TM 9-2350-247-20-1PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDINGLUBRICATION INSTRUCTIONS — Continued0128 00ITEMNO.INTERVALMAN-HOURITEM TO BECHECKED ORSERVICEDCREWMEMBERPROCEDUREEQUIPMENTNOT READY/AVAILABLEIF:59Semi-Annual(M548A3)NBC M1A1–19PrecleanerAssemblya. Check NBC M1A1–19 precleaner assembly fornormal operation (blower running and air flow).Notify your supervisor for repair of precleaner.60Semi-Annual(M548A3)M3 Heatera. Check NBC M3 heater for normal operation(heated air flow). Notify your supervisor forrepair of NBC M3 heater.61Semi-Annual(M548A3)Switches andIndicatorsa. Check for and tighten loose electricalconnections and mountings. Replace brokenindicator lights (WP 0264 00). Check indicatorlights for normal operation.62Semi-Annual(M548A3)Hoses andClampsa. Check hoses for cracks and breaks. Replacecracked or broken hoses. check for leaks.Tighten hose clamps. Replace as required(WP 0537 00).0128 00-77
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