Uneven two post hydraulic ramp

[crossy67]

Hi.

My hydraulic two post ramp has started lifting unevenly. Any one got any ideas why this might be before I start stripping it to investigate? The difference isn't huge, just an 30-50mm.

[Auntieroll]

Some idea of the design of the ramp would be useful!
Is it twin ram or is it a single ram ,cables /pulleys?

[226bhp]

crossy67 said:

The difference isn't huge, just an 30-50mm.

That's huge by anyone's standards.

[crossy67]

Really, 1-2" huge? I will need to make some more enquiries, the ramp is in the UK and I'm not.

[spikey78]

I'm surprised the safety cables haven't stopped the ramp working if it's gone uneven but anyway I would check the lifting nuts-one may be knackered and is now resting on the safety nut. If that's not the case, assuming there's a chain going across the bottom of the ramp linking the main lifting screws-make sure the tension is correct as if it's loose it may have jumped.

[spikey78]

Oh, just read the op again and seen it's hydraulic.. don't know anything about those-sorry!

[spikey78]

I'm surprised the safety cables haven't stopped the ramp working if it's gone uneven but anyway I would check the lifting nuts-one may be knackered and is now resting on the safety nut. If that's not the case, assuming there's a chain going across the bottom of the ramp linking the main lifting screws-make sure the tension is correct as if it's loose it may have jumped.

[crossy67]

Thanks for the help.

[Russwhitehouse]

Some oak and some screws? Only kidding but couldn't resist it.

[northwestrecover]

Hi mate , if its got the ram on the switch/oil tank side it usually that side that goes higher ? if it is then the cable nuts on the other side need adjusting ,they usually slacken off with time and that side lowers .