Installation of the Bearing in the Thrust-Reverser Cowl Hinge-Fitting at RIB3

TASK 54-57-17-400-807-A
Installation of the Bearing in the Thrust-Reverser Cowl Hinge-Fitting at RIB3

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: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

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

CAUTION: BEFORE YOU INSTALL/REMOVE THE GSE-TOOL, READ THE INSTRUCTIONS IN THE APPLICABLE GSE INSTRUCTION MANUAL. WHILE YOU OPERATE THIS TOOL, CAREFULLY OBEY THEM. IF YOU DO NOT OBEY THE INSTRUCTIONS, DAMAGE TO EQUIPMENT CAN OCCUR.

ZONE: 415
ZONE: 425

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	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 55 and 45 m.N (40.56 and 33.19 lbf.ft )
98D54003022000	1	RI BALL BEARING

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
415	LOWER PYLON
425	LOWER PYLON
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
9	BEARING	AIPC 54-57-87-31-015

E. Referenced Information

REFERENCE	DESIGNATION
TASK 78-30-00-440-807-A	Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU)
TASK 78-32-11-000-803-A	Removal of the Thrust Reverser Cowl Doors
TASK 78-32-11-400-803-A	Installation of the Thrust Reverser Cowl Doors
Installation of the Bearing in the Thrust-Reverser Cowl Hinge-Fitting at RIB3

3. Job Set-up
Subtask 54-57-17-860-058-A

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is set to the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch is in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to operate the ENG/MODE selector switch and 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(are) in position to tell persons not to energize FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position:
(a) For the left pylon, at zone 415
(b) For the right pylon, at zone 425.
(4) Make sure that the applicable thrust-reverser cowl door is removed (Ref. AMM TASK 78-32-11-000-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)

451AL or 452AR.

(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)

461AL or 462AR.

4. Procedure
Subtask 54-57-17-420-065-A

A. Installation of the Bearing in the Thrust-Reverser Cowl Hinge-Fitting at RIB3
(1) Do an inspection of the component interfaces and the adjacent area.
(2) Clean the component interfaces and the adjacent area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Make sure that the parts retained from the removed component are clean and in the correct condition.
(4) Make sure that the new AIPC 54-57-87-31-015 BEARING (9) is clean and in the correct condition.

NOTE: The bearing (9) of the thrust-reverser cowl hinge-fitting (2) has one outer ring (1), one tabwasher (3) and one slotted nut (4).
The outer ring (1) has an inner bush.

(5) To install the bearing (9) on the thrust-reverser cowl hinge-fitting (2), you must use the 98D54003022000 RI BALL BEARING.

NOTE: The 98D54003022000 RI BALL BEARING has two sockets (5) and (6) and one screw puller (7).

(6) Put the new outer ring (1) on the screw puller (7).
(a) Make sure that the outer ring (1) touches the shim (8).
(7) Install the screw puller (7) together with the outer ring (1) on the thrust-reverser cowl hinge-fitting (2).
(8) Tighten the screw puller (7) to install the outer ring (1) in the thrust-reverser cowl hinge-fitting (2).
(9) Make sure that the outer ring (1) is correctly installed in the thrust-reverser cowl hinge-fitting (2).
(10) Remove the screw puller (7).
(11) Install the new tabwasher (3) and the new slotted nut (4) on the outer ring (1).
(12) Put the socket (5) on the outer ring (1) and hold them in position.
(13) Put and hold the socket (6) on the slotted nut (4).
(14) TORQUE the slotted nut (4) to between 55 and 45 m.N (40.56 and 33.19 lbf.ft )

.
(15) Remove the sockets (5) and (6).
(16) Bend the tabwasher (3) on the slotted nut (4).

5. Close-up
Subtask 54-57-17-410-062-A

A. Close Access
(1) Install the removed thrust-reverser cowl door (Ref. AMM TASK 78-32-11-400-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
- 451AL or 452AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
- 461AL or 462AR.

Subtask 54-57-17-440-057-A

B. Reactivation of the Thrust Reverser
(1) Make the applicable thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-807).

Subtask 54-57-17-942-054-A

C. Aircraft Maintenance Configuration
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:03:52 UTC