Air Brake

Pinpointing heavy-duty truck air brake leaks has always been a difficult proposition for technicians. The standard leak detection method involves using a soapy water solution to dab lines and fittings; the theory being that escaping air from the system will cause bubbles to form at leak sites. Problem is, air currents in the shop can make this method wildly inaccurate, as can lines that stretch 30 feet or more.

The TP-9367 Marksman™ II Ultrasonic Diagnostic Tool can help make finding air brake leaks much less challenging. The Marksman II operates on the principle that pressurized leaks produce friction at the leak site as they escape. Trouble is, unless the leak is very large, this friction is in the ultrasonic range, which means it’s inaudible to the human ear. The Marksman II gets around this by converting and amplifying inaudible ultrasonic sound into an audible “natural” sound the ear can easily pick up. The result is quicker and extremely accurate air brake diagnoses.