(3)
Do the Maintenance Message Erase Procedure (AMM 31-41-00/201).
S 864-011
(4)
Make sure the STBY POWER switch, on the pilots' overhead panel P5, is set to the AUTO position.
S 714-020
(5)
Do a test of the main battery as follows:
(a)
Push the ECS MSG switch on the EICAS maintenance panel on the right side panel, P61.
(b)
Make sure the EICAS message, MAIN BAT CHGR, does not show on the bottom display.
(c)
Make sure the BAT switch on the P5 panel is ON.
(d)
Turn the STBY POWER switch on the P5 panel to the BAT position.
(e)
Push the ELEC HYD switch on the EICAS maintenance panel.
(f)
Make sure this value shows below STBY/BAT on the bottom EICAS display: 1) DC-V = 24 |4
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757 MAINTENANCE MANUAL
(g) (h) Set the Captain's and First Officer's clocks to the correct time and date (AMM 31-25-00/506).Turn the STBY POWER switch to the AUTO position
(6) S 494-016Put the battery hoist in the airplane, or send the hoist to supply, as applicable.
(7) S 864-017Remove electrical power if it is not necessary (AMM 24-22-00/201).
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757 MAINTENANCE MANUAL
MAIN BATTERY CHARGER - REMOVAL/INSTALLATION
___________________________________________
1. General
_______
A. The main battery charger, M218, (referred to as the battery charger) is on the left side of the forward equipment center.
TASK 24-31-02-004-001
2. Remove the Main Battery Charger (Fig. 401)
_______________________________
A. References
(1) AMM 20-10-01/401, E/E Rack Mounted Components
B. Access
(1)
Location Zone
113/114 Area forward of NLG wheel well
(2)
Access Panel
113AL Forward equipment center access
C. 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, MAIN BATTERY CHARGER
S 864-003
(2) Open this circuit breaker on the main power distribution panel (referred to as the P6 panel) and attach a DO-NOT-CLOSE tag:
(a) 6L8, MAIN BAT CHGR
D. Remove the Battery Charger
S 034-004
(1) Do these steps to disconnect the battery charger:
(a)
Disconnect the electrical connector from the battery charger.
(b)
Remove the terminal cover from the battery charger.
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MAINTENANCE MANUAL
SEE A EQUIPMENT FORWARD CENTER
FORWARD EQUIPMENT CENTER LOCATION
CHARGER, M218 MAIN BATTERY INVERTER STATIC
1
WASHER LOCKWASHER NUT FWD ELECTRICAL CONNECTOR
WASHER LOCKWASHER WIRES NUT BLOCK COVER TERMINAL SCREW WASHER
1 CHARGER AND BATTERY LEDs BATTERY CHARGER WITH THE A FORWARD EQUIPMENT CENTER
Main Battery Charger Installation Figure 401
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