Fisher speed-caser 2 Owner's Manual page 22

TROUBLESHOOTING GUIDE
On-Off (Single Speed) Control
PROBLEM
POSSIBLE CAUSE
Control connector plug is loosec
2. Blown fuse.
No power to cab control
(Switch is in ON position indicator
light not lit)
3. Low battery or loose connection
--
SUGGESTED SOLUTION
1. Check plug connection at cab
control.
2. Check the 10 amp in-Iine fuse.
Replace if necessary.
Check power supply for 12 VDC
3. Check vehicle battery
connections.
Clean off corrosion
Repair or replace damaged
wires
4. Repair or replace damaged
wires,
4. Open circuit in wire from battery
to cab co-ntrol.
1. Wire harness is damaged or has
an open circuit between cab
control and spreader .
Spreader does not operate
(Indicator light is lit)
2. Bearings are seized.
3. Motor brushes are worn and
prevent motor operation.
4. Motor bearings seized
1 a. Check plug connections at cab
control and spreader .
1 b. Check wire connections at
spreader motor and at vehicle
battery- disconnect motor
leads, turn spreader switch on,
check for voltage at motor
leads.
1 c. Repair or replace damaged
wires and connectors
1 d. Check the 30 Amp in-Iine fuse.
Replace if necessary.
Motor shaft should turn.
2. Check bearings on spinner
shaft, conveyor, and gearbox.
3. Remove and inspect both motor
brushes. Replace if worn (Brush
kit 65241 )
4. Replace motor if the motor shaft
will not turn.