When should the parking brake be applied to prevent unintended travel?

Applying the parking brake before picking or placing a load is crucial for safety during telehandler operations. This practice ensures that the machine remains stable and does not move unexpectedly while the operator is focused on lifting or lowering a load. Engaging the parking brake in this scenario minimizes the risk of accidents that could arise from unintended travel, which can lead to dangerous situations for both the operator and those nearby. It's a key procedural step that enhances safety and provides a secure work environment while performing tasks that carry inherent risks associated with lifting heavy items.

The importance of this precaution underscores how critical it is to prioritize safety measures in logistics and construction. The other situations listed involve the parking brake but do not carry the immediate safety implications associated with actual load handling.