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I have to start the wheel spinning manually as the motor wont start the saw going without this assist. I guess I have to change the wheel bearings and lubricate the motor. How do I do that?
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It could be the bearings in the motor are bad. When you turn the saw on does the motor pulley turn. If not the motor shaft could be turning inside the pulley. Make sure the pulley is not loose on the motor shaft. If the motor just hums without spinning it has an internal within the motor itself
I'm assuming here that the tension on the belt is set properly.
It sounds like a bearing in one of the wheels is going out, but the squealing sound indicates that the blade guide(s) may be a part of the issue. Here's how to check: Loosen and remove the blade. Start the machine and listen to the lower wheel bearings. Remove the belt from the pulley on the band saw. Spin each wheel separately, being careful not to get your fingers hung up. Listen for grinding bearings, slow revolutions compared to one another, etc. If you can isolate the problem, lubricate or replace the bad bearing. If the bearings check out to be normal, replace the blade. Set the blade guides so that they are close, without touching, and roll the wheels again. Look for pinch points where the blade passes through the guides. If yours is equipped with a roller plate guide behind the blade, check that it moves freely. (I haven't been able to locate a diagram of the model listed, so I'm not sure if you have one or not). Replace the guard and start the machine. Try running a piece of scrap wood, and try to determine where the blade is binding. Usually, the blade will bind in the guides, but anything that the blade can touch when it is deflected when cutting should be looked for. This is all that comes to mind. Hopefully it will help you locate the source of the problem. Best regards, --W/D--
Hello'
I have the exact same saw. It sounds like the key stock came out of the pulley attached to the lower wheel. I will give you a quick rundown.
-unplug saw
-you will have to lay the saw on its side so you can remove the motor and drive belt.
-there are 2 seperate pulleys , the one connected to the motor and the one connected to the bottom wheel.
-loosen motor nuts and remove motor, pay close attention when removing motor 3 of the 4 studs have sleeve like spacers.
-once motor and belt are out of the way check the pulley on the bottom wheel,my guess is that the key stock came out and the pulley spins freely.
-loosen set screw,replace keystock and tighten.
-NOTE the keystock may have came out of the motor pully instead,check.
Now this next part is real important.
-once you get it figured out and are ready to put everything back together the 2 pulleys must be perfectly lined up, use a flat ruler, using your eye will not work.line the drive pulley up with the lower pulley. ( the pulley on the motor has a shoulder on it so when it is pushed towards motor it will be set in the right spot) .
It is either the pulley on the motor or the wheel that has lost its keystock.
you have a motor/bearing problem. UNPLUG tool and turn on its backside and remove the back motor cover and see if the bearing has collapsed. and remove brushes to see if motor burnt
Tires need replaced- may have a few other problems. try this
-unplug the saw spin the saw by hand, does track down the middle of both tires? also look at your guides and backup bearings.
I would take off blade-back off all guides and bearings -clean off any build up on tires- replace blade. now spin wheel ( always spin with the blade going down) if its tracking good go ahead and adjust guides and bearings to specs and try again. most likely the back up bearings are out of adjustment. they should not spin unless you are feeding material and it seems like the bottom one may be your problem.
But never the less it sounds like new tires are needed.
check the bearings, especially the commutator bearing for seizing up, this is a common problem for the table saws. Let me know the exact model number and if you have a bearing puller you can fix this easily. if not most shops won;t charge much to pull and press on new bearings.
if its a new blade, make sure that it is the proper length for the saw, sometimes aftermarket blades look like they are the right size but the difference of a few mm can cause the blade to track. if its an old blade, it could just be dull enough that it is binding on the material you are cutting and this draws the blade off the wheels. even if the blade isnt that old or seems sharp, if you have a brand new blade handy that would be the easiest thing to try.
your manual will have instructions on how to adjust the blade guide bearings. if this is a new saw, it SHOULD be set properly and be working from the factory but they may still need to be adjusted. an older saw obviously may have shifted a bit from normal usage. if you dont have a manual one can be downloaded from the wilton tools website.
before adjusting the guides, though, check to see that the bearings spin freely. if they do not spin smoothly with minimum pressure, they need to be replaced. they also should be replaced if they spin VERY freely because this is also an indication that they are pretty worn and may actually be binding up under pressure.
It sounds like the pinion on the armature and or gear are stripped. The only way to find out is to tilt the blade and remove the motor housing from the diaphragm and check it. If replacing the armature I would recommend also replacing the bearings and brushes as preventative
Is it spinning the blade at all? If it is then it is unlikely to be an electrical fault. Have you considered a motor bearing fault? If the motor bearings are worn, it could turn freely by hand, but when powered up it would stutter and stall. The motor is basically a big electro-magnet so if the armature has enough lateral movement, when it is magnetized it could rub against the stator.
If the machine is buzzing, but not spinning the blade it is more than likely going to be caused by a faulty capacitor as this is the component that gives the motor the initial 'kick' in the right direction to get it spinning.
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