My HDX589 gearbox takes one quart. $22 is not a big investment for a
better gearbox lube.
I also noticed a big diff in the heat generated also. Used to get hot
to the touch after raising
and lowering the tower. Now just warm.
Bob
K6UJ
On 1/30/16 8:35 AM, Rich Hallman - N7TR wrote:
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@contesting.com] On Behalf Of Jim
Thomson
Sent: Saturday, January 30, 2016 8:15 AM
To: towertalk@contesting.com
Subject: [TowerTalk] US Tower seized gearbox
Date: Fri, 29 Jan 2016 22:42:49 -0600
From: "Matt" <maflukey@gmail.com>
To: <towertalk@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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