757 MAINTENANCE MANUAL
 TRAILING EDGE FLAP TRANSMISSION - SERVICING (OIL REPLENISHING)
______________________________________________________________
 1.  General
_______
 A.  This procedure contains one task to add oil to the trailing edge (TE) flap transmission.
 TASK 12-13-06-613-001
 2.  Add Oil to the TE Flap Transmission
___________________________________
 A.  Consumable Materials
 (1)  
Lubricating Fluid, Flap Transmission - Optional
 fluids given below:

 (a)  
D00467 Fluid, Landing gear shock strut - BMS3-32, Type II

 (b)  
D00500 Castrol Aero 25

 (c)  
D00590 Fluid, Flap drive system - Brayco 795

 (d)  
D00501 Castrol Aero 30

 (e)  
D00502 Castrol Aero 35

 (f)  
D00503 Castrol Aero 40

 (g)  
D00465 Royco LGF

 (2)  
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) 710 Nose Landing Gear and Doors 730/740 Main Landing Gear and Doors
 B.  Prepare for the Servicing
 S 413-008
 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.

 (2)  
Move the flap control lever to the 30 unit detent.

 S 213-010

 (3)  
Make sure the trailing edge (TE) flaps and leading edge (LE) slats are in the fully extended position.

 (4)  
Attach a DO-NOT-OPERATE tag to the flap control lever.

 S 863-009
 S 493-011
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 12-13-06
 ALL  ú ú 01 Page 301 ú Sep 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

TRANSMISSION
SEE A

LEFT WING SHOWN (RIGHT WING OPPOSITE) TRANSMISSION FILL PORT
A A
TRANSMISSION (EXAMPLE) (8 LOCATIONS)
A
FILL PORT 1
OIL LEVEL INDICATOR
TRANSMISSION
A-A
1 FILL TO THE LEVEL OF THE FILL PORT
Servicing for the Transmissions of the TE Flap Drive Figure 301
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 12-13-06
 ALL  ú ú 02 Page 302 ú Sep 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 S 213-012
 (5)  Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
 S 493-013
 WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO INSTALL THE DOOR
_______ LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (6)  
Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).

 S 863-014

 (7)  
If the left hydraulic system is pressurized, remove the pressure from the left hydraulic system (AMM 29-11-00/201).

 S 863-015

 (8)  
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 863-016
 (9)  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

 (c)  
11H23, FLAP/SLAT ALTN DR SHUTOFF ARM

 (d)  
11J18, FLAP LOAD RELIEF

 (e)  
11J33, WARN ELEX A

 C. Add the Oil for the Flap Transmission (Fig. 301)
 S 213-003
 (1)  Examine the oil level indicator.
 (a)  If you cannot see the oil level in the sight glass, do the steps that follow: 1) Remove the plug for the fill port.
　
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