TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
Page 691 of 870
TM 9-2350-247-20-1 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0128 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED CREWMEMBER PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: e. Check electrical leads and connectors at engine coolant heater, heater control box, and fuel pump. Tape frayed leads. Replace damaged connectors (WP 0473 00). f. Check heater control box, switches, and light bulb. Tighten or replace bad switches and bulb (WP 0474 00). g. Start, run, and stop heater (see your -10). During start cycle, check that switches and lights work properly. h. During operation, check for unusual noises. Check for increase in coolant temperature. i. When stopping heater, check for correct purge cycle. Check that indicator light works right. If heater does not operate as specified above, perform troubleshooting (WP 0086 00). 0128 00-95 Change 1