Reclamation of the Hydraulic Fluid in the Blue Hydraulic System

TASK 12-36-29-600-006-A
Reclamation of the Hydraulic Fluid in the Blue Hydraulic System

1. Reason for the Job
To decrease the particle contamination of the hydraulic fluid in the Blue hydraulic system if it is more than NSA307110 class 9.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
ALT29000001	1	HYD GRND PWR UNIT3000

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
195BB, 197EB, 197FB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-32-29-281-001-A	Analyze Hydraulic Fluid
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 29-00-00-910-002-A	Safety Procedures of the Hydraulic System
TASK 29-12-43-610-001-A	Servicing of the Electric-Pump Case-Drain Filter
TASK 29-12-44-610-001-A	Servicing of the LP-Filter
TASK 29-12-45-610-001-A	Servicing of the HP-Filter

3. Job Set-up
Subtask 12-36-29-860-119-A

A. Safety Precautions
(1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).

Subtask 12-36-29-010-082-A

B. Get Access
(1) Open the access door 197EB.

Subtask 12-36-29-860-118-A

C. Preparation for the Reclamation Procedure
(1) Connect the pressure hose of the ALT29000001 HYD GRND PWR UNIT3000 to the delivery connector 2008GM.
(2) Connect the return hose of the hydraulic power cart to the suction connector 2006GM.

4. Procedure
Subtask 12-36-29-960-065-A

A. Replacement of the Filter Elements
(1) Replace the element in the LP filter 2002GM (Ref. AMM TASK 29-12-44-610-001).
(2) Replace the element in the HP filter 2048GM (Ref. AMM TASK 29-12-45-610-001).
(3) Replace the element in the case drain filter 2084GM (Ref. AMM TASK 29-12-43-610-001).

Subtask 12-36-29-869-078-A

B. Reclamation Procedure

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.

(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Operate the hydraulic power cart.
(3) In the cockpit, operate the flight controls.
(a) On the panel 11VU, move the GND SPLRS ARMED lever to the FULL position and then to the RET position. Do this step 3 times.

NOTE: The spoilers 3 LH and RH operate.

(b) On the panel 18VU or 19VU, move the side stick fully to the left and then fully to the right. Do this step 3 times.

NOTE: The ailerons and spoilers 3 LH and RH operate.

NOTE: The elevators operate.

(d) At the captain or first officer position, push the LH pedal fully forward and then the RH pedal fully forward. Do this step 3 times.

NOTE: The rudder operates.

(e) On the panel 114VU, move the flap/slat lever to the FULL position and then to the 0 deg. position. Do this step 2 times.

NOTE: The slats operate.

(4) Stop the hydraulic power cart.

Subtask 12-36-29-281-052-A

C. Sampling Procedure
(1) Take a sample from the Blue hydraulic system and make an analysis (Ref. AMM TASK 12-32-29-281-001).
(2) If the particle contamination is more than NSA307110 class 9, do the procedure again.

Subtask 12-36-29-010-083-A

D. Open the access panels 195BB 197FB.

Subtask 12-36-29-869-073-A

E. Make sure that the clogging indicators on the filters 2002GM, 2048GM and 2084GM are in (the filter is not clogged).

5. Close-up
Subtask 12-36-29-860-117-A

A. Put the system back to the serviceable condition.
(1) Disconnect the pressure hose of the hydraulic power cart from the delivery connector 2008GM.
(2) Disconnect the return hose of the hydraulic power cart from the suction connector 2006GM.

Subtask 12-36-29-410-070-A

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access panel/doors 195BB 197FB 197EB.

Subtask 12-36-29-860-120-A

C. Put the aircraft back to the serviceable condition.
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(2) Remove the warning notices and safety barriers.
(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.02 06:10:40 UTC