Wabco 4640070280 Cab Leveling Valve

Description

The Wabco 4640070280 Leveling Valve, Cab is a critical component in cabin tilt mechanisms, ensuring stable and controlled cabin operation. This valve is designed for use in heavy-duty vehicles and machinery where cabin leveling is essential for operator comfort and safety. It maintains a consistent cabin position, mitigating sway and enhancing overall vehicle stability. Featuring a sphere-lever actuation with a +/- 19° angle, it operates efficiently within a temperature range of -40°C to +80°C and a maximum operating pressure of 11.0 bar. The valve utilizes quick connection ports with a 6mm diameter and mounts using 2x Ø 8.5 mm holes, with a distance between mounting holes of 46.4 mm and an overall length of R 195. This OE-specification valve incorporates a one-way valve for reliable performance and is of the device product category.

Key Features & Benefits

This valve basically controls the hydraulic pressure to the cab tilting mechanism. It manages how smoothly and evenly the cab lifts and lowers. It doesn't make the cab tilt, it just regulates how it tilts. It’s got internal components that measure pressure and adjust accordingly, preventing things from going crooked or jerking around. Think of it as the brain controlling the hydraulics when you need to access things under the cab – for engine work, or maybe some electrical repairs. When you’re raising or lowering the cab, this valve makes sure it’s a controlled movement, and that both sides lift at roughly the same rate. It’s a key component in the whole cab tilting system, working with the hydraulic pump, lines, and the tilting rams themselves.

Symptoms, Risks & Replacements

If this valve starts to fail, you’ll notice if the cab doesn’t lift smoothly, or if one side goes up faster than the other. It can even lead to binding – where the cab gets stuck mid – tilt. Ignoring it can lead to damage to the rams, the tilting mechanism itself, or even put stress on the cab mounts. It acts like a shield, protecting the more expensive components. You can usually find a replacement fairly easily – Fixparts Online has a good selection, as do other suppliers. It's a relatively inexpensive part compared to the damage a bad one can cause, so it's worth addressing when it starts acting up.

Warranty Information

Wabco Cab Leveling Valve (MPN 4640070280) comes with a 1-year warranty.