TM 5-4220-231-14&P Table   3-1    Unit  Level   PMCS Schedule (Con't). H-Hourly    M-Monthly   Q-Quarterly     A-Annually ITEM INTERVAL ITEM TO BE PROCEDURE Equipment    is   Not NO H M  Q A INSPECTED Ready/Available if: 13 O Gage, HP Calibrate IAW    TB    9-4220- Expired calibra- 216-35. tion due    date. NOTE Calibrate every 540    days or    whenever inaccuracies are noted. 14 O Chamber Inspect frame for  broken or Damage prevents Reducing Station damaged welds, dents or   other normal    or  safe (CRS) damage. operation. O Inspect for   missing or  loose nuts, bolts, and    fasteners. Check all   interconnecting piping,    fittings, and hoses. O Clean and    preserve CRS. 15 O Regulator, HP Operate regulator through Regulator jams or turning    arc. operates sporadically. 16 O Valves Turn   each valve through a Valve is  jammed, complete open and    close cycle. broken, or  does not perform function. O Clean and    inspect exterior of valve assemblies. Lubricate valve stems. 17 O Gages Calibrate IAW   TB    9-4220- Expired calibra- 216-35. tion due     date. NOTE Calibrate every 540    days or    whenever inaccuracies are noted 3-6 Change 5