1) Always check whether the seal of fire extinguisher is complete. Once the fire extinguisher is turned on, even if it does not spew much, it must be charged according to the regulations. After filling, the sealing test should be done and the lead seal should be secured.
(2) The pressure storage dry powder fire extinguisher should check whether the pressure gauge pointer in the green area. If the pointer is in the red area, identify the cause. Refill after repair.
(3) Check the integrity of the anticorrosive coating on visible parts. Those with slight loss should be repaired in time. Those with obvious corrosion should be sent to the professional fire maintenance department for pressure test, and qualified ones should be treated with corrosion prevention.
(4) Check whether visible parts and components of the fire extinguisher are complete and whether they are loose, deformed, rusted or damaged.
(5) Check whether the nozzle moisture-proof plug is in good condition.
(6) Check whether the intermittent ejector (when unloading the cylinder) and the spray gun parts are complete and whether the operating mechanism is flexible.
