How would you release the hydraulic oil pressure before disconnecting the supply piping from the tractor’s attachment or additional equipment?

1. There are specific drainage taps for this purpose. They should be opened for a few seconds.
2. Correct answer: Move the operation lever in all directions when the engine is off.
3. Turn off the engine, wait a few minutes and only then disconnect the piping.
4. Connect the pressure discharge passage between the supply line and the return line.

WhyTo release the pressure, move the control levers in all directions with the engine off.