S 864-027

 (3)
Open these circuit breakers and attach DO-NOT-CLOSE tags:

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

 D.
Remove the Bypass Valve and the Bypass Valve Motor

 S 034-030
 (1)  Remove the electrical connector from the bypass valve motor (Fig. 401).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-51-82
 ALL  ú ú 01 Page 404 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 024-060
 (2)  
Remove the bypass valve and the bypass valve motor from the valve housing:

 (a)  
Put a container below the bypass valve to catch the hydraulic fluid.

 (b)  
Remove the bolts that attach the bypass valve to the housing.

 (c)  
Carefully lift the bypass valve and the valve motor from the housing.

 (d)  
Put a cover on the housing.

 TASK 27-51-82-404-034
 5. Trailing Edge Flap Bypass Valve and Valve Motor Installation
____________________________________________________________
 A. Consumable Materials
 (1)  
D00288 Lubricant, Skydrol Assembly - MCS 352

 (2)  
D00148 Hydraulic Fluid, BMS 3-11, Type IV, Class 1

 B.
References

 (1)  
12-12-00/301, Hydraulic Reservoir

 (2)  
AMM 29-09-00/201, Hydraulic Reservoir Pressurization System

 C.
Access

 (1)  
Location Zones
 101, 102 Control Cabin
 217 Right Main Wheel Well

 D.
Procedure

 S 424-061
 (1)
Install the bypass valve and the bypass valve motor (Fig. 401):

 (a)  
Apply the hydraulic fluid or the assembly lube to the O-rings.

 (b)  
Install the five O-rings and the backup rings on the valve.

 (c)  
Remove the cover from the bypass valve housing.

 (d)  
Carefully put the valve in the housing.

 (e)  
Install the bolts that attach the valve to the housing. 1) Tighten the bolts to 30-40 pound-inches. 2) Install the lockwire on the bolts.

 S 434-040
 (2)  
Connect the electrical connector to the valve motor.

 E.
Put the Airplane Back to Its Usual Condition

 S 864-041
 (1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

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

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-51-82
 ALL  ú ú 01 Page 405 ú Nov 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 864-042
 (2)
Do this task: "Restore Airplane To Normal" (AMM 29-09-00/201).

 S 724-044

 (3)  
Do this task: "Trailing Edge Flap Bypass Valve Functional Test" (Ref 27-51-82/501).

 S 614-045

 (4)
Do this task: "Service Hydraulic Reservoir" (Ref 12-12-00/301).

 TASK 27-51-82-004-046
 6.  Trailing Edge Flap Bypass Valve Motor Removal_____________________________________________
 A. Access
 (1)  
Location Zones
 101, 102 Control Cabin
 217 Right Main Wheel Well

 B.
Procedure

 S 864-047
 (1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P6-2 Panel
 1) FLAP (SHUTOFF VALVES)

 S 034-048
 (2)  
Disconnect the electrical connector from the bypass valve motor (Fig. 401).

 S 864-062

 (3)  
Set the manual override lever on the valve motor to the POSITION 2.

 S 024-063

 (4)  
Remove the bypass valve motor:

 (a)  
Remove the four screws that attach the valve motor to the valve.
　
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