Reply by CaptainKlutz

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Posted on What is causing my band saw to bog down even on the simplest cuts?

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4445 posts in 2574 days

#1 posted 03-05-2021 01:06 PM

It also sounds sick …. – sawdustmaker1961
Define sick?
Growl, screech, whine, clunk, etc….
Specifically where does noise originate from?

Band saw is pretty simple.

With blade removed, spin the upper wheel.
If tight, growls, grinds, makes any loud noises, or takes long time to coast to a stop; time for new bearings.

Turn on saw. Motor should not make any sick noises without blade either.

- Are belts loose or dirty? Are they slipping?
Could be belt tension issue, or need new belts.

Disconnect power. Remove the drive belt(s) between motor and lower wheel.
Reconnect power and turn on motor.
If it makes a soft click in 1-2 seconds, and then a subtle purr/whine, all is good.
If the there is no click, or it takes longer than 3-4 seconds to come to speed; might be issue with centrifugal switch or start capacitor.
If it growls, or screeches at all; is time for new motor bearings.

With belts removed, spin lower wheel.
Should be almost silent, spinning smoothly, just like upper wheel.

If nothing makes any noise with blade off, try a different blade. :)

My SWAG with 26 year old band saw is 1st belts, 2nd the bearings.

Best Luck!

-- If it wasn't for bad luck, I wouldn't have no luck at all, Doom, despair, agony on me… - Albert King - Born Under a Bad Sign released 1967

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