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 B.  Procedure
 S 424-007
 (1)  Do these steps to install the breaker:
 CAUTION: DO NOT DISTURB THE INSTALLATION OF THE TIE BUS WIRES.
_______ DISTURBING THE TIE BUS WIRES CAN CAUSE DAMAGE TO THE AIRPLANE ELECTRICAL SYSTEM.
 CAUTION: CONNECT THE LEADS CORRECTLY AND SECURELY TO THE BREAKER.
_______ THE ELECTRICAL SYSTEM WILL NOT OPERATE CORRECTLY IF THE LEADS ARE NOT PROPERLY CONNECTED, AND EQUIPMENT DAMAGE CAN OCCUR.
 (a)  
Connect the leads to the breaker.

 1)  Tighten the power terminal nuts to the value shown in Fig. 401.

 (b)  
Install the terminal cover.

 (c)  
Install the auxiliary contact connector into the breaker.

 S 414-008
 (2)  
Close the panel.

 S 864-009

 (3)  
Remove the DO-NOT-CLOSE tag and close this P6 panel circuit breaker:

 (a)  6A1, BAT BUS DISTR
 S 714-010
 (4)  Do a test of the generator, bus tie, and/or auxiliary power breaker installation:
 (a)  
Supply electrical power (AMM 24-22-00/201).

 (b)  
Push the BAT switch on the pilots' overhead panel P5 to ON (latched-in position).

 (c)  
Set the L, R, and APU GEN CONT switches (P5) to OFF (out position). 1) Make sure the amber OFF light in each switch is on.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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

757
MAINTENANCE MANUAL

 (d)  
Make sure the two BUS TIE switches (P5) are set to the ISLN (out position). 1) Make sure the amber ISLN light in each switch is on.

 (e)  
Make sure the amber L and R BUS OFF lights (P5) are on.

 (f)  
Push the two BUS TIE switches (P5) to the AUTO (latched-in) position. 1) Make sure the ISLN light in each BUS TIE switch is off.

 (g)  
Make sure the amber OFF lights in the L, R, and APU GEN CONT switches (P5) are on.

 (h)  
Make sure the amber L and R BUS OFF lights (P5) are off.

 (i)  
Push the BAT switch (P5) to off (out position).

 S 864-011
 (5)  Remove electrical power (AMM 24-22-00/201) if it is not necessary.
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 ALL  ú ú 01 Page 404 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
 GENERATOR FIELD AND HYDRAULIC CONTROL PANEL - REMOVAL/INSTALLATION
__________________________________________________________________
 1.  General_______
 A.  This procedure has two tasks. The first task removes the generator field and hydraulic control panel from the airplane. The second task installs the panel on the airplane.
 TASK 24-22-04-024-001
 2.  Remove the Generator Field and Hydraulic Control Panel______________________________________________________
 A.  Access
 (1)  Location Zones
 211/212 Flight Compartment

 B.  Prepare for removal
 S 864-010
 (1)  
Make sure that the engines and the APU are not running.

 S 864-002

 (2)  
Open this circuit breaker on the main power panel, P6, and attach DO-NOT-CLOSE tag:

 (a)  6A1, BAT BUS DISTR
 S 864-003
 (3)  Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags:
 (a)  
11H17, FLT CONT SHUTOFF TAIL LEFT

 (b)  
11H18, FLT CONT SHUTOFF TAIL CENTER

 (c)  
11H28, FLT CONT SHUTOFF TAIL RIGHT

 C.  Procedure
 S 024-004
 (1)  Remove the generator field and hydraulic control panel.
 TASK 24-22-04-424-005
 3.  Install the Generator Field and Hydraulic Control Panel_______________________________________________________
 A.  Procedure
 S 424-007
 (1)  
Install the generator field and hydraulic control panel.
　
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