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I have a Delta 23-840 8" bench grinder on which I'm trying to attach a 8" wire wheel. The shaft has a 5/8" collar that is too long and I can't lock the wheel on. Is there a special flange fo

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6ya6ya
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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: delta 23-880 bench grinder

You should be able to hold the grinding wheel with a pair of leather gloves on your hands and lossen the bolt. Look very carefully at the threads to make sure you are trying to lossen and not tighten. Some are left handed threads on bench grinders.

Posted on Sep 11, 2008

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SOURCE: grinder won't stay running

what is the mf(microfarad) rating and the voltage,then go to an industrial electical shopand buy one for the correct voltage and an (mf) equal or greater ,but not by more than 10%---mine cost $9.00-in Maine---good luck- MATT

Posted on Jan 04, 2009

  • 6 Answers

SOURCE: Given a bench grinder which did not work. How to test/fix?

I cleaned all the wiring connectors etc and used a 4-way extension cord with an i/o switch and thermal/arc breaker surge protector thingy. I had a piece of thick cable with a molded three prong plug which I had removed from a dead paper shredder (I think??) and connected the ground to the case (previously not connected) the black to the black and white to the white. I taped the connections and plugged the test cable into the extension thingy with its switch off and plugged it into the wall outlet. Then, with the grinder switch on, I gingerly switched on the extension thingy and the grinder (sans all moving parts) ie just the motor case and spindle (held securely in the B&D workmate) and viola(!) it worked fine and built up to very fast. I switched off the grinder switch and the motor slowed, taking an age to come to rest.
Then, I fitted a grinding wheel on the left hand thread end, tightened everything and retested, using the grinder switch to start it and it spun really fast.
Soooo, I guess the secure ground is an essential feature of a capacitor induction motor. I checked some old furnace motors that were "maturing" in the basement and they had no capacitor but only 2 wires...
I am now trying to remember which parts came off last and put it all back together. I plan to test it each time I put a part back...just in case. I hate it when you fix something on the bench and when rebuilt, it won't work...don't ask about the electric starter on the snowblower..not a happy puppy!
Please, pretty please and then some, do tell me if my "fix" is wrong and I could risk all kinds of nastiness.
Thanks,
Jenni.

Posted on Jan 26, 2009

rowdy45176
  • 2176 Answers

SOURCE: older black & decker bench grinder

Usually a new wire wheel comes with different size bushing just for the problem you are describing. Either that or take it back and get one specifically for your tool.

Posted on Feb 01, 2009

aguywithfeet
  • 20 Answers

SOURCE: delta gr150 runs slow and hot

Sounds like it's time to buy a new one. Seems like the windings are burned up. Check voltage at outlet and inspect cord for cuts and such, but i would bet the windings are shot. Sorry

Posted on Mar 31, 2009

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1 Answer

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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Need a delta grinding wheel Cat. No 23-583 36 grit coarse AL. OXIDE were can I find one?


It doesn't need to be Delta, all it needs is to be 8" diameter, same width (1" or 3/4" or 1/2" or whatever), and have an arbor hole (or plastic adapter) the right size - they're all pretty standard.

You can buy wheels like that locally at your hardware store, or online at Amazon or eBay or Sears or any number of other places. They're nearly as common as dirt, and really inexpensive.

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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)

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I have a single speed Delta 8" bench grinder. How


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1 Answer

Both wheels have a noticeable wobble. Can this be corrected?


Yes, the wobble can be fixed. First, remove both wheels and check the shaft bearings/bushings for wear. Make certain the grinder is unplugged and mounted securely. Try moving the shafts up, down side to side; there should be little or no noticeable movement. If there is movement it is a major(time and money) problem. I'm not familiar with what the shafts ride on. It could be, ball bearings(the best-long lasting, least friction, most accurate, but expensive), sealed bearings(almost as good as ball bearings, with many of the same attributes) and bushings(least expensive to produce and fit and cause the most friction. If excessive up,down side to side movement is present a decision must be made as to how much money/time you want to invest. If the shaft exhibit little movement; check if the shaft is running true/straight. Turn the grinder by hand while observing the shaft for bends. If none are seen by eye use a magnetic base micrometer to check run out(deviation from straight). If a micrometer isn't available; bend a short length of wire(coat hanger works nicely) with a small hook on one end and then put a pointer end on the other. Put a screw thought the end with the hook to mount it to the base of the grinder. Then bend the pointed end so it just touches the shaft. Rotate the shaft and notice if the distance changes between the point of the wire and the grinder shaft. Repeat for the other side. A couple of thousands won't hurt. However, any more and the cost effectiveness of tearing the grinder apart straightening the shaft must be considered. The most common cause of grinding wheel wobble is the wheels becoming out of true and/or unbalanced. This is easily cured with a wheel dressiing tool. The tool grinds the wheels in place. By gringing the wheels on the grinder they balance the wheel, true the wheel to the shaft and clean it of imbeded soft materials, aluminum, wood and so forth.

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1 Answer

I need an owners manual for delta gr450 8


Here's a link to download the pdf.
http://www.dewaltservicenet.com/documents/English/Instruction%20Manual/Delta/A15786.pdf

If it doesn't work, start here:
http://www.deltaportercable.com

Mar 02, 2010 | Delta Shopmaster 8" Bench Grinder

2 Answers

Grinder wheel wobbling


check bearing for play and or race for wear on wheel

Oct 06, 2009 | Grinders

1 Answer

Older black & decker bench grinder


Usually a new wire wheel comes with different size bushing just for the problem you are describing. Either that or take it back and get one specifically for your tool.

Jan 31, 2009 | Black & Decker 3/4 Hp, 8" 205MM, Heavy...

2 Answers

Grinder won't stay running


The capacitor is easy to change and can be matched once you remove it by any electronics parts house.

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1 Answer

Delta 23-880 bench grinder


You should be able to hold the grinding wheel with a pair of leather gloves on your hands and lossen the bolt. Look very carefully at the threads to make sure you are trying to lossen and not tighten. Some are left handed threads on bench grinders.

Aug 29, 2008 | Delta ShopMaster 8in Grinder with Light...

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