Question about Craftsman Saws

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The saw blade will not stay in place on the top wheel...no matter how tight the blade is..after 3 turns the saw blade starts to come off .

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Check the alignment of the top roller; If you have had this problem from the beginning then it is possible your saw was damaged in transit and has a bent mount. If it worked great in the beginning but then problem started you may have a bad bearing or bushing. With the blade off, see if the top roller wiggles or moves as you look for movement in the mounting bolts or areas. If the roller has holes in it look through those holes as you rotate the wheel to see if there is a loose or missing bolt / nut there.

Posted on Nov 06, 2010

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1 Answer

How do you change a blade on model 36-075


Lots of saws have left hand threads on the nut that holds the blade in place. It is designed so that if the saw starts up and the nut isn't snug, the nut and the blade slipping on the turning arbor would tend to tighten the nut as they slip against the force of the spinning arbor.
1. Unplug the saw.
2. Hold on to the blade tightly with one hand.
3. Put the wrench on the arbor nut and turn it in the direction you would turn it as if the wrench were turning the blade to cut wood.

If you've previously overtightened the blade, jamb a piece of wood against the teeth and the saw table top and then follow step 3.

If the motor is on the left side of the blade as you face the saw, then it's a standard right hand nut.
If the motor is on the right side of the blade as you face the saw, then its a left handed nut.

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1 Answer

Changing blade scroll saw


Loosen the knob at the rear of the top arm - turn it counterclockwise several turns. The blade should now be loose. Push the "blade end" of the top arm down slightly with one hand while you unhook the top of the blade. Lower the blade a little to unhook it from the bottom arm.

Replace the blade. Hook it onto the lower arm first - you can look underneath to see what you're doing. The blade's teeth should point DOWNWARD - it's easy to accidentally install it the wrong way, so check that now. Again push down slightly on the end of the upper arm, then hook the top of the blade into the upper arm's blade holder. It should how stay in place, but loosely.

Now return to that tensioning knob at the top rear. Tighten it slowly until the blade is BARELY tight, not loose. Tighten the knob 1/2-turn to one full turn tighter to tension the blade.

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Sounds like your tracking screw needs adjustment, located right beside the knob used for tightening after adjusting the tension on the blade. Allen wrench required. Turning right pushes out and turning left pulls it in. A little is a lot when adjusting this screw. Always turn the blade in the same direction as the cut while adjusting.

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Top tire comes out from under blade, blade stays in place. Have replaced blade and the proble still happens but off the other side of the wheel


Glue tire onto wheel. Make sure that blade is tracking well by seating itself back in the gauge blocks almost against thrust bearing by adjusting lateral knob

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2 Answers

HOW DO YOU CHANGE THE BLADE AND TIGHTEN IT UP THE BAND BLADE CAME OFF & I DONT KNOW HOW TO GET IT BACK ON


Unplug it. Open the cover(s). Find the tensioning knob - this is usually right on top, and it is raises the top wheel (or ins some cases an idler wheel) - thereby tightening the blade. Lower the top wheel by turning the tensioning knob a few turn counter-clockwise. This will give you enough slack to re-install the blade. Wear leather gloves and reinstall the blade. Tighten the tensioning knob a bit. Turn the wheel by hand a little to see that the blade tracks OK. Tighten it a bit more. The correct amount of tension pretty much has to be determined by trial and error. If the blade comes off, or bends too much while you try to cut, or cuts poorly, then it's too loose. If you over-tighten it you can break the blade or prematurely wear out your machine. Close the cover and plug it back in. You can adjust the tension with the cover closed, and you can even tighten it while the saw is running. But I wouldn't loosen it while the saw is running.

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Sounds like you have a saw with defective castings. Either cast out-of-true or deflect under pressure.

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1 Answer

Can't get the blade to stay on track


There is an adjustment you can make to the top guide wheel to make the blade stay on track. There is a screw with a lock nut just beneath the main bearing for the top wheel that is used to "tilt" that wheel to allow the blade to stay where it is suppose to. This needs adjustment periodically due to normal wear in the bearings or maybe due to a blade which is made a little different than the last one that was on there. Loosen the lock nut, then turn the adjusting screw to tilt the wheel in the direction needed to keep the blade on. Not much adjustment is usually needed. After turning the screw, jog the motor on briefly (with the blade on) and check how it runs. Keep adjusting until you get it running true. Lock the nut and you should be good.
Good Luck. Be Careful while jogging the motor to check the runout, as you will need to do this with the guards out of place.

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1 Answer

I do not know how to change the blade on a dewalt


I'm not familiar with that particular band saw but I have had a few different band saws and they all pretty much work the same.

Unplug the saw and remove the top and bottom wheel guards.

Look behind the top wheel and you should see a large bolt standing vertically it may have a knob on it or it may not, look on the bolt to see if it has stop nuts if so loosen them then turn this knob so as to lower the wheel enough so you can remove the old blade.

Clean the rubber tires on both wheels and install the band with the teeth facing down.

Now the tricky part, adjust the top wheel so that it is firmly against the band and turn the wheel slowly by hand (be sure the saw is unplugged) if the band "walks" one way or another, you will have to find the set screw or set screws that adjust the tilt of the wheel, adjust these until the band runs true on the wheel. When it does, tighten the wheel a litte more and turn again slowly by hand repeat this until the band runs true and it is very tight on the wheel, Put the guards back on before you turn on the power. You should be good to go.

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It sounds like you need to replace the shaft.

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1 Answer

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Hi, On all bandsaws, it's the pitch of the wheels that determine the position of the blade. The top wheel should be adjustable for pitch, and blade tightness.
The blade should only contact the thrust bearings when you are cutting, not when it is idling. No sense in wearing out the bearings and blade while idling.

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