Specifications include, but are not limited to: Check that unit is properly hung with the proper manufacturer’s hanger. • Remove the extinguisher from its hanger. • Check the gauge pressure. • Check the condition of the gauge and its compatibility with the extinguisher. • Check the weight of the extinguisher. • Check that the last hydrotest test date is within code requirements. Report findings. • Check the last 6-year maintenance inspection, if applicable. • Check the valve and shell for damage or corrosion. • Remove the hose and inspect it for cracks or splits. • Check the hose threads for signs of wear. • Check the condition of the discharge horn. • Check for obstructions that interfere with accessibility of the extinguisher. • Break the extinguisher seal and remove the locking pin. • Check the valve opening for powder or any foreign matter. • For dry extinguishers, fluff the powder by turning the unit.
