(Slightly OT): Angle grinders.

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bigegg - 04 Apr 2009 20:27 GMT

I know this is not really "model" engineering, but I'm hoping someone
can solve a recurring problem I have with 9" angle grinders:

The f***ing nut that holds the disk on keeps overtightening so I have to
use an extender bar to unlock it.
This usually ends up knacking the pins on the spanner, so I have to buy
a replacement.

so:
Can anybody recommend a (decent) supplier of pin spanner, or replacement
nut that I can get a proper spanner on, or suggestions as to avoid the
problem in the first place.

ta.

Signature

B.I. Gegg

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Richard Edwards - 04 Apr 2009 20:53 GMT

>I know this is not really "model" engineering, but I'm hoping someone
>can solve a recurring problem I have with 9" angle grinders:
[quoted text clipped - 10 lines]
>
>ta.

Use a blotter paper on the inside of the disc? If no blotter then disc
is spinning and tightening the nut. Basically increase the friction
between disc and the drive plate.

Richard

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duttondock@onetel.com - 04 Apr 2009 21:46 GMT

> >I know this is not really "model" engineering, but I'm hoping someone
> >can solve a recurring problem I have with 9" angle grinders:
[quoted text clipped - 16 lines]
>
> Richard

Also tighten the nut *firmly* before use. This reduces the chance of
it slipping & self-tightening in use. In my experience this self-
tightening is only ever a problem when using cutting discs and then
getting them jammed in the cut.

Tim

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bigegg - 05 Apr 2009 00:03 GMT

>>> I know this is not really "model" engineering, but I'm hoping someone
>>> can solve a recurring problem I have with 9" angle grinders:
>>> The f***ing nut that holds the disk on keeps overtightening so I have to
>>> use an extender bar to unlock it.

> In my experience this self-
> tightening is only ever a problem when using cutting discs and then
> getting them jammed in the cut.

yep, that's usually how it happens!

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mark - 04 Apr 2009 21:59 GMT

> I know this is not really "model" engineering, but I'm hoping someone
> can solve a recurring problem I have with 9" angle grinders:
[quoted text clipped - 13 lines]
> --
> B.I. Gegg

I suppose you know that the nut goes on one way for grinding disc's
and the other way reversed for cutting disks

all the best.markj

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Julian - 04 Apr 2009 22:05 GMT

>I know this is not really "model" engineering, but I'm hoping someone
> can solve a recurring problem I have with 9" angle grinders:
[quoted text clipped - 8 lines]
> nut that I can get a proper spanner on, or suggestions as to avoid the
> problem in the first place.

I wonder if a dab of copper slip or moly grease on the threads would help
stop it binding up? FWIW I have a Chop saw, 9", 7" and 4 grinderettes and
never suffer the problem you describe.

Julian.

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Mark Rand - 04 Apr 2009 22:30 GMT

>so:
>Can anybody recommend a (decent) supplier of pin spanner, or replacement
>nut that I can get a proper spanner on, or suggestions as to avoid the
>problem in the first place.
>
>ta.

If all the other suggestions fail, try thse:-

http://www.axminster.co.uk/product-Tool-less-Angle-Grinder-Nut-20494.htm

I got a couple to replace waled out nuts on grinders that I inherited (dad
didn't use a pin spanner). They seem to work.

Mark Rand
RTFM

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bigegg - 05 Apr 2009 00:01 GMT

>> so:
>> Can anybody recommend a (decent) supplier of pin spanner, or replacement
>> nut that I can get a proper spanner on, or suggestions as to avoid the
>> problem in the first place.

> http://www.axminster.co.uk/product-Tool-less-Angle-Grinder-Nut-20494.htm
>
> I got a couple to replace waled out nuts on grinders that I inherited (dad
> didn't use a pin spanner). They seem to work.

That looks like the sort of thing I'm looking for!

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Model Forum / General / Models / April 2009

(Slightly OT): Angle grinders.