You hit the nail on the head Patrick. Most important is don't run it out
of lube because you never checked the level... that would feel real bad for
sure.
KM5VI
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
Patrick Greenlee
Sent: Thursday, July 02, 2015 9:57 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Worm Gears
Just guessing but suspect lube change intervals are keyed to working time
and load. Unless you "play" with your tower a lot it might take a long time
on the calendar to rack up much actual working time. On the other hand it
might be cheap and easy enough such that you might just do it and feel
better. Be sure to inspect the old lubricant. You can pour it (or a
representative sample from a stirred master volume) into a clear container
(I like glass peanut butter jars from Laura Scudder) let it settle for
several hours (multiple days is OK) and then carefully pour off the top to
see how much, if any, powdered metal or (heaven
forbid) metal flakes there are which are wear indicators. Big flakes can =
big problems. A little powdered metal may be no big deal on the first lube
change (wearing in/breaking in) but may indicate an incipient problem if you
get plenty of powder every time you change lubricant. I typically put a
magnet in lube samples to get a feel for how much steel is wearing, if you
have steel under load and moving in your equipment.
Patrick NJ5G
On 7/1/2015 10:26 PM, k2cb@comcast.net wrote:
> For those of us who own US Tower models with the Hub City boxes - how
often should we be changing the lubricant? I see no mention or concern
whatsoever from US Tower on the matter. My tower is now approaching 5 years
in service, so it is in the back of my mind..........
> Eric
> K2CB
>
>
> ----- Original Message -----
>
> From: towertalk-request@contesting.com
> To: towertalk@contesting.com
> Sent: Wednesday, July 1, 2015 10:56:13 PM
> Subject: TowerTalk Digest, Vol 151, Issue 2
>
> Send TowerTalk mailing list submissions to
> towertalk@contesting.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://lists.contesting.com/mailman/listinfo/towertalk
> or, via email, send a message with subject or body 'help' to
> towertalk-request@contesting.com
>
> You can reach the person managing the list at
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>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of TowerTalk digest..."
>
>
> Today's Topics:
>
> 1. Re: Worm Gears (Richard (Rick) Karlquist)
> 2. Re: Worm Gears (Robert Harmon)
> 3. FW: Worm Gears (Matt)
> 4. Fwd: Fwd: Antenna near chimney - bad idea? (Hans Hammarquist)
> 5. Re: Worm Gears (Robert Harmon)
> 6. Fwd: Fwd: Fwd: Antenna near chimney - bad idea?
> (Hans Hammarquist)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 01 Jul 2015 14:52:00 -0700
> From: "Richard (Rick) Karlquist" <richard@karlquist.com>
> To: Robert Harmon <k6uj@pacbell.net>, TowerTalk@contesting.com
> Subject: Re: [TowerTalk] Worm Gears
> Message-ID: <55946100.6010105@karlquist.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
>
>
> On 6/30/2015 3:52 PM, Robert Harmon wrote:
>> I dont want sabotage our worm gear discussion but wanted to throw in a
>> question about gear lube for a worm gear box. I am going to change the
gear oil in my US tower
>> box. It is a Hub City worm gear. Thinking of using a Mobil 1 Synthetic
gear lube, a PAG type.
>> Dont ask me what the PAG means but Hub City recomends a PAG
>> synthetic. Any one used a synthetic ?
>>
>> Bob
>> K6UJ
>>
> Mobil 1 LS comes in 75W90 and 75W140. Which is correct for Hub City?
> Is 1 quart enough for a gear box?
>
> Rick N6RK
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 1 Jul 2015 15:51:08 -0700
> From: Robert Harmon <k6uj@pacbell.net>
> To: TowerTalk@contesting.com
> Subject: Re: [TowerTalk] Worm Gears
> Message-ID: <80E93054-6716-4629-92AD-588A7C83A11A@pacbell.net>
> Content-Type: text/plain; charset=us-ascii
>
> Hi Rick,
>
> It needs to be a specific synthetic gear lube.
> I called Hub City and they recommend their 460 PAG for worm gears.
> They said that the Mobil 1 Glycol 460 is what they are using.
> My Hub City worm gear box takes over a quart so I am ordering 2 quarts.
> BTW, they should not be filled to the top. About 30 % air space should
be left for thermal expansion.
> Heres some Hub City info on worm gear lubes, (below) and below that
> the specs on the Mobil 1 460 they are talking about.
> I am ordering mine on line, not stocked anywhere locally.
>
>
> Hub City worm gear lube instruction sheet
> http://www.hubcityinc.com/documents/LI-WG-S-D-071814.pdf
> <http://www.hubcityinc.com/documents/LI-WG-S-D-071814.pdf>
>
>
> Their recommended Mobil 1 synthetic lube
> http://www.wardieh.com/admin/document/(2786f39d8352b23e50cf17c424e017c
> 5).pdf
> <http://www.wardieh.com/admin/document/(2786f39d8352b23e50cf17c424e017
> c5).pdf>
>
>
> Bob
> K6UJ
>
>
>
>
>
>
>
>> On Jul 1, 2015, at 2:52 PM, Richard (Rick) Karlquist
<richard@karlquist.com> wrote:
>>
>>
>>
>> On 6/30/2015 3:52 PM, Robert Harmon wrote:
>>> I dont want sabotage our worm gear discussion but wanted to throw in a
>>> question about gear lube for a worm gear box. I am going to change
the gear oil in my US tower
>>> box. It is a Hub City worm gear. Thinking of using a Mobil 1 Synthetic
gear lube, a PAG type.
>>> Dont ask me what the PAG means but Hub City recomends a PAG
>>> synthetic. Any one used a synthetic ?
>>>
>>> Bob
>>> K6UJ
>>>
>> Mobil 1 LS comes in 75W90 and 75W140. Which is correct for Hub City?
>> Is 1 quart enough for a gear box?
>>
>> Rick N6RK
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 1 Jul 2015 18:06:50 -0500
> From: "Matt" <maflukey@gmail.com>
> To: <towertalk@contesting.com>
> Subject: [TowerTalk] FW: Worm Gears
> Message-ID: <006601d0b452$9e460010$dad20030$@gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi Rick,
>
> Viscosity of ISO 460 converts to SAE 140, 75W140.
>
> Matt
> KM5VI
>
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
> Richard (Rick) Karlquist
> Sent: Wednesday, July 01, 2015 4:52 PM
> To: Robert Harmon; TowerTalk@contesting.com
> Subject: Re: [TowerTalk] Worm Gears
>
>
>
> On 6/30/2015 3:52 PM, Robert Harmon wrote:
>> I dont want sabotage our worm gear discussion but wanted to throw in a
>> question about gear lube for a worm gear box. I am going to change the
> gear oil in my US tower
>> box. It is a Hub City worm gear. Thinking of using a Mobil 1
>> Synthetic
> gear lube, a PAG type.
>> Dont ask me what the PAG means but Hub City recomends a PAG synthetic.
>> Any one used a synthetic ?
>>
>> Bob
>> K6UJ
>>
> Mobil 1 LS comes in 75W90 and 75W140. Which is correct for Hub City?
> Is 1 quart enough for a gear box?
>
> Rick N6RK
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 1 Jul 2015 20:07:47 -0400
> From: Hans Hammarquist <hanslg@aol.com>
> To: towertalk@contesting.com
> Subject: [TowerTalk] Fwd: Fwd: Antenna near chimney - bad idea?
> Message-ID: <14e4c173a5a-26a-30edf@webprd-m39.mail.aol.com>
> Content-Type: text/plain; charset=utf-8
>
> I have no idea what is generated burning store-bought duraflame fire logs.
I know that, brunt "wrong" generate a lot of chemical compounds, creosote
being one of them. I still wouldn't recommend putting anything near a
chimney. I know what my TV antenna looked like after a few years next to (on
top) of my chimney. Not a pretty picture.
>
>
> Hans - N2JFS
>
>
>
> -----Original Message-----
> From: John Keating <john.keating@sbcglobal.net>
> To: towertalk <towertalk@contesting.com>
> Sent: Tue, Jun 30, 2015 10:46 pm
> Subject: Re: [TowerTalk] Fwd: Antenna near chimney - bad idea?
>
>
> Suppose the only thing burned are those store-bought duraflame fire logs?
>
> John KK6PLG
>
>
> Date: Tue, 30 Jun 2015 15:21:00 -0400
>
> From: Hans
> Hammarquist <hanslg@aol.com>
>
> To: towertalk@contesting.com
>
> Subject:
> [TowerTalk] Fwd: Antenna near chimney - bad idea?
>
> Message-ID:
> <14e45ea4da6-38c1-2b2a1@webprd-m47.mail.aol.com>
>
> Content-Type: text/plain;
> charset=utf-8
>
>
> The biggest problem is corrosion. Any oil burner generate a small, but
> significant amount of acid that will corrode your tower, antenna,
> rotor, etc. faster than away from the chimney. I have not seen any
> problems with soot.
>
> Hans - N2JFS
>
>
>
> To:
> <towertalk@contesting.com>
>
> Subject: [TowerTalk] Antenna
> near
>
> chimney - bad idea?
>
> From: John Keating
> <john.keating@sbcglobal.net>
>
> Date: Mon,
>
> 29 Jun 2015 10:01:47 -0700
>
>
>
>
>
>
> I have limited options for placing my 40' tower and tribander at my
> QTH.
>
> One of
>
> them is next to the 2 story house very near the 33' chimney.
> Am wondering if
> anyone has experience...soot affecting rotor or antenna parts?
>
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk
> mailing
> list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Wed, 1 Jul 2015 18:55:23 -0700
> From: Robert Harmon <k6uj@pacbell.net>
> To: towertalk <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Worm Gears
> Message-ID: <FBEBFE42-E3A2-4211-A57F-CAD8D1E434BD@pacbell.net>
> Content-Type: text/plain; charset=us-ascii
>
> Matt,
>
> The viscosity is only part of the equation.
> I might be a comparable viscosity but there are many other ingredients
> that are formulated into the lubricants for specific applications.
> The gear lube we are discussing is a synthetic lube specifically
formulated for worm gears.
>
> Bob
> K6UJ
>
>
>
>> On Jul 1, 2015, at 4:06 PM, Matt <maflukey@gmail.com> wrote:
>>
>> Hi Rick,
>>
>> Viscosity of ISO 460 converts to SAE 140, 75W140.
>>
>> Matt
>> KM5VI
>>
>> -----Original Message-----
>> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of
>> Richard (Rick) Karlquist
>> Sent: Wednesday, July 01, 2015 4:52 PM
>> To: Robert Harmon; TowerTalk@contesting.com
>> Subject: Re: [TowerTalk] Worm Gears
>>
>>
>>
>> On 6/30/2015 3:52 PM, Robert Harmon wrote:
>>> I dont want sabotage our worm gear discussion but wanted to throw in a
>>> question about gear lube for a worm gear box. I am going to change
the
>> gear oil in my US tower
>>> box. It is a Hub City worm gear. Thinking of using a Mobil 1 Synthetic
>> gear lube, a PAG type.
>>> Dont ask me what the PAG means but Hub City recomends a PAG synthetic.
>>> Any one used a synthetic ?
>>>
>>> Bob
>>> K6UJ
>>>
>> Mobil 1 LS comes in 75W90 and 75W140. Which is correct for Hub City? Is
1
>> quart enough for a gear box?
>>
>> Rick N6RK
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> Message: 6
> Date: Wed, 1 Jul 2015 22:56:03 -0400
> From: Hans Hammarquist <hanslg@aol.com>
> To: towertalk@contesting.com
> Subject: [TowerTalk] Fwd: Fwd: Fwd: Antenna near chimney - bad
> idea?
> Message-ID: <14e4cb145ec-26a-315a6@webprd-m39.mail.aol.com>
> Content-Type: text/plain; charset=utf-8
>
> Think about it, that chimney is connected to a wood burning stow. I guess
wood gives off acid as well.
>
>
> Hans - N2JFS
>
>
>
> -----Original Message-----
> From: Hans Hammarquist via TowerTalk <towertalk@contesting.com>
> To: towertalk <towertalk@contesting.com>
> Sent: Wed, Jul 1, 2015 9:47 pm
> Subject: [TowerTalk] Fwd: Fwd: Antenna near chimney - bad idea?
>
>
> I have no idea what is generated burning store-bought duraflame fire logs.
I
> know that, brunt "wrong" generate a lot of chemical compounds, creosote
being
> one of them. I still wouldn't recommend putting anything near a chimney. I
know
> what my TV antenna looked like after a few years next to (on top) of my
chimney.
> Not a pretty picture.
>
>
> Hans - N2JFS
>
>
>
> -----Original Message-----
> From:
> John Keating <john.keating@sbcglobal.net>
> To: towertalk
> <towertalk@contesting.com>
> Sent: Tue, Jun 30, 2015 10:46 pm
> Subject: Re:
> [TowerTalk] Fwd: Antenna near chimney - bad idea?
>
>
> Suppose the only thing
> burned are those store-bought duraflame fire logs?
>
> John KK6PLG
>
>
> Date:
> Tue, 30 Jun 2015 15:21:00 -0400
>
> From: Hans
> Hammarquist
> <hanslg@aol.com>
>
> To: towertalk@contesting.com
>
> Subject:
> [TowerTalk] Fwd:
> Antenna near chimney - bad
> idea?
>
> Message-ID:
> <14e45ea4da6-38c1-2b2a1@webprd-m47.mail.aol.com>
>
> Content-Type:
> text/plain;
> charset=utf-8
>
>
> The biggest problem is corrosion. Any oil
> burner
> generate a small, but
> significant amount of acid that will corrode your
> tower,
> antenna, rotor,
> etc. faster than away from the chimney. I have not seen
> any
> problems with
> soot.
>
> Hans - N2JFS
>
>
>
> To:
>
> <towertalk@contesting.com>
>
> Subject: [TowerTalk]
> Antenna
> near
>
> chimney - bad idea?
>
> From: John
> Keating
> <john.keating@sbcglobal.net>
>
> Date: Mon,
>
> 29 Jun 2015 10:01:47
> -0700
>
>
>
>
>
>
> I have limited options for placing my 40' tower and
> tribander at my
> QTH.
>
> One of
>
> them is next to the 2 story house very near
> the 33' chimney.
> Am wondering if
> anyone has experience...soot affecting rotor
> or
> antenna
> parts?
>
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk
> mailing
> list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk
> mailing
> list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> End of TowerTalk Digest, Vol 151, Issue 2
> *****************************************
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
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