TMI 10-4610-244-13 TM 09476B-13/1 Table 2-1. Operation Preventive Maintenance Checks and Service for Hypochlorination Unit LOCATION NOT FULLY ITEM ITEM TO BE MISSION CAPABLE NO INTERVAL CHECK/SERVICE PROCEDURES IF: 1 Before Cover Inspect for tears, holes 2 Before Camlocks: Inspect gaskets for nicks or deterioration Gaskets are brittle or cracked gaskets 3 Before Ball valves Inspect for free movement of valve lever Valve lever does not move 4 Before Sight assembly Inspect casing for cracks and screws. Cracks 5 Before Lines and fittings` Inspect lines for evidence of deterioration Leaks Inspect fittings for cracks or looseness WARNING Death or severe injury can occur from explosion, fire, or chlorine gas caused by contamination of hypochlorite solution with organic matter, or other chemicals.  Use only clean, dry utensils when handling solution. Do not add solution to any dispensing device containing residue or another substance. 6 Before Reservoir a.   Inspect reservoir and ensure it is com- Contaminants are present pletely clean, dry, and has no foreign matter. b.   Inspect reservoir for dents, cracks, holes Unable to hold 5 gallons of or other damage. Solution without leaking. 7 Before Foot valve Inspect strainer for clogging or damage Strainer cracked, clogged and not cleanable 8 Before Accessory box Inspect for dents, broken latch, broken lid Hinges, or large holes 9 Before Chlorine analysis kit Inspect for cracks or breaks to comparator, Comparator damaged, test broken or missing test vials:  ensure kit vials broken or missing, less contains several reagent tablets (mimimum than 10 reagent tablets 10) 2-6