D. Access
(1) Location Zones 143 Left MLG Wheel Well 144 Right MLG Wheel Well 550/650 Wing Trailing Edge - Aft of Rear Spar and Inboard of
Spoiler No. 4 (Left) 9 (Right) 560/660 Wing Trailing Edge - Aft of Rear Spar and Outboard of Spoiler No. 5 (Left) 8 (Right)
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757 MAINTENANCE MANUAL
E. Prepare for the Servicing
S 413-013
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 863-273
(2)
Pressurize the left hydraulic system (AMM 29-11-00/201).
S 863-011
(3)
Move the flap control lever to the 30 unit detent.
S 213-012
(4)
Make sure the trailing edge (TE) flaps and leading edge (LE) slats are in the fully extended position.
S 493-003
(5)
Attach a DO-NOT-OPERATE tag to the flap control lever.
S 213-014
(6)
Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
S 493-015
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 863-016
(8)
If the left hydraulic system is pressurized, remove the pressure from the left hydraulic system (AMM 29-11-00/201).
S 863-017
(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 863-018
(10) Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11B18, WARN ELEX B
(b)
11D31, HYDRAULICS PTU CONT
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757 MAINTENANCE MANUAL
(c)
11H23, FLAP/SLAT ALTN DR SHUTOFF ARM
(d)
11J18, FLAP LOAD RELIEF
(e)
11J33, WARN ELEX A
F. Lubrication for the Flap Drive Transmissions.
NOTE: The procedure to fill the transmission with oil is located in
____
AMM 12-13-06/301.
S 643-232
CAUTION:_______USE A HAND PUMP TO LUBRICATE BALLSCREW. A PRESSURE PUMP CAN CAUSE DAMAGE TO THE SEAL.
(1)
Lubricate the ballscrews (Fig. 307).
S 643-233
(2)
Lubricate the universal joints (Fig. 308).
G. Put the Airplane Back to Its Usual Condition
S 863-274
(1)
Pressurize the left hydraulic system (AMM 29-11-00/201).
S 863-024
(2)
Move the flap control lever to the zero (FLAPS UP) detent.
S 213-025
(3)
Make sure that the TE flaps and LE slats move to the fully retracted position.
S 093-026
(4)
Remove the DO-NOT-OPERATE tag from the flap control lever, if installed.
S 863-027
(5)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P6 panel:
(a)
6D20, ALTN SLAT PWR
(b)
6D23, ALTN FLAP PWR
S 863-028
(6) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:
(a)
11B18, WARN ELEX B
(b)
11D31, HYDRAULICS PTU CONT
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