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 6: (Continued) Fuel injection pump deficiencies. PROBABLE CAUSE CORRECTIVE ACTION (2) Check manual control for full travel or disconnected linkage. Adjust or repair as required (WP 0040, Engine Operating Parameters). f. (Continued) Manual fuel shut-off malfunction (improper control linkage adjustment or internal failure). (3) Remove fuel injection pump shut-off cover and inspect lever operation. If defective, replace fuel injection pump (WP 0115, Fuel Injection Pump Assembly Replacement). (1) Operate engine fuel shut-off (electric and manual separately) six to eight times. This may free fuel control from stuck position. Attempt engine start. g. Fuel control stuck in "No-Fuel" position (result of improper preservative oil during long-term storage). (2) Check fuel-metering operation as follows: PROCEDURE OBSERVATION ANALYSIS Install pressure test gauges: 100 psi gauge in fuel/water separator filter cover bleeder valve opening (WP 0084, Fuel/Water Separator Automatic Drain System and Wiring Harness Replacement). 10 psi gauge in primary filter cover bleeder valve opening (WP 0086). Turn master and in-tank fuel pump switches "ON". 5-7 psi at fuel/water separator filter and at primary fuel filter. In-tank pump(s) operation normal. Below 5 psi at fuel/water separator filter and at primary fuel filter. Screens clogged or pump(s) defective (refer to pertinent vehicle technical manual). PROBABLE CAUSE CORRECTIVE ACTION (3) Remove fuel shut-off cover and inspect fuel control lever (lever is stuck when in extreme right position). Refer to pertinent fuel injection pump technical manual. (4) Manually move lever to the left, counter clockwise, and alternately rotate (both directions gradually) until full travel and complete freeness of lever is obtained. g. (Continued) Fuel control stuck in "no-fuel" position (result of improper preservative oil during long term storage). (5) Reinstall fuel shut-off cover and check engine for normal start. WP 0020 00-7