Outrigger slowly creeps down
- Thread starter Alan7s
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oldnslo
Super Member
Look at the cap end of the cylinder. Is there any hex shaped caps that don't look like bolt heads? If yes this could be the valve. There could also be a a body in-line mounted close to the cylinder. These could be counterbalance valves or a pilot operated check valve.
IceStationZebra
Gold Member
I found a parts book online and it did not show any counterbalance or PO checks at all, but the hydraulic diagrams were not very good. They would most likely be cartridge valves screwed into a block. ISZ
Soon as we get some temps above freezing, I'll switch the cylinders and see, although I'm almost positive they're OK. Looked fine when taken apart,
and all new seals made no diff at all. So if it uses cartridge valves as ISZ suggested, is that possible next cause, and can those be serviced individually?
Finally getting this fine machine with zero fluid leaks - external that is.
and all new seals made no diff at all. So if it uses cartridge valves as ISZ suggested, is that possible next cause, and can those be serviced individually?
Finally getting this fine machine with zero fluid leaks - external that is.
IceStationZebra
Gold Member
Counterbalance valves have O-rings but I believe the main sealing surface is steel-on-steel. They can also be replaced, just have to match up the cavity. But if there is no CB then you are looking at excessive spool valve leakage.
The other idea you can try is to switch the cylinders side to side (or swap hoses at the control valve) and see if the problem stays with the cylinder or the valve. And remember you have to work the air out of the cylinder.
ISZ
The other idea you can try is to switch the cylinders side to side (or swap hoses at the control valve) and see if the problem stays with the cylinder or the valve. And remember you have to work the air out of the cylinder.
ISZ
On my machine, there is one large block of valves with all the controls on that. A large line comes from the pump to that, and then the small lines
go to the cylinders; nothing in between. However, on this valve block, there are what look like other valves next to the ones worked by the control
handles. Could these be some sort of check valves?
Yes, even better idea to switch the hoses if I can get at them.
oldnslo
Super Member
follow the hoses (if possible) from the cylinder to the valve bank. If there are any valves in these lines there is a good chance that they are the load holding device. Both hoses may connect to the same block.
