8
Pressure Regulation and Engine Speed Control
The system uses two control systems. One, an air pressure switch and the other, an engine speed
control. This allows for instant response to air demands based on air flow and reduction of load on the
engine and reduces fuel usage. These items are set at the factory and should not require adjustment.
Adjusting the System
If insufficient airflow is developed under high demand conditions, check the engine RPM.
The throttle control is preset for maximum delivery by the system at all airflow demands within
the unit’s
abilities at the factory, but in some instance may require minute adjustment by the user. This is done by
adjusting the linkage on the throttle control to increase or decrease the engine RPM.
The cut out and cut in pressure of the compressor can be adjusted on the pressure switch. Consult your
Airworks dealer before attempting adjustment.
Airflow and system pressure are related. As the cfm requirements increase, the pressure produced
during flow, as with any air system, diminishes. The Twister is designed to efficiently run tools requiring
air at
90 psi (tool manufacturer’s standard psi rating).
If you must set up a system without knowing the demands on the system, you can make adjustments by
using an orifice in the outlet to stimulate tool use. A system testing and adjustment tool is available from
Airworks (ATT001).