Taylor-Dunn B0-T48-48 Taylor Truck T48, Руководство по эксплуатации, устранению неисправностей и замене запасных частей

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Battery Charger
Page 16
MN-402-000
Troubleshooting, Built-in Charger
5. Disconnect the charger from the AC power source.
6. Locate the charger harness connectors where the charger
harness is connected to the vehicle’s control harness.
There will be two 10 gauge and two or four 14 gauge wires.
7. Slide the insulators off the connectors on the two 10 gauge
wires and perform the following tests:
• Test the voltage from the vehicle harness red wire to main
battery negative terminal. 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 faulty connection. Stop here
and repair the problem.
• Test the voltage from the vehicle harness red wire to the other
10 gauge wire (white or black depending on model). This
voltage should be equal to the battery voltage. If the voltage
is less than the battery voltage, then the white (or black) wire
is broken or has a faulty connection. Stop here and repair the
problem.
8. Slide the insulators back onto the connectors on the two
10 gauge wires.
9. Slide the insulators off the connectors on the Black and
White 14 gauge wires.
10. Re-Connect the charger to the AC source and perform the
following tests:
• Test the voltage across the Black and White 14 gauge wires.
This voltage should be the same as the voltage at the AC
receptacle (rated voltage of the charger). If the voltage is less
than the rated AC voltage of the charger then the 14 gauge
white or black wire(s) is broken or has a bad connection
between the charger connectors and the AC plug. Stop here
and repair the problem.
1. Make sure the start switch is in the “OFF”
position, then remove the key.
2. Place the forward-reverse switch in the center
“OFF” position.
3. Set the park brake.
4. Place blocks under the front wheels to prevent
vehicle movement.
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.
High Voltage. Do not touch the 14-gauge wires and
make sure these two wires do not come into
electrical contact with any other object. Failure to
do so may result in serious bodily injury.
11. Disconnect the charger from the AC power source.
12. Disconnect the batteries.
13. Remove the charger from the vehicle.
14. 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 faulty.
• Disconnect one transformer lead from the capacitor. Test the
capacitor using the capacitor test function of the meter. It is a
6 microfarad capacitor. If the capacitor is bad, it must be
replaced. Stop here and repair the problem.
• Reconnect the transformer lead to
the capacitor and disconnect one
transformer lead from one of the
diodes. Test each of the diodes
using the diode test function of
your meter. If either one of the
diodes are bad, replace the diode
assembly. Stop here and repair the
problem.
15. Reconnect the lead to the diode.
16. Reconnect the charger to the vehicle’s harness and slide
the wiring insulators back into place. Connect the charger
to the AC source and perform the
following tests:
• Test the voltage from the fuse
assembly (-) to the diode block
(+). This voltage should be equal
to the battery voltage. If the
voltage is less than the battery
voltage, then the wires from the
harness connectors to the charger
are 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 wires from
the harness connectors to the charger are bad. Stop here and
repair the problem.
• If the timer relay does not pickup (click) when the AC source
is connected, then the timer control circuit or the relay is bad
(refer to Timer Relay Test). Stop here and repair the problem.
High Voltage inside the charger. Do not touch any
internal components while the charger is plugged
in. Touching internal components may result in
electric shock causing severe boldily injury or death.