in ground post lifts
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Milton Shaw
Well-known member
- Joined
- Feb 11, 2011
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The top with arms is attached with 6-12 bolts and then the cylinder is left. The cylinder and the outer tube are sunk in the ground about 7 or so feet with usually just a 1/2" pipe going from it to the control valve. This is the standard air over hydraulic single post cylinder. There are some styles that have a separate hydraulic oil tank and on those you have an air control valve to put pressure on the hydraulic tank and then a separate hydraulic valve to send fluid from tank into the tube cylinder. I had a wrecker to set my hoist in the ground 20 years ago and then tied it of after checking it with a level and back-filled with river sand. I bought mine used and wire brushed the entire cylinder, welded up all the deep pits in the cylinder and then coated the cylinder with an anti rust coating and haven't had any problems for 20+ years.
To get it out of the ground, break up concrete, dig as much as can out and then lift it out with wrecker or hoist depending on what you have available.
To get it out of the ground, break up concrete, dig as much as can out and then lift it out with wrecker or hoist depending on what you have available.
TLR-NUT
Member
Yes. Check Challenger Lifts.
rburke65
Well-known member
And I think Rotary.
Cyberbear
Well-known member
My in-ground lift came out of a tire business and was the newer style with a fiberglass shell to capture leaks and protect the inner ram. I had mine installed so the rack was below floor level when not in use and that was covered by a pair of diamond plate doors for a clear floor.
lynnbilodeau
Well-known member
Pics?
thanx, guys. let me be more specific. i was at work. my bay has a 2 post lift. 1 of the posts doesn't have the 2nd smaller pole. so it can be turned 360deg. i was told that these SHOULD NOT be turned. as turning them either installs or uninstalls the ram. in other words = the ram is set in the tube and then turned to lock it into another part inside the tube. and, i was told, that if the ram iss turned the wrong way, it can actually FLY out of the tube.
i want to see if i am being BS'd. and if not, how it is put together. as this makes no sense to me.
i want to see if i am being BS'd. and if not, how it is put together. as this makes no sense to me.
c39er
Well-known member
On some of the old single post lifts you do rotate the ram a couple ways to be able to remove the ram.
marinusdees
Well-known member
I have a single post. Bought used 26 years age and installed correctly. Still works and doesn't leak. Ask me how I know??? If I were doing it now I'd do it the same, but I would fill it with vegetable oil. Leaks won't pollute. Got advice from an old station maintenance man. I have turned it every which way but loose and it has not come out of the ground yet. i think the ram is a Rotary and the head is a Globe. If this info is critical email [email protected] and I'll go and look.
c39er
Well-known member
My old Rotary single post lift manual tells which way/process to turn the piston ram to remove it.
copojo
New member
hello: While searching for info on my single post rotary hoist I came across this thread. I had one of these hoist in my old shop for 25 years without a problem,I found you just need to maintain them,usually just making sure the oil is at the correct level. Anyways i have a older unit that's been sitting for years I suppose.opened it up and it is still full of oil,no moisture inside so before I put it in the ground or spend 400 dollars on oil I wanted to test it. I strapped it to a pole in my shop and then gave it some air and then stopped it before it went to far and then exhausted the air to bring it back down and there is my problem, it won't go back in. I even put the bucket of my loader on it and put some weight on it,left it all night and still it won't come down. I've attached a couple pics. any suggestions would be appreciated. joe
I bought an old Gulf Station and it had an inground single post lift. However there is no air tank and do not know if it works. The fluid is clean and full in the inground tank. I'm not sure if it is a wayne, globe or joyce. Any ideas on if his is worth keeping? Is a service company in Texas that will service one. Any help would be appreciated.
Attachments
txvwnut
Well-known member
hello: While searching for info on my single post rotary hoist I came across this thread. I had one of these hoist in my old shop for 25 years without a problem,I found you just need to maintain them,usually just making sure the oil is at the correct level. Anyways i have a older unit that's been sitting for years I suppose.opened it up and it is still full of oil,no moisture inside so before I put it in the ground or spend 400 dollars on oil I wanted to test it. I strapped it to a pole in my shop and then gave it some air and then stopped it before it went to far and then exhausted the air to bring it back down and there is my problem, it won't go back in. I even put the bucket of my loader on it and put some weight on it,left it all night and still it won't come down. I've attached a couple pics. any suggestions would be appreciated. joe
http://i1240.photobucket.com/albums/gg496/randal350/20160116_15451
91.jpg
internal safety stop maybe.
txvwnut
Well-known member
If your close to the DFW area J8 Equipment should be able to service it for or turn you onto someone that can.
bobcatdan
Well-known member
The new style are powered by the same electric hydraulic pump units as a standard above ground vs the old style being air over hydraulic. New ones are sealed units to avoid the ground contamination problems of a leaking old style unit. If I ever build a bigger shop and decide on having a hoist, hell or high water I will have a new in ground budgeted into the building.