Manual Extension of the Thrust-Reverser Translating Sleeves [PW11]

TASK 78-32-00-860-802-A
Manual Extension of the Thrust-Reverser Translating Sleeves

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

WARNING: ALWAYS USE APPLICABLE GLOVES TO TOUCH HOT PARTS. HOT PARTS CAN CAUSE INJURY TO PERSONS.

WARNING: WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.

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	1	EXTENSION 3/8 IN - SQUARE DRIVE
636-3000-28GSE	4	TR ACT. PRIM. LCK PIN

B. Work Zones and Access Panels

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

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-32-00-860-803-A	Manual Retraction of the Thrust-Reverser Translating Sleeves
TASK 78-37-00-040-801-A	Deactivation of the Thrust Reverser Actuation System (TRAS) Track Lock
Manual Extension/Retraction of the Thrust-Reverser Translating Sleeves

3. Job Set-up
Subtask 78-32-00-860-077-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 78-32-00-010-091-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

Subtask 78-32-00-040-070-A ** ON A/C NOT FOR ALL

C. Deactivation of the Thrust Reverser for Maintenance

WARNING: MAKE SURE THAT YOU DO THE DEACTIVATION OF THE THRUST REVERSER BEFORE YOU DO MAINTENANCE WORK ON OR AROUND THE THRUST REVERSER. IF YOU DO NOT DO THIS PROCEDURE, THERE IS A RISK OF UNWANTED OPERATION AND THUS OF INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

(1) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805).

4. Procedure
Subtask 78-32-00-860-058-A ** ON A/C NOT FOR ALL

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

A. Manual Extension of the Thrust-Reverser Translating Sleeves

NOTE: This procedure is shown for the left thrust reverser door. The procedure is the same for the right thrust reverser door.

(1) Deactivate the TRAS track lock for the applicable thrust reverser half (Ref. AMM TASK 78-37-00-040-801).
(2) Deactivate the TRAS locking feedback actuator for the applicable thrust reverser half.
(a) Turn the TRAS locking feedback actuator manual lock drive to the unlocked position.
(b) Install the 636-3000-28GSE TR ACT. PRIM. LCK PIN in the TRAS locking feedback actuator through the manual lock drive to hold the manual lock drive in position.
(3) Deactivate the TRAS locking actuator for the applicable thrust reverser half.
(a) Turn the TRAS locking actuator manual lock drive to the unlocked position.
(b) Install the 636-3000-28GSE TR ACT. PRIM. LCK PIN in the TRAS locking actuator through the manual lock drive to hold the manual lock drive in position.
(4) Manually extend the applicable translating sleeve.

CAUTION: DO NOT EXTEND THE THRUST REVERSER TRANSLATING SLEEVE WITH THE THRUST REVERSER HALVES OPEN. DAMAGE TO EQUIPMENT CAN OCCUR.

(a) Make sure that the manual drive unit lever is in unlocked position.
(b) Put the EXTENSION 3/8 IN - SQUARE DRIVE in the square drive tool engagement.

NOTE: A maximum speed of 600 rpm is permitted for the manual drive unit.

NOTE: Turn the manual drive unit on the left thrust reverser half counter clockwise to extend the translating sleeve. Turn the manual drive unit on the right thrust reverser half clockwise to extend the translating sleeve.

NOTE: The manual drive unit has a torque limiter breakout torque between 70 lbf.in (0.79 m.daN) and 96 lbf.in (1.08 m.daN).

(d) Remove the EXTENSION 3/8 IN - SQUARE DRIVE from the square drive tool engagement.
(e) Turn the manual drive unit lever to the locked position if necessary.
(5) Retraction of translating sleeve:

CAUTION: IF YOU MANUALLY EXTEND THE TRANSLATING SLEEVE WITH THE MANUAL DRIVING UNIT, MAKE SURE THAT YOU MANUALLY RETRACT THE TRANSLATING SLEEVE WITH THE MANUAL DRIVE UNIT. IF YOU MANUALLY EXTEND THE TRANSLATING SLEEVE WITH THE MANUAL DRIVE UNIT AND RETRACT THE TRANSLATING SLEEVE HYDRAULICALLY, DAMAGE TO THE COMPONENTS CAN OCCUR.

(a) To retract the translating sleeves, make sure that you retract the translating sleeves using the manual drive unit (Ref. AMM TASK 78-32-00-860-803).

[Rev.10 from 2021] 2026.04.01 03:52:13 UTC