Underneath many cabs you’ll find some form of steel spring or pneumatic accumulator installed to damp
the vibrations and thumps as tractors travel over undulating terrain. Here and in the August issue we explain how steel spring and pneumatic systems work … and to what extent electronics are involved
Why is there this hissing noise when you climb in the cab? And what has oil got to do with a steel-spring damping system? We went to ZF, which supplies many brands of cars, tractors and trucks with suspension components, and asked the firm a couple of questions.