FORD 2013 F-550 v.1 - Manual (Page 270)

Snowplowing with your Air Bag Equipped Vehicle
WARNING: Do not attempt to service, repair, or modify the air
bag supplemental restraint system (SRS) or its fuses. See your
Ford or Lincoln Mercury dealer.
WARNING: Additional equipment such as snowplow equipment
may effect the performance of the air bag sensors increasing the
risk of injury. Please refer to the Body Builders Layout Book for
instructions about the appropriate installation of additional equipment.
WARNING: All occupants of the vehicle, including the driver,
should always properly wear their safety belts, even when an air
bag supplemental restraint system (SRS) is provided.
Your vehicle is equipped with a driver and passenger air bag
supplemental restraint system. The supplemental restrain system is
designed to activate in certain frontal and offset frontal collisions when
the vehicle sustains sufficient longitudinal deceleration.
Careless or high speed driving while plowing snow which results in
sufficient vehicle decelerations can deploy the air bag. Such driving also
increases the risk of accidents.
Never remove or defeat the tripping mechanisms designed into the snow
removal equipment by its manufacturer. Doing so may cause damage to
the vehicle and the snow removal equipment as well as possible air bag
deployment.
Engine temperature while plowing
When driving with a plow, your engine may run at a higher temperature
than normal because the attached snowplow blade will restrict airflow to
the radiator.
If you are driving more than 15 miles (24 kilometers) 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 15 miles (24 kilometers) at speeds up to
45 mph (72 km/h) in cold weather, you will not need to worry about
blade position to provide maximum airflow.
Driving Hints 269
2013 F-250/350/450/550 (f23)
Owners Guide gf, 1st Printing
USA (fus)