Using Trailer Air Brakes (If Equipped)

causym CAUTION: Avoid possible injury from losing control of tractor equipped with IVT transmission operating on downhill slopes. Tractor wheels may lock and skid on slippery downhill slopes. (See Downhill Operation In Slippery Conditions in Operating Tractor-IVT Transmission section.)

IMPORTANT: Agricultural tractor trailer air brakes are designed only for use with agricultural implements and agricultural trailers. This system is not compatible with trailer air brake systems used by over-the-road vehicles and does not conform with the standards of over-the-road trailer air and electrical systems.

Air brakes are a dual-line system.

Clean connections before attaching air hoses. Lift cover from brake coupler and connect trailer hoses. Attach blue trailer hose, service hose, on to tractor blue coupler. Attach trailer red hose, park hose, to tractor red coupler.

NOTE: Trailer lighting plug may need to be rewired to work with tractor 7-pin connector. All trailer warning lights must be operational.

Attach trailer lighting plug to tractor 7-pin connector.

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.

IMPORTANT: With trailer lines connected, do not drive tractor until operating pressure is reached and service alert light and warning display shut off.

Depress brake pedals to stop tractor-trailer while disengaging the clutch.

RXA0097297

Brake Couplers


A-Couplers

OURX935,0000087 -19-13AUG08-1/2

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.

NOTE: Depressing the clutch to stop tractor equipped with IVT transmission is not necessary. See Stopping And Parking the Tractor in Operating Tractor-IVT Transmission.

Bring tractor-trailer to a complete stop, shift transmission to PARK and for early model tractors, pull up brake valve knob to set trailer air brakes before dismounting tractor or disconnecting lines from couplers. Seal connections with dust caps whenever hoses are disconnected.

OURX935,0000087 -19-13AUG08-2/2