-Pressurize the Green hydraulic system
-Operate the landing gear.
(2)
Open the right MLG door (Ref. TASK 32-12-00-010-001).
(3) Put the ACCESS PLATFORM 1M (3 FT) in position at zone 731(741). Subtask 32-31-19-860-053
B. Aircraft Maintenance Configuration
(1) Make sure that the Green hydraulic system is depressurized. (Ref. TASK 29-10-00-864-001)
4. Procedure
_________ Subtask 32-31-19-680-050
A. Put the Safety Valve back to the Usual Position after Operation
(Ref. Fig. 301/TASK 32-31-19-991-002)
(1)
Put a clean lint-free cloth MISCELLANEOUS (Material No. 19-003), below the safety valve (3).
(2)
Remove the blanking plug (1) from the bleed screw (2) of the safety valve (3).
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Safety Valve - NLG Door Closing/Opening - Location and Detail
Figure 301/TASK 32-31-19-991-002
1EFF : ALL 1 32-31-19Page 303 1 1 Nov 01/04 1 1 1CES 1
(3)
Remove and discard the lockwire from the bleed screw (2).
(4)
Connect one end of the bleed pipe to the bleed screw (2). Put the other end in a CONTAINER 1 L (1/4 USGAL) that contains the HYDRAULIC FLUIDS (Material No. 02-003).
(5)
Slowly open the bleed screw (2) to release the hydraulic fluid.
(6)
When the fluid flow stops, close the bleed screw (2).
(7)
Disconnect the bleed pipe and remove all the hydraulic fluid from the bleed screw (2) with the lint-free cloth.
(8)
Safety the bleed screw (2) with the corrosion-resitant steel lockwire, 0.8 mm (0.0314 in.) screw dia.
(9) Install the blanking plug (1). Subtask 32-31-19-710-052
B. Test
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Do the functional test of the safety valve (Ref. TASK 32-31-00-710-005).
(3)
Make sure that there is no hydraulic fluid leakage from the safety valve.
5. Close-up
________ Subtask 32-31-19-942-052
A. Close Access
(1)
Remove the access platform(s).
(2)
Close the right MLG door (Ref. TASK 32-12-00-410-001).
(3)
Remove the warning notice(s).
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_______________________________________________________________________________ TASK 32-31-19-000-001 Removal of the Safety Valves 2629GM/2630GM 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 blanking plugs
No specific circuit breaker(s) safety clip(s)
No specific warning notices
No specific access platform 1.5 m (4 ft. 11 in.)
No specific container 5 l (1.3208 USgal)
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B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R R R R 20-23-21-911-001 24-41-00-861-002 24-41-00-862-002 29-00-00-910-002 29-10-00-864-001 29-14-00-614-001 32-12-00-010-001 32-31-19-991-001-A Removal/Installation of the Bobbins from their Housings and Installation of O-rings, Square Seals, and Back-up Rings on the BobbinsEnergize the Aircraft Electrical Circuits from the External PowerDe-energize the Aircraft Electrical Circuits Supplied from the External PowerSafety Procedures of the Hydraulic SystemDepressurize the Green Hydraulic SystemDepressurization of the Hydraulic ReservoirsOpen the Main Gear Doors for Access Fig. 401
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