What items are typically addressed during annual extinguisher maintenance by a professional?

• A. Any repairs.
• B. Seal replacement if needed.
• C. Full mechanical inspection, service tag updated, seal replacement if needed, any repairs, and hydrostatic testing if due.
• D. Cleaning with water.

Answer: (C)

Annual extinguisher maintenance by a professional focuses on a thorough check of the unit’s condition and readiness to operate. A full mechanical inspection is performed to look for damage, corrosion, leaks, clogged outlets, or malfunctioning safety components, and to verify that the pressure gauge and the operating mechanism function correctly. The service tag is updated to reflect the date, findings, and actions taken, which keeps records current and supports compliance. Seals are replaced if they’re damaged or tampered with, ensuring the unit maintains its integrity and tamper evidence. Any repairs identified during the inspection are completed so the extinguisher can perform properly when needed. Hydrostatic testing is done when due to confirm the cylinder’s structural integrity under pressure. Cleaning with water is not part of standard professional maintenance and would not address the critical checks and safety verifications these technicians routinely perform.