Double brake chamber for Grove AT9120E

The double brake chamber, part number 7009990039, serves as a critical component within the air brake system of the Grove AT9120E mobile crane. This unit converts compressed air pressure into mechanical force to engage the brake mechanisms. By integrating two separate diaphragm sections and spring assemblies, the device allows for both standard service braking and the application of the parking or emergency brake within a single housing. One section operates the service brakes during normal machine travel, while the other section utilizes a heavy-duty spring to engage the parking brake automatically if air pressure is lost.

This specific component is engineered for fitment on the Grove AT9120E all-terrain crane. It ensures the machine maintains effective stopping power and remains securely parked, even when positioned on inclines or supporting heavy loads. The internal design facilitates the transmission of force to the brake push rods, providing consistent response during operation. Regular inspection of the unit is necessary to ensure the integrity of the diaphragms and springs, as any loss of pressure or mechanical failure within the chamber can directly impact the braking performance of the crane.