(a)  
P6-2 Panel
 1) ALT TE FLAP DRIVE AC

 S 024-006
 (5)  
Remove the flap alternate drive unit (Fig. 401):

 (a)  
Disconnect the electrical connector from the alternate drive unit.

 (b)  
Remove the bonding jumper from the alternate drive unit.

 (c)  
Remove the mounting bolts that attach the alternate drive unit to the flap power unit.

 (d)  
Remove the alternate drive unit.

 TASK 27-51-59-404-007
 2.  Flap Alternate Drive Unit Installation______________________________________
 A. Consumable Materials
 (1)  C00259 Primer - BMS 10-11, Type I
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

MOTOR HYDRAULIC FLAP SHAFT  SEE  A 
SHAFT RETAINER 
SEE  B 

FWD
FLAP ALTERNATE DRIVE UNIT
MOUNTING BOLTS
A
MOUNTING BOLT
TORQUE TUBE SPLINE COUPLING
FLAP ALTERNATE DRIVE UNIT
ELECTRICALFWD INBD CONNECTOR
B
Flap Alternate Drive Unit Installation Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
 B.
C.
D.
A
737-300/400/500MAINTENANCE MANUAL
 (2)  
D00633 Grease - BMS 3-33 (Recommended)

 (3)
D00013 Grease - MIL-G-23827 (Alternate)References

 (1)  
12-22-51/301, Trailing Edge Flap System Lubrication

 (2)  
27-51-00/201, Trailing Edge Flap Systems

 (3)
27-51-59/501, Flap Alternate Drive UnitAccess

 (1)  
Location Zone

 217 Right Main Wheel WellProcedure
 S 614-008
 (1)  
Do this task to fill the flap alternate drive unit: "Lubricate Trailing Edge Flap Drive System" (Ref 12-22-51/301).

 S 644-009

 (2)  
Apply a layer of the primer in the mounting holes on the flap power unit and on the flap alternate drive unit.

 S 644-010

 (3)  
Apply a thin layer of the grease to the full length of the output shaft on the alternate drive unit.

 S 644-011

 (4)  
Apply a thin layer of the grease to the input shaft on the flap power unit.

 S 424-012

 (5)  
Install the flap alternate drive unit on the flap power unit (Fig. 401):

 (a)  
Put the alternate drive unit on the flap power unit.

 (b)  
Install the mounting bolts on the alternate drive unit.

 (c)  
Install the bonding jumper on the alternate drive unit.

 (d)  
Connect the electrical connector to the alternate drive unit.

 S 864-013
 (6)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P6-2 panel
 1) ALT TE FLAP DRIVE AC

 S 724-014
 (7)  Do this task: "Functional Test - Flap Alternate Drive Unit" (Ref 27-51-59/501).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 FLAP ALTERNATE DRIVE UNIT - ADJUSTMENT/TEST
___________________________________________
 TASK 27-51-59-725-001
 1.  Functional Test - Flap Alternate Drive Unit___________________________________________
 A. References
 (1)  
24-22-00/201, Manual Control

 B.
Access

 (1)  
　
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