S 085-076
 (14)
 Disconnect the test equipment from the electrical connector for the EMDP.

 S 085-057

 (15)
 Disconnect the test equipment from the ground and remove it from the airplane.

 S 435-058

 (16)
 Connect the electrical connectors on the system A and B EMDP's.

 S 865-077

 (17)
 Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P6-2 Panel
 1) ELEC HYD PUMP CONT SYS A
 2) ELEC HYD PUMP CONT SYS B

 (b)  
P6-11 Panel
 1) ELEC HYD PUMP SYS B

 (c)  
P6-12 Panel
 1) ELEC HYD PUMP SYS A

 (18)
 Remove electrical power if it is not necessary (Ref 24-22-00/201).

 S 865-078
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 HYDRAULIC SYSTEMS A AND B EMDP ACOUSTIC FILTER - REMOVAL/INSTALLATION
_____________________________________________________________________
 1.  General_______
 A.  There are two tasks in this procedure. There is a task for the removal and a task for the installation of the acoustic filter of the hydraulic systems A and B EMDP.
 TASK 29-15-27-004-021
 2.  Hydraulic Systems A and B EMDP Acoustic Filter Removal (Fig. 401)______________________________________________________
 A.  References
 (1)  
AMM 12-40-00/201, Cleaning and Washing

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

 (3)  
AMM 29-15-22/401, Hydraulic Systems A and B Electric Motor-Driven Pump

 (4)  
AMM 29-15-71/201, Hydraulic Systems A and B Pressure Module

 B.  Access
 (1)  Location Zone
 216,217 Main Wheel Well

 C.  Procedure
 S 864-001
 (1)  Open the applicable circuit breakers and attach DO-NOT-CLOSE tags:
 (a)  
P6-11 Circuit Breaker Panel
 1) STBY HYD PUMP NORMAL
 2) ELEC HYD PUMP SYS B

 (b)  
P6-12 Circuit Breaker Panel
 1) STBY HYD PUMP (ALT)
 2) ELEC HYD PUMP SYS A

 S 864-002
 (2)  
Remove the pressure from the hydraulic reservoirs
 (AMM 29-09-00/201).

 (3)
Disconnect the pump supply line at the quick-disconnect.

 S 034-003
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
SYSTEM A RESERVOIR
SYSTEM B RESERVOIR
SYSTEM A EMDP
SEE A
QUICK-DISCONNECT FOR THE SUPPLY LINE FOR THE SYSTEM A EMDP
QUICK-DISCONNECT FOR THE SUPPLY LINE FOR THE SYSTEM B EMDP
SYSTEM B EMDP
SEE A
ABEX EMDP
30` 25`
STRAP MOUNTING BOLT (2 LOCATIONS) FWD
A
CASE DRAIN LINE
PRESSURE
LINE

PUMP TO FILTER CONNECTION
A
SUPPLY LINE
ACOUSTIC FILTER STRAP SEE B EMDP (SYSTEM B EMDP ONLY) A-A
1
A
1
PUT THE HYDRAULIC HOSE IN THE POSITION SHOWN.
IN OTHER POSITIONS IT WILL RUB THE ELECTRICAL WIRES.

Hydraulic Systems A and B EMDP Acoustic Filter Removal/Installation
Figure 401 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
　
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