Snowplows should be maintained in accordance with the plow manufacturer's instructions.
Keep all snowplow electrical connections and battery terminals clean and free of corrosion.
When plowing snow, to avoid transmission and drivetrain damage, the following precautions should be observed.
Operate with transfer case in 4WD LOW when plowing small or congested areas where speeds are not likely to exceed 15 mph (24 km/h). At higher speeds operate in 4WD HIGH.
Vehicles with automatic transmissions should use 4WD LOW when plowing deep or heavy snow for extended periods of time to avoid transmission overheating.
Do not shift the transmission unless the engine has returned to idle and wheels have stopped. Make a practice of stepping on the brake pedal while shifting the transmission.