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Electrical Troubleshooting
Charger Troubleshooting
Page 10
TESTING THE INTERLOCK RELAY
Operation
The Interlock Relay disables the vehicle from running whenever the charger is connected to a working AC
power source. When the charger is plugged in, the relay contacts open and break the Key Switch connection
to the speed controller. The Interlock Relay is available for built-in chargers only. Not all built-in chargers
are equipped with this relay. To identify chargers that are equipped with the Interlock Relay:
Inspect the charger wire harness where it enters the charger cabinet for two Violet/Black
wires. If these wires are present then the charger is equipped with the Interlock Relay.
Testing
6. Disconnect the charger from the AC power source.
7. Disconnect the two Violet/Black wires at the charger harness knife connectors.
8. Set the DMM to check for continuity and connect the DMM leads to the wires
going into the charger.
•
The DMM should indicate a closed circuit. If the DMM indicates an open circuit, then the relay
or the wires to the relay have failed.
Stop here and repair the problem.
9. Connect the charger to a working AC power source.
•
The charger should turn on. If the charger does not turn on then their may be a problem with the
AC power source or the AC wiring to the charger. Refer to the beginning of this section for
charger troubleshooting. DO NOT continue until you have confirmed that the AC power source is
working.
•
The DMM should indicate an open circuit. If it still indicates a closed circuit, then the relay or the
wires to the relay have failed.
Stop here and repair the problem.
•
If the DMM indicates an open circuit then the interlock relay is functioning normally.
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. 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.
4. Disconnect the wires from the contact terminals on the timer relay .
5. Reconnect the batteries.
6. Wait 5 seconds, then test the continuity across the timer relay contact terminals.
•
If this is a closed circuit, then the timer start up circuit is functioning normally.
•
If there is an open circuit, then the timer relay has failed and the relay must be replaced.
Summary of Contents for B 2-10
Page 2: ......
Page 26: ...TAYLOR DUNN ...
Page 53: ...Maintenance Service and Repair Steering Page 15 Exploded View of Steering Gear ...
Page 54: ...TAYLOR DUNN ...
Page 72: ...TAYLOR DUNN ...
Page 85: ...Maintenance Service and Repair F2 F3 Transmission Page 13 EXPLODED VIEW ...
Page 86: ...TAYLOR DUNN ...
Page 94: ...TAYLOR DUNN ...
Page 100: ...TAYLOR DUNN ...
Page 106: ...TAYLOR DUNN ...
Page 116: ...TAYLOR DUNN ...
Page 172: ...Illustrated Parts Parts Page 2 Front Axle ...
Page 176: ...Illustrated Parts Parts Page 6 STEERING ...
Page 178: ...Illustrated Parts Parts Page 8 STEERING GEAR ...
Page 180: ...Illustrated Parts Parts Page 10 PARK BRAKE ...
Page 182: ...Illustrated Parts Parts Page 12 DEADMAN SEAT BRAKE optional ...
Page 184: ...Illustrated Parts Parts Page 14 MASTER CYLINDER BRAKE LINKAGE ...
Page 186: ...Illustrated Parts Parts Page 16 HYDRAULIC BRAKE LINES ...
Page 188: ...Illustrated Parts Parts Page 18 FRONT BRAKES optional REAR BRAKES ...
Page 195: ...Illustrated Parts Parts Page 25 This page intentionally left blank ...
Page 202: ...Illustrated Parts Parts Page 32 POWER TRACTION DRIVE ...
Page 204: ...Illustrated Parts Parts Page 34 REAR DIFFERENTIAL ...
Page 208: ...Illustrated Parts Parts Page 38 Tires Wheels 10 Ref wheel hub 1 2 5 assembly 4 3 6 7 8 9 ...
Page 210: ...Illustrated Parts Parts Page 40 CONTROL PANEL ...
Page 212: ...Illustrated Parts Parts Page 42 CONTROL PANEL EE ...
Page 216: ...Illustrated Parts Parts Page 46 DECALS MISCELLANEOUS STANDARD PARTS ...
Page 218: ...Illustrated Parts Parts Page 48 MISCELLANEOUS STANDARD PARTS Cont d ...
Page 220: ...Illustrated Parts Parts Page 50 Options ...
Page 222: ...Illustrated Parts Parts Page 52 ...
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Page 228: ...Illustrated Parts Parts Page 58 ...
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Page 232: ...Illustrated Parts Parts Page 62 ...
Page 234: ...Illustrated Parts Parts Page 64 ...
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Page 244: ...Illustrated Parts Parts Page 74 ...
Page 246: ...TAYLOR DUNN ...