Clean the Fluid in the Blue Hydraulic System

TASK 12-36-29-615-003-A
Clean the Fluid in the Blue Hydraulic System

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

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

1. Reason for the Job
To remove water, chlorinated solvent and particles from the hydraulic fluid of the Blue hydraulic system
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
HSPA181-380J	1	HYDRAULIC PURIFIER
HSPA181J	1	HYDRAULIC PURIFIER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
197EB, 197FB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
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 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
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)

3. Job Set-up
Subtask 12-36-29-860-093-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) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).
(3) Look at the quantity indicator on the hydraulic reservoir and make sure:

that the fluid level is correct, add fluid as necessary (Ref. AMM TASK 12-12-29-611-001).

(4) Look at the air pressure gage on the hydraulic reservoir and make sure:

That the air pressure in the reservoir of the Blue System is 50 psi, pressurize the hydraulic reservoir as necessary (Ref. AMM TASK 29-14-00-614-002).

(5) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 12-36-29-010-099-A

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

4. Procedure
Subtask 12-36-29-615-059-A

A. Clean the Fluid in the Blue Hydraulic System

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.

(1) Prepare the HSPA181-380J HYDRAULIC PURIFIER or the HSPA181J HYDRAULIC PURIFIER.
(2) Connect the HSPA181-380J HYDRAULIC PURIFIER or the HSPA181J HYDRAULIC PURIFIER to the aircraft connectors:

2006GM suction
2008GM delivery.

and do the cleaning procedure of the Blue hydraulic system.
(3) Disconnect the HSPA181-380J HYDRAULIC PURIFIER or the HSPA181J HYDRAULIC PURIFIER from the aircraft connectors.

Subtask 12-36-29-615-052-A

DELETED

Subtask 12-36-29-615-052-B

DELETED

5. Close-up
Subtask 12-36-29-860-094-A

A. Put the aircraft back to the serviceable condition.
(1) Look at the quantity indicator on the hydraulic reservoir and make sure:

That the fluid level is correct, add fluid as necessary (Ref. AMM TASK 12-12-29-611-001).

(2) Look at the air pressure gage on the hydraulic reservoir and make sure:

That the air pressure in the reservoir of the Blue System is 50 psi, pressurize the hydraulic reservoir as necessary (Ref. AMM TASK 29-14-00-614-002).

(3) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(4) Collect a fluid sample between 1 to 5 Flight Cycles after fluid replacement and send it for analysis (Ref. AMM TASK 12-32-29-281-001).

NOTE: The A/C can be released into service for 14 days, waiting for positive sampling results.

Subtask 12-36-29-410-086-A

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 197EB.
(3) Close the access door 197FB.

[Rev.10 from 2021] 2026.04.02 06:46:32 UTC