Problem Possible Causes Solutions
Tool will not start.
Tool operates slowly.
Performance
decreases over time.
Overheating.
Tool does not sand
or polish effectively.
Excessive noise
or rattling.
Carbon brushes worn or
damaged.
Internal damage or wear.
(Carbon brushes or bearings, for
example.)
Replace brushes..
Have technician service tool.
1. Cord not connected.
2. No power at outlet.
3. Internal damage or wear.
(Carbon brushes or switch,
for example.)
1. Excess pressure applied to
work piece.
2. Power being reduced by
long or small diameter
extension cord.
1. Forcing tool to work too fast.
2. Blocked motor housing
vents.
3. Motor being strained by long
or small diameter extension
cord.
1. Disc accessory may be
loose on spindle.
2. Disc accessory may be
damaged, worn or wrong
type for the material.
3. Wax sprays off polishing pad.
1. Be sure disc accessory arbor is
correct and outer flange/arbor
nut is tight.
2. Check condition and type of disc
accessory. Use only proper type of
disc accessory in good condition.
3. Reduce RPM to minimum setting.
1. Allow tool to work at its own rate.
2. Wear ANSI-approved safety
goggles and NIOSH-approved
dust mask respirator while
blowing dust out of motor using
compressed air.
3. Eliminate use of extension cord.
If an extension cord is needed,
use one with the proper
diameter for its length and load.
See Extension Cords in
GROUNDING section.
1. Check that cord is plugged in.
2. Check power at outlet. If outlet
has no power, turn off tool and
check circuit breaker. If breaker
is tripped, make sure circuit is
right capacity for tool and circuit
has no other loads.
3. Replace carbon brushes and/ or
have technician service tool.
1. Decrease pressure, allow tool to
do the work.
2. Eliminate use of extension cord.
If an extension cord is needed,
use one with the proper
diameter for its length and load.
See extension cords in
GROUNDING section.
CARE AND MAINTENANCE
9
10
TROUBLE SHOOTING
NOTICE: Procedures not specifically
explained in this manual must
be performed only by a qualified
technician.
WARNING: TO PREVENT
SERIOUS INJURY FROM A
ACCIDENTAL OPERATION:
Release the trigger and unplug
the tool from its electrical outlet
before performing any inspection,
maintenance, or cleaning
procedures.
WARNING: TO PREVENT SERIOUS
INJURY FROM TOOL FAILURE:
Do not use damaged equipment. If
abnormal noise or vibration occurs,
have the problem corrected before
further use.
1. BEFORE EACH USE, inspect the
general condition of the tool for:
• Loose hardware
• Misalignment or binding of
moving parts,
• Cracked or broken parts,
• Damaged electrical wiring, and
• Any other condition that may
affect its safe operation.
2. AFTER USE, wipe external surfaces
of the tool with clean cloth.
3. Periodically blow dust and grit
out of the motor vents using dry
compressed air. Wear ANSI-
approved safety goggles and
NIOSH-approved breathing
protection while doing this.
4. Periodically recheck all nuts, bolts,
and screws for tightness.
5. Remove foam pad from backing pad
when polisher/sander is not in use.
This will allow backing pad to dry and
retain its original shape. Wash with
mild soap and water before storing.
6. The polishing bonnet may be machine
washed in cold water with mild detergent.
Do not put in the dryer.
7. Use only a clean cloth and mild
detergent to clean the body of the
polisher. Do not use solvents. Do not
immerse any part of the tool in liquid.
8. CARBON BRUSH MAINTENANCE.
The carbon brushes may require
maintenance when the motor
performance of the tool decreases
or stops working completely.
To maintain the brushes:
A. Remove the carbon brush cover
on each side of the motor housing.
B. Remove the carbon brushes from
the housing. Keep track of which
orientation the old carbon brushes
were in to prevent needless wear if
they will be reinstalled.
C. If either carbon brush is worn
down by more than 1/2, replace
them both.
D. To clean old carbon brushes
before reusing them, rub the contact
areas with a pencil eraser.
E. Reinsert the old carbon brushes
in the same orientation to reduce wear.
F. When installing, make sure the
carbon portions of the brushes
contact the motor armature, and
that the springs face away from the
motor. Also, make sure the springs
operate freely.
G. Replace the carbon brush Covers.
Do not overtighten.
NOTE: New carbon brushes tend to
spark when first used until they we
and conform to the motor’s armature.
WARNING If the supply cord of this
power tool is damaged, it must be
replaced only by a qualified
service technician.
