Pull out the trailer air supply valve | |
Activate the air generator | |
Activate the service line | |
Push in the trailer air supply valve |
White | |
Black | |
Yellow | |
Red |
Release the trailer brakes and pull forward slowly then inspect the connection | |
Lock the trailer brakes and pull forward slowly then inspect the connection | |
Pull forward quickly to stress the connection | |
Lock the trailer brakes and pull backward slowly then inspect the connection |