Control block axle valve function

While driving, mobile cranes are suspended by hydraulic cylinders to ensure driving comfort and safety. The required high hydraulic flow and pressure is directed through the axle valve to the suspension cylinders.

While the mobile crane is being lifted, the wheels must be unloaded (often hovering above the ground) to allow the mobile crane to stand safely and reliably. The axle valve blocks the suspension cylinder from extending so the wheels do not touch the ground.