Re: Unisaw motor bearings

On Tue, 7 Feb 2006 18:00:29 -0500, "wayne mak"
<wayneREMOVETHIS@xxxxxxxxxxxxx> wrote:

Has anyone ever done the bearings in a delta unisaw motor, this would be a
10 year old saw so its a newer style. My saw has made a noise for the past
month or so and I think its the motor. there is some play/runout on the
motor shaft.



Yes, it is not that hard to do if you are careful.

Disconnect all connections in the power connection box on the motor
case

Disconnect wiring to the capacitors and remove them. Discharge the
capacitors first so you don't get a pop.

Remove the bell housing and fan. newer models have a snap pin holding
the fan on.

Take some fingernail polish or paint and put a dab on the case to
endcap joint at several spots so you can put it back in perfect
alignment, although it probably isn't that important.

remove the nuts holding the tie rods on.

carefully pry off the end caps.

I cant remember if you have to disconnect the centrifugal switch. I
was taking mine down further so I had to. You may have to to get to
the fan end bearing.

Bearings are slip fit to the end cap (OD) and press fit to the shaft
(ID) so you need a small gear puller to get the old ones off.

Put on new bearings. I tapped them on with a wooden dowel that had a
hole cut in the center to clear the shaft.

reassemble in reverse order.

Good idea to take digital pictures of your connections as you go so
that you can get it back like it was. When you assemble the end caps,
make sure you spin it to ascertain that you did not inadvertantly
position a wire that is in contact with the cent. switch.

good luck

Frank


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