A pneumatic assembly governs the raising and lowering function of auxiliary axles on heavy-duty vehicles. This component typically includes a valve, necessary fittings, and potentially a switch, all designed to manage the air pressure supplied to the lift axle’s airbags or suspension cylinders. For example, when a truck is lightly loaded, activating the system lifts the auxiliary axle, reducing tire wear and improving maneuverability.
Employing such a system offers several advantages, including decreased rolling resistance, which can lead to fuel savings. It also reduces stress on the road surface when the extra axle is not needed. Historically, manually operated valves were common, but modern systems often incorporate electronic controls for increased precision and ease of use. The proper functioning of this system is critical for maintaining vehicle safety and optimizing operational efficiency.
