Service Manual

Topdresser 1800 & 2500
Page 4 – 4
Electrical System
Troubleshooting
CAUTION
Remove all jewelry, especially rings and
watches, before doing any electrical trouble-
shooting or testing. Disconnect the trailer wire
harness from the tow vehicle unless the test re-
quires battery voltage.
Problem Possible Causes
Brush and conveyor do not rotate when control handle
switch is turned to the ON position.
Problem with power or ground from vehicle.
Fuse (5 Amp) is faulty.
Trailer, switch and/or battery wire harnesses are not
connected or are faulty.
Control handle switch or circuit wiring is faulty.
Solenoid valve coil (S1) or circuit wiring is faulty.
Hydraulic problem exists (see Chapter 3 – Hydraulic
System).