3. Job Set-up
__________ Subtask 32-33-14-860-051
A. Aircraft Maintenance Configuration
(1)
Make sure that the ground service network is energized
(Ref. TASK 24-42-00-861-001).
(2)
Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(3)
Make sure that the reservoir of the Green hydraulic system is depressurized. (Ref. TASK 29-14-00-614-001).
(4)
Make sure that the NLG doors are open (Ref. TASK 32-22-00-010-001).
(5)
Make sure that the access platform is in position below the vent valve, in zone 123.
(6)
Make sure that the warning notice(s) are in position to tell persons not to pressurize the Green hydraulic system: - on the panel 40VU in the cockpit, - on the ground service panel of the Green hydraulic system, access
door 197CB.
(7)
In the cockpit, on the panel 400VU make sure that the warning notice(s) is are in position to tell persons not to operate the landing gear control lever.
(8)
Make sure that the safety devices are installed:
- on the Nose Landing Gear (Ref. TASK 32-00-00-481-001)
- on the NLG doors (Ref. TASK 32-00-00-481-002).
(9)
Make sure that the container is in position below the vent valve (2532GM).
4. Procedure
_________
(Ref. Fig. 401/TASK 32-33-14-991-001) Subtask 32-33-14-420-050
A. Installation of the Vent Valve (20) WARNING : MAKE SURE THAT THE NLG DOWNLOCK SAFETY PIN AND THE TWO DOOR
_______
SAFETY PINS ARE INSTALLED.
(1) Clean the connecting components with CLEANING AGENTS (Material No. 11-002) and dry them with dry filtered compressed-air.
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R R (2) Apply a thin layer of COMMON GREASE (Material No. 04-004) or COMMON GREASE (Material No. 04-022) on the fasteners.
R R R R NOTE : Do not mix Material No. 04-004 with Material No. 04-022. You____ can use Material No. 04-022 as an alternative to Material No. 04-004. Clean and degrease the parts before you use Material No. 04-022.
(3) Put the vent valve (20) in position and install the bolts (24).
(4) Install the washers (19) and the nuts (18).
(5) TORQUE the nuts (18) to between 0.3 and 0.4 m.daN (26.54 and 35.39 lbf.in).
(6) Safety the nuts (18) with the new cotter pins (17).
(7) Install the lever (6) on the vent valve (20).
(8) Install the bolt (10), the washer (25) and the nut (26). Tighten the nut (26) and safety it with the new cotter pin (27)
(9) Install the reducer (12) with the new packing (11).
(10) TORQUE the reducer (12) to between 1.63 and 1.75 m.daN (12.02 and 12.90 lbf.ft).
(11) Install the reducers (15) and (22) with the new packing (16) and the new packing (21).
(12) TORQUE the reducers (15) and (22) to between 3.47 and 3.58 m.daN (25.58 and 26.40 lbf.ft).
(13) Remove the blanking plugs and connect the hydraulic lines (13), (14) and (23).
(14) TORQUE the hydraulic line (13) to between 1.5 and 1.7 m.daN (11.06 and 12.53 lbf.ft).
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(15) TORQUE the hydraulic lines (14) and (23) to between 2.9 and 3.2 m.daN
(21.38 and 23.59 lbf.ft). Subtask 32-33-14-820-050
B. Adjustment of the Mechanical Linkage
(1)
Install the RIGGING PIN (98A32301000000) (28) in the lever (6).
(2)
Install the PIN, RIGGING - RUDDER CONTROL (98A27901002000) (29) in the output bellcrank of the mechanical assembly of the free-fall actuator support. This is to make sure that the mechanical linkage is in the 0 position.
(3)
Engage the rod (4) in the fork of the lever (6) and make sure that the holes are aligned. Adjust the length of the rod if necessary:
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