TM 55-1930-209-14&P-19 Section II Table 7-2.  Preventive Maintenance Checks and Services for Compressed Air System B - Before D - Daily Q -  Quarterly D - During W - Weekly S -  Semiannually A - After M - Monthly A -  Annually INTERVAL ITEM PROCEDURES EQUIPMENT ITEM TO BE CHECK FOR AND HAVE IS NOT READY/ NO. INSPECTED REPAIRED OR ADJUSTED AVAILABLE IF B   D   A   D  W  M   Q   S   A AS NECESSARY COMPRESSED AIR SYSTEM WARNING Be sure electrical power is OFF before per- forming maintenance or repair on this sys- tem.  Open circuit breakers.  Redtag circuit breakers or motor controller with "WARNING - DO NOT ACTIVATE.  REPAIRS BEING MADE." Observe all safety precau- tions listed at the beginning of this manual. 1 All Components a. Wipe components clean, especially gauges and control panels. b. Check for leaks, paying special attention Any leaks. to joints, valves, fittings, and piping. Report leaks to shift leader or bargemas- ter. c. Check for loose or missing securements Securements or or fasteners.  Tighten or replace as nec- fasteners loose or essary. missing. d. Check for damage, especially to pres- Pressure gauges, sure gauges, filters, and control panels. filters and/or con- Notify shift leader or bargemaster so trol panels dam- repairs can be made. aged. e. Remove rust and corrosion.  Touch-up or paint in accordance with TB 43-0144 as necessary.  Do not paint threads or labels. 2 Receiver Drain receiver by turning drain cock clock- wise (small T-handle) on bottom of tank. When receiver is completely drained, close valve. 7-11