Operation - Power Fist 8109670 Guide De L'utilisateur

8109217 manual 10/15/09

Operation

ALWAYS WEAR PROTECTIVE EYE WEAR WHEN USING THE GRINDER
Keep a steady moderate pressure on the work piece and keep it moving at an even pace for
smooth grinding. Pressing too hard overheats the motor and prematurely wears down the
grinding wheels. Note the original bevel angle on the item to be sharpened and try to
maintain this shape. The grinding wheel should rotate into the object being sharpened. Keep
a tray filled with water and dip your work into it regularly to prevent overheating.
Scissors
If possible, take the scissors apart to make the sharpening operation easier and
safer. Remove material only from the outside surface and work from the heavy end
of the blade toward the tip.
Knives
Remove metal from both faces of most knives, working from the heavy end of the
blade toward the tip.
Screwdrivers
The end of a properly sharpened screwdriver will be a perfect rectangle, absolutely
flat and perpendicular to the center line of the shank. The two sides and two faces
will taper outward from the edge of the shoulder or shank. They should be flat with
intersecting faces perpendicular. Hold each face of the screwdriver against the
wheel to true it up, then ease the end straight into the stone to grind it true.
Twist Drill Bits
Drill bits are best sharpened using a sharpening jig. Begin on one side of the point
at the existing angle and then twist the bit while maintaining a constant angle with
the grinding surface. Sharpen only the tip. This technique requires considerable
practice.
Lawn Mower Blades
Lawn mower blades are usually sharpened on only one side and dressed up slightly
on the other side. After sharpening be sure to balance the blade by removing
additional material from the heavy end. Unbalanced blades can cause serious crank
shaft damage to your lawn mower. Always remove spark plug wires from the
mower before servicing the blades to prevent accidental starting.
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