15
4
1
/
2
" Angle Grinder - Owner's Manual
ASSEMBLY AND OPERATING
(continued)
GRINDING – cont’d
For best results keep the grinder tilted at an angle between 5° and 15° and continuously
moving at a steady, consistent pace. Move the grinder back and forth or up and down
over the work area. Keep the grinder moving so that an excessive amount of material is
not removed from one area. If the grinder is held in one spot too long, it will gouge and
cut grooves in the workpiece. If the grinder is held at too sharp an angle, it will gouge the
workpiece because of the concentration of pressure on a small area.
Use just enough pressure to keep the grinder from chattering or bouncing. Heavy pressure
will decrease its speed and put a strain on the motor. Normally, the weight of the tool
alone is adequate for most grinding jobs. Use light pressure when grinding jagged edges
or loose bolts where there is potential for the grinder to snag on the metal edge.
MAINTENANCE
WARNING: When servicing, use only identical replacement parts. Use of any other part
may create a hazard or cause product damage.
DO NOT abuse power tools. Abusive practices can damage the tool as well as the
workpiece.
CARBON BRUSH MAINTENANCE.
The carbon brushes may require maintenance when
the motor performance of the tool decreases or stops working completely.
Carbon brushes are internal to the motor housing, and should only be replaced by a
qualified service technician.
a) To replace brushes, remove screw from center of rear housing (45) and slide the housing off.
b) Loosen screws holding brush holder (33) in place. Then remove carbon brush (35) from holder.
c) Insert new carbon brush into holder, reinsert holder and fasten into place with screws.
Make sure the carbon portions of the carbon brushes contact the motor armature,
and that the springs face away from the motor.
When replacing carbon brushes both brushes must be replaced. Repeat steps "b" and
"c" for the second brush.
Slide rear housing back into place and fasten securely with screw.
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.