If you have a wobbly miter saw blade, you might be wondering how to stop the wobble and get it to run straight again. There are three basic steps you can take to fix this problem.
Check the belt tension, replace bad bearings, and align the fence. But if none of these steps work, you may need to purchase a new blade. If you want to fix the wobbling problem yourself, read this article.
Fixing a wobbly miter saw blade
You may not know that your saw could be causing your wobbly blade. Worn bushings and bearings can also be to blame. These two parts hold the main shaft of the saw in place.
If they are worn, this could be the culprit. Check the arbor attachment by wiggling it slightly. Replace it if it looks loose or worn. If the problem persists, consult your local tool store.
To start repairing your wobbly miter saw blade, first check the fence. This is a vital piece of the tool that keeps your material square while you cut. If it’s not properly aligned, your cuts will be uneven.
If the fence is off, you can use the miter gauge to make sure that your cuts are straight and square. If this doesn’t work, replace the blade.
Another common problem that causes your saw to wobble is a warped or loose wear plate. To replace this component, unscrew the screws that hold the wear plate in place and attach new hardware.
This should solve the wobbling issue. If the wobbling continues, it may be time to replace the whole miter saw. If it’s still causing you problems, replace the worn plate with a new one.
Another solution to a wobbly miter saw is to change the bearings. If the bearings are not lubricated, the bearings can become damaged.
They can also cause the miter saw to smoke and may even damage the armature shaft. It’s important to change the bearings as soon as possible to avoid further damage. And remember, lubrication is key to making sure that you get the best results from the saw.
Checking for belt tension
One way to stop a wobbly blade is to check the belt tension. This is particularly important if the blade is wobbling frequently. The belt will become under or over-tensioned, causing premature failure due to metal fatigue. It can also distort the crown, flatten the drive tires, and stress the motor, shaft V-belt, and drive pulleys.
The belt tension on a contractor type of table saw is typically fixed to the motor by the weight of the motor. This works fine when the saw is operated at a 90-degree angle, but once you begin cutting at an angle, the vibration starts.
The cause of the wobble may lie in the motor pully or the belt. The tension spring and the motor may be the cause. Once you locate this problem, you can start preventing it.
Other causes of blade wobble include bad bearings, bent shafts, and worn mounting arbors. In addition, if you notice a wobbling blade, you should check the speed of the machine.
Be sure to check the belt tension to ensure that the speed is compatible with the blade’s tensioned speed. If you find the saw still wobbles, return it to the manufacturer for retensioning or flattening.
Another method for locating the belt stop on a table saw is to mark the teeth of the blade using a felt pen. It’s a simple process and can give you an idea of whether or not the blade is wobbly.
It’s also a great way to see if the belt is too loose or too tight, and you can also visually check for unevenness by using a plastic drafting triangle.
Replacing bad bearings
Worn or loose bearings are often the cause of wobbling blades. You can easily check the bearings by removing the outer flange.
If you notice the blade is warped or loose, the flange needs to be replaced. To remove the flange, simply lift up the saw blade until you can see the top edge of the blade. It should be within a 1/16″ tolerance.
Worn bearings and bushings are also common causes of wobbling in circular saws. Worn bushings hold the main shaft in place. You must replace these bushings if they have begun to fail.
A bad bushing can cause the saw blade to flop and wobble, which may lead to a spark or even fire. If you don’t feel any of these symptoms, you may have worn bearings or bushings.
Another cause of blade wobble is a burnt commutator. If the blade is too dull or too rough, it may be rubbing on the commutator, which causes the blade to wobble.
If you can’t get the burn out by sanding the blade with 1000-grit sandpaper, it is time to replace the commutator. This issue causes the blade to wobble when it comes to stopping, and can make your cuts less precise than normal.
Replaced bearings can be a quick and easy way to fix the problem. This is particularly useful if you have recently purchased a new table saw. Replace the bad ones now before you use it.
This will stop the blade from wobbling when you need it most. It will also reduce noise and vibration. Ensure that you unplug the table saw while performing this repair. If this does not work, you should call a technician immediately.
Aligning the fence
To stop table saw blade wobble, align the fence. To do this, first drop the blade beneath the table. Then, slide the fence and the miter gauge to be parallel with the blade.
When you’re done, lock the fence head against the blocks. This is important because the fence cannot move without a tightening mechanism. Aligning the fence is not difficult; it can be accomplished with a few simple tools.
When you’re cutting a piece of wood, the fence is the ‘bouncer’ that holds the workpiece in place. But when the fence is out of line, the blade can’t cut cleanly.
To check the fence’s alignment, try pressing a piece of paper against it. It should move slightly, but not much. If it does, realign it. You should always realign your fence before a major cutting project.
Align the fence to stop table saw blade wobble is an important step to ensure that you have the correct settings for cutting wood. You should also make sure the blade and fence are parallel to each other.
Once you’ve done this, you can proceed to cut wood. Remember, this alignment is not a permanent fix. In addition to checking the alignment of the blade, you should also align the fence with the miter slot to stop wobbling.
If the fence is not aligned properly, it can squeeze the workpiece against the blade. It can also result in kickback. If you can’t align the fence, you might end up cutting an object or a person.
Then, you need to make sure that the miter gauge is out of the way. If it doesn’t, the longboard may shift on the table, increasing kickback and causing blade binding. If you’re unsure of how to align the fence properly, you can use auxiliary fences or supports.
Checking the arbor
A broken arbor will cause the blade to wobble, and it is a potential safety hazard. While repairing or replacing an arbor can be expensive, it is often easy to check for damage yourself.
A cheap feeler gauge or magic marker can help you identify the problem. You can also try adjusting the trunnions and sectors to see if there’s any play. Ultimately, you’ll need to buy a new saw if your arbor is bent or has a large tolerance.
The first step is to check the arbor’s bearings. You can do this by placing a piece of heavy hardwood on it and moving it forward and backward.
Make sure the stone makes only intermittent contact with the arbor. To make sure the stone is not clogged, you should move it away and towards you a little at a time. Don’t overdo it; it will make the saw blade wobble more than usual.
If you’re using a 5/8″ arbor shaft, the problem likely lies with the inner flange. If it’s too close to the arbor and sits against the shoulder, it’s probably warped.
If you’re not sure, take the saw to a professional, who can sharpen or flatten it for you. Alternatively, you can always bribe a friend with beer for their assistance. If all else fails, try a new blade and check the arbor for damage.
Another way to check the arbor is to rotate the saw blade with your finger. It is possible that the blade wobble is due to a small amount of vibration from the blade itself.
However, it’s not worth worrying about if you have a thick kerf blade. However, it’s still worth checking. This simple step could prevent the blade from wobbling for good. You should also consider the quality of the blade to find out which one is right for you.
Frequently Asked Questions (FAQs)
-How can I fix a wobbling table saw blade?
There are a few things that could be causing your table saw blade to wobble. First, check to make sure that the blade is mounted correctly and that the bolts are tightened. If the blade is still wobbling, you may need to adjust the tension on the blade. Consult your saw’s manual for instructions on how to do this.
-What are some common causes of a wobbling table saw blade?
A common cause of a wobbling table saw blade is a dull or damaged blade. If the blade is dull, it will not cut through the material as easily and will cause the saw to vibrate. A damaged blade can also cause the saw to vibrate.
-How can I prevent my table saw blade from wobbling?
There are a few things that you can do in order to prevent your table saw blade from wobbling. First, you want to make sure that the blade is properly installed and that the arbor nut is tight.
Secondly, you can check to see if the blade is warped by holding it up to a light and looking for any bends or waves. If the blade is warped, you will need to replace it. Lastly, you can try to adjust the trunnion screws to see if that helps to fix the issue.
There are a few things you can do to stop table saw blade wobble. First, make sure that the saw blade is installed correctly and that the table saw is level. Second, check the blade for damage or wear. If the blade is damaged, replace it. Finally, use a sharpening stone to keep the blade sharp.