Craftsman 320.18780 Operator's Manual download pdf (Page 16)

K!CK_-BACK_,WHAT CAUSESIT AND WAYS TO, HELP PREV_NT IT (Fig.4) :

Fig. 4

Correct Blade Depth

blade does not extend more

than 1/4 in;'below workpiece

Blade is Set Too Deep

The Causes of Kickback

1.... Kickback is a sudden reaction

to a pinched, bound, or

misaligned saw blade, which

causes,an uncontrolled saw to

lift up and out of the workpiece

and towaYd the operator_.

2. When the blade is pinched

or bound tightly by the kerf

closing down, the blade stalls

and the motor reaction drives

the uni_,apidly back towards

the operator.

If the blade becomes twisted

misaligned in the cut, the_ .

-_ _teeth at.the back edgeof the

blade can dig into the top

surface .of the wood. This

cause s the blade to climb

_,- out of!he_kerf and jump baok

towards the operator.

Fig. 5 : °

Right

,°

Fig. 5a

Wrong

i r_. ' , . , , _.

Sawing into knots or nails

in the workpiece can

cause Kickback.

Sawing into wet or warped

lumber can cause Kickback

(Fig. 5a).

Forcing a cut or not supporting the workpiece correctly can cause Kickback

(Fig. 5a).

Kickback is a result of tool misuse and/or incorrect operating procedures or

conditions. It can be avoided by taking the proper precautions.

18780; ManuaLRevised_09-0513 Page 16

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Craftsman 320.18780 Operator's Manual Page 16

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