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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 THROTTLE ADJUSTMENTS 0043 00 WP 0043 00-2 ADJUSTMENT (Continued) 2. Engine low speed idle adjustment (made with engine running and warmed up). a. Adjust engine idle to 675-725 rpm by turning idle adjusting screw (5). b. Loosen lock nut (6) on idle adjusting screw (5) and turn screw clockwise to increase idle speed, and counterclockwise to decrease speed. Tighten lock nut (6). 3. Engine high speed idle adjustment (2600-2660 rpm - no load, checked with engine running and warmed up, see WP 0044, Engine Run-In). a. If adjustment is required, stop engine and remove front cooling fan and vane (WP 0054). b. Loosen lock nut (7) on idle adjusting screw (8) and turn screw clockwise to decrease idle speed, and counterclockwise to increase speed (1/4 turn changes engine speed by approximately 25 rpm). Tighten lock nut (7). c. Replace fan and vane, start engine and verify adjustment. Repeat as necessary until proper speed is attained. 5 6 7 8