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4th November 2002, 02:26 PM #1
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Taking the wobble out of a Circular Saw
Just last week was given an older Ryobi 184mm circular saw. Remembering something about gift-horses' teeth i took it and said a big thank you. When i got it home though and was chacking it out, i noticed the blade had a big wobble in it as it rotated and actually scraped against the retractable guard. The total excursion is about 10 mm but i want the saw to cut and not bulldoze dados. The blade seems quite flat, although it does have a 1-2mm wobble when poked around its rim on a flat surface, and the drive part of the saw looks in pretty good condition, ie nothing seems obviously way out.
The balde sits on two "washers", one with a circular hole while the other has the same radius hole with a "flat" bottom which fits on to the drive shaft.
My question, is the saw salvagable and is this worth it??
Thanks in advance, Tim
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4th November 2002, 03:24 PM #2
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I've not dealt with this type of saw but I've had a similar problem with another brand that I had fixed by a tool repairer. A new blade and washers/bushings set it straight.
The blade was about 2mm out (not sure who dropped it) and the new gear did the trick. Sounds like yours is cutting a bigger dado though.
Mark.
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4th November 2002, 09:42 PM #3
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Hi have a sawdoctor check your blade out...also check your saw arbor for run-out.
The reason it may have been given to you may be that the bearings are of a qustionable nature.
Cheers
------------------
JohnnoJohnno
Everyone has a photographic memory, some just don't have film.
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4th November 2002, 10:07 PM #4
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Have a good look at the shaft if it is bent it probably isn't worth reparing.
A small excentricity at the shaft can be huge by the time it gets to the blade edge.
A real good look at the washers might reveal some problem. Perhaps they are not on properly or the correct way round.
That sort of miss alignment sounds pretty dramitic.
best of luckAny thing with sharp teeth eats meat.
Most powertools have sharp teeth.
People are made of meat.
Abrasives can be just as dangerous as a blade.....and 10 times more painfull.
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