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Hydraulic lift system Hydraulic, mechanical and electrical components of the lift system
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Old 11-20-2020, 06:45 PM   #1
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Default Cutting cables and Lifting Top Permanently

Hi all,

This forum is such a great resource so far, I thought Iíd throw this out there to see if anyone had any ideas/advice.

We recently bought some property in the high desert (outside Joshua Tree in CA) and it came with a 1968 HiLo. The trailer is in very good shape for its age, but unfortunately I can not get the top to lift more than just a few inches. Iíve tried a few of the tips I have read about on here but Iím fairly certain the cables are just too old and rusted to work.

The good news is we donít ever plan on taking it anywhere as itís a perfect guest ďhouseĒ and a place for us to stay while we build our house on the lot. So my question: is there a way to cut all the cables and jack up the top and then place 2x4s to permanently keep it up? If possible, would it require two Jackís on either side? Or more to the point, how the heck would I do this?

Thanks so much for you time in answering I really appreciate it. Itís such a great vintage camper Iíd hate to not be able to use it.
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Old 11-20-2020, 11:56 PM   #2
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I don't think rusted cables would stop the top from lifting, but they COULD break. In the high desert, I doubt they'd be rusted either.

I suspect you have a leaking manual lowering valve, which is simply returning the hydraulic fluid to the reservoir as pressure builds. It could also be dirt in the regular lowering valve, which is keeping it open a bit. You COULD, of course have leaking seals in the system, which would give the same symptoms.

If you want to jack it up, I think you'll need FOUR farm jacks and I think you'll have to start them on the ground, getting the top up high enough to place the jacks between the top and the outriggers. You'll need a length of 2x4 to support each side as you remove and replace the jack. Then, I think the farm jacks will have enough lift to get the top the rest of the way up. You can find farm jacks at Harbor Freight.

I don't think you have to remove the cables to do this either.

What I've told you is how I'd approach this problem and I may have it wrong, since I've never done it. Someone with experience will hopefully come on and correct any mistakes I've made.

- Jack
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