TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Bench Grinder

WEAK!

Welcome Guest, Log in or Register

Author

Mitch - MS

06-10-2002 13:03:52

Report to Moderator

I have a Black & Decker bench grinder, had it about 12 years, - bought new - that performed like a champ until I moved it to another shop. Now it starts up fine, but loses power as soon as I start grinding. I also moved a welder to the same shop, and it works fine. I have tried plugging in to a different wall socket and I get the same results. Is it time for a new grinder or do any of you have any suggestions on what my problem might be?
Thanks for listening,
Mitch

[Log in to Reply] [No Email]

Thanks Guys!

06-11-2002 21:47:19

Report to Moderator

Re: Bench Grinder - WEAK! in reply to Mitch - MS, 06-10-2002 13:03:52

I'll check all these ideas out this weekend and let ya'll know what I find.
Thanks again,
Mitch

[Log in to Reply] [No Email]

JD720

06-11-2002 20:12:59

Report to Moderator

Re: Bench Grinder - WEAK! in reply to Mitch - MS, 06-10-2002 13:03:52

If the wiring in the shop is sufficient I would recomend checking your ground rod at the shop making sure it is deep enough and of sufficient size. I figure that your power leads are sufficient to supply the building since you are able to operate a welder (i am assuming 220v for the sake of this argument). Since the 220 uses two power legs and no neutral or gound to function ( i know it has at least a ground but that is for safety not function it may even have both (4prong plug)). However 110v needs a good ground/netural to work. Therefore if the 220v welder works fine I would suspect the ground rod. You know you can run a single strand of wire to your building drive a ground rod in place and connect your 110v device to the hot and the ground and it will work perfectly. By the way one thing you can try if you think the ground rod is ok would be to pour water around the rod and let it soak in and try the grinder again. If the grinder runs better then it is a grounding problem.

[Log in to Reply] [No Email]

MarkB

06-12-2002 03:13:52

Report to Moderator

Re: Re: Bench Grinder - WEAK! in reply to JD720, 06-11-2002 20:12:59

JD,

In a properly wired building, there should be NO current traveling through the ground rod. It's there only for safety. But if the NEUTRAL wire has a bad connection some place, then what you say could be true; the 220V welder wouldn't be affected.

[Log in to Reply] [No Email]

JD720

06-12-2002 05:14:39

Report to Moderator

Re: Re: Re: Bench Grinder - WEAK! in reply to MarkB, 06-12-2002 03:13:52

Check your service panel, you will find that the neutral and "ground" share a commom connection between their respective busses. As for the "utility neutral" that is supplied via a ground rod at the transformer. Either way it is a ground rod that provides both the netural and the ground to allow 110v operation.
Now, given a 3 wire receptical it is true that there should be no current flow to ground. But that ground is strictly for safety sake to provide a path of least resistance to the earth rather than through the operator should a malfunction occur.

[Log in to Reply] [No Email]

MarkB

06-11-2002 19:04:47

Report to Moderator

Re: Bench Grinder - WEAK! in reply to Mitch - MS, 06-10-2002 13:03:52

If you have an ac voltmeter, plug it in to the adjacent outlet while you run your grinder. I'll bet the voltage is dropping while the grinder is under load. (If you don't have a voltmeter, use your trouble light and see if it dims.)

Your welder is almost certainly on a different circuit. Some cheapskate probably wired the 110 outlets with 14 gauge wire. You need to run a new circuit back to the breaker panel with 12 gauge (or better yet 10 gauge wire.)

[Log in to Reply] [No Email]

Al English

06-11-2002 06:18:40

Report to Moderator

Re: Bench Grinder - WEAK! in reply to Mitch - MS, 06-10-2002 13:03:52

Hi Mitch,

I'm guessing that the either the voltage at your new shop is lower, or more likely, that the 110V receptacles are wired with smaller conductors than your previous facility. However, it wouldn't hurt to make sure the terminals in the service panel are tight. It's also possible the grinder just happened to develop a problem at the time of the move, but here's a possibility that happened to me on a belt sander. If the motor was full of grinding dust, and that dust was disturbed/redistributed during the move, it could affect the performance of the motor. I hope this helps...Al English

[Log in to Reply] [No Email]

Mitch - MS

06-11-2002 11:54:29

Report to Moderator

Re: Re: Bench Grinder - WEAK! in reply to Al English, 06-11-2002 06:18:40

Thanks Al,
I imagine it's full of dust! I'll blow it out real good and give it a try. If that doesn't fix it, I'll start looking at the receptical. I have a neighbor that's an electrician - may get him to check my wiring for me.
The grinder is about 12 years old, but it hasn't been used hard, just often.
I'll let you now what I find.
Thanks again,
Mitch Sisson

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy