FORD 2013 F-550 v.3 - Manual (Page 276)

Transmission operation while plowing
WARNING: Do not spin the wheels at over 35 mph (55 km/h).
The tires may fail and injure a passenger or bystander.
Operate the vehicle with the transmission in D (Drive with Overdrive)
and tow/haul off.
• Shift transfer case to 4L (4WD Low) when plowing in small areas at
speeds below 5 mph (8 km/h).
• Shift transfer case to 4H (4WD High) when plowing larger areas or
light snow at higher speeds. Do not exceed 15 mph (24 km/h).
• 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 minute. The transmission and tires may be damaged or the
engine can overheat.
VEHICLE USED AS A STATIONARY POWER SOURCE
Auxiliary equipment called power take-off, or PTO, is often added to the
engine or transmission to operate utility equipment. Examples include a
wheel-lift for tow trucks, cranes, tools for construction or tire service,
and pumping fluids. PTO applications draw auxiliary horsepower from
the powertrain, often while the vehicle is stationary. In this condition,
there is limited cooling air flow through the radiator and around the
vehicle that normally occurs when a vehicle is moving. The aftermarket
PTO system installer, having the most knowledge of the final application,
is responsible for determining whether additional chassis heat protection
or powertrain cooling is required, and alerting the user to the safe and
proper operation.
Ford Super Duty Vehicles are approved for use as a stationary (including
split shaft capability) or mobile power source, within limits and operating
guidelines detailed in the Ford Truck Body Builders Layout Book,
found at www.fleet.ford.com/truckbbas, and through the Ford Truck
Body Builders Advisory Service.
Driving Hints 275
2013 F-250/350/450/550 (f23)
Owners Guide gf, 3rd Printing, December 2012
USA (fus)