Unisaw chirp

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Forum topic by dawoodguy posted 09-15-2008 03:41 PM 930 views 0 times favorited 5 replies Add to Favorites Watch
View dawoodguy's profile


6 posts in 3780 days

09-15-2008 03:41 PM

Topic tags/keywords: question tablesaw

I’m not sure if this is the correct forum but….when I power down my Uni just before the blade stops spinning I hear a “chirp” noise. I do not hear any noise while it is fully powered & while cutting. I thought at first it was the new zero clearance plate I made, but no. Anyone else experience this? My first thought is arbor bearing :-(
BTW, what a neat site….I have received several warm welcomes from other members of the site. Thanks for letting me be included.

5 replies so far

View GaryK's profile


10262 posts in 4223 days

#1 posted 09-15-2008 03:45 PM

I can’t say that I’ve ever heard that from my Unisaw.

Sounds like something needs some lube though. Check your manual to see what gets grease and when gets oil.

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View ajosephg's profile


1880 posts in 3796 days

#2 posted 09-15-2008 04:03 PM

Some electric motors have a centrifugal switch to switch from start to run. If yours does it may be the switch clicking as the motor winds down. Maybe you cold take the belts off and isolate the problem that way.

-- Joe

View cmaeda's profile


205 posts in 3789 days

#3 posted 09-16-2008 06:52 AM

I had this same problem with my Delta contrator’s saw. The culprit was the belt, it rubbed against the top but only when it powered down when the blade was set at full height.
Like Joe said, try running just the motor itself.
Add the belts, no blade.
Try putting the saw in different positions, etc.
And narrow down the culprits.

View dawoodguy's profile


6 posts in 3780 days

#4 posted 09-17-2008 02:17 AM

I went to the shop tonite armed with the above suggestions, which, BTW, I thank you for your help. So I get started…..belts off. Right away I notice one of the belts is fraying….still looking though I find the arbor is OK (whew)....flip the motor on and detect a little squeel….turn it off and the chirp returns….I turned the motor shaft and bearings feel ok & no squeek…..powered the motor back on & started to tilt…squeeeeel. And the noise is coming from the end of the motor….I take the cover off & find the impeller loose…Cleaned everything up, tightened the impeller down & saw is back to normal….almost anyway. I’ve got the belts ordered. Thanks again for your suggestions!

View ajosephg's profile


1880 posts in 3796 days

#5 posted 09-17-2008 03:35 AM

So happy for you. Fortunate that you were prompt in making the repair quickly. If you had waited longer it is possible that the motor could have incurred expensive damage.

-- Joe

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