TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0008 00 0008 00-27 MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 4. FUEL MIXED WITH WATER WHEN DISPENSED Check dump drain valve for proper operation. 1. If dump drain valve operation is defective, remove sump assembly and replace dump drain valves (WP 0267 00). 2. If dump drain valve operation is not defective, disassemble sump valve assembly and inspect internal components (WP 0267 00). 3. If sump valve components are defective, replace components (WP 0267 00). Table 10. Fuel Tank Troubleshooting Procedures (Contd). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. WATER WILL NOT PUMP FROM COMPARTMENTS OR PUMPS SLOWLY 1. Check transfer case power operations. 2. Check discharge valve operation for selected compartment. 3. Check delivery pump operation. If PTO is not operating, refer to WP 0008 00, table 9, malfunction 2. 1. If discharge valve operation is defective, remove and inspect discharge valve internal components (WP 0265 00). 2. If discharge valve internal components are defective, replace components (WP 0265 00). 1. If delivery pump screen and filter separator are not restricted, remove and inspect delivery pump internal components (WP 0461 00). 2. If delivery pump internal components are defective, replace components (WP 0461 00). 2. WATER WILL NOT GRAVITY DRAIN FROM SELECTED COMPARTMENTS Check discharge valve operation for selected compartments. 1. If discharge valve operation is defective, remove and inspect discharge valve internal components (WP 0265 00). 2. If discharge valve internal components are defective, replace (WP 0265 00). 3. WATER TANK COMPARTMENTS CANNOT BE SUCTION FILLED 1. Check transfer case power takeoff operations. 2. Check delivery pump operation. If transfer case PTO is not operating, refer to WP 0008, table 9, malfunction 2. 1. If delivery pump screen and filter separator are not restricted, remove and inspect delivery pump internal components (WP 0461 00). 2. If delivery pump internal components are defective, replace components (WP 0461 00). Table 11. Water Tank Troubleshooting Procedures.