TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 FUEL SYSTEM ABNORMAL CONDITIONS 0020 00 THIS WORK PACKAGE COVERS: WP 0020 00-1 Troubleshooting Table and Diagnostic Tests INITIAL SETUP: Tools: General mechanic’s tool kit (item 121, WP 0176) Container (minimum 2 gallon/7.5 liter capacity) Personnel Required Track Vehicle Repairer (2) 63H10 Equipment Conditions: Engine installed in vehicle or ground hop. MALFUNCTION 1: Air in system. PROBABLE CAUSE CORRECTIVE ACTION (1) "Purge" fuel system. Turn master and in-tank fuel pump switches to "ON". Operate in-tank fuel pump for 1 or 2 minutes. Simultaneously operate purge pump, completing 4 or 5 strokes after firm handle pressure is noted. CAUTION Do not depress flame heater button. Damage to engine could occur. a. Occurred during fuel filter replacement, engine or power pack installation, or long period shutdown. (2) With in-tank pumps operating, open bleeder valves (on cover of both primary and fuel/ water separator filters) until all fuel (no air) is noted. b. Return fuel restriction. (1) Refer to Malfunction 10 in this work package. c. Damaged fuel hoses (fuel pump to filter, or filter to fuel injection pump). (1) Remove and install new hoses (WP 0084, Fuel/Water Separator Automatic Drain System and Wiring Harness Replacement). MALFUNCTION 2: Water contaminated fuel. PROBABLE CAUSE CORRECTIVE ACTION a. Automatic drain system inoperative. (1) Refer to Malfunction 12 in this work package.