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Re: [TowerTalk] Zerk fitting for MA-40

To: patrick_g@windstream.net, towertalk@contesting.com
Subject: Re: [TowerTalk] Zerk fitting for MA-40
From: TexasRF--- via TowerTalk <towertalk@contesting.com>
Reply-to: TexasRF@aol.com
Date: Fri, 10 Apr 2015 15:04:27 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Patrick, assuming ATF means automatic transmission fluid, a wiki search  
shows there are more than ten different flavors in use. Wonder which one is  
recommended?
 
On the subject of left handed drill bits: what would the intended use be?  
Drilling left handed holes? Use with left handed drill motor? Having 
survived  thus far without needing one I am wondering what I have missed out 
on. 
Since  easy out tools are readily available and most likely a lot more robust 
than left  handed drill bits seems the actual need is not great. Probably 
less expensive as  well and I see one tool fits several size bolts.
 
Now that it has come to light that drill bits can be used in place of an  
easy out tool, it seems that there will be no need to buy an easy out tool 
for  reverse threaded bolts; a regular drill bit will work for that purpose.
 
Yea, it is a slow day here!
 
73,
Gerald K5GW
 
 
 
In a message dated 4/10/2015 1:41:01 P.M. Central Daylight Time,  
patrick_g@windstream.net writes:

An  extensive university (I forget which one) engineering department 
study  tested penetrating oil products like Rust Buster, WD-40, etc. 
None,  including the expensive ones beat a 50-50 mix of ATF and Acetone.

I  mixed up some and have been getting good results.  I recommend you try  
this mix before you give up on Easy-Outs and their ilk.  Left handed  
drill bits work in some instances but be careful with the smaller sizes  
as when they break off they are in the way of trying other  approaches.

Good luck to you.

Patrick   NJ5G

On  4/10/2015 1:14 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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