Cub 1861 hydraulic control - relief valve built in?
Posted January 14, 2015 - 11:10 AM
My cub 1861 has a hydraulic system with dash lever to raise and lower the mower deck. I'm not that familiar with Cub systems. Does the hydraulic circuit use a relief valve in the switch (the raise lower control itself) or is one located elsewhere in the circuit?
I'm looking at using a spare cub switch (from an 1800 series cub) as a controller for another application and want to know if the relief valve is built in, or if I need to add one in the line.
I know that switches (actually valves?) can be built either way, either with or without a built in relief. For example, I had an old home made splitter with no relief valve and it would stall the gas motor at either end of travel if you didn't let off the control lever. We added a relief/blowoff bypass to the circuit to keep that from happening.
Posted January 14, 2015 - 11:56 AM
I am quite sure that the relief valve is built into the hydrostatic pump.