(3)
AMM 32-00-15/201, Landing Gear Door Locks
(4)
AMM 32-00-20/201, Landing Gear Downlocks
C. Access
(1) Location Zones
143 Left MLG Wheel Well
144 Right MLG Wheel Well
D. Prepare for Service
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A
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MAINTENANCE MANUAL
S 413-125
CAUTION:_______MAKE SURE THE ENGINE-FAN DUCT-COWLING IS CLOSED. IF THE ENGINE-FAN DUCT-COWLING IS NOT CLOSED POSSIBLE DAMAGE COULD OCCUR TO EQUIPMENT.
(1)
Close the engine-fan duct-cowling, if open.
S 863-277
(2)
Pressurize the left hydraulic system (AMM 29-11-00/201).
S 863-122
(3)
Move the flap control lever to the 30 unit detent.
S 213-123
(4)
Make sure the trailing edge (TE) flaps and leading edge (LE) slats are in the fully extended position.
S 493-124
(5)
Attach a DO-NOT-OPERATE tag to the flap control lever.
S 213-126
(6)
Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
S 493-127
WARNING: USE THE PROCEDURE IN AMM 32-00-15 TO INSTALL THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(7)
Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).
S 863-128
(8)
If the left hydraulic system is pressurized, remove the pressure from the left hydraulic system (AMM 29-11-00/201).
S 863-129
(9)
Open these circuit breakers on the main power distribution panel, P6, and attach DO-NOT-CLOSE tags:
(a)
6D20, ALTN SLAT PWR
(b)
6D23, ALTN FLAP PWR
S 863-130
(10) Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:
(a) 11B18, WARN ELEX B
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757 MAINTENANCE MANUAL
(b)
11D31, HYDRAULICS PTU CONT
(c)
11H23, FLAP/SLAT ALTN DR SHUTOFF ARM
(d)
11J18, FLAP LOAD RELIEF
(e)
11J33, WARN ELEX A
E. Lubrication for the TE Flap PDU (Fig. 303)
S 643-135
(1)
Make sure the torque tube splined couplings are lubricated.
S 643-136
(2)
Lubricate the TE Flap PDU.
F. Lubrication for the Internal Gears of the TE Flap PDU (Fig. 303)
S 643-290
CAUTION: AIRPLANES WITH -14 OR SUBSEQUENT PDU'S;
_______ USE ONLY MIL-G-21164 GREASE TO LUBRICATE THE PDU. THE OPTIONAL GREASE (MIL-G-23827) CAN CAUSE DAMAGE TO THE INTERNAL GEARS IN THE PDU.
(1) Lubricate the Internal Gears (all except the worm wheel for the TE flap PDU) with the steps that follow:
(a)
Move the manual override lever on the TE flap PDU bypass valve to the bypass position (POS 1).
(b)
Remove the access covers and drain covers as necessary.
(c)
Turn the torque tube, and at the same time, lubricate the gear teeth by hand with the steps that follow:
1) Fill the gear teeth with grease.
NOTE: Approximately two turns of the torque tube are
____ necessary to make sure the grease is transmitted to all the teeth on the TE flap PDU.
(d)
Replace the access covers and drain covers.
(e)
Move the manual override lever on the TE flap PDU bypass valve to the usual position (POS 2).
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