Subtask 32-12-00-010-052
B. Get Access
(1)
Put the access platform below the applicable zone 730(740).
(2)
Open the applicable main gear door (Ref. TASK 32-12-00-010-001).
(3)
Make sure that the GROUND LOCK SLEEVE (460005835) is on the applicable main gear door actuator.
Subtask 32-12-00-860-050
C. Aircraft Maintenance Configuration
(1)
Disconnect the isolation coupling of the PTU (Ref. TASK 29-23-00-860-001).
(2)
Make sure that the Green and Yellow hydraulic system are depressurized (Ref. TASK 29-00-00-864-001) and (Ref. TASK 29-10-00-864-002).
(3)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
4. Procedure
_________ (Ref. Fig. 501/TASK 32-12-00-991-004) Subtask 32-12-00-820-050 R A. Adjustment of the MLG Ground-Opening System
(1) Preparation for adjustment WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL
_______ SURFACES ARE CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
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MLG Door Ground-Opening System
Figure 501/TASK 32-12-00-991-004
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(a)
Pressurize the Green hydraulic system (Ref. TASK 29-10-00-863-001).
(b)
Remove the pin (2), put the handle (1) to the CLOSED position and then install the pin (2).
(c)
Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001).
(d)
Depressurize the Green hydraulic reservoir (Ref. TASK 29-14-00-614-001).
NOTE : If you installed a MLG Door Ground-Opening Bypass-Valve,
____ the eye-end (4) is disconnected.
(e) If you did not install a MLG Door Ground-Opening Bypass-Valve: 1 Remove and discard the cotter pin (7).
_ 2 Remove the nut (8), the washer (6), the bush (9) and the bolt
_
(10).
R (f) Install the RIGGING PIN (98DNSA20208040) in the rear face of the by-pass valve (21) at location 'X'.
(2) Adjustment procedure WARNING : WEAR GOGGLES WHEN YOU REMOVE OR INSTALL THE LOCKWIRE. CUT,
_______ REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK. LOOSE LOCKWIRE CAN CUT OR BLIND YOU.
(a) On the cable (3): 1 Remove and discard the lockwire and loosen the nut (5).
_ 2 Adjust the eye-end (4) until it aligns with the hole in the
_ lever (11). Make sure that the eye-end is in safety (you can see threads in the witness-hole of the eye-end).
3 Hold the eye-end (4) and tighten the nut (5).
_ 4 Safety the nut (5) with lockwire, corrosion resistant steel
_
0.8mm (0.03in) dia.
5 Put the eye-end (4) in position and install the bush (9), the
_ bolt (10), the washer (6) and the nut (8). Safety the nut (8) R with a new cotter pin (7).
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6 Remove and discard the cotter pins (12). Remove the nuts (13),
_ the washers (14), the bushes (18), the bolts (19) and then the rod (16).
R 7_Install the RIGGING PIN (98DNSA20208040) in the rear face of the uplock (20) at location 'Y'.
(b) On the rod (15):
1 Remove and discard the lockwire and loosen the nuts (16).
_
2 Adjust the eye-ends (17) until they align with their related
_ attachment holes in the uplock (20) and the by-pass valve (21). Make sure that the eye-ends are in safety (you can see threads in the witness-holes of the eye-ends).
3 Hold the eye-ends (17) and tighten the locknuts (16). Safety
_ the locknuts (16) with lockwire, corrosion resistant steel 0.8mm (0.03in) dia.
4 Application of special material.
_
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER
_______ SPECIAL MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
a Apply SPECIAL MATERIALS (Material No. 05-002) to the bushes
_ (18), the bolts (19), the washers (14) and the nuts (13).
5 Put the rod (15) in position and install the bushes (18), the
_ bolts (19), the washers (14) and the nuts (13). Safety each nut (13) with a new cotter pin (12).
R 6_ Remove the RIGGING PIN from the by-pass valve (21) and theR uplock (20).
7 Remove the pin (2), put the handle (1) to the OPEN position
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