[TowerTalk] Zerk fitting for MA-40

[Roger (K8RI) on TT]

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 at 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 at 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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