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I can't get the wheel to my grinder loose. - Saws

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  • Samuel Charles Spriggs May 11, 2010

    Is there a notch on the shaft for a wrench to hold the shaft while the bolt holding the wheel can be turned?

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All grinders have wheel lock button located usuall on the front facing you... its black... press it and try turning the wheel... when you felt it is locked try turning the wheel.. manually... the bolt should loosen... dont 4get to unplug the unit first....

Posted on Jul 19, 2009

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Posted on Jan 02, 2017

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I have a Delta 6 bench grinder model #23-680. How do I hold the shaft from turning as I loosen the nut hold the grinding wheel in place?


Hold (or lock) the grinding wheel on the other side if loose or lock because the locking direction is the same direction and don,t forget to ringing (sound-check -like a tuning fork) the stone if you replace it with a new one The risk is small but safety first

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How to change a grinder blade on a ryobi grinder


Handheld grinder or bench grinder? I'll assume you're asking about a handheld grinder.

Engage the arbor lock. You may need to rotate the wheel until you find the spot where the arbor lock locks the wheel. Use a wrench or a gloved hand to unscrew the wheel (I use my bare hand). Screw the replacement wheel on and disengage the arbor lock. The new wheel doesn't need to be very tight, it'll tighten itself as you work.

Jul 15, 2014 | Saws

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How do I tighten the nuts on my bench grinder?


A bench grinder has left handed threads on one shaft and right handed on the other,so that the grinding stones don't unscrew the nut as you grind something.I haven't ever gotten around to getting a bench grinder,but on my father's, I used to just hand tighten the nut,then grab the grinding wheel with my hand while tightening the nut with a wrench.(You don't have to make it real tight,as the wheel pushing against the nut will keep it tight)

May 04, 2012 | Heating & Cooling

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Wheel will not come loose, how do i get it off


  1. stabilize the body of grinder
  2. provide block spin to be in release position
  3. get one 3 legged key for releasing oil filters
  4. put filter legs at upper holder of burrs
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Can't get nut off to change blade can I dissassemble from back?


Probably not, Remember the nut is a reverse thread. Your best bet it to try some penetrating fluid or try tapping the nut with a screwdriver, hopefully the vibration will help loosen it. Another trick that sometimes works if the machine has a diamond blade or an abrasive wheel with some life left on it is to put on a pair of heavy duty work gloves. Lock the arbor and try to grab the wheel tight and try to spin the wheel loose with your hand. Don't forget to unplug the machine before attempting to remove the wheel.

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I retrieved a Buffalo bench grinder, Model B-6, from where it had been stored for at least 11 years. Prior to that, I don't know its history. I plugged it in, and it runs. Here is my question: Do these...


A bench grinder would be unlikely to need oiling, but if it has such a provision there would be spring loaded caps or a set screw caps on the motor body near both arbors. The real concern is if the wheels have been compromised by taking a hard bump that could weaken them. This is an unlikely problem if grinder hasn't been dropped or had something heavy drop onto a wheel. If you have no reason to suspect wheel damage, and it runs without squeaking or excessive vibration, and the cord is not damaged, and there are no loose parts on it - then you have nothing to worry about. But you might want to consider "dressing" the wheels. Google "Grinding dresser" and read the Wikipedia article.

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How do I lock up the axel on my bench grinder to retighten after replacing the wheels? Also what is the torque setting?


Just put a wrench on the nut on the opposite side to hold the spindle. They will both tighten at the same time. Tighten them "snug". The threads are made so the nuts will self tighten or should I say will not come loose due to the way the wheels turn and pressure from use is applied.

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I don't know how to change the grinding blade on my makita angle grinder.


There is a nut that you release from the middle of the grinder wheel, (grinder blade)
This nut is flat and has four holes in it.

You will see you are providing a spanner wrench to remove this nut. The wrenches' actual name is Lock Nut Wrench. It has a U shaped end with two pins sticking out. On on each side of the U shape.

The pins are inserted into the holes in the flat lock nut, located in the middle of the grinding wheel. The wrench is laid flat against the grinding wheel, with the two pins of the wrench going into any two holes of the nut.

At the top of the Makita grinder you will see a Black button. The button is pushed down to keep the grinding wheel from spinning. Holds the grinding wheel in place, as you turn the lock nut loose. When you release the button, a spring inside pushes the button back up out of the way.

As you view the Makita grinder, Release Button towards the Back, grinding wheel towards you, the nut is turned to the LEFT, to loosen. It is a Left threaded nut.

The grinding wheel spins to the Right. Using a left threaded nut insures that the nut will stay tight, due to the direction the grinding wheel spins.

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I can't get the wheel to my grinder loose. The locking nut barely locks. Is there any tricks to loosening it up and getting the wheel off so I can put a new and better one on. I don't know if I shouold put...


You should have a pin spanner wrench that fits into the holes on the lock down nut. Hold the shaft with a open end wrench that fits the flats on the shaft.
If you dont have the spanner wrench, use a drift punch to tap the lock down nut to loosen.

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