Removal of the Filter HP Assembly

TASK 29-16-11-000-801-A
Removal of the Filter HP Assembly

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

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

ZONE: 190
FIN: 1132GM

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	CAP - BLANKING
No specific	1	CONTAINER 3 L(3/4 USGAL)
No specific	AR	PLUG - BLANKING
No specific	2	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
190	BELLY FAIR, AIR CONDITIONING & HYD COMPT
197BB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
HP Filter

3. Job Set-up
Subtask 29-16-11-010-054-A

A. Get Access
(1) Remove the access panel 197BB.
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the ground service panel of the Green hydraulic system.

Subtask 29-16-11-860-056-A

B. Aircraft Maintenance Configuration
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
(2) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Green hydraulic system:

In the cockpit on the hydraulic panel 40VU of the overhead panel,
On the ground service panel of the Green hydraulic system.

(3) Depressurize the aircraft hydraulic systems
(Ref. AMM TASK 29-00-00-864-001).
(4) Depressurize the reservoir of the Green hydraulic system (Ref. AMM TASK 29-14-00-614-001).
(5) Put the CONTAINER 3 L(3/4 USGAL) below the filter to collect the unwanted hydraulic fluid.

4. Procedure
Subtask 29-16-11-020-053-A

A. Removal of the Filter HP Assembly

CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU DO NOT USE THE SECOND WRENCH, THERE IS A RISK THAT YOU WILL LOOSEN OR TIGHTEN THE UNION TOO MUCH.

(1) Loosen the union nut (2) and disconnect the restrictor from the union (3).
(2) Loosen the union nut (4) and disconnect the pipe from the union (5).
(3) Put the PLUG - BLANKING on the disconnected line end-ittings.
(4) Remove the unions (3) and (5).
(5) Remove and discard the packings (6) and (7).
(6) Hold the HP filter (1).
(7) Remove the bolts (8) and the nuts (9).
(8) Remove the HP filter (1).
(9) Put the CAP - BLANKING in the open ports of the HP Filter.

[Rev.10 from 2021] 2026.04.01 00:25:20 UTC