Air Trailer Brakes (If Equipped)

RXA0112899-UN-14JAN11

Brake Couplers

A - Yellow (Dual-line)

B - Red (Dual-line)

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

Dual-line braking system is offered as a factory option and uses couplers (A and B).

A single-line braking system is offered as a field installed option and uses a single coupler.

NOTE: The single-line trailer brake may be used at speeds up to 25 km/h (15.5 mph) only.

Clean connections before attaching air hoses. Lift cover from air trailer brake coupler and connect trailer hose coupling. Seal connections with dust caps whenever hoses are disconnected.

Start engine and allow air system to reach working pressure. While air pressure builds, Service Alert indicator light comes on and low-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.

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

IMPORTANT: Reduce brake wear:

• Make sure that 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.