32-00-30
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(4) S 862-079Make sure that the main gear ground door release handle is in the DOORS OPEN position.
(5) S 092-080Remove wing gear door locks as shown (Fig. 205).
S 432-081
CAUTION: AFTER YOU INSTALL THE BODY GEAR DOOR LOCKS YOU MUST NOT OPERATE
_______ THE WING GEAR DOORS. THE BODY GEAR DOOR LOCKS ARE IN THE WAY OF THE WING GEAR DOOR OPERATION AREA.
(6) Connect the operator rods to the body gear door (Ref Connect Body Gear Door Operator Rods) or remove door locks (Ref Remove Body Gear Door Locks) if necessary.
S 862-137
CAUTION: MAKE SURE THE SHOCK STRUTS (OLE0S) FOR THE BODY
_______ GEAR HAVE THE CORRECT MINIMUM X DEMINSION BEFORE YOU CLOSE THE GEAR DOORS. IF THE SHOCK STRUTS DO NOT HAVE THE CORRECT MINIMUM X DEMINSION THE BODY GEAR DOORS CAN HIT THE TIRES WHEN YOU CLOSE THE DOORS.
(7)
Pressurize hydraulic system No. 1 (if you must close the body gear doors) (AMM 29-11-00/201).
S 862-121
(8)
Pressurize hydraulic system No. 4 (AMM 29-11-00/201).
S 862-122
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.
CAUTION: AFTER YOU INSTALL THE BODY GEAR DOOR LOCKS YOU MUST NOT OPERATE
_______ THE WING GEAR DOORS. THE BODY GEAR DOOR LOCKS ARE IN THE WAY OF THE WING GEAR DOOR OPERATION AREA.
(9) Move the ground release handle for the main landing gear to the DOORS CLOSED position.
NOTE: This will close the wing gear doors, and body gear doors if
____ necessary.
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A
747-400 MAINTENANCE MANUAL
S 862-123
(10) Release the pressure from hydraulic system No. 1 and No. 4 (AMM 09-11-00/201).
TASK 32-00-30-092-086
14. Body Landing Gear Door Lock Removal
___________________________________
A. Special Tools and Equipment
(1)
2MIT65B80174 - Body 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
137 Body Landing Gear Wheel Well, LH
138 Body Landing Gear Wheel Well, RH
D.
Procedure (Fig. 206)
S 492-087
(1) Make sure that you install ground locks in the landing gear (AMM 09-11-00/201).
S 862-088
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 862-089
(3)
Make sure that the main gear ground door release handle is in the DOORS OPEN position.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-00-30
ALL ú ú 01 Page 229 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 092-090
(4) Remove the body gear door lock as shown (Fig. 206).
S 432-091
(5) Connect the operator rods to the wing gear doors (Ref Connect Wing
Gear Door Operator Rods) or remove door locks (Ref Remove Wing Gear
Door Locks) if necessary.
S 862-138
CAUTION:_______ MAKE SURE THE SHOCK STRUTS (OLE0S) FOR THE BODY
GEAR HAVE THE CORRECT MINIMUM X DEMINSION BEFORE
YOU CLOSE THE GEAR DOORS. IF THE SHOCK STRUTS DO
NOT HAVE THE CORRECT MINIMUM X DEMINSION THE BODY
GEAR DOORS CAN HIT THE TIRES WHEN YOU CLOSE THE
DOORS.
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