757 MAINTENANCE MANUAL
 S 864-017
 (7) Remove electrical power if it is not necessary (Ref 24-22-00).
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 24-25-01
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757 MAINTENANCE MANUAL
 HYDRAULIC MOTOR GENERATOR CONTROL UNIT REMOVAL/INSTALLATION
___________________________________________________________
 1.  General_______
 A.  This procedure has two tasks. The first task removes the hydraulic motor generator (HMG) control unit from the airplane. The second task installs the HMG control unit on the airplane.
 TASK 24-25-02-024-001
 2.  Remove the HMG Control Unit (Fig. 401)___________________________
 A.  Access
 (1)  
Location Zones
 211/212 Flight Compartment
 119/120 Main Equipment Center

 (2)  
Access Panels
 119BL Main Equipment Center

 B.  Prepare to Remove the HMG Control Unit
 S 864-003
 (1)  Open this circuit breaker on the main power distribution panel P6 and attach DO-NOT-CLOSE tag:
 (a)  6C3, HYD GEN CONT
 S 014-004
 (2) Open the HYD GEN POWER PANEL P71 to access the HMG control unit.
 C.  Procedure
 S 024-005
 (1)  Remove the HMG Control Unit
 (a)  
Remove the electrical connector D7070 from the HMG control unit.

 (b)  
Remove the four screws which attach the HMG control unit.

 (c)  
Remove the HMG control unit.

 TASK 24-25-02-424-002
 3.  Install the HMG Control Unit (Fig. 401)____________________________
 A.  References
 (1)  AMM 24-22-00/201, Electrical Power - Control
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757 MAINTENANCE MANUAL
SEEA
SEE  B  UNIT CONTROL 
A HYD GEN POWER PANEL P71  (4 PLACES) BOLTS MOUNTING 

ELECTRICAL CONNECTOR
HYDRAULIC MOTOR DRIVEN GENERATOR CONTROL UNIT
B
Hydraulic Motor Driven Generator Control Unit Installation Figure 401
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A

757 MAINTENANCE MANUAL
SEE A
M10662 
D03140ST D03144AC  M10663  K10562K10561 M10664 
K10568K10563  A 

SEE  B 
CONTROL 
HYDRAULIC GENERATOR  UNIT 
POWER PANEL, P71 
A ELECTRICAL 
MOUNTING BOLTS  CONNECTOR 
(4 LOCATIONS) 

HYDRAULIC MOTOR GENERATOR CONTROL UNIT
B
Hydraulic Motor Generator Control Unit Installation Figure 401A
A51177
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A
757
MAINTENANCE MANUAL

 (2)  AMM 29-11-00/201, Main Hydraulic Systems
 B. Access
 (1)  
Location Zones
 211/212 Flight Compartment
 119/120 Main Equipment Center

 (2)  
Access Panels
 119BL Main Equipment Center

 C. Procedure
　
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