What are the four steps of proper portable fire extinguisher use?

Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

The steps follow the PASS sequence: Pull, Aim, Squeeze, Sweep. Pull the pin first to break the tamper seal and allow the extinguisher to discharge. Without removing the pin, the extinguisher won’t operate. Then aim at the base of the fire, not at the flames, so you’re targeting the fuel source and giving yourself the best chance to knock it down. Aiming at the base helps prevent flames from spreading or reigniting. Next, squeeze the handle to release the extinguishing agent, doing so smoothly and steadily to control the discharge. Finally, sweep the nozzle from side to side at the base of the fire, covering the area and pushing the fuel away as you move along. This sweeping motion helps ensure the agent blankets the fire and reduces the chance of a flare-up. If the fire doesn’t begin to recede or grows, retreat and call for help.