What should be ensured before disengaging the hydraulic oil pipe connectors from the tractor’s attachment or from the tractor’s additional equipment?
- Correct answer: That there is no oil pressure in them.
- To check for leaking.
- That they are properly connected.
- That the connectors are in proper condition.
Why this is the answer
The correct answer in the official bank: That there is no oil pressure in them.
Hydraulic lines that still hold pressure can spray oil at high force, injure skin and eyes, and make the attached implement move suddenly. So before disconnecting, release all pressure, for example by lowering the implement to the ground, stopping the engine and moving the control levers. Checking for leaks or the connectors' condition is useful, but it does not remove the danger of disconnecting under pressure.