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Electrical Troubleshooting
Charger Troubleshooting
Page 9
5. Reconnect the lead to the diode.
6. Connect the charger to the AC source. Insert the DC charger plug into the DC
receptacle and perform the following tests:
• Test the voltage from the fuse assembly (-) to the diode block (+). This voltage should be equal to the
battery voltage. If the voltage is less than the battery voltage, then the DC cord is bad.
Stop here and
repair the problem.
• Test the voltage across the white and black wires that are connected to the timer board. This voltage
should be the same as the rated AC voltage of the charger. If the voltage
is less than the rated AC voltage of the charger then the AC cord is
bad.
Stop here and repair the problem
.
• If the timer relay does not pickup (click) within 5 seconds of connecting
the DC charger plug, then the timer control circuit or the relay is bad
(refer to Timer Relay Test).
Stop here and repair the problem.
• Test the AC voltage across the transformer primary circuit. This voltage
should be the same as the rated AC voltage of the charger. If it is less
than the rated AC voltage of the charger, then the timer relay is bad.
Stop here and repair the problem.
• Test the AC voltage across the transformer secondary circuit. The voltage here will vary depending on
the state of charge in the batteries. The voltage should be between 208% and 250% of the rated DC
voltage of the charger. If the voltage is not between 208% and 250% of the charge’s rated DC voltage,
the transformer is bad and must be replaced.
Stop here and repair the problem.
Transformer Secondary Circuit
TESTING THE TIMER RELAY
Test 1:
1. Connect the batteries to the charger.
2. Plug the charger into the AC source.
3. Wait 5 seconds, then test the voltage at the timer relay coil terminals.
NOTE: This voltage should be close to the battery volts.
•
If the voltage is close to the battery volts, then skip to test 2.
•
If the voltage is not close to the battery volts, then the timer control circuit has failed and the timer must
be replaced.
Test 2:
1. Disconnect the batteries.
2. Unplug the charger from the AC source.
3. Discharge the capacitor (see warning on previous page).
High Voltage inside the charger. Do not touch any internal components
while the charger is plugged in. Failure to do so may result in serious
bodily injury.
Summary of Contents for B0-248-36
Page 2: ......
Page 6: ...TAYLOR DUNN...
Page 76: ...Maintenance Service and Repair Steering Page 22 Exploded View of Steering Gear...
Page 102: ...TAYLOR DUNN...
Page 138: ...TAYLOR DUNN...
Page 144: ...TAYLOR DUNN...
Page 156: ...TAYLOR DUNN...
Page 159: ...Sevcon Troubleshooting Page 3 Electrical Troubleshooting Identifying Your Controller...
Page 178: ...TAYLOR DUNN...
Page 210: ...Illustrated Parts Parts Page 2 Part number not available at time of printing Front Axle...
Page 212: ...Illustrated Parts Parts Page 4 Part number not available at time of printing Steering Knuckle...
Page 214: ...Illustrated Parts Parts Page 6 Part number not available at time of printing Front Brakes...
Page 216: ...Illustrated Parts Parts Page 8 Part number not available at time of printing Steering Linkage...
Page 228: ...Illustrated Parts Parts Page 20 Part number not available at time of printing Rear Brakes...
Page 230: ...Illustrated Parts Parts Page 22 Part number not available at time of printing Brake linkage...
Page 234: ...Illustrated Parts Parts Page 26 Part number not available at time of printing Motor...
Page 278: ...Illustrated Parts Parts Page 70 Part number not available at time of printing Hitches...
Page 279: ...Illustrated Parts Parts Page 71 Part number not available at time of printing...
Page 280: ...Illustrated Parts Parts Page 72 Part number not available at time of printing...
Page 281: ...APPENDIX A Special Tools...
Page 290: ...Model B 1 00...
Page 291: ......