32-31-38-000-001 Removal of the MLG Door Swivel-Joint Assembly 2763GM
(2764GM) 57-26-21-000-001 Removal of the Secondary-Hinged-Fairing Attachment 32-12-00-991-011 Fig. 401 32-12-00-991-015 Fig. 402 32-12-00-991-009 Fig. 403 32-12-00-991-010 Fig. 404
3. Job Set-up
__________
Subtask 32-12-00-941-063
A. Safety Precautions
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(Ref. TASK 29-00-00-910-002)
(1)
Put the safety barriers in position.
(2)
On the panel 400VU:
-make sure that the landing-gear control-lever 6GA is in the DOWN position
-put a warning notice in position to tell persons not to operate the landing gear.
(3)
On the panel 110VU, make sure that the GRAVITY GEAR EXTN handle is folded into the center console.
R (4) Make sure the GROUND LOCK SLEEVE is installed on the applicable MLG R (Ref. TASK 32-00-00-481-001).
Subtask 32-12-00-860-056
B. Aircraft Maintenance Configuration
WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED
_______ BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
(1) Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
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(2) Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001).
Subtask 32-12-00-869-059
C. Flight Configuration Precautions
(1) Do the precautions for flight configuration (Ref. TASK 32-00-00-860-001) before you open the LGCIU circuit breakers.
Subtask 32-12-00-865-062
D. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY 4GG M36 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/CTL 3GG M35 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/CTL 1GG M34 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY 2GG M33 121VU HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD Q37 121VU HYDRAULIC/Y HYD/PUMP ENG2/CTL 3701GD Q36 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34
Subtask 32-12-00-010-057
R E. Get Access
R (1) Put the access platform in position below the applicable zone 128.
R (2) Open the access door 824.
R R (3) Put the access platform in position below the applicable zone 733(743).
4. Procedure_________
R Subtask 32-12-00-980-050
R A. Manual Operation
R R WARNING : CUT, REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK. LOOSE_______ LOCKWIRE CAN CUT OR BLIND YOU.
R (1) In the avionics compartment on the panel 188VU:
R R (a) Remove the lockwire from the safety cover of the L/G DOWN VMO/MMO SELECTION switch 22FP.
R (b) Set the L/G DOWN VMO/MMO SELECTION switch 22FP to L/G DOWN.
Subtask 32-12-00-020-060
R B. Removal of the MLG Door Assembly and Attaching Parts (Ref. Fig. 401/TASK 32-12-00-991-011, 402/TASK 32-12-00-991-015)
CAUTION : DO NOT CAUSE DAMAGE TO THE SURFACES. THE COMPONENTS ARE MADE OF_______ CARBONFIBER REINFORCED PLASTIC.
(1) Open the applicable MLG door (Ref. TASK 32-12-00-010-001).
(2) Remove the applicable MLG door assembly (Ref. TASK 32-12-11-000-001).
R R (3) Remove and retain all the nuts and bolts from the MLG door hinge attachment points (4).
(4) Remove and discard the cotter pins (1) from the nuts (2).
(5) Remove and retain the nuts (2), the washers (3), the bolts (6) and the bonding straps (5) from the door hinge attachment points (4).
(6) Remove the applicable MLG door-actuating cylinder (Ref. TASK 32-31-35-000-001).
(7) Remove the applicable MLG door swivel-joint assembly (Ref. TASK 32-31-38-000-001).
(8) Remove and retain the nuts (17), the bolts (14), the washers (15) and the clamps (16) from the flexible hoses (13).
(9) Disconnect the connectors (18) from the elbow connectors (19) and remove and retain the flexible hoses (13).
Bonding Straps to MLG Door Hinge Attachment Points - Removal/Installation Figure 401/TASK 32-12-00-991-011
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MLG Actuator Flexible Hoses - Removal/Installation Figure 402/TASK 32-12-00-991-015
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