Electrical Troubleshooting
Charger Troubleshooting
Page 7
• 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 wires from the harness
connectors to the charger are 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 wires from the harness connectors to the charger are bad.
Stop here
and repair the problem.
• If the timer relay does not pickup (click) when the AC source is connected, 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. The transformer primary consists of the two
solid wires with the brown fiber insulator 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 timer relay is bad.
Stop here and repair the problem.
• Test the AC voltage across the transformer low voltage secondary
circuit. The transformer low voltage secondary circuit can be
tested at the two solid wires with the brown fiber insulator that
are connected to the anodes on the two diodes. 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 rated DC voltage of the charger, the transformer
is bad and must be replaced.
Stop here and repair the
problem
.
Summary of Contents for B0-248-48AC
Page 2: ......
Page 70: ...Maintenance Service and Repair Steering Page 22 Exploded View of Steering Gear...
Page 88: ...TAYLOR DUNN...
Page 114: ...TAYLOR DUNN...
Page 120: ...TAYLOR DUNN...
Page 132: ...TAYLOR DUNN...
Page 134: ...TAYLOR DUNN...
Page 164: ...Illustrated Parts Parts Page 2 Front Axle...
Page 166: ...Illustrated Parts Parts Page 4 Steering Knuckle...
Page 168: ...Illustrated Parts Parts Page 6 Steering Linkage...
Page 174: ...Illustrated Parts Parts Page 12 Rear Suspension View from rear...
Page 176: ...Illustrated Parts Parts Page 14 Transmission Gear Case...
Page 180: ...Illustrated Parts Parts Page 18 Rear Brakes Front Brakes...
Page 182: ...Illustrated Parts Parts Page 20 Brake Lines Master Cylinder...
Page 184: ...Illustrated Parts Parts Page 22 Motor...
Page 186: ...Illustrated Parts Parts Page 24 Motor Mount Apply 94 421 34 grease to inside of motor coupler...
Page 188: ...Illustrated Parts Parts Page 26 Wheels and Tires Ref wheel hub 1 2 5 assembly 4 3 6 7 8 9 10...
Page 196: ...Illustrated Parts Parts Page 34 Lighting Stobe Light 4 1 2 3 5 6 7...
Page 206: ...Illustrated Parts Parts Page 44 Seat Cushions and Deck...
Page 208: ...Illustrated Parts Parts Page 46 Mirrors 92 202 00 Assembly Miscellaneous Frame Components...
Page 210: ...Illustrated Parts Parts Page 48 Decals...
Page 212: ...Illustrated Parts Parts Page 50 Cab Options Steel Cab Fiberglass cab...
Page 218: ...Illustrated Parts Parts Page 56 Hydraulic Dump Body Option...
Page 220: ...Illustrated Parts Parts Page 58 Rear Cargo Box 1 2 3 4 5 6 5 Top Covers...
Page 222: ...Illustrated Parts Parts Page 60 Hitches...
Page 224: ...TAYLOR DUNN...