Operating the Tractor Using Pneumatic Trailer Brakes CAUTION: Avoid possible injury from losing control of tractor equipped with AutoPowr transmission operating on downhill slopes. Tractor wheels may lock and skid on slippery downhill slopes. (See DOWNHILL OPERATION IN SLIPPERY CONDITIONS in Operating Tractor—AutoPowr Transmission section.) RXA0097297 —UN—19FEB08 Clean connections before attaching air hoses. Lift cover from brake coupler and connect trailer hoses. Attach trailer lighting plug to tractor 7pin connector. Brake Couplers Start engine and allow air system to reach working pressure.
While air pressure builds, Service Alert indicator light comes on and air pressure warning appears on CommandCenter display. When operating pressure is reached, indicator light and warning display shut off automatically. A—Yellow (Service) B—Red (Park) STOPPING AND PARKING THE TRACTOR in Operating Tractor—AutoPowr Transmission. Clean connections before attaching air hoses. Lift cover from trailer brake coupler and connect trailer hose coupling. Seal connections with dust caps whenever hoses are disconnected. IMPORTANT: Reduce brake wear: Make sure the pressure hoses are connected. Select the same gear for both downhill and uphill driving.
Check the air brake on the trailer regularly for correct functioning. Start engine and allow air system to reach working pressure. While air pressure builds, Service Alert indicator light comes on and air pressure warning appears on CommandCenter display. When operating pressure is reached, indicator light and warning display shut off automatically. A field installation kit is available for older equipment requiring a single line braking system. See your John Deere dealer. IMPORTANT: With trailer lines connected, do not drive tractor until operating pressure is reached and service alert light and warning display shut off. NOTE:
If tractor is equipped with field installed single line braking system kit, trailer brake may be used at speeds up to 25 km/h (15 mph) only. Depress brake pedals to stop tractortrailer while disengaging the clutch. NOTE: Depressing the clutch to stop tractor equipped with AutoPowr transmission is not necessary. See OURX935,0000469 1907AUG081/1 409 122208 PN=91