(2)
Container - approximately 15 gallon capacity.
B.
References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 12-15-05/301, Nose Landing Gear Shock Strut
(3)
AMM 32-00-30/201, Landing Gear Door Locks
(4)
AIPC 32-21-01 Fig. 4
C.
Access
(1)
Location Zone
715 Nose Landing Gear
D.
Procedure
S 863-007
WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Install the ground locks in all landing gear (AMM 09-11-00/201).
S 493-009
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL
_______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2) Do this task: "Installation of the Door Locks on the Nose Landing Gear" (AMM 32-00-30/201).
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32-21-02
ALL ú ú 01 Page 301 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
(3) S 493-011Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
(4) S 493-010Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
(5) S 843-002Deflate the shock strut. (a) AIRPLANES WITH THE SHOCK STRUT PRESSURE GAGE; Remove the valve cap from the air valve on the pressure gage. (b) AIRPLANES WITHOUT THE SHOCK STRUT PRESSURE GAGE; Remove the valve cap from the air valve at the top of the shock strut.
WARNING:_______ DO NOT REMOVE THE VALVE BODY UNTIL YOU DEFLATE THE SHOCK STRUT. THE INTERNAL PRESSURE CAN BLOW THE VALVE OUT. IT CAN CAUSE INJURY TO THE PERSONS.
(c) Loosen the air valve nut two turns maximum and permit the weight of the airplane to compress the inner cylinder.
(6) S 843-004Drain the shock strut. (a) Remove the valve from the lower end of the outer cylinder and drain from that point (3 to 4 gallons). (b) Remove the assembly of the Green Band tube and the end fitting from the top end of the shock strut. (c) Install approximately 55 inches of plastic tubing into the port at top of the strut and drain (approximately 8 gallons).
NOTE:____ Cut the tube end at 45-60 degrees. It can help to put the tube through the top of the metering pin.
(7) S 863-005Do this task: "Nose Landing Gear Shock Strut Servicing (AMM 12-15-05/301).
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32-21-02
ALL ú ú 01 Page 302 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
NOSE LANDING GEAR SHOCK STRUT - REPAIRS
_______________________________________
1. General
_______
A. This procedure gives the seal replacement instructions for a one piece configuration. This configuration has the lower bearing and the seal carrier as a one piece assembly.
B. This procedure contains two tasks:
(1)
The replacement of the inner cylinder seals with the spare seals
(2)
The replacement of the inner cylinder seals and the spare seals.
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