TM 9-2350-277-20-2PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDINGLUBRICATION INSTRUCTIONS — Continued0155 00ITEMNO.INTERVALMAN-HOURITEM TO BECHECKED ORSERVICEDCREWMEMBERPROCEDUREEQUIPMENTNOT READY/AVAILABLEIF:l. Check electrical leads and connectors at heater,at control box and at fuel pump. Tape frayedleads. Replace damaged connectors(WP 0382 00).Heater fails tocycle forpropershutdown.m. Check heater control box, switches and lightbulbs. Tighten or replace bad switches and bulbs(WP 0702 00).n. Start, run and stop heater (see your -10). Duringstart cycle, verify that switches and lights workproperly.o. During operation, check for unusual noises.Check for increase in coolant temperature.p. When stopping heater, check for correct purgecycle. Verify that indicator lights properly. Ifheater does not operate as specified above,perform troubleshooting (WP 0089 00).0155 00-156
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