Installation of the Roller on the Electrical Tertiary Lock System [CFML]

TASK 78-37-53-400-801-A
Installation of the Roller on the Electrical Tertiary Lock System

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.

FIN: 4006KM

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

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.31 and 0.26 m.daN (27.43 and 23.01 lbf.in )
No specific	Torque wrench: range to between 2.33 and 2.19 m.daN (17.18 and 16.15 lbf.ft )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CPNCL00062)	LUBRICATING OIL TURBINE ENGINE SYNT BASE
(Material No.CPNCL02655)	Wire - Locking Dia: 0.9 mm CRES =AS3510-0318K

C. Work Zones and Access Panels

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

D. 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 73-29-00-740-804-A	Thrust Reverser Cycling Test (Menu Mode)
TASK 78-30-00-040-807-A	Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU)
TASK 78-30-00-440-807-A	Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU)
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
TASK 78-37-00-440-803-A	Activation of the Electrical Tertiary Lock System
Roller on the Electrical Tertiary Lock System

3. Job Set-up
Subtask 78-37-53-941-051-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 the WARNING NOTICE(S) are 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 the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).

Subtask 78-37-53-010-052-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

Subtask 78-37-53-040-051-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 you did the deactivation of the thrust reverser system for nacelle maintenance (Ref. AMM TASK 78-30-00-040-807).

Subtask 78-37-53-010-053-A

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

4. Procedure
Subtask 78-37-53-420-050-A

A. Installation of the Roller

Roller on the Electrical Tertiary Lock System

(1) Lubricate the threads of the six screws (5) and bolt (3) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
(2) Put the roller (1) in position and align it with the two holes in the support bracket (6).
(3) Install the inner sleeve (2) and bolt (3) to attach the roller (1) to the support bracket (6).
(4) TORQUE the bolt (3) to between 2.33 and 2.19 m.daN (17.18 and 16.15 lbf.ft )

.
(5) Install the lockwire

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(a) Install the CPNCL02655Wire - Locking Dia: 0.9 mm CRES =AS3510-0318K between the bolt (3) and the support bracket (6).
(6) Install the cover (4) and the six screws (5).
(7) TORQUE the six screws (5) to between 0.31 and 0.26 m.daN (27.43 and 23.01 lbf.in )

5. Close-up
Subtask 78-37-53-410-050-A

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

Subtask 78-37-53-440-050-A

B. Activation of the Thrust Reverser System and the Electrical TLS
(1) Do the reactivation of the thrust reverser system after nacelle maintenance (Ref. AMM TASK 78-30-00-440-807).
(2) Do the activation of the Electrical Tertiary Lock (Ref. AMM TASK 78-37-00-440-803).

Subtask 78-37-53-740-050-A

C. Do the thrust reverser cycling test (menu mode) (Ref. AMM TASK 73-29-00-740-804).

Subtask 78-37-53-410-051-A

D. 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 WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 03:37:31 UTC