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Delta 34-670 - Replacing Bearings

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Forum topic by PageOne posted 07-13-2017 03:34 PM 351 views 0 times favorited 4 replies Add to Favorites Watch
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PageOne

2 posts in 156 days


07-13-2017 03:34 PM

Topic tags/keywords: delta 34-670 table saw bearings pulley replace tablesaw

Hey all! I’m new to the forum – thanks for taking a look at my question!

I just picked up a Delta 34-670 table saw off CL. Of course, it worked great when I tried it at the guys’ house, but I get it home, and now it won’t turn on.

My buddy and I checked/confirmed the switch and the breaker on the unit are functioning properly. In taking out the strange little ‘self-contained’ belt-driven motor assembly, we’re pretty certain that at least one of the two bearings on the arbor/shaft are shot (typical grinding/rattling that sounds like a bad bearing).

So, I ordered a couple bearings. Easy fix, right? Just pull the shaft and replace the bearings. Nope, not so easy. I am having the hardest time getting the pulley off the end of the arbor/shaft. I’ve removed the snap ring at the end, soaked it with P’B, tried flat-irons…still can’t get the thing to budge.

For reference, the part I’m having trouble with is #225 on this schematic:
http://www.deltamachineryparts.com/shop/34-670-2/#

I tried using a couple different pulley pullers, but with the pulley so close to the cast aluminum casing, I can’t get the pullers to grip on to anything. And I’m a little nervous about cracking that casing on such an old motor.

If I can get these bearings replaced, I think I’ll have a good saw for a good price ($100 plus $25 for the replacement bearings). Otherwise, caveat emptor, I guess. I’d rather not buy an entire replacement motor at this point. I’m hoping that I’m overlooking something silly. Does anyone have experience with this model of saw? Any suggestions?

-- Steve from Maine, USA


4 replies so far

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Rich

1984 posts in 428 days


#1 posted 07-13-2017 04:03 PM

Here’s a link to another similar thread for the same saw on LJ. Not sure if it will be of any help though.

http://lumberjocks.com/topics/11992

-- No matter how much you push the envelope, it'll still be stationery.

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MrUnix

6010 posts in 2037 days


#2 posted 07-13-2017 04:29 PM

I would not use a 3 jaw puller on it, as you could damage the pulley. Instead, there are two threaded holes on the face of the pulley that you use. Do you have a flywheel puller or a bearing splitter set? Maybe your local auto parts store will let you borrow one.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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PageOne

2 posts in 156 days


#3 posted 07-13-2017 06:39 PM

Rich – thanks for the link…I had looked through that (Like a good follower of the “posting rules”) :) but I hadn’t really seen any reference to how to pull the pulley. Maybe it’s there, and I just got distracted and overlooked it!

Brad – thanks for the nudge in the right direction. I think I’ll bring the unit up to my mechanic and see if he’s got one of those bearing splitters. If not, I’m always looking for an excuse to stroll through HF. :)

-- Steve from Maine, USA

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Rich

1984 posts in 428 days


#4 posted 07-13-2017 07:22 PM



Rich – thanks for the link…I had looked through that (Like a good follower of the “posting rules”) :) but I hadn t really seen any reference to how to pull the pulley. Maybe it s there, and I just got distracted and overlooked it!

- PageOne

Posting rules? What are those? Yeah, I didn’t really go through it, it just popped up and I figured I’d mention it.

Welcome to LJ, btw.

-- No matter how much you push the envelope, it'll still be stationery.

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