Which tool is used to clean and inspect the purifier bowl?

• A. Large Lock Ring Spanner
• B. Locking Pliers
• C. Torque Wrench
• D. Screwdriver Set

Answer: (A)

Accessing the purifier bowl for cleaning and inspection requires removing the ring that locks the bowl to the purifier housing. That ring has large notches that are specifically matched by a large lock ring spanner. Using this tool provides the correct engagement and leverage to loosen the ring without damaging the notches or the seal, allowing the bowl to be removed for thorough cleaning, inspection of the interior, and checking the gauze and screen.

After cleaning and inspection, reassemble and tighten the lock ring to the manufacturer’s specified torque to ensure a proper seal. Other tools won’t reliably engage the ring: locking pliers can slip or mar the ring, a torque wrench is for controlled tightening during assembly rather than loosening, and a screwdriver set doesn’t fit the lock-ring notches.