Question about Saws

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Is the locking nut on the saw blade left or right hand thread?

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Almost always it's standard right hand thread. If your problem is that it's stuck, spray some WD-40 were the blade and the head of the nut meet and tap the blade with a piece of wood. This causes a slight vibration and allows the WD-40 to work under the head and onto the threads.

Posted on Sep 06, 2010

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Saw blade nuts are backwards therad.

Good Luck and please rate 4 thumbs up for the free answer

Posted on Sep 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.

Sep 17, 2014 | Delta Circular Saw Blade, 10 Dia, 50T -...

1 Answer

Can't loosen arbor nut


Use a block of wood to hold the blade from turning and pull the wrench toward you. Most saws will have the nut on the right side of the blade and will use a right-hand thread. But if the nut is on the left side of the blade, it will be a left-handed thread. In either case, PULL. The crescent wrench should work fine if you place the block of wood in a position where the blade naturally jambs into it and cannot turn. If the washer is correctly placed you do not need to tighten the nut all that much. If it is really stubborn, use a little WD40. Clean it off thoroughly after you get it apart.

Oct 06, 2012 | Bosch 4000 - 07 Electric Table Saws

1 Answer

To remove the blade, is the nut right or left-hand threads? Is there a blade lock?


With any circular saw, table saw, metal cut off saw, mitre saw etc the nut always tightens against the direction of rotation and loosens the opposite way

Nov 12, 2010 | Delta Saws

1 Answer

How do I change the blade on a dewalt compound (12 in) miter saw?


With the saw unplugged - The blade needs to be locked in place so it will not turn when you put a wrench on the nut located on the left side of the blade that holds the blade on. This is done with a locking pin on the right side of the blade. Push the pin in and rotate the blade by hand until the pin locks into the blade and prevents it from moving. With the pin pushed in put a wrench on the large nut on the left side of the blade and turn it. This may be reversed threaded, so you may have to turn the nut clockwise in order to loosen it. When tightening the nut after replacing the blade, you will have to once again lock the blade with the same pin.
Perhaps this video will help you locate the locking pin.
http://www.youtube.com/watch?v=oKmIB-0AE1w&feature=related

Aug 28, 2010 | Dewalt Saws

1 Answer

How do i remove the blade from the saw


Make sure this unit is NOT plugged in. The blade needs to be in a lock position to loosen the blade nut. Most units have a safety pin that engages into the revolving portion. Once you locate this pin, press it in then SLOWLY rotate the blade by hand until you feel it engage. At this point the blade will no longer rotate. Keeping the blade locked, use your wrench and place it around the center nut and turn CLOCKWISE. The thread is left handed, so when startup the unit, the blade nut continuously tightens up.

May 16, 2010 | Dewalt Saws

1 Answer

Lost the brass retaining nut which holds the saw blade in place


You can probably find one at http://www.toolpartsdirect.com/ But I can't help you much because you didn't provide enough info about your saw. One thing that might be helpful to you is to know if it's a right- or left- handed thread. If you view the arbor from the end where the nut goes on, and the blade rotation is counter-clockwise (which is the case for most table-saws) it will be a right-hand thread. If the blade rotation is clockwise (which is the case for probably all radial-arm saws) it will be a left-hand thread. Another thing is to know is the diameter, 5/8 inch being the most common. I don't think there is a lot of variation in the thread pitch for a given diameter. If this is helpful, please vote.

Jan 28, 2010 | Dewalt Saws

1 Answer

Blade needs changing. nut is hard to get at


With the saw unplugged, retract the guard with the base plate extended so there is minimum teeth showing below. Place the blade of your saw on your wood top workbench. Press it down. Using the wrench that came with the saw or other appropriate size box or open end wrench or socket, turn the nut backward (this is a left hand thread not standard right hand thread). It will be tight.

Alternatively, there may be a shaft lock that you can press to lock the shaft to facilitate unbolting the blade.

Alternatively, there mau be a small hole in the blade. Insert a phillips screw driver in the hole to facilitate blade removal.

Key is knowing the thread is backward to what you expect. The reason for this is to cayse the nut to tighten as you turn on the saw, not loosen.

When you put on the new blade, make sure the nut is properly secured.

I hope this is clear for you.

If you have need for more information, please post a comment to this quesiton

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Dec 12, 2009 | Sears Craftsman 7-1/4 in. Circular Saw...

2 Answers

Need instructions on replacing blade on miter saw


Left hand thread on lock nut for a start, remove this and lock washer, lift guard and blade will come out.

Jul 03, 2009 | Saws

1 Answer

Solution for "changing blades on a milwaukee miter saw


Have you removed the old blade yet?

The blade lock my be broken off -- it should be a button on top of the motor.

This saw has left hand threads -- turn clockwise to loosen the bolt/nut.

If you can't find the blade lock, lower the saw onto a piece of wood llike a 2x4 to keep the blade from turning.

May 02, 2009 | Milwaukee Tool 10" Magnum Compound Miter...

2 Answers

I have tried numerous times to undo a nut on my Black and Decker circular saw without success. which way do I turn the nut to undo it and take the circular saw blade?


Am I correct that this is a hand-held saw? Want to make sure of the terminology.

If so, the bolt holding the blade has right hand threads -- meaning it loosens by turning counter-clockwise.

Is there a blade lock? Are you using it?

Apr 30, 2009 | Saws

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