TM 9-2350-247-20-1PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDINGLUBRICATION INSTRUCTIONS — Continued0128 00ITEMNO.INTERVALMAN-HOURITEM TO BECHECKED ORSERVICEDCREWMEMBERPROCEDUREEQUIPMENTNOT READY/AVAILABLEIF:i. During operation, check for unusual noises.Check for differences between high and lowheat levels.j. When stopping vehicle compartment heater,check for correct purge cycle and that indicatorlight bulb works right. If heater does not operateas specified above, perform troubleshooting(WP 0085 00).0128 00-71
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