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757 MAINTENANCE MANUAL
 2) Remove the screws that hold the AC standby power relay.
 (c)  Remove the applicable standby power relay.
 TASK 24-33-01-404-005
 3.  Install the Standby Power Relays________________________________
 A. References
 (1)  
AMM 24-22-00/201, Electrical Power - Control

 (2)  
AMM 27-61-00/201, Spoiler/Speedbrake Control System

 B. Access
 (1)  Location Zones
 211/212 Flight Compartment

 C. Install the Standby Power Relay
 S 424-006
 (1)  Do these steps to install the standby power relay:
 (a)  
Install the applicable standby power relay.

 (b)  
Do these steps for the AC standby power relay: 1) Install the screws that hold the AC standby power relay. 2) Connect the electrical connector to the relay.

 (c)  
Close the main power distribution panel, P6.

 D. Do a Test of the Standby Power Relay Installation
 S 864-007
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 714-008

 (2)  
Do a test of the standby power relay, as follows:

 (a)  
Turn the STBY POWER switch, on the pilot's overhead panel P5, to the AUTO position.

 (b)  
Make sure the OFF light, that is adjacent to the STBY POWER switch, is off.

 (c)  
Turn the STBY POWER switch to the BAT position.

 (d)  
Make sure the OFF light, that is adjacent to the STBY POWER switch, stays off.

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757 MAINTENANCE MANUAL
 (e) (f)  Turn the STBY POWER switch to the OFF position.Make sure the OFF light, that is adjacent to the STBY POWER switch, comes on.
 (3)  S 444-009Do the activation procedure for the spoilers if you did the deactivation procedure (AMM 27-61-00/201).
 (4)  S 864-010Remove electrical power if it is not necessary (AMM 24-22-00/201).

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 MAIN/APU BATTERY TIE REMOTE CONTROL CIRCUIT BREAKER -
_____________________________________________________ REMOVAL/INSTALLATION
____________________
 1.  General_______
 A.  The Main-APU battery tie remote control circuit breaker (referred to as the RCCB) is outboard of the APU battery in the aft equipment center rack, E6.
 TASK 24-33-02-004-001
 2.  Remove the Main-APU Battery Tie Remote Control Circuit Breaker______________________________________________________________
 A.  Equipment
 (1) Remove - Insert Tool P/N 6500-001-0020, Matrix Science Corp.
 B.  Access
 (1)  
Location Zones
 154 Aft Cargo Compartment (Right)

 (2)  
Access Panel
 822 Aft Cargo Compartment Door

 C.  Remove the RCCB
 S 864-002
 (1)  Open this circuit breaker on the main power distribution panel, P6, and attach a DO-NOT-CLOSE tag:
 (a)  6L7, APU/MAIN BAT TIE
 S 864-003
 (2)  Open this circuit breaker on the overhead circuit breaker panel, P11, and attach a DO-NOT-CLOSE tag:
 (a)  11A20, EXT STBY CONT
 S 864-004
 (3)  Open this circuit breaker on the aft equipment center rack, E6, and attach a DO-NOT-CLOSE tag:
 (a)  APU BAT CHGR
 S 024-005
 (4)  Do these steps to remove the RCCB:
 (a)  
Open the access cover on the forward side of the aft equipment center, E6.

 (b)  
Remove the battery connector from the APU battery.
　
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