TOUGH-WORKS MM493B, Instruction Manual

TR

OUBLESHOO

TING 

BD4603

15

PROBLEM

PROBLEM CAUSE

SUGGESTED CORRECTIVE ACTION

1. Sanding belt/disc has 

been stored in an incorrect 

environment.
2. Sanding belt/disc has 

been damaged or folded.

1. Ensure sanding accessories are
 stored away from extremely hot or 
 dry temperatures.
2. Store sanding accessories flat – not
 bent or folded.

1. Sanding belt/disc grit is

 too coarse for the desired 

 finish.

2. Workpiece sanded 

across the grain.

3. Too much sanding force

 on the workpiece.

4. Workpiece held still 

against the belt/disc for

too long.

Motor will not 

start –fuses or 

circuit breakers

tripping or 

blowing.

Sanding Grains

easily rub off 

belt or discs. 

Deep sanding

grooves or scars

in workpiece.

1. Use a finer-grit sanding accessory.
2. Sand with the grain of the wood.
3. Reduce pressure on workpiece while

 sanding.
4. Keep workpiece moving while sanding
 on the sanding accessory.

 MM493B

Sanding surface

clogs quickly.

1. Too much pressure

 against belt/ disc.
2. Sanding softwood.

1. Reduce pressure on workpiece while

 sanding.

2. Use different stock, different sanding

 accessories, or accept that this will happen

 and plan on cleaning or replacing discs/

 belts  frequently.

1. Using a sanding grit 

that is too fine.
2. Using too much pressure.
3. Work held still for too 

long.

1. Use a coarser-grit sanding accessory.
2. Reduce pressure on workpiece while 

sanding.
3. Do not keep workpiece in one place

 for too long.

Burns on 

workpiece.

1. Short circuit in line, 

cord or plug.
2. Short circuit in motor 

or loose connections.
3. Incorrect fuses or circuit 

breakers in power line.

1. Inspect cord or plug for damaged 

insulation and shorted wires.
2. Inspect all connections on motor for

 loose or shorted terminals and/or worn

 insulation.
3. Install correct fuses or circuit breakers

 or switch tool to an appropriately size 

 circuit.

Workpiece lifts up

from the sanding

disc/table.

Sanding on the “up” side
 wheel.

Sand on right side of sanding disc
(as operator faces the disc).