Operation - Porter-Cable 837 Instruction Manual

Quik-change blade clamp, charger and battery pack
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OPERATION

USING THE SAW
BEFORE YOU START TO WORK
Select the blade best suited for the workpiece. For greatest economy, use
the shortest blade suitable for the thickness of the workpiece.
Be sure that the workpiece is rigid. Securely clamp small workpieces in a
bench vise or to the work table. As the work progresses in scroll or curved
cut-out pieces, adust the material to accommodate the movement of the
saw. If the workpiece is large enough, you can hold it only by hand across
saw horses. The saw cuts freely with only slight feed pressure. Forcing the
saw will not make it cut faster.
SAWING WOOD
The Cordless Reciprocating Saw is used much the same as a hand saw in
that it is moved toward you during the cutting operation. However, since the
blade cuts on the up-stroke (instead of the down-stroke as in the case of the
hand saw), the good or finish side of the work should face down during the
cutting operation.
PLUNGE CUTS
The Cordless Reciprocating Saw can be used for plunge cutting wood,
plywood, wallboard, and plastic materials. DO NOT attempt to plunge cut
metal.
Clearly mark the line of cut on the workpiece. Grasp the front housing with
one hand and the rear handle with your other hand.
To start the cut, rest the saw on the shoe bracket, align the blade with the
marked line of cut. (Fig. 13). Prevent the blade from touching the workpiece.
Start the saw. Using bracket as a pivot point, roll the saw forward by raising
the rear handle (Fig. 14) When the blade cuts through the workpiece,
continue raising the rear handle until the saw is perpendicular to the work
surface. Move the blade along the line of cut.
Fig. 14
Fig. 13
SAWING METAL
When cutting angle, H-beam, I-beam, channel, etc., start the cut on the
surface where the greatest number of teeth will contact the work. To make a
pocket cut, drill a starting hole first. To extend blade life, cutting oil can be
applied to the work surface along the line of the cut.
15

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