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 MALFUNCTION 8: (Continued) Fuel injector nozzle defective. PROBABLE CAUSE CORRECTIVE ACTION (1) Bench test injector nozzle (WP 0114, Fuel Injector Nozzle Replace/Repair). (2) Repair or replace defective fuel injector nozzle and holder assembly (WP 0114, Fuel Injector Nozzle Replace/Repair). b. Fuel injector nozzle valve stuck closed or orifice plugged. (3) If defective fuel injector nozzle is found, the fuel injection pump must be tested for damage. Replace defective fuel injection pump (WP 0115, Fuel Injection Pump Assembly Replacement). PROBABLE CAUSE CORRECTIVE ACTION (1) Locate faulty nozzle (as described earlier in this work package). c. Fuel injector nozzle holder spring failed (result of improper installation of nozzle). (2) Repair or replace fuel injector nozzle and holder assembly (WP 0114, Fuel Injector Nozzle Replace/Repair). (1) Locate faulty fuel injector nozzle. d. Fuel leakage at fuel injector nozzle body. (2) Repair or replace fuel injector nozzle and holder assembly (WP 0114, Fuel Injector Nozzle Replace/Repair). MALFUNCTION 9: Fuel injector tube high-pressure fuel leakage. PROBABLE CAUSE CORRECTIVE ACTION (1) Tighten fitting nut. (2) Inspect tubing sleeve. a. Fitting loose, tubing cracked or broken. (3) Replace defective tube (WP 0113, Fuel Injection Tube Replacement). b. Fuel injector tube clamps (loose or missing clamps allow tube vibration resulting in fuel leaks). (1) Tighten loose clamps, replace damaged clamps and install missing clamps (WP 0113, Fuel Injection Tube Replacement). WP 0020 00-11