(1)
Plastic tool to cut seal ring
(2)
Drip tray with 25 gallon minimum capacity
(3)
Hydraulic source capable of supplying independently controlled fluid at 2000 psi to three places at the same time.
D.
Consumable Materials
(1)
D00070 Oil, Hydraulic, Petroleum Base, MIL-H-5606
(2)
D00589 Lubricant Hydraulic Assembly AFS-682 (Preferred)
(3)
D00250 Petrolatum VV-P-236 (Optional)
(4)
G01395 Compound - Corrosion Inhibition, BMS 3-27, Mastinox 6856K
E.
References
(1)
AMM 07-11-03/201, Jacking Airplane Axles
(2)
AMM 09-11-00/201, Towing
(3)
AMM 12-15-03/301, Wing Landing Gear Shock Strut
(4)
AMM 12-15-04/301, Body Landing Gear Shock Strut
(5)
AMM 12-15-05/301, Nose Landing Gear Shock Strut
(6)
AMM 29-11-00/201, Main Hydraulic Suppply System
(7)
AMM 32-00-30/201, Landing Gear Door Locks
(8)
AMM 32-11-02/301, Wing Gear Shock Strut
(9)
AIPC 32-11-02 Fig. 2
F.
Access
(1)
Location Zone
735 Wing Landing Gear, LH
745 Wing Landing Gear, RH
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32-11-02
ALL ú ú 01A Page 830 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
G. Prepare for the procedure
S 588-068
(1) Park the airplane in the level location after move it straight for a short distance to prevent the gear windup.
S 498-105
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.
(2) Install the ground locks in all landing gear (AMM 09-11-00/201).
S 498-106
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.
(3)
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
S 498-107
(4)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (Ref 32-00-30/201).
S 048-071
(5)
Open the actuator bleed valve to remove the hydraulic pressure from the system No.1.
(a)
Stop the truck positioning actuator on the strut.
S 688-072
WARNING: DO NOT REMOVE THE VALVE BODY UNLESS DEFLATE THE SHOCK STRUT
_______ FULLY. THE AIR PRESSURE CAN BLOW THE VALVE OUT AND CAUSE INJURY TO PERSONS.
(6) Remove the air valve caps to deflate the shock struts and loosen the outer nut no more than two turns.
NOTE: The hydraulic fluid will have bubbles immediately
____ while you decrease the pressure to the ambient. Deflate the shock strut slowly to prevent the leak of fluid through the air valve.
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32-11-02
ALL ú ú 01A Page 831 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 688-073
(7)
Drain the shock strut for the left wing landing gear
(AMM 32-11-02/301).
(a)
Put a tray below the flow fuse (used as drain plug).
(b)
Make sure the shock strut has no pressure in it, then remove the flow fuse and drain the fluid.
S 948-074
CAUTION: USE ONLY THE TYPE OF HYDRAULIC FLUID SHOWN ON THE SHOCK STRUT
_______ NAMEPLATE FOR THE LANDING GEAR. DIFFERENT TYPES OF FLUID WILL CAUSE DAMAGE TO SEALS.
(8) Connect the hydraulic source that can supply fluid at 2000 psi to the nose and body landing gears at the same time.
S 588-075
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