Story with PICTURES: Repairing 7" Industrial Angle Grinder

A story with pictures, how I repaired a broken angle grinder.

It is a massive 7" industrial angle grinder with 5/8-11 threaded shank.

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The story is not yet over -- I cannot identify who made it (the nameplace is damaged beyond recognition) and it needs a power switch. For now, it can run off a foot pedal. So, if anyone knows what it is, please let me know. My guess is that it is Black and Decker -- I hope that they may still have a switch for it.

I also added RSS feed for my projects page, so it is a little like a blog now, people can subscribe to it with a feed reader and get new pages automatically.

i
Reply to
Ignoramus32140
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Indeed. It is a B&D. Ive given a couple away to someone here IRRC

Gunner

"If I'm going to reach out to the the Democrats then I need a third hand.There's no way I'm letting go of my wallet or my gun while they're around."

"Democrat. In the dictionary it's right after demobilize and right before demode` (out of fashion).

-Buddy Jordan 2001

Reply to
Gunner

OH Iggy. You are such a genius! You repaired an angle grinder by replacing a cable and stopping halfway because of a broken switch. Really incredible!

In your place, I would crosspost that all over the usenet. Just like your political / homosexual crap postings that don't belong to the groups you post them in.

Again, an incredible story that is way bejond imagination for the rest of us! Thanks for sharing all your crap with us.

Nick

Reply to
Nick Müller

I will try to call them, maybethey have a suitable switch as a spare part...

i
Reply to
Ignoramus4299

Found some trigger switches on ebay, I hope that I could fit one of them in. That's better and safer than using foot pedals etc. These are plastic switches for Milwaukee tools, but I think that with some amount of work I could fit one.

i
Reply to
Ignoramus4299

i, it may be worth considering using a nylon clamp bolt / grub for the cable retention. I'd be worried about the bolt end wearing through the cable sheath and into the conductors (even though the protective earth do its job). Maybe a plastic slug against the cable ahead of the bolt.

Perhaps some form of plastic clamp inside the handle to stop cable pull out might be worth it too. Electrocution is kind of permanent!!

Nice blue spark pics.

Reply to
Borat

Yes, I agree and will do something like that, though the cable does not actually rub against the end of the screw -- but I agree that it is a good practice to provide some cushion.

Well, the cable is actually held very tightly by this. I will insert a cushion piece, as well. It works as well as anything else. I found a trigger switch on ebay and will try to install it, and will add cusion to the cable/screw connection at the same time.

Also, the metallic case is well grounded, with a suitable terminal etc.

I appreciate your comment.

i
Reply to
Ignoramus4299

IRRC..it was Grant Irwin that I gave them too. Perhaps he will swap photos and data plate info?

Gunner

"If I'm going to reach out to the the Democrats then I need a third hand.There's no way I'm letting go of my wallet or my gun while they're around."

"Democrat. In the dictionary it's right after demobilize and right before demode` (out of fashion).

-Buddy Jordan 2001

Reply to
Gunner

That would be nice. Anyway, since working used grinders of this size are not very expensive, all this restoration is kind of a waste of time, but I think it's good practice and does not cost much.

i
Reply to
Ignoramus4299

Nick, it is relatively difficult, though not impossible, to get me offended. You are not one of the people who can do it because you are not smart enough for that. Sorry if this comes across as rude.

As for the matter of what you said, the project (which is now waiting for the power switch), is not the most sophisticated, but I thought it may be interesting for some people to see "what's inside" those grinders.

i
Reply to
Ignoramus4299

No offense here. I'm really impressed seeing an angle grinder. Especially one that is opened by a devine mechanic like you.

Oh no! Not rude at all. I even wouldn't know which way round to open a screw (you missed that note). I'll ask you, OK? And I also bet that noone of the weldors you showed off your incredible skills ever saw an open angle grinder or even was nuts enough to change a cable. That is really far out!

An increadible project! Will it be finished as fast as your TIG, or was that an boat anchor?

Of course, not for you. But for the rest of the world. Did I say that it really is incredible?

It is a interesting as your interest in homosexuality and pedophile you to tend to post in the wrong groups.

BTW: What is the reason that you change your email-address so frequently?

I tip my hat (but don't bow)!

Nick

Reply to
Nick Müller

Good stuff, Iggy. I enjoy your posts about the various projects and such. Interestingly, I have both an old drill and an old grinder that look like the ones you posted. The drill works fine, but the grinder has a broken trigger switch. The switch mechanism is there but the bottom part of the trigger shoe is broken off. The grinder works fine but you have to grab the switch between your fingers and pull it out to turn the grinder off each time. Not the safest of situations.

Reply to
wrace

Yes... Thanks... I bought a few trigger switches on ebay, will son try to install one and will share how it worked out.

Called Black and Decker earlier today, spent 40 minutes on hold and gave up.

i
Reply to
Ignoramus4299

Isn't your hatred of Iggy perhaps getting a bit out of hand? It might not be a sophisticated project, but it is on topic for the group.

I must say I agree here. Those of us who don't live in the US aren't going to find much interest in tales about paedophile senators.

Best wishes,

Chris

Reply to
Christopher Tidy

Yeah, the bolt tearing into a power cord as a strain relief is a good example of something bad, and not to copy.

Reply to
Cydrome Leader

It is not actually tearing it, I verified it, the outer insulation remains perfectly intact, just compressed somewhat.

i
Reply to
Ignoramus7272

yes.

It has no sharp edges, yes. I did verify what it was doing to the cable, and found that it was not tearing the insulation. I will put some material between bolt and cable, at the time when I install the switch, but it is not strictly necessary.

That insulation, on the particular cable that I used, is very tough.

That seems less tidy, and also, more prone to problems as wires inside could be disturbed if the cable is "pushed in" from time to time.

i
Reply to
Ignoramus7272

I think if it's a fairly large bolt, of a similar diameter to the cord, and you turn the end of the bolt in the lathe to ensure that it has no sharp edges, it's an acceptable thing to do. An alternative which is crude but effective is to tie a knot in the cord just inside the housing.

I have certainly seen far worse. I stayed in a place in Belgium this summer which had exposed live terminals on the bathroom lightswitch, more exposed terminals in the corridor and on the ceiling lights, and wires halfway across a wall connected with those tiny screw-on cups. I told the guy about it but I'm not sure he saw the problem.

Best wishes,

Chris

Reply to
Christopher Tidy

ICan you supply a picture of the switch and dimensions. I have a large collection of NOS powertool swithches and might have one. Email me privately.

Chuck P.

Reply to
MOP CAP

Reply to
Ignoramus24560

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