December 13, 2016
Source: Bendix Commercial Vehicle Systems

Across North America, it’s getting to be that time of year when temperatures regularly begin to dip below freezing—and when commercial vehicle pneumatic systems need a little extra attention. With more vehicle systems incorporating the use of compressed air for non-braking functions—including automated manual transmissions (AMTs), emissions controls and advanced safety technologies—Bendix Commercial Vehicle Systems LLC offers the following three keys to air system maintenance during the winter months:
1. Worry about the water
“It’s really not the cold itself that brings the most potential for air system trouble—it’s the moisture that’s brought in with it when the compressor draws in air,” said Richard Nagel, Bendix director of marketing and customer solutions, charging group. “If enough moisture makes its way through the air dryer, it creates the potential for condensation within the air tanks—and from there, it can travel downstream, affecting the braking system and other connected technologies.”

If that happens, low temperatures can definitely have a negative impact, freezing the condensed water and increasing the likelihood of component malfunctions in the valves, controls, and solenoids utilized in advanced safety technologies, emissions controls, and automated manual transmissions.

Manually draining the air tanks is a simple and fail-safe step that can help keep the air system moisture-free in winter. Bendix recommends draining the tanks at least every three months for a typical line haul truck, and as frequently as once a month for vehicles with high air demand.
2. Maintain and properly equip your dryer
To prevent moisture freezing in the system, a properly functioning air dryer becomes even more important in cold weather. Unfortunately, winter brings with it several factors that can have a negative impact on a dryer’s capacity for effectively removing moisture from […]