Maintenance and servicing – Chicago Electric 97593 User Manual
Page 11
SKU 97593
For technical questions, please call 1‑800‑444‑3353.
Page 11
MAINTENANCE AND
SERVICING
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn the Power Switch of the
tool to its “OFF” position and
unplug the tool from its
electrical outlet before
performing any inspection,
maintenance, or cleaning
procedures.
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.
Cleaning, Maintenance, and
Lubrication
1.
BEFORE EACH USE, inspect the
general condition of the tool. Check
for loose screws, misalignment or
binding of moving parts, cracked or
broken parts, damaged electrical wir-
ing, and any other condition that may
affect its safe operation.
2.
AFTER USE, clean external surfaces
of the tool with clean cloth.
3.
CARBON BRUSH MAINTENANCE.
The carbon brushes may require
maintenance when the motor perfor-
mance of the tool decreases or stops
working completely. To maintain the
brushes:
a. Remove the brush cap (14) on each
side of the motor housing.
b. Remove the carbon brushes (12)
from the housing.
Keep track of
which orientation the old carbon
brushes were in to prevent need‑
less wear if they will be rein‑
stalled.
c. If either carbon brush is worn down
by more than 1/2, replace
both car-
bon brushes.
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 the carbon brushes,
make sure the carbon portions of the
carbon brushes contact the motor
armature, and that the springs face
away from the motor. Also, make
sure the springs operate freely.
g. Replace the brush caps. Do not
overtighten.
Note: New carbon brushes tend to spark
when first used until they wear and
conform to the motor’s armature.
4.
WARNING! If the supply cord of
this power tool is damaged, it must
be replaced only by a qualified
service technician.