TROUBLESHOOTING

Mechanical Problems - Variable Speed (PWM) and ON/OFF Control

PROBLEM

 

POSSIBLE CAUSE

 

SUGGESTED SOULUTION

Ice control material not flowing

1.

Bridging of material in hopper.

1.

Unplug the spreader harness

 

 

 

 

and tag out if required. Check

 

 

 

 

hopper for material and free any

 

 

 

 

bridged material.

 

1.

Drive belt is loose or damaged.

1.

Unplug the spreader harness

 

 

 

 

and tag out if required.

 

 

 

 

Reconnect after solution.

 

2.

Motor pulley not secured to

2.

Adjust belt tension. Replace belt

Spinner does not turn

 

motor shaft.

 

if damaged.

 

 

 

 

(Spreader motor is running)

3. Spinner pulley is not secured to

3.

Tighten pulley set screw.

 

 

the spinner shaft.

 

Replace pulley if damaged.

 

4.

Spinner shaft bearings are dry or

4.

Replace cap screw and nut if

 

 

seized.

 

missing or damaged. Replace

 

 

 

 

pulley if damaged.

 

 

 

1.

Unplug the spreader harness

 

 

 

 

and tag out if required.

 

 

 

 

Reconnect after solution.

 

1.

Drive belt is loose or damaged.

2.

Adjust belt tension. Replace belt

 

 

 

 

if damaged.

 

2.

Pulley is not secured to the

3.

Tighten pulley set screw.

 

 

spinner shaft.

 

Replace pulley if damaged

 

3.

Pulley is not secured to the

4.

Replace damaged or missing

 

 

gearbox shaft.

 

key. Replace pulley if damaged.

Conveyor belt not moving

4.

Gearbox is damaged.

5.

Replace gearbox if output shaft

 

 

 

does not turn when input shaft

(Spinner is turning)

 

 

 

turns.

 

5.

Conveyor rollers are not secured

6.

Replace missing cap screws and

 

 

to the shafts.

 

nuts. Replace shafts or rollers if

 

 

 

 

damaged.

 

6.

Conveyor belt is loose or

7.

Adjust belt tension. Replace belt

 

 

damaged.

 

if damaged.

 

7.

Conveyor belt is not aligned.

8.

Align belt to ride centered on

 

 

 

 

rollers.

 

8.

Conveyor belt shaft bearings are

9.

Grease or replace bearings.

 

 

seized or otherwise damaged.

 

 

 

 

 

1.

Unplug the spreader harness

 

 

 

 

and tag out if required.

Material in hopper does not flow

 

 

 

Reconnect after solution.

1. Feedgate is closed.

2.

Open feedgate fully, then adjust

(Conveyor belt and spinner are

 

 

 

to desired opening size.

moving)

2.

Obstruction in hopper.

3.

Remove obstruction.

 

 

 

 

1.

Unplug the spreader harness

 

 

 

 

and tag out if required.

 

 

 

 

Reconnect after solution.

Spread pattern not optimum

 

 

2.

Change deflector adjustment to

1. Deflector out of adjustment.

 

suit desired pattern. (See

 

 

 

 

“Operating the Spreader” in this

 

 

 

 

manual.)

April 1, 2005

20

Lit. No. 94430/94431

Page 22
Image 22
Fisher 1000-(10003) Mechanical Problems Variable Speed PWM and ON/OFF Control, Problem Possible Cause Suggested Soulution