43 UTC