S 863-231

 (4)  
Install a DO-NOT-OPERATE tag on the flap control lever.

 S 843-232

 (5)  
Make sure the downlocks are installed on the nose and main landing gear (Ref 32-00-20/201).

 S 483-233
 WARNING:_______USE AMM 32-00-15/201 TO INSTALL THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (6)  Open the doors for the main landing gear and install the door locks (Ref 32-00-15/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757 MAINTENANCE MANUAL
 S 863-234
 (7)  
Remove the pressure from the left hydraulic system
 (Ref 29-11-00/201).

 S 483-235

 (8)  
Install a PDU lock in the TE flap PDU at the forward bulkhead of the left main gear wheel well (Fig. 307).

 S 863-236

 (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)  
11J33, WARN ELEX A

 S 863-237
 (10) Open this circuit breaker on the P11 panel and install circuit breaker lock (B27065-1):
 (a)  11H23, FLAP/SLAT ALTN DR SHUTOFF ARM
 S 863-238
 (11) Open these circuit breakers on the main power distribution panel, P6, and install circuit breaker locks (B27020-25):
 (a)  
6D20, ALTN SLAT PWR

 (b)  
6D23, ALTN FLAP PWR

 S 013-239
 (12) Remove the access panels that follow (Ref 06-44-00/201):
 (a) 511CB or 193BL LE Slat Power Drive Unit and Hydraulics.
 F. Lubricate the Internal Gears of the LE Slat PDU (Fig. 304)
 S 013-045
 (1)  
Remove the button plugs to get access to the internal gears.

 S 643-019

 (2)  
Turn the torque tubes for the LE slat by hand and fill the gear teeth with grease by hand.

 NOTE: Turn the torque tube approximately 1 3/4 turns to make sure
____ that you apply a sufficient quantity of grease to all of the gear teeth.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757 MAINTENANCE MANUAL
 S 863-046
 (3)  Turn the torque tubes for the LE slat by hand to fully retract the LE slats.
 G. Put the Airplane Back to Its Usual Condition
 S 083-243
 (1)  
Remove the PDU lock from the TE flap PDU (Fig. 307).

 S 413-240

 (2)  
Install the access panels that follow (Ref 06-44-00/201):

 (a)  511CB or 193BL LE Power Drive Unit and Hydraulics
 S 863-244
 (3)  Remove the circuit breaker locks and the DO-NOT-CLOSE tags, and close these circuit breakers on the P11 panel:
 (a)  
11B18, WARN ELEX B

 (b)  
11D31, HYDRAULICS PTU CONT

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

 (d)  
11J33, WARN ELEX A

 S 863-245
 (4)  Remove the circuit breaker locks and 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 863-242
 (5)  
Remove the DO-NOT-OPERATE tag from the flap control lever.

 S 843-241

 (6)  
Make sure the TE flaps and LE slats are fully retracted with the flap control lever in the zero (FLAPS UP) detent.

 S 843-038
 WARNING:_______USE AMM 32-00-15/201 TO REMOVE THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (7)  Remove the locks from the main landing gear and close the doors (Ref 32-00-15/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
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