(2)
Open the TE fairing doors
(3)
Lubricate the fittings on the journal bearings of the spring beam and the spherical bearings
(4)
The installation of the access doors on the inboard struts
(5)
Close the TE fairing doors
C. On the inboard nacelle struts, lubricate only the strut-to-wing attach fittings.
D. On the outboard nacelle struts, lubricate the strut-to-wing attach fittings and the spring beam fittings.
TASK 12-21-33-643-001
2. Lubricate the Strut-to-Wing Fittings____________________________________
A. Consumable Materials
(1) D00633 Grease - BMS 3-33 (Preferred)
D00015 Grease - BMS 3-24
B. References
(1)
AMM 27-81-00/201 Leading Edge Flaps
(2)
AMM 54-62-00/201 Nacelle Strut Access Panels
C. Access
(1) Location Zone
452 Nacelle Strut 1 - Torque Box
454 Nacelle Strut 1 - Aft Fairing
462 Nacelle Strut 2 - Torque Box
464 Nacelle Strut 2 - Aft Fairing
472 Nacelle Strut 3 - Torque Box
474 Nacelle Strut 3 - Aft Fairing
482 Nacelle Strut 4 - Torque Box
484 Nacelle Strut 4 - Aft Fairing
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747-400
MAINTENANCE MANUAL
(2) Access Panel
454 Trailing Edge Fairing Door - Nacelle Strut 1
464 Trailing Edge Fairing Door - Nacelle Strut 2
474 Trailing Edge Fairing Door - Nacelle Strut 3
484 Trailing Edge Fairing Door - Nacelle Strut 4
D. Procedure
S 493-021
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL
_______ THE LE FLAP SAFETY LOCK. THE LE FLAPS CAN MOVE QUICKLY IF YOU DO NOT INSTALL THE SAFETY LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1)
Do this task: Leading Edge Flap Retraction and Safety Lock
Installation (AMM 27-81-00/201).
S 013-012
(2)
Open the TE fairing doors (AMM 54-62-00/201).
S 013-028
(3)
On inboard struts, remove the diagonal brace lubrication access.
S 643-013
(4)
Put grease into the fuse pin fitting of the spring beam (on wing attach fitting).
(a)
Add grease until it comes out from the sides of the fuse pin joint.
(b)
Clean the unwanted grease from around the fuse pin joint.
S 643-014
(5) Put grease into the fitting of the aft fuse pin on the diagonal brace.
(a)
Add grease until it comes out from the sides of the fuse pin joint.
(b)
Clean the unwanted grease from around the fuse pin joint.
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747-400 MAINTENANCE MANUAL
S 093-029
CAUTION: REMOVE ALL OF THE TOOLS, AND LOOSE UNWANTED MATERIAL IN THE
_______ STRUT. THESE COULD CAUSE A BLOCKAGE TO THE STRUT DRAIN SYSTEM.
(6)
Remove the tools, and loose unwanted material from the strut before you install the access doors.
S 413-018
(7)
On inboard struts, install the diagonal brace lubrication access.
S 413-019
(8)
Close the TE fairing doors (AMM 54-62-00/201).
S 093-030
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
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