Power hacksaw – powerful banging when running

[ell81Participant @ell81]

So, it’s a rapidor manchester power hacksaw.

One the end of the forward stroke, it makes a loud banging sound, like a hard thud, and is so powerful it rocks the whole saw, which as you know is very heavy.

It still cuts OK, just unacceptably loudly because of this banging.

I have tightened up the nuts on the cover for the hacksaw slides, which hasn’t stopped it.

It runs quietly when the cam is not connected to the motor and saw spindle.

But as I say, when the cam is connected with the arm that moves the hacksaw slides, there’s a huge banging sound.

Any ideas of what it could be?

All bolts are tight, I checked them.

Thanks.

[BazyleParticipant @bazyle]

CAm? what is this cam?
Anyway sounds like a worn bush.

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