TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 COOLANT HEATER MALFUNCTIONS—Continued 0089 00 G3Y 1. Inspect fuel lines between tee valve (1) and heater (2). 2. Are all lines free from kinks, restrictions, or other damage? YES NO G3YN 1. Replace heater fuel lines as required (WP 0708 00) thru (WP 0737 00). 2. Verify no faults found. G4Y 1. Replace coolant heater fuel pump (WP 0723 00). 2. Verify no faults found. 0089 00-10