I recently acquired a Delta 34-670 10 inch table saw – I believe it was manufactured in 1987. A bit of a screamer, so I set out to replace motor and spindle bearings. This saw uses a timing-belt driven blade spindle incorporated into the motor housing. Removing the pulley from the blade spindle was proving to be extremely difficult, and some on-line searches led me to a FW forum archive, but with no resolution. Ultimately, here’s what I came up with. Once the retaining ring is removed, as anyone working on this saw will tell you, there is virtually no room between the pulley and motor casing for a puller, or any other adequate means. of removal. There’s a “wing” molded into the cast motor housing – it’s behind the pulley, and it provides a mounting spot for the belt guard. I drilled an access hole through this “wing”, allowing me to tap the back of the pulley with a 3/8 punch. The pulley is cast iron, so I used a paint marker to mark wear the “spokes” of the pulley were, thinking these areas would hold up best. After liberally spraying with PB Blaster, and then heating with a propane torch, I slid in a small piece of scrap steel to keep from striking the pulley directly and began slowly tapping around the back of the pulley, and it eventually broke free and came off the spindle. Hope this helps !
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I have no direct knowledge of this saw, but the responses to this post on the SawmillCreek forum may be of help:
https://sawmillcreek.org/showthread.php?48010-Delta-34-670-table-saw
The motor and bearings may be fine. That saw runs a universal motor that will sound a bit like a shop vacuum on steroids. I would be sure before I went too deep.
Thanks - the bearings on the blade spindle were indeed junk. At that point, may as well install new motor bearings.
Thanks - the bearings on the blade spindle were indeed junk. At that point, may as well install new motor bearings.
If this is the model I think it is,Delta manufactured a propriety motor and housing and it was impossible to substitute either.Multiple shops and finally delta made a new motor mount that allowed any substitute motor and much easier access.