Installation of the Upper Inhibit Lever Cable [PW11]

TASK 78-31-06-400-802-A
Installation of the Upper Inhibit Lever Cable

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: YOU MUST NOT GET HYDRAULIC FLUID ON YOUR SKIN, IN YOUR EYES OR IN YOUR MOUTH. THE HYDRAULIC FLUID IS POISONOUS AND CAN BE ABSORBED INTO YOUR BODY. IF YOU ACCIDENTALLY GET HYDRAULIC FLUID IN YOUR EYES, MOUTH OR ON YOUR SKIN, FLUSH WITH WATER AND GET MEDICAL AID.

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

CAUTION: YOU MUST NOT LET HYDRAULIC FLUID FALL ON THE ENGINE. UNWANTED HYDRAULIC FLUID MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT- FREE CLOTH. THE HYDRAULIC FLUID CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND SOME PARTS.

ZONE: 400
FIN: 4311KM1 ** ON A/C NOT FOR ALL
FIN: 4311KM2 ** ON A/C NOT FOR ALL

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)
No specific	Torque wrench: range to between 44.2 and 26.5 lbf.in (0.50 and 0.30 m.daN )
No specific	Torque wrench: range to between 42.5 and 32.7 lbf.in (0.48 and 0.37 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06CMD9)	Silicone Adhesive Sealant-General Purpose One part legacy

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
413AL, 413AT, 437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
423AL, 423AT, 447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
3	PIN	AIPC 78-36-86-02-010

E. Referenced Information

REFERENCE	DESIGNATION
TASK 54-52-11-000-805-A	Removal of the Access Skin Panels
TASK 54-52-11-400-805-A	Installation of the Access Skin Panels
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 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 78-31-06-820-801-A	Adjustment of the Inhibit Cable
Inhibit Cable Handle Assembly
Upper Inhibit Lever Cable

3. Job Set-up
Subtask 78-31-06-941-054-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)

Subtask 78-31-06-010-054-A ** ON A/C NOT FOR ALL

B. Get Access

Inhibit Cable Handle Assembly ** ON A/C NOT FOR ALL

(1) Make sure that the lower inhibit cable handle assembly (1) is in the inhibited position.
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position.
(3) Make sure that the pylon access panels are removed (Ref. AMM TASK 54-52-11-000-805).
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
413AT 413AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
423AT 423AL

4. Procedure
Subtask 78-31-06-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the Upper Inhibit Lever Cable
(1) Make sure that the fan cowl doors are open (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) Clean the screws (9), the captive nuts and the surface of the pylon.
(3) Attach the upper inhibit lever cable (1) to the pylon with the two screws (9) and the two washers (10).
(4) TORQUE the two screws (9) to between 42.5 and 32.7 lbf.in (0.48 and 0.37 m.daN )

.
(5) Apply the Silicone Adhesive Sealant-General Purpose One part legacy (Material No.06CMD9) on the screws (9) and its captive nuts.
(6) Connect the lower inhibit cable to the upper inhibit cable.
(a) Move the quick release sleeve (8) on the lower inhibit cable handle assembly (7) back and turn to lock in position.

CAUTION: MAKE SURE THE LOWER INHIBIT CABLE HANDLE ASSEMBLY AND THE UPPER INHIBIT CABLE ENGAGE CORRECTLY. IF THE LOWER INHIBIT CABLE HANDLE ASSEMBLY AND THE UPPER INHIBIT CABLE ARE NOT ENGAGED CORRECTLY, THE SYSTEM CAN OPERATE INCORRECTLY.

(b) Engage the lower inhibit cable handle assembly connector (6) and the upper inhibit cable connector (5).

(c) Engage the two guides (11) on the lower inhibit cable handle assembly (7):

CAUTION: MAKE SURE THAT YOU CAN EASILY ENGAGE THE TWO GUIDES ON THE LOWER INHIBIT CABLE ASSEMBLY IN THE INTERFACE GROOVE ON THE UPPER INHIBIT CABLE. IF THE GUIDES AND THE INTERFACE GROOVE ARE NOT ENGAGED CORRECTLY, THE SYSTEM CAN OPERATE INCORRECTLY.

1 Engage the two guides (11) on the lower inhibit cable handle assembly (7) to the interface groove on the upper inhibit cable (1).
If you cannot do this, adjust the lower inhibit cable (Ref. AMM TASK 78-31-06-820-801).
(d) Close the quick release sleeve (8):

CAUTION: MAKE SURE THAT YOU CAN EASILY CLOSE THE QUICK-RELEASE SLEEVE. IF YOU USE FORCE TO PUSH OR PULL THE QUICK-RELEASE SLEEVE, DAMAGE TO THE COMPONENT CAN OCCUR AND THE SYSTEM CAN OPERATE INCORRECTLY.

1 Turn the quick release sleeve (8) on the lower inhibit cable handle assembly (7) to unlock and move it up to close.
2 Make sure that the quick release sleeve (8) touches the upper inhibit cable (1) or there is only a very small distance between them.
(e) If the lower inhibit cable handle assembly (7) and the upper inhibit cable (1) are not engaged correctly, adjust the lower inhibit cable (Ref. AMM TASK 78-31-06-820-801).
(7) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
(8) Connect the upper inhibit lever cable (1) to the Hydraulic Control Unit (HCU) (4) with the nut (2).
(9) TORQUE the nut (2) to between 44.2 and 26.5 lbf.in (0.50 and 0.30 m.daN )

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(10) Safety the nut (2) with the new AIPC 78-36-86-02-010 PIN (3).

5. Close-up
Subtask 78-31-06-410-052-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panel on the pylon (Ref. AMM TASK 54-52-11-400-805).
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
413AT 413AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
423AT 423AL
(3) Remove the access platform(s).
(4) Put the lower inhibit cable handle assembly (1) in the active position.
(5) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 13:12:51 UTC