[TowerTalk] US Tower seized gearbox

[Rich Hallman - N7TR]

I have converted all of my gear boxes on my HDX589 and 689 towers to the Mobile Synthetic SHC 634 gear oil.  This has made a huge difference in how the boxes operate as well as the heat generated when rising and lowering the tower.  Especially the HDX689 which is the older 5000lb version like VE7RF has.

Price is pretty high...but well worth it so far.  I bought a case of 12 to save on costs.

http://www.use-enco.com/CGI/INSRIT?PMAKA=325-6005

73  Rich N7TR


-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim Thomson
Sent: Saturday, January 30, 2016 8:15 AM
To: towertalk at contesting.com
Subject: [TowerTalk] US Tower seized gearbox

Date: Fri, 29 Jan 2016 22:42:49 -0600
From: "Matt" <maflukey at gmail.com>
To: <towertalk at contesting.com>
Subject: [TowerTalk] FW:  FW: US Tower seized gearbox

Thanks Bob - good info.  Agree heat is a pretty good indication...  

Matt

##  it was  pointed out to me that it could also be a seized motor. I have never seen a seized motor, but it might be worth removing the rubber belt, and seeing if the motor is seized.  If it is, then the large diam pulley on the gear box should easily turn by hand.....with no belt. Then just the motor requires replacement. That’s a long shot imo, even with one or both bearings trashed inside the motor, but you never know. 

##  the synthetic oil swap is an excellent idea, I saw that on hub citys website quite  a while back. I didn’t realize the gear box would run a lot cooler with the synthetic installed.  

Jim  VE7RF

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