Valve for Raising/Lowering Header (Proportional Valve)

H78503
H78503-UN-11SEP03

A - Valve

Oil at a flow of (52 L/min; 13.7 gpm) reaches valve (A) from the first pump.

Pressure relief valve is set to 21000 kPa (210 bar; 3045 psi).

There are 3 internal valves:

  • Neutral flow valve
  • Raise (solenoid) valve
  • Lower (solenoid) valve

When raising, the neutral flow valve automatically closes.

Entire oil flow returns via the filter in neutral flow or when pressure relief valve is triggered.

When lowering, the entire return flow discharges from the cylinders and goes directly to the tank.

OUO6075,0000813-19-20070716