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Blade keeps jumping off the wheels. always moves toward the front

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What is the procedure of putting a new blade in a shopsmith scroll saw?


for more info please see the owners manual here: http://www.shopsmith.com/ownersite/manuals/845539.pdf and view page 31 -32


  1. Slide the new blade into position, working it up through the table slot, around the guard, and onto the wheels, as seen in Fig. B-26. The teeth must be pointing down and toward the front of the Bandsaw (and toward you). Position the blade approximately in the center of the rubber tires and in between the guide blocks.
  2. Check the tension scale alignment. With the blade slack on the wheels, the red indicator bar should be parallel to the left edge of the tension scale. If this is not the case, follow the alignment procedure described in Alignment section. Fig. B-26 Fig. B-27
  3. Tension the blade, turning the blade tensioning screw clockwise, as demonstrated in Fig. B-27. Notice that as you turn this screw, the red indicator bar moves, because it is actually the flat spring that tensions the blade. The blade tension is properly set when the edge of the bar disappears behind the scale at the marking for the blade width you're using. On a few operations, such as sawing thick stock with a thin blade, it may be necessary to increase the blade tension slightly beyond the normal setting. However, this increased tension will shorten the life of your blade. Always remember to reset the tension screw when you no longer need extra tension
  4. After you've spun the blade several times by hand, it should be centered on the three roller bearings, indicated in Figs. B-29 and B-30. The back of the blade should rest against the auto-track roller bearing and the lower blade guide roller bearing, and it should be no more than 1/64" away from the upper blade guide roller bearing. If the blade is not properly positioned on the bearings, follow the procedure described in "Adjusting Roller Bearings" in the Alignment section.

Jan 18, 2016 | Blade Saws

1 Answer

The blade on my delta 28-276 keeps riding off the bottom tire


The blade on a band saw stays on the wheels because they are aligned in a way to keep it there. Several things can be wrong to make the alignment off enough that the blade won't stay on. Check the condition of the tire and that the wheel isn't bent. Then check that the bearings and lower drive shaft are not damaged. Another remote possibility is a bent frame that throws the alignment out of wack.

Oct 08, 2012 | Delta 28 276 14" Band Saw W/ 3/4 Hp Motor...

1 Answer

Just purchased a 6230 porta band saw and the blade keeps jumping off. Put the blade back on and as soon as you touch the material the blade jumps off.


could be a couple problems, first the blade could be bad, the tires that are on the wheels, a loose axle bolt or the frount housing might be bent. First try another blade and watch for which pulley it rolls off of. Next try to wobble the pulleys and if you can the axle bolt has loosened, I use an impact driver to lock them in place along with loctite. Next if the above are OK check the front housing for being bent (that is a common thing) from the housing hitting after cutting a piece of steel. Let me know if you need more assistance.

Oct 06, 2010 | Milwaukee Tool Milwaukee 6230 Deep Cut...

1 Answer

Does not give a short enough cut


Have you always had this problem?
Have you had the blades off to sharpen?
Could the blades have been mistakenly put on upside down ?
The turned up piece goes toward the deck
Check your deck hangers to be sure they are free and not binding anywhere and to be sure they are dropping as far as they can go in the lowest deck setting.
your deck should move up and down evenly as you lower and raise it.
Unless spacers are an option for this cause i wouldnt use them.
Check the tire pressure 14 psi front 10psi rear .

hope some of this helps for you

Jun 09, 2009 | Husqvarna Lawn Tractor - 54in. Deck, 26...

1 Answer

Blade too close to ground


move them foward to raise wheel height. you can confirm by moving to full foward posistion on front wheels then adjust down to get height you desire.and repeat with back wheels and set accordingly. hope this helps..chris

May 12, 2009 | Mtd Yard - Man 160cc, 21" Self - Propelled...

1 Answer

When making a straight cut with my bandsaw, the blade will


Before tuning it up, loosen the guides and wheels away and square the table to the tensioned blade. Then follow these steps in order:
  1. First, adjust the upper wheel so the blade is tracking at the center or just to the front of center of the wheel tire. (You can see this with the cover removed, and adjust it with the nut/wing nut in the back).
  2. Now, make sure the blade guides are adjusted so they don't deflect the blade to either side (when looked at from the front), so they contact the blade just behind the gullet of the teeth, but not against the hooked teeth themselves, and are just tight enough to allow the blade to run freely (including the weld). (If your guides are worn and out of flat, you may wish to dress them on a sander before adjusting them against the blade.) Adjust the guides both above and below the table. At this point, ensure that the guide bar moves up and down easily and locks into position without torqueing the guides against the blade.
  3. Finally, adjust the bearings behind the blade, so they just kiss it, and turn freely when you revolve the bandsaw wheel. They will support the back of the blade when pressure is applied against it during a cut, and help immensely to keep the blade tracking straight.
At this point, check the cut by trying to follow a straght line penciled on a board. Some blades will naturally tend to veer slightly on a diagonal, depending on how they are sharpened, and you may have to adjust your fence to compensate for this "drift".
But if you follow the steps outlined above, and have a good sharp blade to begin with, you should be able to split a line.
If you follow these tips and they prove helpful, please let us know your problem is solved. Otherwise, give us a little more detail and someone will be happy to follow up.

Mar 20, 2009 | Delta Saws

3 Answers

Bought model 3400 skil table saw. have no manual. can't find control for tilting blade. how do i tilt blade


This model does not have a knob on the side.
There is only a locking lever on the front next to a single rotating wheel for height adjustments. To tilt the blade simply twist the locking lever to the left and push the height adjustment wheel to the right. It can be a bit stiff at times to move.

Feb 26, 2009 | Skil 10" Table Saw 3400

2 Answers

Porta Band saw blade jumps off


I had this problem on a used model 725 that I bought. Apparently the rubber tires on the drive wheels develop a bit of a memory after sitting for a while with tension on the blade. I tried cleaning the tires to no avail. Then I removed both tires, flipped them over and re-installed. Still not fixed. Then I put only one back to the original position and the problem was solved. Other than the frustration of trying several times, I was out nothing and I got quite proficient at taking the blade in and out. The saw has worked fine ever since. I hope this simple (and free) solution works for you.

Nov 17, 2008 | Saws

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