User Manual

Hydraulic System VARIANT 260/280 TIC
8 var-h 11/04
722-1 Anti-cavitation valve
opening pressure 3.6 bar
722-2 Anti-cavitation valve
opening pressure 3.6 bar
722-3 Anti-cavitation valve
opening pressure 3.6 bar
731-1 Non-return valve
731-2 Non-return valve
731-3 Non-return valve
731-4 Non-return valve
shuts off the pre-pressurizing circuit against the filter circuit.
734-1
734-2
Non-return valves lock-up valve unit
shut off the tailgate cylinders (318), the rotor cut-out clutch (338) and the drive clutch (370).
753-1
753-2
Pressure relief valve
limits the pressure in the rod spaces to 250 bar.
754 Pressure relief valve
maintains the pressure in the tensioning arm circuit at 10 bar.
755 Flow controller
controls the volume flow for opening the tailgate to 50 l/min. The non-return valve does actually not
exist – here it serves merely for better understanding of the circuit diagram.
756 Flow controller
controls the volume flow for closing the tailgate to 18 l/min. The non-return valve does actually not
exist – here it serves merely for better understanding of the circuit diagram.
801-1 Quick release coupling
single-acting control unit. Oil supply for knife support and pick-up.
801-2 Quick release couplings
double-acting control unit Open / close tailgate oil supply.
912 Baling pressure gauge
Y50 Baling pressure build-up solenoid valve
- limits the pressure in the tensioning arm circuit and thus controls the baling pressure.
- is controlled by the electronic box (the desired baling pressure is set by a potentiometer).
- when the power supply fails, the highest baling pressure is reached.
Y54 ROTOCUT knives OUT solenoid valve
Y55 ROTOCUT knives IN solenoid valve