Power Fist 9073925 Mode D'emploi page 15

V1.0
Problem(s)
Performance
decreases over
time.
Overheating
Machine slows
when operating.
Sanding grit
does not remain
on the sanding
drum.
Deep grooves
appear in the
workpiece.
The sanding
drum is clogged.
Page 15
VARIABLE-SPEED ELECTRIC DRUM SANDER/POLISHER
Possible Cause(s)
1. The sanding drum is dull or
damaged
2. Carbon brushes worn or
damaged.
1. Forcing machine to work too
fast.
2. The sanding drum is dull or
damaged
3. Blocked motor housing vents.
4. Extension cord is too long or
wire gauge is too thin.
1. Low voltage due to
insufficiently powered circuit.
2. Feed rate into the sanding
drum too great.
1. Exposed to dry conditions that
have caused the adhesive to
become brittle.
2. The sanding drum is damaged
or creased.
1. Sanding grit is too coarse.
2. Sanding across the wood grain.
3. Excessive pressure against the
sanding drum.
4. The drum sander is held too
long in one place.
1. Sanding a soft wood.
2. Excessive pressure against the
sanding drum.
Suggested Solution(s)
1. Keep the sanding drum sharp.
Replace as needed
2. Clean the commutator and
carbon brushes (see Carbon
Brush Maintenance).
1. Allow machine to work at its
own rate.
2. Keep the sanding drum sharp.
Replace as needed
3. Blow dust out of motor using
compressed air.
4. Eliminate the use of an
extension cord. If an extension
cord is needed, use one with
the proper diameter for its
length and load.
1. Attach to power circuit with
adequate amperage.
2. Slow rate of feed into the
sanding drum.
1. Store the sanding drum in
a location that does not
have extreme temperature or
dryness.
2. Store the sanding drum flat.
1. Change to a finer grit.
2. Sand with the wood grain.
3. Reduce pressure on workpiece
while sanding.
4. Move the drum sander more
often while sanding.
1. Clean the sanding drum with a
dressing stick frequently.
2. Reduce pressure on workpiece
while sanding.
www.princessauto.com / 1-800-665-8685
9073925