12-21-01
ALL ú ú 01 Page 312 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
TASK 12-21-01-603-006
3. Lubricate the Body Landing Gear and Doors (Fig. 301, 306 through 310)
_________________________________________
A. Standard Tools and Equipment
(1)
ZERK gun (grease gun)
(2)
Flush gun (grease gun)
(3)
Oil Spray Can
B. Consumable Materials
(1)
B00184 Solvent - BMS 11-7
(2)
B01000 Solvent - General Cleaning of Metal (Series 80) (AMM 20-30-80)
(3)
D00633 Grease - BMS 3-33 (preferred)
(4)
D00013 Grease - MIL-G-23827 (optional)
(5)
D00528 Grease - Royco 11MS (recommended for Brake Rod and Pivot Pin).
(6)
D00165 Grease - Aeroshell 22 (preferred)
(7)
D00378 Grease - Mobil 28 (optional)
(8)
D50005 Grease - Mobil Aviation Grease SHC 100 (optional)
(9)
G00009 Compound - Corrosion Inhibiting, LPS-3 per BMS 3-23 (Preferred)
(10)
C00755 Compound - Corrosion Inhibiting, AV-25 per BMS 3-26 (Optional)
(11)
A00359 Sealant - BMS 5-95
C. References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 32-00-30/201, Landing Gear Door Locks
D. Access
(1) Location Zone 137 Body Landing Gear Wheel Well, LH 138 Body Landing Gear Wheel Well, RH 751 Body Landing Gear Door, Aft, Inboard, LH 752 Body Landing Gear Door, Aft, Outboard, LH 753 Body Landing Gear Door, Forward, Inboard, LH 754 Body Landing Gear Door, Forward, Outboard, LH 755 Body Landing Gear, LH 761 Body Landing Gear Door, Aft, Inboard, RH 762 Body Landing Gear Door, Aft, Outboard, RH 763 Body Landing Gear Door, Forward, Inboard, RH 764 Body Landing Gear Door, Forward, Outboard, RH 765 Body Landing Gear, RH
E. Procedure
S 213-090
WARNING: MAKE SURE THE GROUND LOCKS ARE INSTALLED IN ALL OF THE LANDING
_______ GEAR. WITHOUT THE GROUND LOCKS, THE LANDING GEAR CAN RETRACT AND CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Make sure the ground locks are installed in the nose and main landing gear (AMM 09-11-00/201).
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12-21-01
ALL ú ú 01 Page 313 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 413-091
WARNING:_______OBEY THE INSTALLATION PROCEDURE FOR THE DOOR LOCKS. THE DOORS CAN OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(2) Open the doors for the wing and body landing gears and install the door locks (AMM 32-00-30/201).
S 643-009
WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON YOUR
_______ SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. SOLVENTS MAY BE FLAMMABLE OR HARMFUL TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
CAUTION:_______BE CAREFUL WHEN YOU REMOVE THE GREASE GUN. YOU CAN EASILY CAUSE DAMAGE TO THE LUBRICATION FITTINGS.
(3)
Lubricate the body landing gear, the doors, and the uplock mechanism (Fig. 306 through Fig. 310).
S 623-109
(4)
Apply the Corrosion Inhibiting Compound at each location shown (Fig. 307 and 308).
NOTE: In areas identified for application of LPS-3 the witness
____ line may not be applied. All witness lines are applied to be easilly seen while performing normal servicing. If you can not see a witness line and you can see a fillet seal then you must visually inspect the seal for damage if physically possible. In areas where you can not visually inspect the fillet seal then check the immediate area for signs of corrosion.
(a) JOINTS THAT HAVE BUSHING FILLET SEALS; Do the steps that follow: 1) If there are no cracks in the sealant, no more steps are
necessary (cracks in the paint are OK). 2) If there are cracks in the sealant, but the cracks do not go to the lug surface:
NOTE: You can remove a section of sealant to see the
____
the depth of the crack.
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