I have a liftmoore 3200ree truck mounted crane that leaks down on its own when weight is on the hook.
There is what I would assume is a holding valve in the cylinder, would this be suspect over the internal seals of the cylinder leaking?
The serial number is not legible anymore and liftmoore says they have built this crane for years and can’t help without it.
My understanding is that the holding valve needs a pilot signal from the rod end of the cylinder to allow oil to leave the barrel end as a safety. So if the cylinder internal seals were leaking the check in that holding valve would still hold the oil is this correct?
I am thinking I need to identify and source this holding valve.
Thanks for any suggestions
There is what I would assume is a holding valve in the cylinder, would this be suspect over the internal seals of the cylinder leaking?
The serial number is not legible anymore and liftmoore says they have built this crane for years and can’t help without it.
My understanding is that the holding valve needs a pilot signal from the rod end of the cylinder to allow oil to leave the barrel end as a safety. So if the cylinder internal seals were leaking the check in that holding valve would still hold the oil is this correct?
I am thinking I need to identify and source this holding valve.
Thanks for any suggestions