MAINTENANCE
TROUBLE SHOOTING
14
Note:
New carbon brushes tend to spark when
first used until they wear 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.
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.
g. Replace the Carbon Brush Covers. Do not over
tighten.
7.
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.
8.
Problem
Tool will not start.
Tool operates slowly.
Performance
decreases over time.
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 workpiece.
2. Power being reduced by long or
small diameter extension cord.
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered,
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.
Possible Causes
Likely Solutions
