T-375
4–4
4.2 Battery Charger
Vibration
Engine shockmounts are bad
Replace
Poor compression
Engine Manual
Overheating
Restriction in air cleaner
Exhaust pipe restriction
Remove
Restriction in water jacket
Engine Manual
Restriction in radiator
Coolant level too low
Loose water pump/alternator poly V-belt
Thermostat is bad
Engine Manual
Water pump is bad
Engine Manual
Excessive crankcase pressure Plugged crankcase breather line
Table 4–6 Miscellaneous Engine Troubleshooting
Condition
Possible Cause
Remedy / Reference Section
Table 4–7 Battery Charger (Solid State)
Condition
Possible Cause
Remedy / Reference Section
CB4 trips when charger is
turned on
Short in 12-volt wiring causing overload of
charger
Locate and remove short or
replace charger
Circuit breaker trips
repeatedly, even when not
connected
Internal short
Replace charger
Charger does not taper back
after charging for a few
minutes
Bad cell in battery
Test battery for defect according to
battery manufacturer’s instructions
Charger is bad
Replace
Charger does not charge
Open BCF3
Replace
Charger is not receiving AC input
Use voltmeter to confirm charger is
receiving 360-500 VAC. If not,
check input connections/fuses.
Charger output is not connected to 12 volt
battery
Check output wiring connections to
battery.
Charger is bad
Replace
Low output voltage measured
across charger output
Battery not connected to charger. It is
normal to measure 12 volts or less across
charger output with no battery connected
Check charging leads from charger
to battery
Reverse polarity connection to
battery has caused charger to
stop charging
Internal DC fuse blown and possible
damage to current carrying components
Replace
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Страница 60: ...T 375 6 2 Figure 6 2 Schematic for 12 VDC Control Circuit 12 VDC Control Circuit ...
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