(b)
Disconnect the filling hose (11) from the FILLING ASSEMBLY.
(c)
Open the control valves (20) and (13). Open the control valve of the nitrogen source to release nitrogen pressure and clean the system.
(d)
Close the control valves (20) and (13).
(e)
Connect the filling hose (11) to the FILLING ASSEMBLY.
(f)
Use a thermometer (-45 Deg. C to 70 Deg. C (-49 Deg. F to 158 Deg. F)) to measure and record the temperature of the NLG adjacent to the charging valve.
(g)
Open the control valve (20).
(h)
Slowly open the charging valve (6) to increase the nitrogen pressure in the shock absorber. Let the shock absorber gradually inflate until the dimension H is correct and agrees with:
-
the temperature of the NLG recorded in step (f)
-
the nitrogen pressure (Ref. TASK 12-14-32-614-004).
(i)
Close the control valve of the nitrogen supply, the charging valve (6) and the control valve (20). Open the control valve (13) to release the nitrogen from the filling system.
(j)
Remove the filling hose (11) from the FILLING ASSEMBLY.
(k)
Remove the FILLING ASSEMBLY from the charging valve (6).
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(l) TORQUE the charging valve (6) to between 0.5 and 0.8 m.daN (44.24 and 70.79 lbf.in) and examine for leaks.
(m) Install the blanking cap (7) on the charging valve (6). Subtask 12-12-32-780-050
C. Test
(1)
Move the aircraft to make the shock absorber move inside its leg. NOTE : It is possible that the shock absorber is held in an incorrect
____
position because of friction loads.
(2)
Do the pressure check of the shock absorber (Ref. TASK 12-14-32-614-004).
5. Close-up
________ Subtask 12-12-32-942-050
A. Removal of Support Equipment
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Remove the access platform. Subtask 12-12-32-410-050
B. Close Access
(1) Remove the SAFETY PIN - NLG DOOR from the linkage of each forward NLG door (Ref. TASK 32-00-00-481-001).
(2)
Close the NLG doors (Ref. TASK 32-22-00-410-001). Subtask 12-12-32-942-051
C. Removal of Equipment
(1)
Remove the safety barriers.
(2)
Disassemble the standard charging equipment.
(3)
Remove the warning notice(s).
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(4) Remove the ground support and maintenance equipment, the special and
standard tools and all other items.
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TASK 12-12-32-611-005
Replenishment of the NLG Shock Absorber (Aircraft on Jacks)
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 : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
WARNING : DO NOT PUT COMPRESSED GAS IN CONTACT WITH YOUR SKIN. THE GAS CAN GO
_______ THROUGH THE SKIN AND MAKE BUBBLES IN THE BLOOD. THIS CONDITION CAN KILL YOU.
1. Reason for the Job
__________________
NOTE : As an alternative, the NLG Shock Absorber can be replenished with the
____ aircraft weight on the ground (Ref. TASK 12-12-32-611-001).
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific approved nitrogen supply No specific hydraulic source No specific safety barriers No specific standard charging equipment No specific thermometer (-45 Deg. C to 70 Deg. C (-49 Deg. F to
158 Deg. F))
No specific warning notice
No specific drain container 15 l (3.9625 USgal)
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