For example, to obtain the 900 rpm slow idle
12. Loosen nut (E) on fast idle stop screw (F).
speed, turn the slow idle stop screw (B) out to get
approximately 865 rpm. Hold screw and tighten
Pull lever against fast idle stop screw. Turn screw
the nut. Then turn the supplementary idle screw
in to decrease engine speed; turn screw out to
(D) in to increase engine speed to 900 rpm. Hold
increase engine speed. Hold screw and tighten
screw and tighten nut.
NOTE: The fast idle stop screw on the injection pump
11. Pull injection pump lever rapidly to fast idle then
serves as the stop when the HP (high power)
decelerate to slow idle. Slow idle must be to
mode is actuated.
NOTE: Increasing slow idle setting a small amount,
13. Stop the engine. Connect the cable to lever.
but no more than the maximum specifications,
may help to reduce surging or hunting. If
14. Do Engine Control Motor and Sensor Adjustment
surging or hunting continues, repair injection
and then the Engine Speed Learning Procedure.
(See procedures in this group.)