Delta 34-335 blade pulley servicing

[Hendy]

Hi,


I just got an older Rockwell/Delta 34-335 table saw on craigslist. It was in quite nice condition for the most part, though it does look like someone let it sit under a drip somewhere (rusted areas on portions of the machine). When I got it, the tilt and raise/lowering of the blade mechanisms were entirely frozen. It was a gamble, but for such a built-to-last saw at $50... I went for it.

My dad helped me get it apart and we got everything operating quite nicely except for the pulley that drives the blade.

Here is the diagram: Delta 34-335 Parts List and Diagram - Type 1 : eReplacementParts.com

I can't figure out how to remove part 128. It looks like part 176 just presses into it and the two are separated by 129, a brass washer. We pried at it a little but were quite hesitant. Looks like that part is hard to come by and since everything is working, I decided to leave it alone.

Does anyone know how to get this off? It looks like it's required to be removed for belt replacement as well, so I'd really like to know and can't find information anywhere.

[Tinkerdave]

Hi, 176 is (if I remember right) a jack shaft that rides on two roller bearings.If I remember the 128 is a gates ribbed pulley that is pressed on the shaft.They might have used a set screw on the side of the pulley but its been years since I messed with one of these gear reduction units. I would be real careful about trying to take this pulley off unless you must remove for a bad bearing or belt as the parts are no longer available. I'm sorry that I can't give you more insight into it then that.Hope that helps a little.Good luck.

[Hendy]

@Tinkerdave

Thanks for the note. Yes, it is a toothed pulley with a lip on it. The belt goes around it and connects to the motor output shaft. I have looked at the sides while turning it and have not seen a set screw. Nothing is called out like that in the parts diagram either.

I'm leaning toward what you say -- it isn't currently broken... so perhaps I'd better not go trying to fix it!

If anyone else has the definitive method of removal, I'm still hoping to hear it. If the belt ever does go I'll need to know how to replace it and I think removing this is somewhat necessary.


Thanks,
John

[Tinkerdave]

And come to think of it,the very early ones I belive had the pulley that screwed onto a threaded jack shaft.

[Hendy]

@Tinkerdave:

Ha! I wondered. The pulley has 6 (or 8?) 1/8" holes in the front of it. I couldn't figure any real reason for them (weight reduction?) except possibly being for a spanner wrench. Makes me wonder if it IS threaded on there.

Would it use the same threads as the arbor nut?

Thanks again,
John

[Tinkerdave]

Well I'm not sure about that or if they used a right or left handed thread on the pulley.

[Hendy]

I'll give it a whirl tonight -- maybe hit it with some lube, let it sit, and see if it moves at all. It does make sense now that I think about it -- left hand threaded so it tightens just like the arbor nut and the end of the arbor has a nice 3/8" hex head for loosening the nut as well as perhaps the arbor pulley itself. I could use a spanner wrench but if I recall, I was just able to slide in the pin from the hinges of my back door that I just replaced. Nice steel shafts that were a good fit. Perhaps I can get one to hang up on something cast and then gently tease at the hex head to loosen it.

Thanks again,
John