S 863-003

 (2)  
Put the flap control lever in the 30-unit detent to extend the trailing edge flaps.

 NOTE: It is easier to get access to some lubrication fittings with
____ the flaps not fully extended. Move the flaps if it is necessary to get access to the lubrication fittings.
 S 863-004
 (3)  
Do this task to depressurize hydraulic systems No. 1 and 4: "Hydraulic System Depressurization (AMM 29-11-00/201) or, if electrical power is on, put the FLT CONTROL HYD POWER - WING switch to SHUTOFF and attach a DO-NOT-OPERATE tag.

 S 013-005

 (4)  
Remove these access panels from the top surface of the outboard midflaps: 577BT, 577ET, 587DT, 587HT, 677BT, 677ET, 687DT, and 687HT.

 S 643-020

 (5)  
Lubricate the foreflaps, midflaps, and aftflaps. See Fig. 301 for the inboard flaps and Fig. 305 for the outboard flaps.

 S 413-006

 (6)  
Install these access panels on the top surface of the inboard and outboard midflaps: 577BT, 577ET, 587DT, 587HT, 677BT, 677ET, 687DT, and 687HT.

 S 013-007

 (7)  
Do the applicable task: "Fixed Fairing Removal" (AMM 27-51-26/401 (inboard flaps) and AMM 27-51-31/401 (outboard flaps)).

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747-400 MAINTENANCE MANUAL
 S 643-008
 (8)  
Lubricate the flap tracks. Refer to Fig. 302 for the inboard flaps and Fig. 306 for the outboard flaps.

 S 643-018

 (9)  
Lubricate the flap carriages. Refer to Fig. 303 for the inboard flaps and Fig. 307 for the outboard flaps.

 S 643-019

 (10)
 Lubricate the flap fairings.  Refer to Fig. 304 for the inboard flaps and Fig. 308 for the outboard flaps.

 S 413-009

 (11)
 Do the applicable task:  "Fixed Fairing Installation" (AMM 27-51-26/401 (inboard flaps) and AMM 27-51-31/401 (outboard flaps)).

 E. Put the Airplane Back to Its Initial Condition
 S 863-014
 (1)  
Do this task to pressurize hydraulic systems No. 1 and 4: "Hydraulic System Pressurization" (AMM 29-11-00/201), or remove the DO-NOT-OPERATE tag and move the FLT CONTROL HYD POWER - WING switch to NORM.

 S 863-015

 (2)  
Put the flap control lever in the UP detent to retract the trailing edge flaps.

 S 863-016

 (3)
Do this task to depressurize hydraulic systems No. 1 and 4: "Hydraulic System Depressurization" (AMM 29-11-00/201).

 TASK 12-21-20-633-021
 3.  Trailing Edge Flap Ballscrew Lubrication________________________________________
 A. Consumable Materials
 (1)  
D00633 Grease - BMS 3-33 (recommended)

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

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400
MAINTENANCE MANUAL

 B. References
 (1)  AMM 29-11-00/201, Main Hydraulic Supply System
 C. Access
 (1)  Location Zone
 (a)  
On the left wing: 561 Inboard Flap Track Fairing, Inboard Flap, LH, (Track No. 4) 563 Outboard Flap Track Fairing, Inboard Flap, LH, (Track No. 3) 565 Inboard Flap Track Fairing, Outboard Flap, LH, (Track No. 2)

 567  Outboard Flap Track Fairing, Outboard Flap, LH, (Track No. 1)

 (b)  
On the right wing: 661 Inboard Flap Track Fairing, Inboard Flap, RH, (Track No. 5) 663 Outboard Flap Track Fairing , Inboard Flap, RH, (Track No. 6) 665 Inboard Flap Track Fairing, Outboard Flap, RH, (Track No. 7)

 667  Outboard Flap Track Fairing, Outboard Flap, RH, (Track No. 8)
 D. Procedure
 S 863-022
 (1)  
Do this task to pressurize hydraulic systems No. 1 and 4:
 "Hydraulic System Pressurization" (AMM 29-11-00/201).
　
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