I have a 74 land yacht which has a lift on it which appears to be a hydrolic type of lift. Its not the manual crank type or electric. it has a lever which near as I can tell would push the lift tube down to raise the A frame. Problem I have is the gaskets are shot, so it does not lift anymore. Can this be rebuilt or do you just unbolt the whole thing and replace it with a new jack? who sells the jacks if that is the case? Thanks,Barry
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I have never seen a hydraulic jack. However any good rv shop would be able to sell you an electric jack to replace it. I had to put a new one on my 71 unit a few years back. Cost was about $265
I haven't seen the hydraulic type, but should be easy to rebuild. I prefer the electric jack because theres less effort required.......I'm basically lazy!
how did you disassemble the jack. I could not find any way to pull it apart. the top cylander looked like it was welded to the shaft. Where do you fill it with jack oil?
how did you disassemble the jack. I could not find any way to pull it apart. the top cylander looked like it was welded to the shaft. Where do you fill it with jack oil?
I took the piston out that the handle pumps. In there is an O ring. Mine has a screw on the side that you can remove to put oil in. I'll see if I can get a picture for you.
OK, is the piston in the cylinder that is on top of the jack? If that's it how do you get it off? is it threaded? It looked like it was welded to the jack column. In cold weather you can use an oil which is lighter. Glad to hear it works well, hope you can advise me on disassembling the unit. Thanks, Barry
OK, is the piston in the cylinder that is on top of the jack? If that's it how do you get it off? is it threaded? It looked like it was welded to the jack column. In cold weather you can use an oil which is lighter. Glad to hear it works well, hope you can advise me on disassembling the unit. Thanks, Barry
Barry if yours looks like mine, undo the bolt holding the handle pump and pull out the piece that goes in and out. Inside that hole is the O ring that I replaced. That's all I can get apart. The rest is one piece.
I know that I can help here, my father had a welding business back from the 40's-70's and we did alot of work on heavy equipment and many times we had to fix these cylinders. Around 68-69 we just started replacing them with other cylinders and send the broke ones to be either junked or repaired because it was cheaper to replace, not only that if you did not do it properly when welding you cooked the oil & ruined the seals.
Actually they can be disassembled but must be done by a hydrolic shop. In those days the hyd cylinders when assembled was welded together because at that time they thought it made them stronger. Any shop that makes or repairs hyd cylinders should be able to fix for a fair cost. If you dont have a place near you that repairs these cylinders look for a place that deals with and repairs dozers, backhoes, etc.
I do know that if you take the bolts off where it mounts to the frame and turn it upside down you should see a place where it allows the hyd cylinder to come out so it can repaired or replaced after the pump part on the handle has been removed.
Have never seen mention or certainly pic of this item before. Been around various RV forums for a long time. Very interesting. Would like to hear more about whether this was a stock (or even Airstream offered option) product.
Apparently they were around from at least '60 til '74.
Inland Andy might know, but OH I forgot, he is banned from participation.
Have never seen mention or certainly pic of this item before. Been around various RV forums for a long time. Very interesting. Would like to hear more about whether this was a stock (or even Airstream offered option) product.
Apparently they were around from at least '60 til '74.
Inland Andy might know, but OH I forgot, he is banned from participation.
Mine came off a 67 that I bought for parts. I've seen 2 others, both were on early 70's Airstreams. I imagine that they were aftermarket items. I even saw a modern one advertised in a parts book a few years ago but can't find it now.
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