[AT] Hi-Lift Jacks

Andy Glines andyglines at hotmail.com
Fri Jan 7 09:54:18 PST 2005


>Message: 18
>Date: Thu, 6 Jan 2005 17:06:01 EST
>From: ROBBRUT at aol.com
>Subject: Re: [AT] Hi-Lift Jacks
>To: at at lists.antique-tractor.com
>Message-ID: <15.3ba90fd9.2f0f1049 at aol.com>
>Content-Type: text/plain; charset="US-ASCII"
>
>Farmer,
>
>I have owned/used a total of two of the originals and three of the  
>imports,
>and they all suffered from the same design flaw, which is that the
>small-diameter pins have to be of the hardened variety, since they  are 
>cantilevered so
>far from where they go into the lock pins to where they  rub against their
>camming surfaces that a softer pin or a roll pin won't work  (bends), and 
>the
>hardened ones are brittle (so they are prone to  snapping).
>One thing which has worked well for me is to take a die grinder and smooth
>out the rough-cast surfaces that the pins ride on, and also to (in two 
>cases)
>spray a solid film lubricant on the smoothed-out surface.
>The dry film was a product called Emralon 333 I think, and required  baking
>at the highest setting on my oven (while wife was out) after spraying it  
>on,
>so I had to disassemble the jack to do it.
>Both worked fantastically and never broke another pin.
>I still oiled the whole thing liberally, though.
>None of them ever broke, but were lost-strayed-stolen.
>I have the last one I'll ever buy (maybe) sitting unmodified by the shop
>door waiting to be "preened" and put into service.
>
>-Bruce Thompson
Dad replaced the rool pins on ours with old allen wrenches.  The allen 
wrench is made of some pretty good steel.  Strong but not to brittle





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