ITEM INTERVAL ITEM TO BE PROCEDURES CHECK FOR AND HAVE REPAIRED OR ADJUSTED EQUIPMENT IS NOT READY NO. B    D    A D    W   M    Q   S A INSPECTED AS NECESSARY AVAILABLE IF TM 55-1930-209-14&P-17 Table C-1.  Preventive Maintenance Checks and Services ;or Workboat, Lifesaving, and Firefighting Systems (Continued) B - Before D - Daily Q - Quarterly D - During W - Weekly S - Semiannually A - After M - Monthly A - Annually 1        Halon 1301 a. Visually check for damage, heavy accu- Discharge System mulation of dirt or grease and for nozzles or obstructions to discharge nozzles and manifold manifold assembly.  Notify bargemaster assembly or shift leader of damage or inoperability obstructed. of system. b.     Notify supporting Fire Marshal of require- ment to recharge empty cylinders. c.      Avoid dropping or rough handling.  During transportation or storage, secure cylin- ders firmly to avoid rough handling. d.     Store only in a cool, dry area in an upright position.  Do not expose to temperatures above 120°F (48C). e.     Visually inspect for any signs of corrosion Corrosion or or mechanical damage.  If such indicators mechanical are present, immediately request sup- damage. porting Fire Marshal to conduct an inspection and weight test. f.   Check spare Halon cylinder not attached to system and make sure anti-recoil plug is assembled to valve outlet on top of cylinder. g.     Check extinguisher pressure gauges for Gauges proper operating pressure. inoperable. 1) If pressure gauge is color coded, needle must be in green range. 2) If pressure gauge is not color coded, needle should indicate 370 psi at 70F, 395 at 80, 430 at 90, and 470 at 100.  If pressure loss, adjusted for temperature, is greater than 10 per- cent, replace active cylinder with spare.  Request supporting Fire Mar- shal to check and recharge Halon 1301 cylinder as necessary, and also check the manifold assembly. h. Request supporting Fire Marshal to con- duct semiannual inspection, including weight check of Halon cylinders. C-17