[AT] [Bulk] Re: Hydraulic bottle jack issues

[Stephen Offiler]

But that spoils the fun of pulling the busted one apart and trying to find
and fix the problem.

SO

On Wed, Jan 21, 2015 at 10:05 PM, Dave Rotigel <rotigel at me.com> wrote:

> Harbor Frieght has 12 ton bottle jacks for sale for $29.99. See:
> http://www.harborfreight.com/automotive-motorcycle/bottle-jacks.html And
> you can get a 20% off coupon on line any time you want!
>         Dave
>
> On Jan 21, 2015, at 9:51 PM, David Trompower wrote:
>
> > ambient temp. is about 65 F.
> > the ideas of 'gunk '  in the system and clogged passages, and  stuck
> check valves  seem  fairly good to pursue, so I will try those.   Thank you
> all!
> > it will be a couple days before I can post a progress report.  but
> meanwhile if other ideas come to mind please let me know.
> >
> > R. David
> >
> >
> >> Date: Wed, 21 Jan 2015 18:11:55 -0600
> >> From: tmehrkam at sbcglobal.net
> >> To: at at lists.antique-tractor.com
> >> Subject: Re: [AT] [Bulk] Re:  Hydraulic bottle jack issues
> >>
> >> How cold is it?
> >>
> >> On 1/21/2015 7:03 AM, Stephen Offiler wrote:
> >>> They all work pretty much the same.  Follow this link to a schematic
> >>> diagram.  Seems that probably your "one-way valve" is gunked up or
> perhaps
> >>> damaged from overtightening or something like that.
> >>>
> >>>
> http://cnx.org/resources/f61c398d96d1af1f33c8bf77415a54ca/graphics5.png
> >>>
> >>> SO
> >>>
> >>>
> >>> On Wed, Jan 21, 2015 at 5:22 AM, Steve W. <swilliams268 at frontier.com>
> wrote:
> >>>
> >>>> David Trompower wrote:
> >>>>> need your thoughts and help with this. My  old Black jack  brand,
> >>>>> hydraulic (bottle) hand jack, 12 ton model,   will  raise the ram,
> >>>>> but not retract the ram.
> >>>>>
> >>>>> 1) Opening the release valve does nothing. 2)  the weight of what I
> >>>>> have raised with the jack  will not  push the ram back down? 3)  I
> >>>>> can stand on it  and it will not retrack. 4)  if I hit  the ram  with
> >>>>> a mallet it will slowly go down, .. an 1/8 of an inch  with each blow
> >>>>> is all. 5)  Left over night with a load on the ram,  will not cause
> >>>>> the ram to be retracted by morning. 6)  I opened the filler port
> >>>>> expecting there is too much oil or excess trapped air.  but neither
> >>>>> came out?
> >>>>>
> >>>>> What is wrong? What  would you  recommend I do to fix this jack? I am
> >>>>> stumped.
> >>>>>
> >>>>>
> >>>>> R. David
> >>>>>
> >>>>>
> >>>> Sounds like the release valve ball is stuck or the passage is
> blocked. I
> >>>> would take it apart and refurbish it.
> >>>>
> >>>> --
> >>>> Steve W.
> >>>> _______________________________________________
> >>>> AT mailing list
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> >>>>
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> >>
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