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This page contains replacement guides and a troubleshooting section for the Craftsman Scroller Saw Double Insulated 5/8" Stroke-Variable Speed (Model 315.10721). This handsaw was manufactured in 1979 by Sears, Roebuck and Co.

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Why is the trigger on the saw sticking?

When the trigger on the saw is pressed to turn it on, the button sticks and it stays on

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That is a very dangerous situation. I would stop using the saw until it was repaired.

If there's no physical reason (crud or debris in the return) the switch is likely shorting out in the on position.

If this answer is acceptable please remember to return and mark it.

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Riley Hilliker crwdns2934231:0crwdne2934231:0
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