There are some fittings that just have small rings around them. They look
like a thread but are parallel rings. They are made to be driven into a
smooth hole with no threads.
If you are turning the wrench and it does not unscrew, this may be what you
have.
If you have to drill to get the old one out try a left hand drill bit. Often
the left hand rotation of the drill bit loosens the thread and unscrews it.
I have never had much luck with EZ-outs if the threads are rusted.
73
Gary K4FMX
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> Don W7WLL
> Sent: Friday, April 10, 2015 12:57 PM
> To: Towertalk
> Subject: Re: [TowerTalk] Zerk fitting for MA-40
>
> IMHO, use an EZ-out, inexpensive and work. I've never seen a Zerk that
> was
> not tapped but surely could exist. Mine are tapped. Even if you have to
> end
> up drilling it out you can rethread. Just keep the drill size of the EZ-
> Out
> doesn't work less that the tap size specified for the Zerk thread. Be
> sure
> to THROUGHLY flush out the fitting hole, don't want any chips or crud
> getting into the bearing. You can't put to much grease in, you should
> see it
> oozing out before stopping the greasing.
>
> Don W7WLL
>
> -----Original Message-----
> From: Kurt Cathcart. KR2C
> Sent: Friday, April 10, 2015 9:26 AM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Zerk fitting for MA-40
>
> Good information everybody. And quick too! Thank you.
>
> One more question. Removing the remains of the Zeck fitting, would
> anybody know if this is tapped or pressed?
>
> -Kurt
> KR2C
>
>
> On 4/10/2015 11:59 AM, Kurt Cathcart. KR2C wrote:
> > I have a US Tower MA-40 with the rotator base. The last time I
> greased
> > the bearing, the Zerk fitting broke when I was removing the grease
> gun.
> > Does anybody have an idea of what I should replace it with? I got
> > crickets from US Tower.
> >
> > -Kurt
> > KR2C
> >
> > _______________________________________________
> >
> >
> >
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