1997 Ford F150 Owner Guide 1st Printing - Page 132

Driving If you are driving more then 24 km (15 miles) at temperatures above freezing, angle the plow blade either full left or full right to provide maximum airflow to the radiator. If you are driving less than 24 km (15 miles) at speeds up to 64 km/h (40 mph) in cold weather, you will not need to worry about blade position to provide maximum airflow. Transmission operation while plowing • Shift transfer case to 4L (4WD Low) when plowing in small areas at speeds below 8 km/h (5 mph). • Shift transfer case to 4H (4WD High) when plowing larger areas or light snow at higher speeds. Do not exceed 24 km/h (15 mph). • Do not shift the transmission from a forward gear to R (Reverse) until the engine is at idle and the wheels are stopped. • If the vehicle is stuck, shift the transmission in a steady motion between forward and reverse gears. Do not rock the vehicle for more than a few minutes. The transmission and tires may be damaged or the engine can overheat. 133