(b)
Apply the HYDRAULIC FLUIDS (Material No. 02-003) to the seals of the drum-equipped assemblies (2).
(6) Apply the zinc chromate putty, SPECIAL MATERIALS (Material No. 05-002) to the threads of the bolts (4) and (5).
Subtask 32-51-21-420-050
B. Installation of the Safety Valve
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Install the new drum-equipped assemblies (2) in the safety valve (6) (Ref. TASK 20-23-21-911-001).
(3)
Carefully install the safety valve (6) on the manifold (1).
(4)
Install the washers (3) and bolts (4) and (5).
(5)
TORQUE the bolts (4) and (5) to between 0.7 and 0.8 m.daN (61.94 and
70.79 lbf.in).
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C. Preparation for Test
(1)
Connect the PTU isolation coupling (Ref. TASK 29-23-00-860-002).
(2)
If necessary, fill the reservoir of the Yellow hydraulic system to the correct level (Ref. TASK 12-12-29-611-001).
Subtask 32-51-21-865-052
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1GG, 2GG, 3GG, 4GG, 61GG, 70GG, 71GG, 3700GD, 3701GD, 3801GX, 3802GX, 3803GX.
Subtask 32-51-21-710-050
E. Test
(1)
Do an functional test of the nose wheel steering (Ref. TASK 32-51-00-720-003).
(2)
Make sure that there is no hydraulic fluid leakage from the safety valve .
NOTE : Leaks are not permitted.
____
________
5. Close-up
Subtask 32-51-21-410-050
A. Close Access
(1)
Remove the container.
(2)
Remove the warning notice(s).
(3)
Remove the access platform(s).
(4)
Make sure that the work area is clean and clear of tool(s) and other items.
(5)
Close the right MLG door (Ref. TASK 32-12-00-410-001).
(6)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
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__________________________________
TASK 32-51-22-000-001
Removal of the Check Valve 2902GM
WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific 1 ACCESS PLATFORM 2M (6 FT)
No specific 1 CONTAINER 5 L(1 1/2 USGAL)
No specific 2 WARNING NOTICE
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-864-002 Depressurize the Yellow Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the
Yellow Electric Pump 32-51-22-991-001 Fig. 401
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