For illustration purposes only, the inner filter plate is shown partially cut away.
7. Open the ball valve to allow air to flow and pressure to drop.
Engine speed should increase. Close the valve and observe the
pressure to make sure that the adjustment is correct.
Electronic Throttle Control Adjustment
1. Place the manual transmission in neutral or the automatic
transmission in park and fully apply the park brake.
2. Allow the vehicle to run until the engine is at operating
temperature.
3. Operate the air compressor system until the oil is warm.
4. Open the ball valve on the test tool and observe the engine
tachometer.
Make sure that there are no restrictions to air flow. If the
system cannot produce maximum flow from the tank,
there will be no change in RPM when you turn the
adjusting screw.
5. Turn the maximum RPM adjustment screw clockwise to increase
engine speed and counterclockwise to decrease maximum
engine speed. Count the turns in case you have to start over.
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