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

Electric Motor Brake

A variable power supply capable of supplying 0-volts to 24-volts DC at 2-Amps will be required to perform
the testing.
The brake does not have to be removed from the transmission for this test.
6. Disconnect the electric brake connector from the vehicles harness.
7. Adjust the power supply to zero volts.
8. Connect the power supply to the electric brake.
9. Slowly increase the voltage until you hear a 'click' from the brake. The 'click' is the brake releasing.
The motor should now be free to rotate limited by the gear train and parking brake).
a) If the brake does not release until the voltage exceeds 18-volts, then the friction plate has
worn beyond its service limits and must be replaced.
b) If the brake does not release at all, then the brake electromagnet has failed and must be
replaced.
10. Reconnect the electric brake.
11. Reconnect the main positive and negative cables at the batteries.
12. Remove blocks from behind the wheels.
13. Release the parking brake and test drive the vehicle.
Maintenance, Service, and Repair
1. Make sure the key-switch is in the "OFF" position, then remove the
key.
2. Place the forward-reverse switch in the center "OFF" position.
3. If equipped with a hand or foot park brake, set the park brake.
4. Place blocks under the front wheels to prevent vehicle movement.
5. Disconnect the main positive and negative cables at the batteries.
Brakes
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