[TowerTalk] Worm Gears
Patrick Greenlee
patrick_g at windstream.net
Thu Jul 2 10:56:40 EDT 2015
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 at 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 at contesting.com
> To: towertalk at contesting.com
> Sent: Wednesday, July 1, 2015 10:56:13 PM
> Subject: TowerTalk Digest, Vol 151, Issue 2
>
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> 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 at karlquist.com>
> To: Robert Harmon <k6uj at pacbell.net>, TowerTalk at contesting.com
> Subject: Re: [TowerTalk] Worm Gears
> Message-ID: <55946100.6010105 at 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 at pacbell.net>
> To: TowerTalk at contesting.com
> Subject: Re: [TowerTalk] Worm Gears
> Message-ID: <80E93054-6716-4629-92AD-588A7C83A11A at 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/(2786f39d8352b23e50cf17c424e017c5).pdf <http://www.wardieh.com/admin/document/(2786f39d8352b23e50cf17c424e017c5).pdf>
>
>
> Bob
> K6UJ
>
>
>
>
>
>
>
>> On Jul 1, 2015, at 2:52 PM, Richard (Rick) Karlquist <richard at 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 at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 1 Jul 2015 18:06:50 -0500
> From: "Matt" <maflukey at gmail.com>
> To: <towertalk at 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 at contesting.com] On Behalf Of
> Richard (Rick) Karlquist
> Sent: Wednesday, July 01, 2015 4:52 PM
> To: Robert Harmon; TowerTalk at 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 at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 1 Jul 2015 20:07:47 -0400
> From: Hans Hammarquist <hanslg at aol.com>
> To: towertalk at contesting.com
> Subject: [TowerTalk] Fwd: Fwd: Antenna near chimney - bad idea?
> Message-ID: <14e4c173a5a-26a-30edf at 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 at sbcglobal.net>
> To: towertalk <towertalk at 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 at aol.com>
>
> To: towertalk at contesting.com
>
> Subject:
> [TowerTalk] Fwd: Antenna near chimney - bad idea?
>
> Message-ID:
> <14e45ea4da6-38c1-2b2a1 at 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 at contesting.com>
>
> Subject: [TowerTalk] Antenna
> near
>
> chimney - bad idea?
>
> From: John Keating
> <john.keating at 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 at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Wed, 1 Jul 2015 18:55:23 -0700
> From: Robert Harmon <k6uj at pacbell.net>
> To: towertalk <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Worm Gears
> Message-ID: <FBEBFE42-E3A2-4211-A57F-CAD8D1E434BD at 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 at gmail.com> wrote:
>>
>> Hi Rick,
>>
>> Viscosity of ISO 460 converts to SAE 140, 75W140.
>>
>> Matt
>> KM5VI
>>
>> -----Original Message-----
>> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of
>> Richard (Rick) Karlquist
>> Sent: Wednesday, July 01, 2015 4:52 PM
>> To: Robert Harmon; TowerTalk at 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 at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> Message: 6
> Date: Wed, 1 Jul 2015 22:56:03 -0400
> From: Hans Hammarquist <hanslg at aol.com>
> To: towertalk at contesting.com
> Subject: [TowerTalk] Fwd: Fwd: Fwd: Antenna near chimney - bad
> idea?
> Message-ID: <14e4cb145ec-26a-315a6 at 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 at contesting.com>
> To: towertalk <towertalk at 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 at sbcglobal.net>
> To: towertalk
> <towertalk at 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 at aol.com>
>
> To: towertalk at contesting.com
>
> Subject:
> [TowerTalk] Fwd:
> Antenna near chimney - bad
> idea?
>
> Message-ID:
> <14e45ea4da6-38c1-2b2a1 at 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 at contesting.com>
>
> Subject: [TowerTalk]
> Antenna
> near
>
> chimney - bad idea?
>
> From: John
> Keating
> <john.keating at 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 at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk
> mailing
> list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> ------------------------------
>
> End of TowerTalk Digest, Vol 151, Issue 2
> *****************************************
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