Do i know more about nigative flow control system? my questions are as
follows:-

1.What is Nigative Flow control system?

2.How does it works?

3. Is the pressure/flow is awailable when Excavator is start but no
any function is working?

4. Is the pressure/flow awailable when excavator is in working
position?

5. How does the propotional solenoid valve is working to control
displacement of a hydraulic pump?

6. From where it gets current?