24-31-06
ALL ú ú 01 Page 404 ú Sep 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
APU BATTERY CURRENT MONITOR - REMOVAL/INSTALLATION
__________________________________________________
1. General
_______
A. The APU battery current monitor, M10495, (referred to as the current monitor) is adjacent to the APU battery in the aft equipment center rack, E6.
TASK 24-31-07-004-001
2. Remove the APU Battery Current Monitor (Fig. 401)
______________________________________
A. Access
(1)
Location Zone
153 Aft cargo compartment (Right)
(2)
Access Panel
822 Aft cargo compartment door
B. Prepare for Removal
S 864-002
(1) Open this circuit breaker on the main power distribution panel (referred to as the P6 panel) and attach a DO-NOT-CLOSE tag:
(a) 6A4, BAT CUR MON PWR
S 864-003
CAUTION: OPEN THESE CIRCUIT BREAKERS IN THE SEQUENCE SHOWN TO PREVENT
_______
DAMAGE TO THE APU BATTERY CHARGER.
(2) 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) 37B5 (Plate B), APU BATTERY CHARGER
S 864-004
(3) Open this circuit breaker on the aft equipment center rack (referred to as the E6 rack) and attach a DO-NOT-CLOSE tag:
(a) APU BAT CHGR
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
AIRPLANES WITH EXTENDED STANDBY POWER; ú 24-31-07
ú ú 02 Page 401 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
AFT CARGO DOOR
AFT EQUIPMENT CENTER
SEE A
CONNECTOR ELECTRICAL BATTERY CURRENT APU MONITOR SEE B
APU BATTERY CONNECTOR SEE C
UP BATTERY CABLE FEED-THROUGH AFT EQUIPMENT CENTER RACK E6 FWD
INBD A
APU BATTERY CURRENT MONITOR
B NUT INCH-POUNDS) TO 135-145 (TIGHTEN
GROUND LEAD
APU BATTERY CONNECTOR C APU Battery Current Monitor Installation Figure 401
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
AIRPLANES WITH EXTENDED STANDBY POWER; ú 24-31-07
ú ú 02 Page 402 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
C. Remove the Current Monitor
S 024-005
(1) Do these steps to remove the current monitor:
(a)
Open the cover on the front of the E6 rack.
(b)
Remove the battery connector from the APU battery.
(c)
Open the battery connector.
(d)
Remove the ground lead from the battery connector.
(e)
Move the battery ground lead through the current monitor.
(f)
Remove the electrical connector from the current monitor.
(g)
Remove the screws that hold the current monitor.
(h)
Remove the current monitor.
TASK 24-31-07-404-006
3. Install the APU Battery Current Monitor (Fig. 401)
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A. References
(1) 24-22-00/201, Electrical Power - Control
B. Access
(1)
Location Zones
154 Aft cargo compartment (Right)
211/212 Flight compartment
(2)
Access Panel
822 Aft cargo compartment door
C. Install the Current Monitor
S 424-014
(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 APU battery.
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