Harbor Freight Tools Chicago 46237 - Manual (Page 15)

SKU 46237 For technical questions, please call 1-800-444-3353. Page 15
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
BeFOre eAcH uSe, 1. 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.
Periodically blow dust and grit out
2.
of the motor vents using dry com-
pressed air. Always wear safety
glasses when performing this mainte-
nance operation.
AFter uSe, 3. clean external surfaces
of the tool with clean cloth. Never use
solvents or harsh cleaners as they
may damage the housing. to pre-
vent electrical shock, do not allow
water or other liquids to enter the
motor vent holes.
cArBOn BruSH (46) mAinte-
4.
nAnce.
The carbon brushes may require
maintenance when the motor perfor-
mance of the tool decreases or stops
working completely. To maintain the
brushes:
Unscrew the Brush Cap (45) using a.
a flat head screwdriver (sold sepa-
rately).
Pull Brush from the Plastic Housing
b.
(35). Keep track of which orienta-
tion the old carbon brushes were
in to prevent needless wear if they
will be reinstalled.
If either carbon brush is worn down
c.
by more than 1/2, replace both car-
bon brushes.
To clean old carbon brushes before
d.
reusing them, rub the contact areas
with a pencil eraser.
Hold the spring clips to the side and
e.
reinsert the old carbon brushes in
the same orientation to reduce wear.
When installing the carbon brushes,
f.
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.
g.
Replace the Brush Caps. Do not h.
overtighten.