(n) (o)  521UBX/621UBX Wing Nacelle Attach Fitting, Lubrication Points #1251 Forward Cargo Compartment Aft Wall Panels
 (2)  S 083-181Remove the PDU lock from the TE flap PDU (Fig. 307).
 (3)  S 863-182Remove 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
 (4)  S 863-183Remove 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
 (5)  S 863-180Remove the DO-NOT-OPERATE tag from the flap control lever.
 (6)  S 843-179Make sure the TE flaps and LE slats are fully retracted with the flap control lever in the zero (FLAPS UP) detent (AMM 27-81-00/201).
 S 843-033

 WARNING:_______REMOVE THE DOOR LOCKS. BE AWARED THAT THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (7)  
Remove the locks for the landing gear doors and close the doors (Ref 32-00-15/201).

 S 863-184

 (8)  
Remove electrical power (Ref 24-22-00/201).

 S 443-185

 (9)  
Do the activation procedure for the thrust reverser (Ref 78-31-00/201).

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 TASK 12-21-08-613-278
 3. Lubricate the Main and Auxiliary Track Rollers (bearings through bolts with
___________________________________________________________________________ lube fittings only) and rub surfaces at the Outboard LE Slats
______________________________________________________________
 A. Equipment
 (1)  
Trailing Edge Flap Power Drive Unit Lock - B27008-1

 (2)  
Circuit Breaker Lockout Clip
 (Commercially Available)

 (3)  
LE Slat Drive Lock Set - B27020-31

 (includes CB Locks B27020-25 and B27065-1. Valve Locks B27020-32 or B27077-1 are not used in this procedure)
 B. Consumable Materials
 (1)  
D00014 Grease - MIL-G-21164 (Recommended)

 (2)  
D00013 Grease - MIL-G-23827 (Optional)

 (3)  
D00033 Grease - BMS 3-33 (recommended)

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

 C. References
 (1)  
06-44-00/201, Wing Access Doors and Panels

 (2)  
24-22-00/201, Electrical Power - Control

 (3)  
AMM 27-81-00/201, LE Slat System - Maintenance Practices

 (4)  
29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 (5)  
32-00-15/201, Landing Gear Door Locks

 (6)  
32-00-20/201, Landing Gear Downlocks

 (7)  
78-31-00/201, Thrust Reverser System

 D. Access
 (1)  Location Zones 193/194 Wing to Body - Forward Lower Half 211/212 Control Cabin 510/610 Wing Leading Edge - Forward of Front Spar and Inboard
 of Nacelle Strut 520/620 Wing Leading Edge - Forward of Front Spar and
 Outboard of Nacelle Strut 730/740 Left and Right Main Landing Gears and Doors 732/742 Left and Right Main Landing Gear Wheel Well
 (2)  Access Panels 621HB Main and Auxiliary Track Roller Lubrication 521AB/621AB LE Slat Drive Mechanism, Tracks, Rollers 521CB/621CB LE Slat Drive Mechanism, Tracks, Rollers 521EB/621EB LE Slat Drive Mechanism, Tracks, Rollers 521GB LE Slat Drive Mechanism, Tracks, Rollers 521KB/621KB LE Slat Drive Mechanism, Tracks, Rollers 521MB/621MB LE Slat Drive Mechanism, Tracks, Rollers 521PB/621PB LE Slat Drive Mechanism, Tracks, Rollers 521RB/621RB LE Slat Drive Mechanism, Tracks, Rollers
 E. Prepare for the Lubrication
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 01 Page 306 ú Sep 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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MAINTENANCE MANUAL