FORD 2002 F-550 v.2 - Manual (Page 188)

The weight of the vehicle with occupants must never exceed the Front
and Rear GAWR or the GVWR.
The TARC is the weight of the permanently attached equipment that can
be added to the vehicle without violating the vehicle’s Safety Compliance
Certification. This includes the snowplow mounting hardware but does
not include the removable portion of the snowplow assembly.
Tires have their maximum inflation pressure and associated load rating
imprinted on the tire sidewall. This pressure may or may not be the
same as that shown as recommended on the vehicle. Tire inflation
pressure may be sufficient to carry the load of the vehicle as it is
operated. The vehicle operator may have to adjust the tire inflation
pressure to a value different than what is recommended on the vehicle
to accommodate the snowplow and payload. Consult your dealer or
equipment installer for help with proper tire air inflation pressures.
Adding or removing a snowplow may require adjustment to the front
wheel alignment and headlight aim. These specifications can be found in
the vehicle’s Workshop Manual. Proper wheel alignment is necessary for
optimum tire wear and vehicle handling.
Follow the severe duty schedule for engine oil and transmission fluid
change intervals.
Federal and some local regulations require additional exterior lamps for
snowplow-equipped vehicles. Consult your dealer for additional
information.
Installing the snowplow
Removing the blocker beam without installing snowplow
attachment hardware may affect air bag deployment in a crash.
Do not operate the truck unless either the blocker beam or snowplow
attachment hardware is installed on the vehicle.
Read the following instructions before installing a snowplow:
• Front GAWR must not exceed 63% of the GVW. Add ballast weight to
the back of the vehicle, if necessary. Refer to the Safety Compliance
Certification Label to find Front GAWR.
• The Front Axle Accessory Reserve Capacity and the Total Accessory
Reserve Capacity listed on the bottom right of the Safety Compliance
Certification Label will determine whether or not the addition of a
snowplow will overload your vehicle.
Driving
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