Red Seal Heavy Equipment Operator (Excavator) Practice Exam

When should the engine of an excavator be turned off during shutdown?

1. Before lowering attachments

2. After securing safety locks

3. After checking surrounding area

4. Before checking fuel levels

The correct answer is: Before lowering attachments

In the context of operating an excavator, shutting down the engine at the appropriate time during the shutdown procedure is crucial for safety and equipment care. The engine should indeed be turned off before lowering attachments. This practice is essential for several reasons. When the engine is running, hydraulic systems are active, which can lead to unintended movements of the attachment. Lowering attachments while the engine is still running could result in accidents or injuries, as the operator may not have complete control over the movements. By ensuring the engine is off first, it guarantees that all hydraulic functions are inactive, allowing the operator to safely control the lowering of any implements or attachments without the risk of unexpected movement. Securing safety locks, checking the surrounding area, and checking fuel levels are important actions to take during the shutdown process, but they should occur after the engine has been turned off to maintain a safe working environment. Overall, following this procedure helps ensure the safety of the operator and any personnel nearby, while also protecting the integrity of the equipment.