Hyundai r35z-7 Workshop Manual page 106

2. RETURN CIRCUIT
Full flow filter
Bypass relief valve
1.5kgf/cm
All oil returned from each actuator returns to the hydraulic tank through the control valve.
The bypass check valves are provided in the return circuit.
The setting pressure of bypass check valves are 1.5kgf/cm
tank from the left side of control valve through oil cooler.
When oil temperature is low, viscosity becomes higher and flow resistance increases when passing
through the oil cooler. When the oil pressure exceeds 1.5kgf/cm
hydraulic tank, resulting in the oil temperature being raised quickly at an appropriate level.
When the oil cooler is clogged, the oil returns directly to the hydraulic tank through bypass check valve.
The full-flow filter and bypass relief valve are provided in the hydraulic tank.
The oil returned from right and left side of control valve is combined and filtered by the full-flow filter. A
bypass relief valve is provided in the full-flow filter.
When the filter element is clogged, the bypass relief valve opens at 1.5kgf/cm
Oil cooler
Check valve
1.5kgf/cm
2
Main control valve
2
2 (21psi). Usually, oil returns to the hydraulic
2 (21psi), the oil returns directly to the
3-3
Actuators
R35Z73HC02
2 (21psi) differential pressure.