WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE DOOR
_______ OPERATION AREA. FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(9) Move the ground release handle for the main landing gear to the DOORS CLOSED position.
NOTE: This will close the body gear doors, and wing gear doors if
____ necessary.
S 862-086
(10) Remove pressure from hydraulic system No. 1 and No. 4 (AMM 29-11-00/201).
TASK 32-00-30-092-068
12. Nose Landing Gear Door Lock Removal
___________________________________
A. Special Tools and Equipment
(1) 11MIT65B04012 - Nose Landing Gear Door Lock (10MIT65B04012 alternate, rework from 7MIT65b04012)
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32-00-30
ALL ú ú 01 Page 225 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
B. References
(1)
09-11-00/201, Towing
(2)
29-11-00/201, Main Hydraulic Supply System
C.
Procedure (Fig. 204)
S 492-069
(1) Make sure that you install the ground locks on the landing gear (AMM 09-11-00/201).
S 862-070
WARNING: DO NOT TRY TO REMOVE GEAR DOOR LOCKS WHEN THERE IS PRESSURE TO
_______ THE HYDRAULIC SYSTEMS. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(2)
Make sure that there is no pressure to hydraulic system No. 1 (AMM 29-11-00/201).
S 862-071
(3)
Make sure the ground release handle for the nose gear doors is in the DOORS OPEN position.
S 092-072
(4)
Remove the door lock from the nose gear as shown (Fig. 204).
S 862-073
(5)
Pressurize hydraulic system No. 1 (AMM 29-11-00/201).
S 862-074
WARNING: MAKE SURE THAT ALL PERSONS AND EQUIPMENT ARE CLEAR OF THE DOOR
_______ OPERATION AREA. FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(6) Move the ground release handle for the nose gear to the DOORS CLOSED position.
NOTE: This will close the nose gear doors.
____
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32-00-30
ALL ú ú 01 Page 226 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 862-075
(7) Release pressure from hydraulic system No. 1 (AMM 29-11-00/201).
TASK 32-00-30-092-076
13. Wing Landing Gear Door Lock Removal
___________________________________
A. Special Tools and Equipment
(1)
3MIT65B80190 - Wing Landing Gear Door Lock
B.
References
(1)
09-11-00/201, Towing
(2)
29-11-00/201, Main Hydraulic Supply System
C.
Access
(1)
Location Zone
731 Wing Landing Gear Door, Forward, LH
741 Wing Landing Gear Door, Forward, RH
D.
Procedure (Fig. 205)
S 222-134
CAUTION: MAKE SURE THAT YOU DO NOT MOVE OR DAMAGE THE WING GEAR TRUCK
_______ SENSORS OR TARGET BRACKET. IF THE TARGET BRACKET OR SENSORS ARE MOVED, THEN THE AIRPLANE SYSTEMS MAY NOT RECOGNIZE AN IN-AIR CONDITION.
(1)
If the sensor or target bracket is moved or damaged, then do the task to measure the wing landing gear truck sensor clearance (AMM 32-61-22/201).
S 492-077
(2)
Make sure that you install ground locks for all landing gear (AMM 09-11-00/201).
S 862-126
WARNING: DO NOT TRY TO REMOVE GEAR DOOR LOCKS WHEN THERE IS PRESSURE TO
_______ THE HYDRAULIC SYSTEMS. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(3) Make sure that there is no pressure to hydraulic system No. 4 (AMM 09-11-00/201).
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