How Hub Reduction Differentials Work

Regular readers would recall that we’ve reported on several tri-drive units operating in high productivity heavy road train applications over the last few years. Truth be told, the site of a tri-drive or “tridem” road train with four to six trailers in tow is indeed an impressive sight. Their daily payloads undoubtedly would have made…

How truck air compressors work

The primary function of a truck air compressor is to supply compressed air for the truck air suspension and braking system. Typically, this type of compressor is driven by the truck’s engine. The air compressor builds the air pressure for the air suspension, auxiliary components and brake system. In most cases, the air compressor is…

How Cummins PT Fuel pump works

How Cummins PT Fuel System works Little did farm boy, Clessie Cummins, from Indiana, realise his innovative invention of his technological advanced (for the time) PT fuel injection system in the early fifties would revolutionise diesel engine economy, efficiency and reliability. Nor did he ever envisage that it would endure seven decades of production. Cummins…

How a truck DPF works

In trucking terms, the acronym DPF refers to the Diesel Particulate Filter used in the exhaust system of trucks built after 2009. Its purpose is to trap the particulate matter or soot produced from the engine and prevent it (down to 1-micron) from exiting the exhaust pipe. A poorly maintained or blocked PDF will cause…

How to operate Mercedes-Benz MirrorCam

The advancements in digital camera technology are certainly making life easier in countless situations: Today, for instance, video calls are considered the norm for our kids, thanks to digital technology. In medicine, miniature digital cameras play a significant role in providing important information about the human body. Furthermore, the inspection scope I use to view…

Understanding S-Cam Brake Balance

Understanding the importance of S-Cam brake balance in heavy-duty trucks is a fundamental part of truck safety and will go a long way to prevent brake failure. Many operators often see brake components as a costly profit eating commodity, consequently and, sadly, they opt for the lowest priced option when selecting replacement parts. However, regulators…