Installation of the Fluid Sampling Valve of the Blue Hydraulic System

TASK 29-12-34-400-001-A
Installation of the Fluid Sampling Valve of 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: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 195
FIN: 2187GM

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	CONTAINER - HYDRAULIC FLUID RESISTANT
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	2	WARNING NOTICE(S)
No specific	Torque wrench: range to between 1.88 and 1.77 m.daN (13.86 and 13.05 lbf.ft )

B. Consumable Materials

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

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
195	HYDRAULIC COMPT AND FAIRINGS
195BB, 197EB

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	0-RING	AIPC 29-12-14-02-320

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
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
Fluid Sampling Valve on HP Manifold with P/N series 1554A9900

3. Job Set-up
Subtask 29-12-34-860-051-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) Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration.
(Ref. AMM TASK 29-00-00-864-001).
(3) Make sure that the reservoir of the Blue hydraulic system is depressurized.
(Ref. AMM TASK 29-14-00-614-001).
(4) Make sure that the access panel 195BB and the access door 197EB are open.
(5) Make sure that the CONTAINER - HYDRAULIC FLUID RESISTANT is in position below the HP manifold.
(6) Make sure that the WARNING NOTICE(S) are 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.

Subtask 29-12-34-865-051-A

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	HYD/HYD PWR/B WARN/& CTL	2702GJ	C12
121VU	HYDRAULIC/LOW/LVL/IND	1832GQ	N32
121VU	HYDRAULIC/HYD/QTY/IND	1831GQ	P35
123VU	B HYD/ELEC PUMP	2701GJ	AB09

4. Procedure
Subtask 29-12-34-420-050-B

A. Installation of the Fluid Sampling Valve

Fluid Sampling Valve on HP Manifold with P/N series 1554A9900

(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking plugs from the fluid sampling valve (1) and the manifold.
(4) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the threads of the fluid sampling valve (1) and to the new AIPC 29-12-14-02-320 0-RING (2).
(5) Put the O-ring (2) in position on the fluid sampling valve (1).
(6) Install the fluid sampling valve (1) on the manifold.
(7) TORQUE the fluid sampling valve (1) to between 1.88 and 1.77 m.daN (13.86 and 13.05 lbf.ft )

(8) Make sure that the protective cap is tight.

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.

(9) Safety the protective cap to the valve body and the valve body to the manifold with lockwire, corrosion-resistant steel, 0.8 mm (0.032 in.) dia.

Subtask 29-12-34-790-050-A

B. Test
(1) Remove the warning notices from the cockpit and the ground service panel.
(2) Pressurize the reservoir of the Blue hydraulic system (Ref. AMM TASK 29-14-00-614-001).
(3) Make sure that the fluid level in the reservoir of the Blue hydraulic system is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001).
(4) Pressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-863-003).
(5) Examine the connection of the fluid sampling valve (1) and the manifold and make sure that there are no leaks.
(6) Depressurize the Blue hydraulic system (Ref. AMM TASK 29-10-00-864-003).

5. Close-up
Subtask 29-12-34-410-050-A

A. Close Access
(1) Remove the container.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Close the access panel 195BB.
(4) Close the access door 197EB.

Subtask 29-12-34-865-052-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	HYD/HYD PWR/B WARN/& CTL	2702GJ	C12
121VU	HYDRAULIC/LOW/LVL/IND	1832GQ	N32
121VU	HYDRAULIC/HYD/QTY/IND	1831GQ	P35
123VU	B HYD/ELEC PUMP	2701GJ	AB09

[Rev.10 from 2021] 2026.04.01 00:19:08 UTC