Taylor-Dunn MX-026-00, Руководство по эксплуатации, обслуживанию и замене запасных частей

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Battery Charger
Page 6
While connected to an AC outlet, the charger cabinet must remain electrically grounded. Disconnect both of
the battery leads and unplug the charger from the AC source before disconnecting any electrical component
or wire. Failure to do so may result in serious bodily injury.
Troubleshooting, Portable Charger
1. Disconnect the charger from the AC outlet and the batteries
and perform the following tests:
• Test the voltage from the positive terminal on the vehicles
DC receptacle to main battery negative. This voltage should
be equal to the battery voltage. If the voltage is less than
the battery voltage then this wire is broken or has a bad
connection. Stop here and repair the problem.
• Test the voltage from the positive terminal on the DC
receptacle to the negative terminal on the DC receptacle.
This voltage should be equal to the battery voltage. If the
voltage is less than the battery voltage, then the wire on the
negative terminal of the DC receptacle is broken or has a bad
connection. Stop here and repair the problem.
2. Remove the charger cover and perform the following tests:
• Inspect the internal wiring of the charger and repair as
required.
• Check the continuity of both fuse links and replace if bad.
• Disconnect one lead from the capacitor. Test the capacitor
using the capacitor test function on the meter. If the capacitor
is bad, it must be replaced. Stop here and repair the problem.
• Reconnect the lead to the capacitor and disconnect one
transformer lead from one of the diodes. Test each of the
diodes using the diode test function on the meter. If either
one of the diodes are bad, replace the diode assembly. Stop
here and repair the problem.
3. Reconnect the lead to the diode.
4. Connect the charger to the AC source. Insert the DC
charger plug into the DC receptacle and perform the
following tests:
• Test the voltage from the fuse assembly (-) to the diode block
common terminal (+). This voltage should be equal to the
battery voltage. If the voltage is less than the battery voltage,
then the DC cord is bad. Stop here and repair the problem.
• Test the voltage across the white and black wires that are
connected to the timer board. This voltage should be the same
as the rated AC voltage of the charger. If the voltage is less
than the rated AC voltage of the charger then the AC cord is
bad. Stop here and repair the problem.
Note: If the above tests are good and the timer relay does
not pickup (click) within 5 seconds of connecting the
DC charger plug, then the timer control circuit or the
relay is bad (refer to Timer Relay Test). Stop here
and repair the problem.
• Test the AC voltage across the transformer primary circuit.
This voltage should be the same as the rated AC voltage of the
charger. If it is less than the rated AC voltage of the charger,
then the timer relay is bad. Stop here and repair the problem.
• Test the AC voltage across the transformer secondary circuit.
The voltage here will vary depending on the state of charge in
the batteries. The voltage should be between 208% and 250%
of the rated DC voltage of the charger. If the voltage is not
between 208% and 250% of the charge’s rated DC voltage,
the transformer is bad and must be replaced. Stop here and
repair the problem.
High Voltage inside the charger. Do not touch any
internal components while the charger is plugged in.
Failure to do so may result in serious bodily injury.