What is the proper way to secure a backhoe loader when it is left unattended?

Securing a backhoe loader when it is left unattended is crucial for safety and preventing unauthorized use. The correct answer involves a series of actions that collectively ensure the equipment is stable and not susceptible to movement or interference.

Lowering the bucket serves multiple purposes: it not only stabilizes the machine by distributing its weight more evenly but also prevents the bucket from causing damage or injury if accidentally released. Engaging the parking brake locks the machine in place, ensuring that it does not roll or tip over, particularly when on uneven ground. Finally, removing the keys is a vital step in preventing unauthorized access or operation by others, thus protecting both the equipment and the surrounding area.

Though engaging the parking brake is an important part of securing the equipment, it isn't sufficient on its own without the other necessary precautions. Leaving the windows open would expose the interior to potential theft or vandalism, and parking on a slope with the engine running introduces significant safety risks, as it could lead to accidental movement of the machine. Therefore, the comprehensive methodology provided in the correct answer is essential for proper safety practices in handling heavy machinery.