S 863-042

 (5)  
Put an oil resistant container (5 gal) under the drain plug.

 S 683-043

 (6)  
Do these tasks to drain the transmission:

 (a)  
Remove the fill plug on top of the transmission.

 (b)  
Remove the drain plug on the bottom of the transmission.

 (c)  
Install the drain plug after the fluid has drained.

 S 613-044
 (7)  Do these tasks to fill the transmission with fluid:
 (a)  
Fill to the level of the filler port with transmission fluid.

 (b)  
Install the fill plug.

 F. Put the Airplane Back to Its Usual Condition
 S 083-045
 (1)  
Remove the oil resistant container and other items used.

 S 163-046

 (2)  
Wipe up spilled fluid.

 (3)  
Install the flap track fairings (AMM 27-51-32/401).

 (4)  
Supply power to hydraulic system B (AMM 29-15-00/201).

 S 863-048

 (5)  
Move the flap control lever to the UP position to retract the flaps (AMM 27-51-00/201).

 (6)  
Remove power from hydraulic system B (AMM 29-15-00/201).

 S 413-051
 S 863-047
 S 863-049
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 12-22-51
 ú  ALL  ú
 ú ú  ú 03.101 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.  Page 307Jul 12/02 

A
737-300/400/500MAINTENANCE MANUAL
 TASK 12-22-51-683-035
 6.  Service the No.3 or No.6 transmission______________________________________
 A. Special Tools and Equipment
 (1)  
DRAIN PAN - 727 part no. 69-14225-1 or equiv.

 (2)  
FUEL RESISTANT HOSE - Inside Diameter: .25 inch, Length: 12.0 Feet

 B. Consumable Materials
 (1)  D00070 HYDRAULIC FLUID (MIL-H-5606)
 C. References
 (1)  27-51-00/201, Trailing Edge Flap System
 D. Access
 (1)  
Location Zone 309, 409 Wing Trailing Edge Inboard Flap and Spoiler

 (2)  
Access Panel
 5735L, 5835R Transmission NO.3, NO.6 Access
 5736L, 5836R Transmission NO.3, NO.6 Access
 5127L, 5227R Flap Fairing Access

 E. Procedure
 S 863-022
 (1)  
Supply the system B hydraulic power (Ref 27-51-00/201).

 S 863-023

 (2)  
Move the flap control lever to the 40-unit position to extend the trailing edge flaps.

 S 863-024

 (3)  
Remove the system B hydraulic power (Ref 27-51-00/201).

 S 013-025

 (4)  
Open the applicable access panels on the Flap Track Fairing and the Wing Trailing Edge.

 (5)  
Attach the .25 inch I.D. drain hose to the drain pan.

 S 863-027

 (6)  
Put the drain pan into position (Fig. 301).

 (a)  
Position the pan on the fairing rib under the drain plug. Use a cloth to stabilize the pan if necessary.

 (b)  
Put the end of the tube not connected to the pan through the fairing access and into a bucket on the ground.

 S 483-026
 S 683-028
 (7)  Drain the Transmission.
 (a)  
Remove the fill plug on top of the transmission.

 (b)  
Remove the drain plug on the bottom of the transmission.

 (c)  
Install the drain plug after the fluid has drained.

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 12-22-51
 ú  ALL  ú
 ú ú  ú 03.101 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.  Page 308Jul 12/02 

A
737-300/400/500MAINTENANCE MANUAL
 S 613-037
 (8) Fill the transmission with fluid.
 (a)
Fill to the level of the filler port with transmission fluid.

 (b)
Install the fill plug.

 F. Put the Airplane Back to Its Usual Condition
　
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