When a backhoe is equipped with a boom swing lockout device, when should it be engaged?

Question: When a backhoe is equipped with a boom swing lockout device, when should it be engaged?

Answer options:

• Only when the backhoe is being transported on a public road. ✅ Before any maintenance or inspection of the boom or attachment is performed.
• During normal digging operations to prevent accidental movement.
• When refuelling the machine to prevent spillage.

Correct answer: Before any maintenance or inspection of the boom or attachment is performed.

Explanation: A boom swing lockout is a safety device designed to prevent unintended movement of the boom. It must be engaged before maintenance or inspection to prevent injury from accidental swing, aligning with lockout/tagout principles in CSA B335 and provincial OHS regulations.