Taylor-Dunn B0-254-48, Operation, T Roubleshooting And Replacement Parts Manual

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Sevcon Troubleshooting
Page 4
Electrical Troubleshooting
If your vehicles is equipped with an electric motor brake, the motor
brake system must be checked to be sure it is working properly before
continuing with this troubleshooting. Operating the speed control
when the motor brake has not disengaged may result in damage to
the motor or speed control system. Refer to
Test 9: Electric Motor
Brake
for information regarding testing the motor brake system.
The electric motor brake is mounted between
the drive motor and the primary reduction
gear case. An illustration of the motor brake
is shown to the left.
Electric motor brake
START TROUBLESHOOTING HERE
If the Battery Status Indicator does not show
a charged battery, check the following:
•
The batteries
•
The wiring from the battery status indicator
to the batteries for open circuits
•
The battery status indicator
•
The positive and negative circuit breaker
•
The main circuit breaker for open circuits
Do not continue unless the indicator shows a
charged battery.
If the vehicle runs in one direction only, then skip
ahead to test #3.
If the vehicle runs slow in forward, but otherwise
runs normal, then skip ahead to test #1.3.
After any repairs are made, completely retest
the vehicle before lowering the drive wheels to
the ground. Failure to retest the vehicle could
result in unexpected movement of the vehicle
resulting in injury or property damage.
This troubleshooting guide is written in
sequential order. All tests must be performed in
the order that they are written. Starting in the
middle or skipping sections when not instructed
to do so may lead to invalid test results.