(2)
Access Panel
113AL Forward equipment center access
B. Prepare for Removal
S 864-002
CAUTION: OPEN THESE CIRCUIT BREAKERS IN THE SEQUENCE SHOWN TO PREVENT
_______
DAMAGE TO THE MAIN BATTERY CHARGER.
(1) Open this circuit breaker on the right miscellaneous electrical equipment panel (referred to as the P37 panel) and attach a DO-NOT-CLOSE tag:
(a) 37B2, BATTERY CHARGERS MAIN
S 864-003
(2) Open these circuit breakers on the main power distribution panel (referred to as the P6 panel) and attach a DO-NOT-CLOSE tag:
(a)
AIRPLANES WITH EXTENDED STANDBY POWER; 6L7, APU/MAIN BAT TIE
(b)
6L8, MAIN BAT CHGR
(c)
6L9, HOT BAT BUS
(d)
6L10, BAT BUS PWR
(e)
6L11, INV PWR BAT
(f)
6L12, CENTER BUS DC
(g)
6F6, LANDING GEAR ALTN EXT MOTOR
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
FORWARD MAIN MAIN
CENTER EQUIPMENT BATTERY, M223 BATTERY CONNECTOR
SEE A
MAIN BATTERY SHUNT
SEE C
MAIN
BATTERY
CURRENT
MONITOR
FWD SEE B
JAMNUT
LOCKWASHER INBD
FORWARD EQUIPMENT CENTER
A
FLAT WASHER CONNECTOR ELECTRICAL
TO BATTERY
C MAIN BATTERY SHUNT INBD FWD BATTERY CABLE FEED-THROUGH
TO GROUND
B MAIN BATTERY CURRENT MONITOR
Main Battery Current Monitor Installation
Figure 401
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
C. Remove the Current Monitor
S 024-004
(1) Do these steps to remove the current monitor:
(a)
Remove the battery connector from the main battery.
(b)
Remove the ground lead from terminal B on the main battery shunt.
(c)
Move the ground lead through the current monitor.
(d)
Remove the electrical connector from the current monitor.
(e)
Remove the screws that hold the current monitor.
(f)
Remove the current monitor.
TASK 24-31-05-404-005
3. Install the Main Battery Current Monitor (Fig. 401)
________________________________________
A. References
(1) AMM 24-22-00/201, Electrical Power - Control
B. Access
(1)
Location Zone
113/114 Area forward of NLG wheel well
(2)
Access Panel
113AL Forward equipment center access
C. Install the Current Monitor
S 424-011
(1) Do these steps to install the current monitor:
(a) Hold the current monitor so the BAT end of the current monitor points to the main battery.
NOTE: Make sure you align the GND and BAT sides of the current
____ monitor as shown (Fig. 401).
(b)
Move the battery ground lead through the current monitor.
(c)
Put the current monitor in position.
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