Grizzly H8192 owner manual Service, Troubleshooting

Models: H8192

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Troubleshooting

SECTION 7: SERVICE

Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel- ops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570) 546-9663.

Troubleshooting

Symptom

 

Possible Cause

Possible Solution

 

 

 

 

 

 

 

 

 

 

Motor

 

will

not

1.

Low voltage.

1.

Check power line voltage and correct if necessary.

start;

fuses/circuit

2.

Loose connection or short in line cord, plug,

2.

Inspect/repair cord,

plug, and

motor for damaged

breakers trip.

 

 

or motor.

 

insulation, shorted wires, or loose connections.

 

 

 

 

 

 

 

 

 

 

3.

Incorrect fuses or circuit breakers in power

3.

Install correct fuses or circuit breakers.

 

 

 

 

 

line.

 

 

 

 

 

 

 

 

 

 

 

Motor stalls.

 

1.

Motor overloaded.

1.

Reduce load on motor.

 

 

 

 

 

2.

Low voltage.

2.

Check power line voltage and correct if necessary.

 

 

 

 

3.

Incorrect fuses or circuit breakers in power

3.

Install correct fuses or circuit breakers.

 

 

 

 

 

line.

 

 

 

 

 

 

 

 

 

Machine slows when

1.

Workpiece pressure is too great.

1.

Reduce workpiece pressure on sanding surface.

operating.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Machine

vibrates

1.

Machine not mounted securely.

1.

Properly secure

machine

to benchtop/stand

excessively.

 

 

 

 

(Page 18).

 

 

 

 

 

 

2.

Incorrect sanding belt tracking.

2.

Adjust sanding belt tracking (Page 22).

 

 

 

 

3.

Weak or broken sanding belt tension

3.

Replace spring.

 

 

 

 

 

 

 

spring.

 

 

 

 

 

 

 

 

4.

Broken/damaged sanding belt.

4.

Replace sanding belt.

 

 

 

 

 

5.

Sanding disc rubbing, not properly centered,

5.

Properly install/secure sanding disc.

 

 

 

 

 

set screw not tight.

 

 

 

 

 

 

 

 

 

Sanded surface not

1.

Table/miter guage not square to sanding

1.

Square table/miter guage relative to sanding belt/

square.

 

 

 

 

belt/disc.

 

disc (Page 25).

 

 

 

 

 

 

 

 

 

 

Deep

 

sanding

1.

Sandpaper damaged or clogged.

1.

Clean/replace sanding surface.

 

grooves or scars in

2.

Sandpaper too coarse for desired finish.

2.

Use a finer grit sanding surface.

workpiece.

 

3.

Workpiece sanded across grain.

3.

Sand with the grain.

 

 

 

 

 

 

 

 

 

 

 

 

4.

Too much sanding force on workpiece.

4.

Reduce pressure on workpiece while sanding.

 

 

 

 

5.

Workpiece held still against the belt/disc.

5.

Keep workpiece moving across sanding surface.

 

 

 

 

 

 

Sanding

grains

1.

Sanding belt/disc has been stored

1.

Store sanding materials away from heat or damp

easily

 

rub

off

 

incorrectly.

 

conditions; store flat, not folded or bent.

sanding surface.

 

2.

Sanding surface has been damaged.

2.

Replace sanding material.

 

 

 

 

 

 

 

 

 

 

 

 

Sanding

surface

1.

Too much pressure against belt/disc.

1.

Reduce pressure on workpiece while sanding.

clogs

quickly

or

2.

Sanding softwood or has paint/varnish.

2.

Use different stock; change/clean sanding material

burns.

 

 

 

 

 

 

often.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Burn

marks

on

1.

Using too fine of sanding grit.

1.

Use a coarser grit sanding belt/disc.

workpiece.

 

2.

Using too much pressure.

2.

Reduce pressure on workpiece while sanding.

 

 

 

 

3.

Work held still for too long.

3.

Do not keep workpiece in one place for too long.

 

 

 

 

 

 

 

Glazed

 

sanding

1.

Sanding wet stock.

1.

Dry stock proper before sanding.

surfaces.

 

 

2.

Sanding stock with high residue.

2.

Use different stock; change/clean sanding material

 

 

 

 

 

 

 

often.

 

 

 

 

 

 

 

 

 

 

-24-

 

 

 

 

 

 

Model H8192 1" Belt/8" Disc Combo Sander

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Grizzly H8192 owner manual Service, Troubleshooting