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

 (3)  
AMM 29-15-00/201, Hydraulic Systems A, B and Standby

 C.  Access
 (1)  Location Zone
 215 Keel Beam

 D.  Prepare for Removal
 S 864-001
 (1)
Remove power from the hydraulic system A (AMM 29-15-00/201).

 S 864-002

 (2)  
Make sure that these switches, on the P5 panel, are in the OFF position:

 (a)  
The ENG 1 HYD PUMPS A switch

 (b)  
The ELEC 2 HYD PUMPS A switch

 (c)  
The FLT CONTROL A switch.

 S 864-003
 (3)  Release pressure from hydraulic system A reservoir (AMM 29-09-00/201).
 E.  Remove the PTU Control Valve
 S 034-004
 (1)  
Disconnect the electrical connector.

 (2)  
Disconnect the hydraulic lines.

 S 034-005
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A

737-300/400/500
MAINTENANCE MANUAL

STANDBY RESERVOIR (REF)
PTU CONTROL VALVE
SEE A ELECTRICALINBD CONNECTOR
PTU 
(REF) 
FWD 
WHEEL WELL 
HYDRAULIC 
CONNECTOR  MOUNTING 
BOLTS 
HYDRAULIC 
CONNECTOR 
TO PTU 
FROM SYSTEM A 
PRESSURE 
POSITION 
INDICATOR 

PTU CONTROL VALVE (VIEW FROM THE FRONT)
A
PTU Control Valve Installation Figure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 684-008
 (3)  
Drain hydraulic fluid into a container.

 S 164-009

 (4)  
Clean all hydraulic fluid from the installation area if it is necessary (AMM 12-40-00/201)

 S 034-007

 (5)  
Remove the mounting bolts.

 S 024-006

 (6)  
Remove the PTU control valve.

 TASK 29-22-31-404-010
 3. PTU Control Valve Installation (Fig. 401)
______________________________
 A. References
 (1)  
AMM 12-12-00/301, Hydraulic Reservoir

 (2)  
AMM 20-10-34/701, Metal Surfaces

 (3)  
SWPM 20-20-00, Standard Wiring Practices Manual

 (4)  
AMM 24-22-00/201, Manual Control

 (5)  
AMM 29-09-00/201, Hydraulic Reservoir Pressurization System

 (6)  
AMM 29-15-00/201, Hydraulic Systems A, B and Standby

 B. Access
 (1)  Location Zone
 215 Keel Beam

 C. Procedure
 S 164-016
 (1)  
Clean the mounting surfaces (AMM 20-10-34/701).

 (2)  
Install the PTU control valve.

 (3)  
Install the mounting bolts.

 S 424-017
 S 434-018
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A
737-300/400/500MAINTENANCE MANUAL
 S 434-019
 (4)  
Connect the hydraulic lines to the PTU control valve.

 S 284-020

 (5)  
Make sure that the bond is 0.008 ohms maximum between the valve and the mounting structure (SWPM 20-20-00).

 S 434-021

 (6)  
Connect the electrical connector.

 S 724-022