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Bastc operation of the table saw, Causes of kickback, Avoiding kickback – Craftsman 315.228310 User Manual

Page 33: Basic operational the table saw -40, Operation

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OPERATION

BAStC OPERATION OF THE TABLE SAW

A table saw can be used for straight-line cutting
operations such as cross cutting, ripping, mitering,
beveling, and compound cutting. It can make dado or
molding cuts with optional accessories.

The three-prong plug must be plugged into a match­
ing outlet that is properly installed and grounded

according to all local codes and ordinances. Improper
connection of the equipment can result in electric
shock. Check with an electrician or service personnel
if you are unsure about proper grounding. Do not

modify the plug; if it will not fit the outlet, have the

correct outlet installed by a qualified electrician. Refer

to the Electrical page of this manual.

Note: This table saw is designed to cut wood and

wood composition products only.

CAUSES OF KICKBACK

Kickback can occur when the blade stalls or binds,

kicking the workpiece back toward you with great

force and speed. If your hands are near the sawblade,

they may be jerked loose from the workpiece and may
corrtact the blade. Obviously, kickback can cause

serious injury, and it is well worth using precautions to
avoid the risks.

Kickback can be caused by any action that pinches

the blade in the wood, such as the following:

■ Making a cut with incorrect blade depth

■ Sawing into knots or nails in the workpiece

■ Twisting the wood while making a cut

■ Failing to support work

■ Forcing a cut

■ Cutting warped or wet lumber

■ Using

the

wrong

blade

for

the type

of

cut

■ Not following correct operating procedures

■ Misusing the saw

■ Failing to use the anti-kickback pawls

■ Cutting with a dull, gummed-up, or improperly set

blade

AVOIDING KICKBACK

■ Always use the correct blade depth setting. The

top of the blade teeth should clear the workpiece

by 1/8 in. to 1/4 in.

■ Inspect the work for knots or nails before beginning

a cut. Knock out any loose knots with a hammer.
Never saw into a loose knot or nail,

■ Always use the rip fence when rip cutting and the

miter gage when cross cutting. This helps prevent

twisting the wood in the cut.

■ Always use clean, sharp, and properly-set blades.

Never make cuts with dull blades.

■ To avoid pinching the blade, support the work

properly before beginning a cut.

■ When making a cut, use steady, even pressure.

Never force cuts.

■ Do not cut wet or warped lumber.

■ Always hold your workpiece firmly with both hands

or with pushsticks. Keep your body in a balanced
position to be ready to resist kickback should it

occur. Never stand directly in line with the blade.

■ Use the right type of blade for the cut being made.

CUTTING AIDS

See Figure 42.

Pushsticks are devices used for safely pushing a

workpiece through the blade instead of using your
hands. They can be made in various sizes and

shapes from scrap wood to use in a specific project.

The stick must be narrower than the workpiece, with a
90 notch in one end and shaping for a grip on the
other end.

A pushblock has a handle fastened by recessed
screws from the underside, Use it on non-through
cuts.

CAUTION:

Be sure the screw is recessed to

avoid damaging the saw or workpiece.

PUSHBLOCKS

0

Fig.42

A featherboard is used when it is not practical to use

the miter gage, usually due to the size of the
workpiece. The end is angled, with a number of short

kerfs to give a friction hold on the workpiece. Use a

C-clamp to lock it in place on the table. Test that it

could resist kickback.

WARNING:

Place the featherboard against the

uncut portion of the workpiece, to avoid kickback.

33

CRAFTSMAN* TABLE SAW 315.228310