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 TM 9-2815-220-24
THROTTLE ADJUSTMENTS
0043 00
ADJUSTMENT (Continued)
2. Engine low speed idle adjustment (made with
6
5
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.
8
7
WP 0043 00-2
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