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BATTERY CHARGING SYSTEMS
To test alternator before it goes to the
regulator, unplug the yellow connector and
measure the AC voltage across the the two
gray wires inside this connector.There
should be at least 20 volts AC.
USED ON THE ZT2350
USED ON ZT18542
To test alternator, first disconnect the
green plug. Then measure for AC voltage
between the terminal end on the gray
wire and the bolt in the regulator There
should be around 40 volts AC.
Red wire goes to the engine plug and
then on to the positive terminal of the
solenoid to keep the battery charged.
Easiest way to check if the charging is
taking place is to measure the DC
voltage of the battery before you start
the engine. Then start the engine.
Measure the voltage at the battery with
the engine running. The voltage should
be at least one volt higher right after
the engine is started. This voltage will
drop a little as the battery gets
recharged.
Red wire goes to the engine plug and then
on to the positive terminal of the solenoid
to keep the battery charged. Easiest way to
check if the charging is taking place is to
measure the DC voltage of the battery
before you start the engine. Then start the
engine. Measure the voltage at the battery
with the engine running. The voltage
should be at least one volt higher right after
the engine is started. This voltage will drop
a little as the battery gets recharged.
Voltage
Regulator
10