Trailer Air Brakes (If Equipped)

RXA0143344-UN-03JUL14

Brake Couplers

A - Yellow

B - Red

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 IVT™/AutoPowr™ Transmission section of this Operator’s Manual).

Dual-line braking system employs yellow (A) and red (B) couplers.

Clean connections before attaching air hoses. Connect trailer line that goes to yellow air brake coupler (control line) first. Lift dust cover from trailer air brake coupler and connect trailer hose coupling. Seal connections with dust covers whenever hoses are disconnected.

Start engine and allow air system to reach working pressure. While air pressure builds, Diagnostic Trouble Code and an accompanying message comes on CommandCenter™ display. When operating pressure is reached, indicator light and warning display shut off automatically.

IMPORTANT: To reduce brake wear, make sure pressure hoses are connected, select same gear for both downhill and uphill driving, and check air brake on trailer regularly for correct functioning.

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

Depress brake pedals to stop tractor-trailer while disengaging clutch pedal. Depressing clutch pedal to stop tractor equipped with IVT™/AutoPowr™ transmission is not necessary (see Stopping and Parking Tractor in Operating IVT™/AutoPowr™ Transmission section).

Trailer air brakes are equipped with an automatic bleed valve which can be checked manually (see Bleed Trailer Air Brakes in As Required Service section of this Operator’s Manual).