TM-9-2350-277-20-2 Unit Maintenance Manual Volume 2 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-2 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0155 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED C R E W M E M B E R PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: g. Check heater control box, switches, and light bulb. Tighten or replace bad switches and bulbs (WP 0702 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 0086 00). HEATER CONTROL BOX LIGHT BULB SWITCHES 0155 00-154 Change 3