Fisher POLY-CASTER 78001 - Troubleshooting Guide; Common Operational Issues

Lit. No. 94196/94197/94198, Rev. 05 22 November 1, 2010
TROUBLESHOOTING GUIDE
For control operation and use of diagnostic indicator
lights, see Operating the Spreader – Cab Control in
this manual.
Problem Possible Cause Suggested Solution
No power to cab control
(Ignition and control switches ON;
no illumination of indicator light(s).)
1. Control connector plug is loose. 1. Check plug connection at cab control.
2. Switched accessory connection
is poor or faulty battery.
2a. Check for low battery.
2b. Check switched accessory
connection.
3. Vehicle control harness is damaged. 3. Repair or replace damaged wires or
harness as required.
Speed control dial does not change
motor speed.
1. Malfunctioning cab control. 1. Replace cab control.
2. Malfunctioning spreader module. 2. Replace spreader module.
Spreader does not operate.
(Indicator light(s) illuminated.)
1. Overloaded condition is causing
over-current protection to activate.
1. Reset cab control by turning
the power OFF. Depress the
START/BLAST switch to resume
operation.
2. Wire harness is damaged or has an
open circuit between cab control and
spreader.
2a. Check plug connections at cab
control and spreader.
2b. Check wire connections at spreader
motor and at vehicle battery –
disconnect motor leads, turn control
on, set cab control to maximum on
variable speed controls and check for
voltage at motor leads.
2c. Repair or replace damaged wires and
connectors.
2d. Check the 100 amp in-line fuse.
Replace if necessary.
Spinner does not turn.
(Motor is running.)
Unplug the spreader harness and tag out, if required, before performing any
of the following repairs.
1. Obstruction is preventing rotation. 1. Clear obstruction.
2. Drive belt is loose or damaged. 2. Adjust the tension or replace the belt
if worn or damaged.
3. Motor pulley not secured to
motor shaft.
3. Tighten the pulley set screw or
replace the pulley if damaged.
4. Spinner pulley is not secured to
spinner shaft.
4. Tighten the pulley set screw or
replace the pulley if damaged.
5. Spinner shaft bearings are dry or
seized.
5. Grease or replace bearings.