29-09-11
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
SYSTEM A PRESSURE GAGE
RESERVOIR FOR THE SYSTEM A
RESERVOIR
FORWARD
BULKHEAD
(REF) RESERVOIR
PRESSURIZATION MODULE
SEE A
VENT CAP
SYSTEM B
RESERVOIR
PRESSURE GAGE
FOR THE SYSTEM B
RESERVOIR
VENT CAP
KEEL BEAM (REF)
RESERVOIR DEPRESSURIZATION CHECK VALVETUBING VALVE MOUNTING BOLTS, (2 LOCATIONS) TO THEASSEMBLY (2 LOCATIONS) WASHERS, NUTS RESERVOIRS(2 LOCATIONS)
(2 LOCATIONS) SEE C
PLUG, O-RING (TEST PORT)
MOUNTING BOLTS, WASHERS, NUTS (2 LOCATIONS)
ORIFICE ASSEMBLY NUT BACKUP RING CAP O-RING (3)
TEE (2 LOCATIONS)
SWIVEL NUT (2 LOCATIONS)
CAP  VENT CAP  FILTER  REDUCER 
ELEMENT FILTER O-RING  SEE  B  RESERVOIR PRESSURIZATION  (2 LOCATIONS)  BULKHEAD WHEEL WELL 
MODULE  PNEUMATIC 
FILTER  SLEEVE  SUPPLY LINE  INBD 
O-RING  SLEEVE  FWD 
O-RING  A 
FILTER 
B 

Reservoir Pressurization Module
Figure 201 (Sheet 1)

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A

737-300/400/500
MAINTENANCE MANUAL

FORWARD 
WHEELWELL 
BULKHEAD 
VALVE ASSEMBLY 
TUBING ASSEMBLY 
(2 LOCATIONS) 
SWIVEL ELBOW 
TEE VALVE 
TEE  1  RESERVOIR 
PRESSURIZATION 
MODULE 
FWD 
VENT CAP 
INBD 
TUBING ASSEMBLY 
C 

1  OR POST-SB 29-1093 AIRPLANES POST-SB 29-1065 
Reservoir Pressurization Module Figure 201 (Sheet 2) 

E36536
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A
737-300/400/500MAINTENANCE MANUAL
 TASK 29-09-11-002-007
 3.  Hydraulic Reservoir Pressurization Module Removal (Fig. 201)._________________________________________________
 A. Access
 (1)  Location Zones
 217 Right Main Wheel Well

 B. Procedure
 S 842-008
 (1)  
Do the steps to prepare for maintenance of the pressurization module.

 S 032-009

 (2)  
For pressurization modules with tee assemblies disconnect the tubes from the tee assemblies.

 S 032-052

 (3)  
For pressurization modules without the tee assemblies disconnect the tube at the pressurization module that connects to the system B depressurization valve.

 S 032-010

 (4)  
Remove the pneumatic supply lines (2 locations) from the right end of the pressurization module.

 S 022-053

 (5)  
Install caps on the pneumatic supply lines and the tube and the ports in the pressurization module.

 S 022-011

 (6)  
Remove mounting bolts that attach the pressurization module to the airplane.

 S 032-012

 (7)  
Remove these parts from the pressurization module if they are necessary for the new pressurization module:

 (a)  
Remove the orifice assembly from the pressurization module. 1) Make a record of the position of the backup ring and the

 O-rings. 2) Discard the O-rings and the backup ring.

 (b)  
Remove the plug from the test port.
 1) Discard the O-ring.

 (c)  
Remove the reducers from the pneumatic supply ports. 1) Discard the O-rings.

 TASK 29-09-11-402-013
 4.  Hydraulic Reservoir Pressurization Module Installation (Fig. 201).______________________________________________________
 A. Consumable Materials
 (1)  
D00054 Skydrol Assembly Lube - MCS 352
　
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