CONTROLS - Dash Switches Suspension, Axle, Tag Trailer Air Supply The red octagon knob controls the air supply to the trailer. CAUTION Operating a vehicle with air suspen- sion bags either overinflated or under- inflated may cause damage to drive- line components. If a vehicle must be operated under such conditions, do not exceed 5 mph (8 km/h). Failure to comply may result in equipment dam- age. Trailer, Axle (3rd Axle) Lift 3 Turn switch on to lower tag axle. Suspension, Dump Turn switch on to lift 3rd Trailer Axle. Suspension, Air Retention Trailer, Axle Lift Forward Turn switch on to deflate suspension air bags.
The switch is guarded to protect you from accidentally deflating the suspension. WARNING Suspension, Third Axle Lift Turn switch on to lift Forward Trailer Axle. Do not operate the Air Suspension De- flate Switch (Dump Valve) while driv- ing. Sudden deflation while your vehi- cle is moving can affect handling and control and could lead to an accident. Use this switch only when your vehicle is not moving. Trailer, Axle Lift Rear Turn switch on to raise Third Axle. Turn switch on to lift Rear Trailer Axle. Y53-6047-2HEN (03/18) 101