Re: [TowerTalk] Zerk fitting for MA-40

["Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>]

With rusted threads, use a good dose of "PB Blaster" and let set over 
night. it should come out easily the next day.
73

Roger (K8RI)


On 4/10/2015 2:14 PM, Gary Schafer wrote:
> 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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--

73

Roger (K8RI)


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