 Craftsman bike Jack
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Joined: Jan 2005
Posts: 6,681 Likes: 1
Bar Shake
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OP
Bar Shake
Joined: Jan 2005
Posts: 6,681 Likes: 1 |
This jack won't stay up. If I remember right you can bleed the air out of them to make it work. Does anyone remember how to do that? It' been a while since I have used it.Thanks PS
"Catching a yellow jacket in your shirt at seventy miles per hour can double your vocabulary" Author unknown
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Re: Craftsman bike Jack
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Joined: May 2010
Posts: 5,720
Check Pants
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Check Pants
Joined: May 2010
Posts: 5,720 |
The air is bled out our during full hyd cylinder collapse. I suspect an internal blown seal or a stuck detent valve on the pump. There really isn't too much to a Hyd jack. You can probably replace the jack unbelievably cheap. Try Northern Tool or Harbor Freight.
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Re: Craftsman bike Jack
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Joined: Feb 2007
Posts: 23,194 Likes: 56
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,194 Likes: 56 |
Give it a little viagra. The valve is probably shot or dirty, easy to work onn not much to them. If I remember right to bleed them you open the fill point and rapidly pump the handle, may have to do that a couple times.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Craftsman bike Jack
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Joined: Apr 2008
Posts: 148
Adjunct
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Adjunct
Joined: Apr 2008
Posts: 148 |
I have one.
The instructions say to purge air.
Open release valve by turning the jack handle counterclockwise.
Remove oil fill plug.
Rapidly pump jack handle 6 to 8 full strokes to release trapped air.
Be sure oil level is just below the threads in the oil fill plug hole.
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Re: Craftsman bike Jack
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Joined: Jan 2005
Posts: 2,152
Oil Expert
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Oil Expert
Joined: Jan 2005
Posts: 2,152 |
I have another brand that's gotten saggy over the years, I'll have to try this.
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Re: Craftsman bike Jack
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
I replenished the oil in mine and purged the air and it's been great ever since. The oil was on the shelf at the local auto parts store.
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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Re: Craftsman bike Jack
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Joined: May 2010
Posts: 5,720
Check Pants
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Check Pants
Joined: May 2010
Posts: 5,720 |
Quote:
I replenished the oil in mine and purged the air and it's been great ever since. The oil was on the shelf at the local auto parts store.
That's all I have ever had to do, collapse the cylinder, top off the oil. If that doesn't fix it, I buy another appropriate pump jack. $38.50 for the cylinder on my motor puller, just recently.
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Re: Craftsman bike Jack
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Joined: Feb 2007
Posts: 23,194 Likes: 56
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,194 Likes: 56 |
I use ATF in my jacks and lifts.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Craftsman bike Jack
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Joined: May 2010
Posts: 5,720
Check Pants
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Check Pants
Joined: May 2010
Posts: 5,720 |
ATF is high detergent hydraulic oil. Makes sense.
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Re: Craftsman bike Jack
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Joined: Jan 2005
Posts: 4,931 Likes: 1
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 4,931 Likes: 1 |
mine would leak down too. gave it to a buddy cause i dont need it anymore. he swapped out the o-rings and put some oil in it & works good for now
we should do this every weekend!
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Re: Craftsman bike Jack
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Joined: Aug 2007
Posts: 10,721 Likes: 5
Should be Riding
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Should be Riding
Joined: Aug 2007
Posts: 10,721 Likes: 5 |
I have some jack oil, but you probably don't want it
Always remember to be yourself. Unless you suck. Then pretend to be someone else.
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Re: Craftsman bike Jack
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Joined: Feb 2008
Posts: 2,671 Likes: 15
Loquacious
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Loquacious
Joined: Feb 2008
Posts: 2,671 Likes: 15 |
Quote:
I have some jack oil, but you probably don't want it
Oh hell no... 
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Re: Craftsman bike Jack
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Joined: Jan 2005
Posts: 6,681 Likes: 1
Bar Shake
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OP
Bar Shake
Joined: Jan 2005
Posts: 6,681 Likes: 1 |
Quote:
mine would leak down too. gave it to a buddy cause i dont need it anymore. he swapped out the o-rings and put some oil in it & works good for now
I haven't got round to fixing mine. trying to sell it on Craig's list for $25. Let somebody else fix it.  Plus I can't use it on my bird. The pipes are too low.
"Catching a yellow jacket in your shirt at seventy miles per hour can double your vocabulary" Author unknown
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Re: Craftsman bike Jack
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Joined: Jan 2005
Posts: 1,204
Learned Hand
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Learned Hand
Joined: Jan 2005
Posts: 1,204 |
I use Bar Leak jack oil on all my hydraulic jacks. I bleed them from day one then I install Bar Leak. It keeps the seals in good shape and less prone to leaking
1200CC BIG BORE, W/WISECO PISTONS,.250 STROKED CRANK, PORTED/POLISHED HEADS AND LARGER VALVES, CUSTOM WELDED EXHUAST, DUAL 42MM MIKUNI CARBS.
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Re: Craftsman bike Jack
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Joined: Feb 2007
Posts: 23,194 Likes: 56
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,194 Likes: 56 |
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Craftsman bike Jack
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Joined: Jan 2005
Posts: 6,681 Likes: 1
Bar Shake
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OP
Bar Shake
Joined: Jan 2005
Posts: 6,681 Likes: 1 |
Quote:
I use Bar Leak jack oil on all my hydraulic jacks. I bleed them from day one then I install Bar Leak. It keeps the seals in good shape and less prone to leaking
Hi Fred. This is your old jack I am talking about. It worked fine when you gave it to me. I'm giving it to a friend in BA. If it's seals he can probably replace them. Good to hear you are still kicking. 
"Catching a yellow jacket in your shirt at seventy miles per hour can double your vocabulary" Author unknown
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Re: Craftsman bike Jack
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Joined: Jan 2005
Posts: 1,204
Learned Hand
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Learned Hand
Joined: Jan 2005
Posts: 1,204 |
Paul I gave that jack to you a few years back. I'm surprised you still have it. Good to hear from you too.
1200CC BIG BORE, W/WISECO PISTONS,.250 STROKED CRANK, PORTED/POLISHED HEADS AND LARGER VALVES, CUSTOM WELDED EXHUAST, DUAL 42MM MIKUNI CARBS.
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