User's Manual

Aeris Installation, Service and Troubleshooting Manual
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STEMCO LP
300 Industrial Blvd.
Longview, Texas 75602
P.O Box 1989
Longview, Texas 75606-1989
Phones: (800) 527-8492 | (903) 758-9981
FAX: (800) 874-4297 | (903) 232-3508
System Overview
The Aeris tire inflation system is designed to automatically inflate tires that are below the target
pressure setting. The system uses air from the trailer’s compressed air tank. The compressed air
tank pressure setting must be higher than the targeted tire pressure setting. Failure to have the
air tank pressure above the target tire pressure prevents proper operation of the inflation system.
System Features
Tire pressure is continuously monitored and adjusted automatically to the target tire pressure.
Adjustable air pressure regulator is used for setting desired tire pressure target.
An indicator light will illuminate when air is flowing to the tires.
Does not pressurize axle tube (prevent contamination of seals).
Rotary seal air leakage will not enter the wheel end, preventing oil contamination on the hubcap.
Each wheel end has dual venting paths to prevent wheel end pressurization.
Checks tire pressure constantly.
Integrated check valves in the hoses isolate tires from system if a tire is damaged or leaking.
Tire pressure check ports are integrated into each hose, eliminating the need to remove the hose
to check the tire pressure.
An air filter is provided on the inlet air line to prevent particulates from clogging the system.