SmartValve was introduced as a retrofit in 2013 to enhance driver comfort and safety, according to Hadley President Jim Green.
Installed on the drive axle suspension, the SmartValve allows for convenient raising of the tractor frame to assist in raising a trailer whose landing gear are too low or lowering one too low, taking the stress of the operation off of the driver’s back. There is no need to crank the landing gear as often or as far, and fewer trips out of the cab are required for adjustment. With a mechanical valve, if the trailer is too high when coupling, drivers are forced to adjust the landing gear with the weight of the trailer fully resting on the landing gear and suspension.
