Left handed drills have the battery polarity reversed as well...requires a
special charger. :-) Also don't forget to have a metric crescent wrench
available to take out the remains of the zerk fitting when it gets loosened up.
Chris
KF7P
On Apr 10, 2015, at 1:04 PM, TexasRF--- via TowerTalk wrote:
> 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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