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Jet 14"pro bandsaw blade tracking

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Forum topic by fuigb posted 05-11-2014 08:33 PM 922 views 0 times favorited 6 replies Add to Favorites Watch
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fuigb

403 posts in 2420 days


05-11-2014 08:33 PM

Holy cow, I need a remedial course in tensioning or tracking for my saw or I need s a few sticks of dyamite. The saw was new in ‘12 and it has maybe 20 hours of use by a hobbyist (me), including a few hours recently turning scavanged soft maple into quarter-saw boards. I’ve been through plenty of blade changes, but suddenly the saw iz throwing every blade after only a few seconds whether ubdr load or not. Wtf? I’ve left open the doors in an attempt towitness the problem and what iI’ve seen is the blade slow track off and then the lower tire actually begin to come off of the wheel. Again, wtf?

Anyone experience this? Good thread for solutions as well as the basics for set up?

-- - Crud. Go tell your mother that I need a Band-aid.


6 replies so far

View Bill White's profile

Bill White

4450 posts in 3423 days


#1 posted 05-11-2014 10:04 PM

Check that the lower tire is properly glued to the wheel, and after that, adjust the tracking to get the blade centered on the upper wheel.
I won’t get into the discussion about whether the blade gullet should be on the center of the crown. That’s for another day and other folks.
Is the blade good? Sharp? Properly welded? Tensioned?
Bill

-- bill@magraphics.us

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fuigb

403 posts in 2420 days


#2 posted 05-11-2014 10:48 PM

“Glued to the wheel?” Heck no, I just slipped it off and inspected it. They’re glued or just pretty snug. Like I said I’ve been testing with the wheel covers/doors open for the sake of live inspection, and I’m seeing the lower tire coming away from the wheel at least a half inch due centrifigal (sp?) force.

Re: tensioning, ordinarily I might respond “seriously?” but after fooling around for a few hours I’m starting to question everything. I’ve tensioned at, above and below factory specs and always get the same result. I’ve always pretty much centered the blade on the wheel.. blades are Olson and have seen some use: 1/8 and 1/2. 105” blades as this is the resaw variant of the Jet “14 family.

-- - Crud. Go tell your mother that I need a Band-aid.

View johnstoneb's profile

johnstoneb

2143 posts in 1635 days


#3 posted 05-11-2014 11:19 PM

I would put on new tires sounds like the tire is loose and as it moves off the wheel the tracking get off and throws the blade.

-- Bruce, Boise, ID

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hairy

2384 posts in 2994 days


#4 posted 05-12-2014 01:03 PM

These are the good ones. Have them soaking in hot water while you take of your old ones and clean the wheels. Stretch them on, I clamp the wheel so it doesn’t rotate.

http://www.woodcraft.com/Product/2004896/7284/CARTER-Urethane-Tire-For-14-Band-Saw-78-Wide.aspx

Watch this when you’re ready. https://www.youtube.com/watch?v=wGbZqWac0jU

-- stay thirsty my friends...

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fuigb

403 posts in 2420 days


#5 posted 05-12-2014 01:44 PM

Hey all. When I posted this in reply to Bill White…

—- “They’re glued or just pretty snug.” —-

...I meant to end with a question mark, as in “they’re not supposed to swing free?”

So, I just got off of the phone with the Jet Warranty Center, and the immediate diagnosis was “tires are shot.” Sometimes they last a year and sometimes they’ll go for 20 I was told. So, assuming that Bobby (of Jet) is correct then there’s no need to question your sanity when it comes to tensioning and tracking. Replace the bloody tire and maybe you’re back in biz. Truly, I hope that this proves to be the solution because I have zero interest in lifting and loading this damn saw for a trip to the warranty center.

Thanks to all for your thoughts on this matter. This is what sets the interwebs and forums like LJs apart from the dark days.

-- - Crud. Go tell your mother that I need a Band-aid.

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fuigb

403 posts in 2420 days


#6 posted 05-19-2014 04:18 PM

Follow-up: five days after placing my order my new tires (OEM, from Jet/JPW) they arrived. I noticed right away the the new tires were quite a bit smaller than the originals, and I needed to soften them up in hot water and get a hand to to stretch them over the wheel. Now the blade stays on the wheel and so I’m back in business.

File this one away under “Easy Solutions Once You Know What’s Causing the Problem.” Tires, replace the dang tires.

-- - Crud. Go tell your mother that I need a Band-aid.

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