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Hydraulic Floor Jack - parts drawing - need help!


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  #1  
Old 11-06-2008, 07:31 PM
Harry Harry is offline
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Default Hydraulic Floor Jack - parts drawing - need help!

Does anyone have a drawing of the parts internals for this thing? The O ring seal went bye-bye on the plunger and in removing the contents, too many parts came out with the oil!

I expected one check ball, but there are two, not to mention the order of their installation. Sears is a lost cause - the jack is too old for them. They were dishing out Taiwanese stuff 30 years ago.
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Old 11-06-2008, 08:52 PM
terry tabb terry tabb is offline
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Default Re: Hydraulic Floor Jack - parts drawing - need help!

hey harry i have one just like yours it quit on me so i did the same thing you got there, mine is now in the junk pale, sorry no help here, i bought me a new one, iv seen to many jacks fell, id buy a new one, there the best jacks but after 20 years you need a new one,it maybe safer too.
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Old 11-06-2008, 11:25 PM
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Default Re: Hydraulic Floor Jack - parts drawing - need help!

I'm careful - I always add extra support while working under the load...
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Old 11-07-2008, 08:54 AM
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Paul Spence Paul Spence is offline
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Harry: Look what I found in the dusty pile of "saved" instructions from years gone by. It was something to do on another, rainy, dismal day in NJ . Hope the scans help.
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Old 11-07-2008, 10:49 AM
Tom Kilgore Tom Kilgore is offline
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Arrow Re: Hydraulic Floor Jack - parts drawing - need help!

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I'm careful - I always add extra support while working under the load...
I hope thats not you under thereregards tom
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Old 11-09-2008, 10:13 AM
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Default Re: Hydraulic Floor Jack - parts drawing - need help!

Mystery solved!

First #2, then #3 and then #4 go into the "fill" hole and then the plug with the centering pin. (The centering pins go into each end of the spring.) In fact, the "real" filler opening might be under the phillips head screw right behind what I marked as fill.

The #1 check ball is the only item under the pump plunger.

Now to find a suitable O-ring for the plunger!



Now, as for the person under the truck, I have no idea who that is.
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Old 11-09-2008, 10:36 AM
terry tabb terry tabb is offline
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Default Re: Hydraulic Floor Jack - parts drawing - need help!

haha, thats funny, im going to have to pull mine back out and check that,thanks, if that was me my dad would be doing this,id look like this lol
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Old 04-04-2009, 08:23 PM
peter s peter s is offline
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Default Re: Hydraulic Floor Jack - parts drawing - need help!

Here is the simple way most jacks work. When the pump under the handle comes up, the suction lifts a small check ball that is sitting on a seat. The fluid is now stored in the piston cavity. When the handle is pushed down the small ball closes on the seat and a larger ball usually above the small ball lifts off it's seat and allows the fluid into the lifting cylinder. this is repeated for each pump stroke. When you turn the release it opens a new passage to allow the fluid to return to the oil tank. The next important part is the pressure relief valve. that is usually a ball or metal point with a short heavy spring on top. This is often adjustable with a screw or allen. This is what sets the lifting pressure. Too little and you will not lift the load, too much and you break the jack. I have many parts in stock for various jacks. Sometimes there is a metal spacer or spring above the check balls to help them set faster. Hope this helped
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Old 04-05-2009, 12:47 AM
Kelly Tytlandsvik Kelly Tytlandsvik is offline
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Default Re: Hydraulic Floor Jack - parts drawing - need help!

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Now, as for the person under the truck, I have no idea who that is.
Could that be Craig Anderson under that truck?

Kelly T
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Old 04-05-2009, 03:43 PM
Tom Kilgore Tom Kilgore is offline
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Arrow Re: Hydraulic Floor Jack - parts drawing - need help!

I wonder if the guy lived thru it??????TOM
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Old 04-06-2009, 12:13 AM
Axtion Jim S Axtion Jim S is offline
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Default Re: Hydraulic Floor Jack - parts drawing - need help!

The props are made of hard wood, no worries. But the fellow is welding next to the fuel tank. Death wish type of guy. You may also notice that the person takin the photo is well back.
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Old 12-15-2009, 10:18 AM
wolf wolf is offline
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Default Re: Hydraulic Floor Jack - parts drawing - need help!

I have a very similer prob .Mine is with a 2 1/5 t. from canadian tire[ser#sf-13035489].I am not sure how the balls ,spring,go back .Have been unable to find this info.HELP
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