What is the first step when engaging the PTO for all types of apparatus?

Setting the parking brake is vital when engaging the Power Take-Off (PTO) in any type of apparatus. This action ensures that the vehicle remains stationary and secure, preventing any unintended movement while the PTO is being engaged. Engaging the PTO typically involves the use of hydraulic systems, which can create considerable force, and is often done with the engine running. If the parking brake is not applied, there's a risk of the vehicle rolling, which could lead to accidents or injuries.

The operation of the PTO generally requires that the apparatus is stable, and having it in a locked position reinforces safety for the operator and any personnel nearby. This procedure helps maintain control over the apparatus while utilizing its powered systems, such as hydraulic or pump operations, which is essential in emergency scenarios.