TM-10-3610-202-14 Table 4-1.  Organizational Preventive Maintenance Checks and Services Legend W - Weekly Q - Quarterly A-Annually H - Hours M - Monthly S - Semiannually B - Biennially MI - Miles For Readiness Interval Reporting Item Item To Be Equipment is Not No. W M Q S A B H MI Inspected Procedures Ready/Available If: 1 Water Supply Inspect draincock, faucet, Plumbing lined and fittings for damage which could cause leaks.  If Inspection indicates that replacement of plumbing components is necessary, refer to paragraph 4-31. 2 Air Conditioner Air Inspect for cleanliness, Intake Filter damage and proper install- ation as follows: (1) Remove the eight screws attaching the louver to the shelter exterior wall. (2) Remove the louver and gasket. (3) Pull out filter and grills from louver frame. (4) Clean filter by wash- ing in a soap and water solution.  Dry thoroughly and spray with  coater (NSN 4130-00-860-0042). (5) If filler is damaged, replace with new filter. (6) Install filter by inserting filter and grills into louver frame. (7) Position gasket and louver on shelter wall. (8) Secure with eight attaching screws. 3 Fire Extinguisher Inspect nozzle and adapter assembly for security and condition.  Weigh cylinder every six months and re- place if gross weight has decreased by six ounces (17.0 gm) or more.  If Inspection indicates 'that replacement of the fire extinguisher Is necessary, refer to paragraph 4-47. 4-8      Change  1