Which action is taken last when setting up the drill motor?

When setting up a drill motor, the last action taken is to attach the air line to the drill motor. This sequence is important to ensure safety and proper functioning. Before connecting the air supply, the assembly should be positioned accurately to avoid any accidents or misalignment while setting up the equipment. After positioning, the speed settings can be adjusted to ensure the drill operates at the desired RPM for the specific task.

Once these preparations are completed, attaching the air line is the final step that allows the drill motor to be powered. This sequence prevents accidental activation of the drill motor while adjustments or positioning are being made, ensuring the readiness and safety of the operator. Following this, testing the drill motor is typically done after attaching the air line to verify that everything is functioning correctly, but it is not the last action in the setup process.