Thread: refitting tyres on jet b/saw

Hi Troy,
I have done my 19" Carba tec BS both top and btm wheels, I was gonna take a pic but
I had a blade break and take a chunk out of the tyre I did a quick repair with some supa glue and it went for quite a long time after I did try to replace that one a while back with a method that was not good, basically thought I could just stretch it over the edge, ended up stretching the tyre at one point.
I assume yours will be the polyxxxxxx type and not rubber although the below method will work but may not be needed for a rubber type
From memory I googled it and found a utube vid, but roughly it goes like this....

It is easier to do both at the one time,
remove from machine,
sit one on top of other on bench,
cut some sticks say 12 to 19mm thick and 20 to 40mm wide and long enough to span both wheels from bench top to above top wheel by 1" or so
need about 10 or so,
space sticks evenlyish around wheels,
tie sticks to wheels or tie stick to its opposite stick, and in the centerish of the stick, I think I used wire,
may not need to do all of them say only the last ones that get the band pulled over towards the end to stop them moving, now it's just like putting a car tyre on a rim,
next put band over sticks and work band around until over all the sticks, easy
gets a bit tricky at this stage I recall something about warming, dunking in hot water or leaving in the hot sun, I may have done that with the first f#%k up, it probably wont hurt but I'm not sure I did the warming the second time as the heat is lost fairly quickly and no real benefit to be had with the stick method,
just trying to remember if there was a trick here or not I may have assisted the band over the last sticks with a suitable shaped piece of wood or I may have used a piece of strong matl torn into a strip (like a suit tie) and threaded the strip under the band so I could pull it out so I could get it over the edge of the sticks/wheel without damaging the band, you also need to stop the wheels moving,
with one band on and wrapped around sticks work it down until level with wheel, depends how long you left the sticks, either turn wheels over and repeat or work top band down until level with btm wheel and then repeat for top wheel,
the trick here now is to try to get the tension in the bands even as possible all the way around the assembly, I worked my way around wheel gently stretching each section inbetween sticks, can only go by feel,
now remove sticks, one and it's opposite at a time,
before all come out put a piece of dowel 10 to 19mm dia. foot or so long inbetween trye and wheel (for each wheel) so now you should have a bit of dowel under the tyre and inbetween the wheel and no sticks (for each wheel),
rotate dowel around under the tyre a couple of times around wheel, this is supposed to even out any uneven tension but then you are left with would could be a loose spot when you pull the dowel out, I think I did this last step but I'm not real sure, if you are happy you have no uneven tension spots you could probably leave this last step out
when you get the new ones they look like they are heaps too short, they are tight to get on but I found this method quite good, does need a bit of setup tho, a case of slow and steady, mine have been no problem at all, my wheels are machined with a crown inbetween the lips and required no grinding or further work

Hope this helps

Pete

Here's the benefit of all my experience with a Jet 18".
I've done it once. After a few false starts on the top wheel I worked this out and the bottom wheel was a piece of cake.
I retyred the wheels in place.
Soak the tyre in hot water.
By hand get as much on the wheel as you can and use 2 clamps to clamp that in place.
Now use a tyre lever or similar to work the remainder onto the wheel. If necessary use another clamp to hold as far as you've gone.

Edit: Thinking back, that should be 2 tyre levers.

Originally Posted by Wizened of Oz

Here's the benefit of all my experience with a Jet 18".
I've done it once. After a few false starts on the top wheel I worked this out and the bottom wheel was a piece of cake.
I retyred the wheels in place.
Soak the tyre in hot water.
By hand get as much on the wheel as you can and use 2 clamps to clamp that in place.
Now use a tyre lever or similar to work the remainder onto the wheel. If necessary use another clamp to hold as far as you've gone.

Edit: Thinking back, that should be 2 tyre levers.

That's kinda the process I tried first up, it was the last bit trying to get it over the edge that I stretched it and basically buggered it, whether a Jet tyre is a little bit bigger in relation to the wheel when compared to mine I don't know, be careful if you go this way

Pete