Leaking controls (Cross Co.) on MF236 loader

Gerald J.

Help me with the float function on a controller. I know of 2 types of controllers:

1. You push the handle in either direction and the piston travels to the limit and the pump keeps pushing, the engine lugs and you manually center it and shut off the fluid.

2. Auto kick out (or whatever you call it). When the pressure builds up from a cylinder bottoming out, it automatically kicks back to neutral to shut off the fluid.

So where does float come in and how does the operation of the control differ from either of the 2 examples? Finally, I assume the implement just follows the contour of the terrain while in the float position. So how do you come out of it?

Thanks,

Mark

Float is good for shoving snow and manure on less than perfectly flat surfaces.

On your first example, if the engine lugs a lot at the ends of the cylinder stroke, you need a pressure relief valve (presuming an open center system) to keep from blowing up the pump or some lines.

Gerald J.

Doubt that this is a spool to housing fit (metal to metal). You are dealing with 2000# pressures on low viscosity oil. Just a thousandth or two would be too much.

Did you check the housing when you pulled the spool out. May have machined it for the O ring rather than the spool.

Mark