TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download

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TM 9-2350-261-20-1 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0120 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED CREWMEMBER PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: f. Check electrical leads and connectors at heater, at heater control box, and at fuel pump. Tape leads if frayed. Replace damaged connectors (WP 0555 00 or WP 0613 00). g. Check heater control box, switches, and light bulb. Tighten or replace bad switches and bulbs (WP 0555 00 or WP 0613 00). h. Start, run, and stop heater (see your -10). During start cycle, check that switches and light work properly. Check for increase in blower speed after ignition. i. During operation, check for unusual noises. Check for differences between high and low heat levels. j. When stopping heater, check for correct purge cycle. Verify that indicator light operates properly. If heater does not operate as specified above, perform troubleshooting (WP 0069 00). 0120 00-141