What is the feature of your manual propelling device should you check?

When checking a manual propelling device, you should inspect the condition of the propellers for any signs of damage or wear, as they are crucial for efficient movement. Additionally, ensure that the mechanism for manual propulsion, such as gears or handles, operates smoothly and is free of obstructions. It’s also important to verify that all safety features, such as emergency stops or brakes, are functioning correctly to ensure safe usage. Regular maintenance checks can help prolong the lifespan and reliability of the device.