Deactivation of the Case Drain Filter of the Electric Pump of the Blue Hydraulic System

TASK 29-10-00-040-003-A
Deactivation of the Case Drain Filter of the Electric Pump of the Blue Hydraulic System

FIN: 2084GM
Task Summary

Access	Test	Specific Tools	Mhr	E/T	Nb Men
YES	NO	NO	1.3	1.3	1

1. Reason for the Job
MMEL 29-10-09A
HYDRAULIC CASE DRAIN FILTER
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	CONTAINER 2 L (0.53 USGAL)
No specific	2	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -
No specific	lockwire, corrosion-resistant steel, dia. 0.8 mm (0.032 in.)

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
195BB

D. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 12-12-29-611-002-A	Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart
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 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-14-00-614-002-A	Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01	Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
Case Drain Filter of the Electric Pump of the Blue Hydraulic System

3. Job Set-up
Subtask 29-10-00-860-091-A

A. Aircraft Maintenance Configuration

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

(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 Blue hydraulic system:

in the cockpit on the hydraulic section 40VU of the overhead panel,
on the ground service panel of the Blue hydraulic system.

(3) Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(4) Depressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-001).

Subtask 29-10-00-010-061-A

B. Open the access door 195BB.

Subtask 29-10-00-941-054-A

C. Put a CONTAINER 2 L (0.53 USGAL) in position under the filter to collect the hydraulic fluid.

4. Procedure
Subtask 29-10-00-040-052-A

A. Deactivation of the Case Drain Filter (2084GM)

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.

(1) Remove and discard the lockwire between the filter bowl (3) and the filter head (1).
(2) Remove the filter bowl (3) together with the filter element (2).

NOTE: You may have to pull the filter element (2) to release it from the filter head (1).

(3) Discard the filter element (2).
(4) Clean the filter bowl (3) and apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to its threads.
(5) Install the filter bowl (3) in the filter head (1) and tighten it with your hands.

(6) Safety the filter bowl (3) to the filter head (1) with lockwire, corrosion-resistant steel, dia. 0.8 mm (0.032 in.).
(7) If the red clogging indicator is out, push it in to set it again.

Subtask 29-10-00-860-092-A

B. Preparation for the Test
(1) Make sure that the content of the reservoir of the Blue hydraulic system is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
(2) Pressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-002).
(3) Remove the WARNING NOTICE(S).
(4) Remove the container.

Subtask 29-10-00-790-050-A

C. Test
(1) Pressurize (with the electric pump) the Blue hydraulic system (Ref. AMM TASK 29-10-00-863-003).
(2) Make sure there are no leaks from the filter assembly, and that the clogging indicator stays in.
(3) If the clogging indicator comes out, push it in to set it again. If it will not stay in, do the trouble-shooting of the filter assembly to find the cause.
(4) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).

5. Close-up
Subtask 29-10-00-410-061-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 195BB.

[Rev.10 from 2021] 2026.04.01 00:13:56 UTC