S 863-007

 (5)  
Put the flap control lever in the UP detent to retract the trailing edge flaps.

 S 413-016

 (6)  
Put the speed brake control lever in the DOWN position to lower the spoilers.

 S 863-012

 (7)
Do this task to depressurize hydraulic systems No. 1 and 4: "Hydraulic System Depressurization" (Ref 29-11-00/201).

 TASK 12-13-13-613-010
 3.  Trailing Edge Flap Alternate Drive Motor Servicing__________________________________________________
 A. General
 (1)  This task applies to airplanes with alternate drive motors P/N 1176T100, 793T100, or 4136T100 and 4137T100 series (S256T011) installed. It is not necessary to fill the S256T004 alternate drive motors.
 B. Consumable Materials
 (1)  D00070 Oil - Hydraulic, Petroleum Base, MIL-H-5606
 C. Access
 (1)  Location Zone
 135 Wing Landing Gear Wheel Well, LH
 136 Wing Landing Gear Wheel Well, RH

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A
747-400 MAINTENANCE MANUAL
 D. Procedure
 S 613-011
 (1)  Add oil to the alternate drive motors P/N 1176T100, 793T100 or 4136T100 and 4137T100 series (S256T011) (Fig. 301).
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A

747-400 
MAINTENANCE MANUAL 
TRANSMISSION 
SEE  D 
TRANSMISSION 
SEE  D 

TRANSMISSION 
SEE  C 
TRANSMISSION 
SEE  C 
INBOARD FLAPS 
ALTERNATE  OUTBOARD FLAPS 
DRIVE MOTOR  ALTERNATE 
SEE  B  DRIVE MOTOR 
SEE  A 

NOTE: WHEEL WELL AREA AND LEFT WING SHOWN. (RIGHT WING SIMILAR TO LEFT)
Trailing Edge Flap Drive System Servicing (Oil Replenishing) Figure 301 (Sheet 1)
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A

747-400
MAINTENANCE MANUAL

OUTBOARD FLAP 
ALTERNATE 
CLUTCH SEAL  DRIVE MOTOR 
PLUGS  2 
OUTBOARD FLAP 
ALTERNATE  INBD  FWD  MIL-H-5606 
DRIVE MOTOR  (1 LOCATION) 
3 

OUTBOARD FLAP ALTERNATE DRIVE MOTOR MIL-H-5606 1 POINT (1 LOCATION)
A1 4
A
A  OIL LEVEL
DRAIN PLUG
OUTBOARD FLAP ALTERNATE DRIVE MOTOR
FILL PLUG 1 POINT DRAIN PLUG
A 5  3 A-A6
NOTE: IT IS NOT NECESSARY TO SERVICE THE S256T004 ALTERNATE DRIVE MOTOR. 1 REMOVE MOTOR (AMM 27-51-17/400). DRAIN OIL AND FILL WITH 100 CUBIC CENTIMETERS. MOTOR WILL FILL VERY SLOWLY. BE SURE THAT 100 CC OF OIL IS ADDED. 2 _______
CAUTION: DO NOT REMOVE
3

METALLIC PARTICLES IN OIL ARE NORMAL AND ARE NOT CAUSE FOR REJECTION.
4

793T100 SERIES MOTORS
5

4137T100 SERIES MOTORS
6

REMOVE FILL AND DRAIN PLUG. INSTALL DRAIN PLUG AND FILL
TO THE OIL LEVEL LINE. INSTALL THE FILL PLUG.

Trailing Edge Flap Drive System Servicing (Oil Replenishing) Figure 301 (Sheet 2)
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 OR 4137T100 SERIES  ú
 ELECTRIC DRIVE MOTORS  ú 01 Page 307 ú Oct 18/00
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