LAC - harbor freight hydraulic jack

[thejimrose]

Thanks Ben I'll give that a try. I also found this out there on ye olde web:

http://www.hyjacks.com/H7.HTM

it's really amazing what's out there...


On 4/23/07, Ben Swann <benswann at comcast.net> wrote:
>
>  The instructions, if any have surely been deep-sixed or in stashed  some
> bag-O-receipts.
>
>
>
> Usually when I have bled jacks – and they are mostly the same this is what
> I do.  Probably having an assistant help would be good.
>
>
>
> Hold the bottle spout just above the fill port.  Have assistant slowly
> lift the jack arm which will draw in fluid.  As the fluid level goes down,
> add fluid.  When fully extended,  close the fill port.
>
>
>
> The bleed port is to let out any XS air.  You may want to use this first.
> DO NOT pump jack with this open.  Instead lift jack to highest point with
> the lever.  Springy when you push on it?  If so – you have air.  Now here is
> the somewhat tricky part.  You need to hold the jack with the bleed port up
> in the air – tilt jack and rest in vertical position.
>
>
>
> Now, slightly open the bleeder and press down on the lift arm and expel
> any air – you don't want to let the fluid out any more than necessary.  If
> air comes out, see if this has fixed the problem.  You may need to repeat
> the process.  You may even need to add fluid and sometimes the bleed plug
> can be taken out allowing to fill through it – I think this is better than
> using the fill port, which probably is used only when adding fluid the first
> time.
>
>
>
> Keep expelling air until all you get is fluid and jack get to highest
> travel point by adding fluid – essentially sucking it in through the bleed
> port as applicable.  If this does not work, then there may be a problem with
> the jack – usually a bad O-Ring seal or piston seal.  This should not be
> happening on a new jack.  Probably got a little air in being shipped all the
> way from China – gotta love Harbor Freight, as you sometimes get some pretty
> good stuff for the $, but you takes your chances.
>
>
>
> This all came from me experimenting and I never read any instructions, so
> there may be a better or more proper way.  I'd be happy for someone to set
> us straight if the above is not correct, because I have never seen any
> instructions on how to do this.  Just my daddy showing me how to fill a
> bottle jack when I was really to young to understand what was going on.
>
>
>
> HTH.
>
>
>
> Ben
>
> http://www.gtquattro.com
>
>
>  ------------------------------
>
> *From:* thejimrose [mailto:thejimrose at gmail.com]
> *Sent:* Monday, April 23, 2007 3:35 PM
> *To:* Ben Swann
> *Subject:* Re: lac - harbor freight hydraulic jack
>
>
>
> thanks Ben. I'm hoping it just needs a bleed, it's how to bleed it that
> has me baffled. have you read your instructions? they're pretty bad.
>
> On 4/23/07, *Ben Swann* <benswann at comcast.net> wrote:
>
> I just used mine without doing anything to it – no problems – works
> great.  I wish everything worked like that.
>
> It does sound like yours may need bleeding, but should not have come that
> way.
>
> Ben
>
> [Date: Mon, 23 Apr 2007 10:24:55 -0700
>
> From: thejimrose <thejimrose at gmail.com >
>
> Subject: lac - harbor freight hydraulic jack
>
> To: "Quattro List" <quattro at audifans.com>
>
> Message-ID:< 298352bd0704231024k3f38d3d6rd34b8edafecfdd4d at mail.gmail.com>
>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> anyone have any experience with the HF jacks? i bought their 'rapid pump'
>
> aluminum racing jack:
>
> http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=47246
>
> and can't seem to get it to work properly. it has limited hydraulic
> effect, won't extend to max saddle height [14 vs 17"], etc. i think because
> the instructions to bleed it are very poorly written or translated.
>
> it seems to be pretty well made, and i don't want to deal w/ returning it.
>
> thanks
>
> jim]
>



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