Reply by mc79

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Posted on Delta Unisaw Operating Noise

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23 posts in 2579 days

#1 posted 06-08-2013 03:32 PM

”could it be the belts have some ‘hot spots’ on them
(they could be stiff and settled into a permanent figure
that is not round at rest
but more oval in shape by now)”


I did remove the belts and they do seem stiff and have settled into oval shapes (picture below)...I started the motor by itself with no belts on (video) below and did not hear the noise. So does that isolate to either arbor or belts? The belts were on the pulleys when I received it so it has been sitting like that for 6-7 years unused. Does it sound like this is the problem and should I replace those before examining the arbor (i did check the set screws on the arbor pulley and they both seemed to be tight)? Anyone have any recommendations on types of belts that are good quality and reasonably priced? Thanks!

Oval Belts:

Running Noise with No Belts on:

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