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Sevcon Troubleshooting
Page 17
Electrical Troubleshooting
Connect a volt meter across the Violet/Black wire at the electric brake harness plug and Pin #9 at the logic
card connector. The voltage should start at approximately 24 volts, then drop to approximately 15 volts
after about 0.5 seconds.
If the test is good then:
• The blue wire from the electric brake harness plug to pin #9 on the logic card connector is
broken. 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.
If the test is bad then:
• The logic card is not releasing the brake. This could be a result of:
-Improper operation of the vehicle.
- fault in the vehicles wiring or switches.
-A fault in the speed controller.
-Incorrect programming.
-A failed speed controller.
Disconnect the electric brake harness connector and connect the electric brake to a 24-volt source. This
should release the brake and allow you to troubleshoot the vehicles control system. Return to the beginning
of the troubleshooting section and continue.
If the brake does not release then:
•
The electric brake has failed. Remove the brake and repair or replace the brake as required.
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.
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.
Содержание B0-248-36
Страница 2: ......
Страница 6: ...TAYLOR DUNN...
Страница 39: ...TABLE OF CONTENTS General Maintenance Maintenance Guidelines 2 Troubleshooting Guide 3 Lubrication Chart 4...
Страница 76: ...Maintenance Service and Repair Steering Page 22 Exploded View of Steering Gear...
Страница 102: ...TAYLOR DUNN...
Страница 132: ...Maintenance Service and Repair Transmission Page 20 NOTE Values shown are for reference only C D...
Страница 138: ...TAYLOR DUNN...
Страница 144: ...TAYLOR DUNN...
Страница 156: ...TAYLOR DUNN...
Страница 159: ...Sevcon Troubleshooting Page 3 Electrical Troubleshooting Identifying Your Controller...
Страница 178: ...TAYLOR DUNN...
Страница 210: ...Illustrated Parts Parts Page 2 Part number not available at time of printing Front Axle...
Страница 212: ...Illustrated Parts Parts Page 4 Part number not available at time of printing Steering Knuckle...
Страница 214: ...Illustrated Parts Parts Page 6 Part number not available at time of printing Front Brakes...
Страница 216: ...Illustrated Parts Parts Page 8 Part number not available at time of printing Steering Linkage...
Страница 224: ...Illustrated Parts Parts Page 16 Part number not available at time of printing Transmission Gear Case...
Страница 228: ...Illustrated Parts Parts Page 20 Part number not available at time of printing Rear Brakes...
Страница 230: ...Illustrated Parts Parts Page 22 Part number not available at time of printing Brake linkage...
Страница 232: ...Illustrated Parts Parts Page 24 Part number not available at time of printing Rear Suspension View from rear...
Страница 234: ...Illustrated Parts Parts Page 26 Part number not available at time of printing Motor...
Страница 236: ...Illustrated Parts Parts Page 28 Part number not available at time of printing Electric Brake and Rear Motor Mount...
Страница 240: ...Illustrated Parts Parts Page 32 Part number not available at time of printing Brake Lines with dual master cylinder...
Страница 242: ...Illustrated Parts Parts Page 34 Part number not available at time of printing Brake Lines with single master cylinder...
Страница 252: ...Illustrated Parts Parts Page 44 Part number not available at time of printing Lighting Stobe Light 4 1 2 3 5 6 7...
Страница 262: ...Illustrated Parts Parts Page 54 Part number not available at time of printing Seat Cushions and Deck B 2 48 and B 2 54...
Страница 268: ...Illustrated Parts Parts Page 60 Part number not available at time of printing Cab Options Steel Cab Fiberglass cab...
Страница 276: ...Illustrated Parts Parts Page 68 Part number not available at time of printing Rear Cargo Box 1 2 3 4 5 6 5...
Страница 278: ...Illustrated Parts Parts Page 70 Part number not available at time of printing Hitches...
Страница 279: ...Illustrated Parts Parts Page 71 Part number not available at time of printing...
Страница 280: ...Illustrated Parts Parts Page 72 Part number not available at time of printing...
Страница 281: ...APPENDIX A Special Tools...
Страница 290: ...Model B 1 00...
Страница 291: ......