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Post by deb193redux on Jul 20, 2013 23:12:44 GMT -5
My local club was given an old Raytech 18" saw. (SA-18). some chemical had been used instead of oil and all the pain melted off the inside walls and gunked up the vise guides and screw feed. may have to take it apart and clean pieces.
anyway, I think it is running backwards. The blade spins up and back. I suggested the motor needed reversing, but folks are trying to say that is how that model saw was built. Can this be true?
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Post by NM Stone Supply on Jul 21, 2013 9:22:11 GMT -5
I doubt it. I think the wiring on the motor is wrong. The motor on my 18" HP had a toggle that if hit down the blade turns the wrong way.
But when mine runs backwards the drive also makes the vise go away from the blade.
Does that one spin like that but drive correctly?
Pretty odd.
Jason
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Post by deb193redux on Jul 21, 2013 14:31:40 GMT -5
there is a separate drive motor. it is not geared off of the main drive.
it looks real funny to see the oil raised up like a fountain along the front edge of the blade.
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Post by Rockoonz on Jul 21, 2013 18:43:19 GMT -5
I believe I have heard something to that effect before. Back when industrial diamond was still expensive slab saws were mud saws with a grit slurry in the bottom of the saw sump. The "blade" was a metal disc and the grit in the slurry was what cut the slabs. The blade would spin backwards so it wouldn't have almost 270 degrees of rotation for the grit to be slung from the blade. I remember hearing that a manufacturer stuck with that rotation direction, at least for a time, must have been Raytech. Maybe the reason your clubs saw is all gunked up is that it was a mud saw. I would reverse direction on the drive motor. Or maybe you have a capacitor start motor with a messed up capacitor, and it's just starting up backwards.
Lee
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Post by deb193redux on Jul 21, 2013 21:41:24 GMT -5
the capacitor idea is interesting. i also need to email raytech
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Post by johnjsgems on Jul 21, 2013 23:03:20 GMT -5
See which way the blade nut turns.
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Post by deb193redux on Jul 22, 2013 9:16:07 GMT -5
excellent idea. I will need plan to go over on the weekend.
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Post by johnjsgems on Jul 22, 2013 17:07:53 GMT -5
My neighbor where I used to live had an 18" Raytech. He asked me to help him remove the blade as he couldn't get the nut off. It was left hand thread, was on the left side of blade. Pretty sure it turned toward the front (normal).
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Post by deb193redux on Jul 22, 2013 17:15:21 GMT -5
this nut is on the right side of the blade (driven pulley on the left). I emailed the guy whose house it is at and asked him to check the nut.
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Post by johnjsgems on Jul 23, 2013 14:24:19 GMT -5
Should be a right hand thread and blade should turn towards the front. If left hand then the blade would have to spin to the back. I can't imagine how the splash lube would work with blade turning away from the rock. A pump system would be in order.
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