Can't get the jack down
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Cruiser
Joined: May 2011
Posts: 154
Likes: 8
From: Cape Coral, Fl
Can't get the jack down
A friend that got out of bikes gave me his J&S Jack. It worked great all summer. I put it up on the jack about a month ago, used the locks and took the pressure off the jack. I tried to take it down off the jack to night, but I can't get the jack to lift. The valve is closed, but it won't pump up. Any ideas how I get this Ultra down off the jack?
Cruiser
Joined: Dec 2011
Posts: 203
Likes: 0
From: Mt.Pleasant Pa.
Sledge, If you can check the fluid level on the jack if the level is good than the seal on the valve has gone bad. I'm not familiar with js jack but I had a bottle jack blow a seal and fortunately I just unscrewed the valve and replaced the seal and the jack has been good since.
Last edited by torinoman; Jan 31, 2012 at 12:18 AM.
Road Master
Joined: Apr 2008
Posts: 983
Likes: 4
From: Indiana
It's just a simple bottle jack! Depending on how high you have the lift you should be able to remove the jack and work on it without being under the bike.
Chances are it's just low on oil. There will be a plug somewhere on the side of the jack that you will need to take out to add oil. On all my jacks it is just a rubber plug. Ideally you need to use an oil made specifically for hydraulic jacks but any oil will work in at pinch.
Or you could call J & S JACKS and buy a replacement jack for $35.00 @ 1-866-884-5586 or http://www.jsjacks.com/index.php/acc...ttle-jack.html
Look at the jack in the picture there is a small dimple right behind where the handle goes that could be a stopper are a screw in plug this would be where you add oil. With the jack vertical you would add oil till it just runs out the hole. The hole is not necessarily oriented that same at the picture but it will be on the cylinder part of the jack.
Chances are it's just low on oil. There will be a plug somewhere on the side of the jack that you will need to take out to add oil. On all my jacks it is just a rubber plug. Ideally you need to use an oil made specifically for hydraulic jacks but any oil will work in at pinch.
Or you could call J & S JACKS and buy a replacement jack for $35.00 @ 1-866-884-5586 or http://www.jsjacks.com/index.php/acc...ttle-jack.html
Look at the jack in the picture there is a small dimple right behind where the handle goes that could be a stopper are a screw in plug this would be where you add oil. With the jack vertical you would add oil till it just runs out the hole. The hole is not necessarily oriented that same at the picture but it will be on the cylinder part of the jack.
Last edited by vzts4q; Jan 31, 2012 at 12:22 AM.
Road Captain
Joined: Aug 2009
Posts: 603
Likes: 10
From: Villa Rica, GA
A friend that got out of bikes gave me his J&S Jack. It worked great all summer. I put it up on the jack about a month ago, used the locks and took the pressure off the jack. I tried to take it down off the jack to night, but I can't get the jack to lift. The valve is closed, but it won't pump up. Any ideas how I get this Ultra down off the jack?
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Grand HDF Member
Joined: Dec 2008
Posts: 3,721
Likes: 372
From: Tonopah Az
VZ is correct about putting in oil however I would go to a parts store and get hydraulic oil it's cheap and thinner than motor oil and works better because it's made to hold pressure otherwise why wouldn't they use motor oil in things like your front forks and tractors. just sayin
Last edited by santajim; Jan 31, 2012 at 05:53 AM.
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Cruiser
Joined: Nov 2011
Posts: 129
Likes: 0
From: Norfolk, Va
What I've found to "sometimes" is to open the valve that lowers the jack and pump the handle a few times. I've been told that this kind of bleeds any air out of the cylinder. Close the valve and try it again. Sometimes it helps and sometimes it doesn't. Good luck.
