Chicago Electric 98107 - Manual (Page 17)

Page 17 For technical questions, please call 1-800-444-3353. SKU 98107
troubleshooting
problem possible causes likely solutions
Tool will not start No power at outlet. 1.
Cord not connected. 2.
Carbon Brushes may be worn or 3.
damaged.
Check power at outlet. 1.
Check that cord is plugged in. 2.
Inspect Carbon Brushes and replace if 3.
necessary.
Tool operates
slowly or
erratically.
Carbon Brushes may be worn or 1.
damaged.
Excess pressure applied to
2.
workpiece.
Inspect Carbon Brushes and replace if 1.
necessary.
Decrease pressure, allow tool to do
2.
the work.
Tool does not
grind, sand or
brush effectively.
Disc accessory may be loose on 1.
Spindle. Check tightness of Outer
Flange Arbor Nut or threaded disc
accessory on Spindle.
Disc accessory may be damaged,
2.
worn or wrong type for the
material.
Be sure disc accessory is of correct 1.
dimension and Outer Flange Arbor Nut
is tight.
Check condition and type of disc 2.
accessory. Use only proper type of
disc accessory in good condition.
Follow all safety precautions whenever diagnosing or servicing the
tool. disconnect power supply before service.
side while you remove the carbon
brushes. Keep track of which ori-
entation the old carbon brushes
were in to prevent needless wear
if they will be reinstalled.
If either carbon brush is worn down
e.
by more than 1/2, replace both car-
bon brushes.
To clean old carbon brushes before
f.
reusing them, rub the contact areas
with a pencil eraser.
Hold the spring clips to the side and
g.
reinsert the old carbon brushes in
the same orientation to reduce wear.
When installing the carbon brushes,
h.
make sure the carbon portions of
the carbon brushes contact the mo-
tor armature, and that the indented
portions of the brushes are posi-
tioned where the springs contact.
Also, make sure the springs operate
freely.
Reconnect the Carbon Brush Leads.
i.
Replace the Brush Caps and j.
Screws. Do not overtighten.
note: New carbon brushes tend to spark
when first used until they wear and
conform to the motor’s armature.
5. warning! if the supply cord of
this power tool is damaged, it must
be replaced only by a qualified
service technician.