BM 1609929H54 08-06 8/3/06 11:44 AM Page 10
Start the tool before applying to work and letswitch OON� and OOFF� while the tool is
the tool come to full speed before contactingunder load; this will greatly decrease the
the workpiece. Lift the tool from the workswitch life.
before releasing the switch. DO NOT turn the
MOTOR HOUSING RELEASE LEVER
Model 1894-6 only
Your tool is equipped with a motor housing
release lever that will allow you to rotate the
spindle in either direction 90u. To use this
feature, pull release lever in direction of
arrow to release housing, and rotate housing
until it clicks into place.
Grinding Operations
SELECTING GRINDING WHEELSGRINDING TIPS
Before using a grinding wheel,Efficient grinding is achieved by controlling!WARNING
be certain that its maximumthe pressure and keeping the angle between
safe operating speed is not exceeded by thewheel and workpiece at 10! to 15!. If the
nameplate speed of the grinder. Do notwheel is flat, the tool is difficult to control. If
exceed the recommended wheel diameter.the angle is too steep, the pressure is
DISC GRINDING WHEELSconcentrated on a small area causing
Grinding wheels should be carefully selectedburning to the work surface.
in order to use the grinder most efficiently.Excessive or sudden pres-
Wheels vary in type of abrasive, bond,sure on the wheel will slow!WARNING
hardness, grit size and structure. The correctgrinding action and put dangerous stresses
type of wheel to use is determined by the job.on the wheel.
Use disc grinding wheels for fast grinding ofWhen grinding with a new wheel be certain to
structural steel, heavy weld beads, steelgrind while pulling tool backwards until wheel
casting, stainless steel and other ferrousbecomes rounded on its edge. New wheels
metals.have sharp corners which tend to Obite� or cut
into workpiece when pushing forward.
Sanding Operations
SELECTING SANDING DISCSanding discs range in grit from 16 (very
Sanding discs are made of extremely hardcoarse) to 180 (very fine). To obtain best
and sharp aluminum oxide grits, phenol-resinresults, select sanding discs carefully. Many
bonded to a sturdy fiber backing for fastjobs require the use of several grit sizes and
heavy-duty service and long life. The discsat times both Oopen coat and closed coat�
vary as to size and spacing of the abrasivediscs are required to get the job done faster.
type HSee chart for application examples.
materials and on paint or varnish. CLOSED
type K
stone, marble and other materials.
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ACEC
