I have one of the few Scags Magnum Diesel grass cutters.
I have been experiencing a problem that maybe someone might know about .
HST works good, but it wants to pump when I change directions. Pump like the whole tractor bounces. I can relieve the problem by cutting back on the RPM's or pampering the foot Hydralic pedal.
Only happens when I change directions on the cutter. Fluid is where it should be.