TASK 12-21-09-643-238
 8. Lubricate the Trailing Edge Flap Power Drive Unit (PDU) Control Rods
____________________________________________________________________
 A. Consumable Materials
 (1)  
D00633 Grease - BMS 3-33 (recommended)

 (2)  
D00014 Grease - MIL-G-21164 (alternative)

 (3)  
D00013 Grease - MIL-G-23827 (alternative)

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 12-21-09
 ALL  ú ú 01 Page 322 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
 B.
C.
D.
A
757
MAINTENANCE MANUAL

 (4)  
D00015 Grease - BMS 3-24 (alternative)

References

 (1)  
AMM 24-22-00/201, Electrical Power - Control

 (2)  
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 (3)  
AMM 32-00-15/201, Landing Gear Door Locks

 (4)
AMM 32-00-20/201, Landing Gear DownlocksAccess

 (1)  
Location Zones 143 Left MLG Wheel Well 144 Right MLG Wheel Well

Prepare for Service
 S 863-239
 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 863-284

 (2)  
Pressurize the left hydraulic system (AMM 29-11-00/201).

 S 863-240

 (3)  
Move the flap control lever to the 30 unit detent.

 S 863-241

 (4)  
Make sure the trailing edge (TE) flaps and leading edge (LE) slats are in the fully extended position.

 S 863-242

 (5)  
Attach a DO-NOT-OPERATE tag to the flap control lever.

 S 863-244

 (6)  
Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).

 S 483-245
 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 863-247

 (8)  
If the left hydraulic system is pressurized, remove the pressure from the left hydraulic system (AMM 29-11-00/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-21-09
 ALL  ú ú 01 Page 323 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
 S 863-248
 (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 863-249
 (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

 (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 Control Rods (Fig. 306)
 S 643-250
 (1)  Lubricate the control rods.
 F. Put the Airplane Back to Its Usual Condition
 S 863-285
 (1)  
Pressurize the left hydraulic system (AMM 29-11-00/201).

 S 863-251

 (2)  
Move the flap control lever to the zero (FLAPS UP) detent.

 S 863-252

 (3)  
Make sure that the TE flaps and LE slats move to the fully retracted position.

 S 863-253

 (4)  
Remove the DO-NOT-OPERATE tag from the flap control lever, if installed.

 S 863-254

 (5)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P6 panel:

 (a)  
6D20, ALTN SLAT PWR
　
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