Sevcon Troubleshooting
Page 14
Electrical Troubleshooting
TEST 7.3:
If the vehicle does not travel in forward, skip ahead to
test #7.4.
Place the forward and reverse switch in the REVERSE
position.
Referencing battery positive, test the voltage at the White/Black
wire on the F&R switch.
If the voltage equals battery volts, skip ahead to test
#7.4.
If the voltage does not equal battery volts, then the F&R
switch has failed.
Stop trouble shooting here and repair the problem. When
the repair is completed, completely retest the vehicle before
lowering the drive wheels to the ground.
TEST 7.4:
Check the wires from the F&R switch to the logic card connector for continuity.
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.
Stop, do not continue. Reaching this point
indicates a failure in the Sevcon power unit
or an error was made during testing. Confirm
all previous tests were performed correctly
before replacing the Sevcon power unit.
STOP
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.
Summary of Contents for B0-254-48
Page 2: ......
Page 18: ...TAYLOR DUNN...
Page 74: ...Maintenance Service and Repair Steering Page 22 Exploded View of Steering Gear...
Page 100: ...TAYLOR DUNN...
Page 136: ...TAYLOR DUNN...
Page 142: ...TAYLOR DUNN...
Page 154: ...TAYLOR DUNN...
Page 157: ...Sevcon Troubleshooting Page 3 Electrical Troubleshooting Identifying Your Controller...
Page 176: ...TAYLOR DUNN...
Page 194: ...Illustrated Parts Parts Page 2 Steering Knuckle...
Page 196: ...Illustrated Parts Parts Page 4 Front Brakes Brake body 9 above...
Page 198: ...Illustrated Parts Parts Page 6 Steering Linkage...
Page 206: ...Illustrated Parts Parts Page 14 Transmission Gear Case...
Page 210: ...Illustrated Parts Parts Page 18 Rear Brakes Brake body 8 above...
Page 212: ...Illustrated Parts Parts Page 20 Master Cylinder Brake linkage Linkage at the brake caliper...
Page 214: ...Illustrated Parts Parts Page 22 Brake Lines...
Page 216: ...Illustrated Parts Parts Page 24 Rear Suspension View from rear...
Page 218: ...Illustrated Parts Parts Page 26 Motor Rear Motor Mount...
Page 220: ...Illustrated Parts Parts Page 28 Instrument Panel dash...
Page 232: ...TAYLOR DUNN...
Page 233: ...APPENDIX A Special Tools...
Page 242: ...Model B 1 00...
Page 243: ......