[TowerTalk] US Tower gearbox

[Mike Fahmie]

I did some Goggling on the subject of flushing before switching to synthetic oil and, at least in the case of automotive engine oil, all of the references I found said that it wasn't necessary.  They say that synthetic oils are already a mix of mineral and synthetic. Synthetics do tend to loosen debris so perhaps it might be wise to run awhile with the first batch of synthetic then drain and refill if your system has been in service long enough to be dirty.
I found this on Mobil's website;

While Mobil SHC 600 Series are generally compatible with mineral oil based products, a mixture may detract from their performance. Consequently it is recommended that before changing a system to one of Mobil SHC 600 Series products, it should be thoroughly cleaned out and flushed to achieve the maximum performance benefits.-Mike-

 
      From: Bob K6UJ <k6uj at pacbell.net>
 To: towertalk at contesting.com 
 Sent: Monday, September 5, 2016 11:55 AM
 Subject: Re: [TowerTalk] US Tower gearbox
   
John,

I don't know the capacity of your TX455 gearbox but it would not be over 
one quart.
My HDX589 gearbox takes exactly one quart.
As you probably already know it is important to flush the old gear lube 
out with
the synthetic lube you are going to use.  The original lube and the 
synthetic are
not compatible.  I would order two quarts.  That should work fine for 
flush and fill.
Here's a supplier that I have used.
https://www.zoro.com/mobil-mobil-shc-630-circulating-iso-220-1qt-120272/i/G0943074/

Bob
K6UJ


On 9/5/16 10:27 AM, John Holmes wrote:
> I was reading with interest the explanations of the lube needed for US
> Towers. My TX455 has been up for five years now and, while I have lubed the
> grease fittings regularly, I've never changed the oil. I want to do this now
> using SHC630 as K6UJ noted. However, before I order this, how much would you
> recommend I order? Would 2 quarts be enough to both flush the gear assemble
> and refill it? I'd hate to have too little on hand after draining.
> Thanks for your help.
> 73,
>
> John W9ILY
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> 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