Right again, Chris but you forgot to add a caveat re use south of the
equator where the Coriolis effect is reversed.
Patrick
On 4/10/2015 2:19 PM, Chris wrote:
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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