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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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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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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