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Saw will not tighten when wrenching center nut blade slips

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Unplug the saw. Put the blade on and finger-tighten the nut. Then rest the blade on a piece of scrap wood so that it won't slip. Then tighten down the nut and you should be fine.

Posted on Aug 13, 2011

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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

Why won't my saw blade go on tight. the mechanism that secures the blade won't tighten down good enough.


You need to make sure the blade is centered properly on the washer on the spindle as you tighten the nut. It can slip off while you tighten the nut. Tighten the nut a little at a time while you wiggle the blade to make sure it's seated properly in the washer.

Sep 14, 2014 | Dewalt Heavy-Duty 36V Cordless 7-1/4"...

1 Answer

Why does the blade on my table saw slip


This is a very dangerous situation. There is only one answer: You have to tighten the nut on the drive shaft more securely. Also, many saws use some kind of compression washer with the nut. Make sure the compression washer is in place on the OUTSIDE of the saw blade under the nut.

Sep 09, 2014 | Saws

1 Answer

Motor runs but the blade spins slow with no torque (maybe something is loose)


Check your saw arbor nut, lift the plate that surrounds the blade, usually 2 philips head screws....put some WD 40 on first. You will see the arbor nut on the main spindle holding the blade. You should have a wrench that came with the saw to tighten the nut. Tighten it firmly, replace the plate. The blade should now cut. Needless to say your disconnect the power cord before you start.

Sep 21, 2012 | Delta Radial Arm Saw

2 Answers

I inherited a very old Fury F-7 circular saw from my Dad. It uses a 7-1/4 diameter saw blade. This is sorta-kinda embarrassing, but for the life of me I cannot figure out how to lock the shaft to replace...


Most times when I need to change a blade on my 7 1/4" saw I simply grab the blade on the front side, below the saw's support table, with a pair of channel lock pliers and then use the box end wrench on the blade nut, pushing down from the back side of the saw blade. That should loosen the nut so you can take it out with your fingers. The reverse of this procedure should tighten the nut on a new blade.
I'm not real familiar with the Fury saw, but if it requires saw blades with the diamond shaped cut-out in the center, most of the older blades had a knockout that will fit the diamond shape it would need.

Apr 22, 2011 | Now Evolution #Fury 7 1/4" Mp Circular Saw

2 Answers

How do I change the saw blade on my 2 hp 7 1/4 saw?


If the saw doesn't have a locking mechanism for changing the blade then you will have to jam a piece of wood in the teeth of the blade so that it cannot turn. Remember safety first. Ensure the saw is unplugged and wear leather gloves when changing the blade. Use a socket or wrench to loosen the nut that holds the blade on and remove the blade. Use the reverse procedure to tighten the blade.

Oct 02, 2010 | Sears Craftsman 7-1/4 in. Circular Saw...

1 Answer

How do I change blade non model 2708 table saw?


You should have a stamped metal box-end wrench that came with the saw. Place it over the blade retaining nut, and drive the motor belt by hand to allow the wrench to tap on the table behind the blade. This will loosen the nut so that it can be removed by hand (this is a left-hand thread situation). Tightening the nut is the reverse operation and it is not necessary to drive the nut tight with a hammer--it will tighten enough during saw operation. A safety manual will say to remove power from the machine when doing this! Hope this helps!

May 24, 2010 | 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

2 Answers

Blade slips and doesn't turn, but the saw keeps going


Check the blade centre bolt for corrct tightness. If you have fitted a new blade, check to see if it is the type with a removable centre spacer (multi fit type) if it is, it sounds like the centre bolt has bee overtightened at some stage and deformed the spacer which now takes all the drive from the motor instead of the blade itself. Try giving the spacer a light file to remove any burrs. If all else fails, obtain a new blade which doesn't have the center spacer to avoid this problem

Apr 12, 2010 | Ryobi 7 1/4 In. Circular Saw W/ Dual...

2 Answers

How to change the saw blade


Adjustments
LARGEHEXWRENCH
TO REPLACeTHE BLADE
See Figures 43 - 45.
 Unplug the saw.
 Lower the saw blade, raise the blade guard, and remove the throat plate.
 Make sure the bevel locking lever is securely pushed to the left. Raise the saw blade to its full height by turning the height/bevel adjusting handwheel clockwise.
 Using the smaller hex wrench, insert the flat open end into the flats on the arbor shaft.
 Insert the closed end of the larger hex wrench over the hex nut. Holding both wrenches firmly, pull the larger wrench forward to the front of the machine. Make sure the blade nut is securely tightened. Do not overtighten.
Check all clearances for free blade rotation. See To Set the Scale to the Blade. In cutting operations, the scale will be set to the side of the blade where the cut will be measured and made.
To replace the blade with an accessory blade, follow the instructions provided with the accessory.
To install a standard blade:
 Place the new blade on the arbor shaft (the teeth must point down toward the front of the saw to work properly).
 Place the blade washer and the blade nut over the blade arbor. Be sure the dome side of the blade washer faces out from the blade and that all items are snug against the arbor housing. Tighten securely.
SMALLHEXWRENCH
Fig. 43
Blade
Bladewasher
arbor shaft
Bladenut
Fig. 44
BLADEGUARD
THROATPLATE
spreader
BLADE
Fig. 4535
ADJUSTMENTS
 Rotate the blade by hand to make sure it turns freely.
 Lower the saw blade and reinstall the throat plate.
NOTE: Securely tighten throat plate screws. Do not allow the throat plate to bow up above the table surface.

Sep 18, 2009 | Saws

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