PAGE 30 — TB12SE/TB12PE TUFFTRUK POWER BUGGY • OPERATION MANUAL — REV. #0 (04/01/22)
Troubleshooting
Symptom
Possible Problem
Solution
Loss of Power.
Defective motor controller?
Check or replace motor controller.
100A main fuse blown?
Check or replace fuse.
10A ignition fuse blown?
Check or replace fuse.
Emergency Stop Switch open?
CLOSE
switch. Pull to close.
Low electric motor RPM?
Check electric motor voltage.
Defective batteries?
Check or replace batteries.
Defective contactor?
Check or replace contactor.
Loss of Travel Speed.
FWD/REV speed cable signal not present?
Check or replace 5K ohm potentiometer.
REV speed switch signal not present?
Check or replace switch inside reverse lever.
System jerky when started.
Defective motor controller?
Check or replace motor controller/software.
FWD/REV speed signal intermittent?
Check or replace 5K ohm potentiometer.
Difficult to steer.
Low tire pressure?
Check tire pressure.
Defective damper or steering rod?
Check or replace damper or steering rod.
Parking brake will not hold.
Defective electric motor?
Check or replace electric motor.
Defective motor controller?
Check or replace motor controller/software.
Difficulty in stopping
.
Defective deadman microswitch?
Check or replace microswitch.
Defective brake motor?
Check or replace electric motor.
Defective motor controller?
Check or replace motor controller/software.
Electric motor will not start.
Defective motor controller?
Check or replace motor controller.
100A main fuse blown?
Check or replace fuse.
10A ignition fuse blown?
Check or replace fuse.
Emergency Stop Switch open?
Close switch. Pull to close.
Defective batteries?
Check or replace batteries.
Defective contactor?
Check or replace contactor.
Defective ignition switch?
Check or replace ignition switch.
TROUBLESHOOTING
