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My angle grinder came with a special wrench to take off the disk. I have a small button to push that locks the shaft. I push it gently with it UNPLUGGED while turn the grinding wheel by hand till it locks. Then I use the wrench to undo the "nut" that holds the grinding wheel on.
Yes it should pull out with the armature. The plate can only be removed after you remove the nut and gear on the end of the armature. Make sure your brushes are pulled out first or they can hang up on the bearing at the other end of the armature which may be what is happening in your case.
There is a button at the front of the grinder usually black or red, depress it lightly and rotate the wheel (unplug grinder please) wait until you feel it fall into spot, depress tightly and hold then turn wheel and unscrew to replace pad. Reverse to reassemble.Good Luck....
Hello, a dead man switch functions in this manner. As long as you hold the switch down the grinder functions, and as you know when you release it the grinder stops. This is a good safety feature in that if you drop the grinder of lose control of it, if the grinder stays running it could cause a lot of damage to material or your body. The switch can seem to be a pain when having to hold it down all the time, but it is a safety feature that can actually save your life in the case of you losing control of the unit.
Fein is an excellent tool and has an excellent warranty that will be void the moment you open the gearbox. I do not recommend this action. Fein is quick and responsive, especially for a less than one year issue.
Farmerbear at FixYa.com
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.
The only time I have encountered this problem is when the field coil is loose in the motor housing, or one or more of the leads has come loose. By tipping the unit back the coil slides to the rear and makes contact. Then contact breaks when the tool in tipped forward.