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Posted by Toller on September 15, 2006, 3:40 pm
I have never used anything but grinding (what, blades, inserts, disks?) in
my Makita 4.5" angle grinder, but today I need a cutting disk. It is much
thinner, so it just spins. The retaining nut is flat on one side and
flanged on the other. If I turn it around so the flat side is down, rather
than the flanged side down, it seems to work okay.
But I don't have the instructions, so I don't know if this is actually
proper.
Any catastrophe happen if I use it like this? If so, how do I mount the
cutting disk?
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Posted by Chris Lewis on September 15, 2006, 5:09 pm
> I have never used anything but grinding (what, blades, inserts, disks?) in
> my Makita 4.5" angle grinder, but today I need a cutting disk. It is much
> thinner, so it just spins. The retaining nut is flat on one side and
> flanged on the other. If I turn it around so the flat side is down, rather
> than the flanged side down, it seems to work okay.
> But I don't have the instructions, so I don't know if this is actually
> proper.
> Any catastrophe happen if I use it like this? If so, how do I mount the
> cutting disk?
In mine, it's the arbor washer that's "flanged" (it's actually a small
increase in thickness immediately adjacent to the hole - so I'll call
this the convex side).
The instructions say to use the convex side for thick wheels, and the flat
(actually, in my case it's slightly concave) side for thin wheels.
Check your grinder to see whether it seems more logical to flip the arbor
washer rather than the nut.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.
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Posted by John McGaw on September 15, 2006, 5:24 pm
Toller wrote:
> I have never used anything but grinding (what, blades, inserts, disks?) in
> my Makita 4.5" angle grinder, but today I need a cutting disk. It is much
> thinner, so it just spins. The retaining nut is flat on one side and
> flanged on the other. If I turn it around so the flat side is down, rather
> than the flanged side down, it seems to work okay.
> But I don't have the instructions, so I don't know if this is actually
> proper.
> Any catastrophe happen if I use it like this? If so, how do I mount the
> cutting disk?
>
>
Probably the safest thing to do, lacking the paper manual, is to go to
Makita's website's "Service" section and look at the online manual. It
seems likely to me that any method of attachment which keeps the blade
centered and can be locked down tight would probably work well enough
but since the manual is only a few clicks away why not be sure?
--
John McGaw
[Knoxville, TN, USA]
http://johnmcgaw.com
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Posted by Toller on September 15, 2006, 5:49 pm
> Toller wrote:
>> I have never used anything but grinding (what, blades, inserts, disks?)
>> in my Makita 4.5" angle grinder, but today I need a cutting disk. It
>> is much thinner, so it just spins. The retaining nut is flat on one side
>> and flanged on the other. If I turn it around so the flat side is down,
>> rather than the flanged side down, it seems to work okay.
>> But I don't have the instructions, so I don't know if this is actually
>> proper.
>> Any catastrophe happen if I use it like this? If so, how do I mount the
>> cutting disk?
> Probably the safest thing to do, lacking the paper manual, is to go to
> Makita's website's "Service" section and look at the online manual. It
> seems likely to me that any method of attachment which keeps the blade
> centered and can be locked down tight would probably work well enough but
> since the manual is only a few clicks away why not be sure?
> --
Great suggestion; isn't the internet incredible!
It says my idea is correct, but also says to use a guard that covers the
bottom of the disk.
As long as I have the bottom pointed away from me, that shouldn't be
critical, should it?
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Posted by RayV on September 15, 2006, 8:32 pm
Toller wrote:
> Great suggestion; isn't the internet incredible!
> It says my idea is correct, but also says to use a guard that covers the
> bottom of the disk.
> As long as I have the bottom pointed away from me, that shouldn't be
> critical, should it?
As long as the wheel doesn't shatter. Had that happen to me once, I
was wearing goggles. So of course the shrapnel went no where near my
face. Right into my other hand.
If you just keep everything out of the line of rotation you *should* be
ok.
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