Motrec E-322, Operator And Maintenance Manual

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Maintenance
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BATTERY CHARGER
! WARNING !
Always unplug the AC and DC electrical cords before attempting any repairs to the charger.
CHARGER DOES NOT TURN ON:
 Dc cord of portable chargers must be disconnected from batteries after every charge to restart;
 Check dc fuse links;
 Check battery voltage at the battery connector;
 Check ac outlet and cordset;
 Replace electronic control ;
RELAY CLOSES AND TRANSFORMER HUMS BUT AMMETER DOES NOT REGISTER:
 Check dc fuse links;
 Check the continuity of the dc output cord, ammeter, diodes and all connections in the dc
circuit;
 Check diodes;
 Check capacitor(rapidely increasing resistance);
SINGLE CHARGER FUSE BLOWS:
 Disconnect and check diodes;
BOTH FUSE LINKS BLOW:
 Check the battery pack and battery connector polarity;
 Disconnect and check diodes.
CHARGER OUTPUT IS LOW:
 Disconnect and check diodes;
 Can be caused by a transformer failure.
AMMETER READS 30 AMPS FOR MORE THAN 30 MINUTES:
 Check the battery pack;
CHARGER DOES NOT TURN OFF:
 Check specific gravity in each battery cell;
 As much as 16 hours may be required to properly charge heavely discharged new or cold
batteries;
 Replace electronic control.
AC LINE FUSE OR CIRCUIT BREAKER BLOWS:
 Check ac cordset;
 Check ac line fuse rating;
 Replace electronic control;
 Can be caused by a transformer failure.