Mount Sander - Craftsman 351.215421 Operator's Manual

• Make sure abrasive belt always tracks properly.
Correct tracking gives optimum performance.
After turning switch on, always allow belt to come up
to full speed before sanding or grinding.
Be sure motor runs clockwise on disc side. Abrasive
belt must travel down.
Avoid kickback by sanding in accordance with the
directional arrows.
Keep your hands clear of abrasive belt, disc and all
moving parts.
For optimum performance, do not stall motor or
reduce speed. Do not force the work into the abrasive.
Support workpiece with belt table when sanding with
belt, with disc table when sanding with disc.
Never push a sharp corner of the workpiece rapidly
against the belt or disc. Abrasive backing may tear.
Replace abrasives when they become loaded
(glazed) or frayed.
When grinding metal, move workpiece across abra-
sive to prevent heat built up.
Never attempt wet sanding. If the workpiece
becomes too hot to handle, cool it in water.
MOUNT SANDER
During operation the sander may have a tendency to slide
or move about on the bench or table. It is recommended
to mount the sander onto a stand (see "Recommended
Accessories", page 13) or to a bench top.
ADJUSTING BELT TABLE
Refer to Figure 7.
WARNING: Disconnect sander from power source
before making any adjustments.
• To adjust belt table angle, loosen the socket head
bolt and adjust table to desired angle. Use a combi-
nation square to set belt table at 45 ° or 90 ° from
abrasive belt.
• Adjust for 1/16" m aximum clearance between the belt
and the table.
Secure table position by tightening bolt.
Socket _--_-_-_ Belt Cover
Head Bolt
j-_ __4b K n°b.
i_.._. Belt Platen Belt Table
_ Socket Head Bolt
Figure 7 - Adjustments
REPLACING ABRASIVE BELT
Refer to Figures 7 and 8.
WARNING: Disconnect sander from power source
before making any adjustments.
Sanding belt should be replaced when worn, torn, or
glazed.
Loosen and remove two knobs from belt cover.
Remove belt cover.
Loosen socket head bolt and move belt table parallel
to belt.
Release belt tension by pulling down on handle
assembly. Slide old belt off the drive and tracking
wheels.
NOTE: There may be an arrow on the inside of the belt.
The arrow should point down toward the belt table to
ensure that the splice in the belt will not come apart.
Pull down on the handle and slide new belt over the
drive and idler wheels. Center belt on wheels.
Rotate belt by hand to check tracking. Belt should
ride centered on wheels.
If belt does not ride centered on wheels, adjust belt
tracking as described in the next section.
Replace belt cover and secure it with two knobs.
Reset belt table to be at the desired angle, and
secure it by tightening the bolt.
Idler Wheel
Handle
Wheel
Figure 8 - Replace Abrasive Belt
TRACKING ABRASIVE BELT
Refer to Figure 9, page 7.
Test the tracking. Plug in power cord. Turn switch ON
and immediately OFR If the abrasive belt is centered
on wheels and did not move to the right or left, it is
tracking properly. If the belt moved to the right or left,
adjustment is necessary.
To adjust the tracking wheel, loosen the locking nut
on adjusting bolt. Use a 4mm hex wrench to turn
adjusting bolt.
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