/ cyl with built in counter balance valves #1
- Apr 11, 2006
- western NC
- Ventrac, Steiner
I have a bunch of small cyl off a old boom truck. I am trying to use these cyl's to build a small, (2000lb) crane for my dump trailer. The cyl I want to use for the boom has a built in counterbalance valve. I need the cyl to gravity feed down. I am just wondering if I remove the valve cartridge and plug the hole, will the cyl work as a normal double acting cyl, or will oil bypass internally where the cartridge valve was. This is the only cyl I plan to use with this type of valving and I could use as is, but it requires pressure to allow oil to flow back to tank. Using this cyl as is would mean I would have to power down to get the cyl to lower. For a boom, this is normally a safety feature to prevent the boom from falling in the event of a broken hose, but is unnecessary for my use and could foul me up if my electric hyd pump fails.