[Woodcarver] Bandsaw blade jumping off

[Bill Judt]

Tom:

Thank you for a comprehensive answer this band saw thread. Good 
stuff!!!!!

Bill
List Owner

W.F. Judt,
46 Harvard Cres,
Saskatoon, Saskatchewan,
S7H3R1
PH: 306-373-6649
Email: bjudt at sasktel.net
Website: http://www.wwwoodcarver.com

On Jan 20, 2005, at 4:20 PM, TWWOODWORK at aol.com wrote:

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> This is in reply to Bill Smith's question about his bandsaw.
> "Anyone have an idea what could be wrong with my band
> saw its a sears 12". I do not have the book for it and
> the blades keep coming off the wheels when I start it
> up even with a new blade. The top wheel will wobble
> when touched what does one need to do to fix this
> problem so that I can use the band saw?"
>  
> Answer:
> If the top wheel  wobbles when you touch it, or has any wobble at all, 
> I think you have a bad bearing in your upper wheel. The wheel will 
> have to be removed, the old bearing pressed out and a new one pressed 
> in. There is a possibility that the wheel is loose and only needs to 
> be tighten up, but I would bet on a bad bearing.
>     If you don't know how to press bearings, take the wheel(s) to an 
> automotive machine shop and they should be able to do it for you. 
> Bearings are rather standard and there is usually a number on all 
> bearing so the machine shop can get a replacement and press it in.
>      Machine shops have presses and "know how"for removing and 
> pressing in all kinds of bearings.
>     When you remount the wheels, be sure that the upper and lower 
> wheel are in alignment. A straight edge can be used for this, although 
> you might have to remove the table to get a straight edge across both 
> wheels. I don't know if the Sears has an adjustment for changing the 
> angle on the upper wheel or not. It is a knob on the back of where the 
> upper wheel mounts. If it does, move it in  and out till the blade 
> rides on the center of the wheel. This will help it cut in a straight 
> line and also must be adjusted to keep the blade from jumping off.
>     While you have the wheels off, check the rubber tires on the 
> wheels. They may need replacing too. When you say the wheel wobbles, 
> either the bearing is worn out or  defective. If worn out, you must 
> have a lot of miles on it and I would bet the tires on the wheels also 
> need replacement, and I would have new bearings put into the upper and 
> lower wheels.
>     I would highly recommend getting one of the standard bandsaw 
> books. Amazon.com: Books: The Bandsaw Book It is by Lonnie Bird and 
> sells for about $13.50. No one should be without a bandsaw book. It 
> will answer practically any question you may have regarding the 
> bandsaw.
>      Fine Woodworking Magazine has an excellent article in on of their 
> fall issues re. setting up your band saw to cut straight. It is 
> excellent.
>     Hope the above helps. If you have other questions, would 
> prefer you write to me off line. 
>     Sincerely,
>     Tom
>     Thomas W. Horton
>     Glen Mills, PA 
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