Page 343 of 496

of the plow. Front end tow-in should be checked and
reset if necessary at the beginning and end of the
snowplow season. This will help prevent uneven tire
wear.
The blade should be lowered whenever the vehicle is
parked.
Maintain and operate your vehicle and snowplow equip-
ment following the recommendations provided by the
specific snowplow manufacturer.
Over the Road Operation With Snowplow
Attached
The blade restricts air flow to the radiator and causes the
engine to operate at higher than normal temperatures.
Therefore, when transporting the plow, angle the blade
completely and position it as low as road or surface
conditions permit. Do not exceed 40 mph (64 km/h). The
operator should always maintain a safe stopping distance
and allow adequate passing clearance.
Methods For Removing Snow
Operating Tips
Under ideal snow plowing conditions, 20 mph (32 km/h)
should be maximum operating speed. The operator
should be familiar with the area and surface to be
cleaned. Reduce speed and use extreme caution when
plowing unfamiliar areas or under poor visibility.
STARTING AND OPERATING 343
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Page 390 of 496

Do not remove the top of the air filter housing to
inspect the filter element on your diesel engine under
normal operating conditions.
The clear plastic housing on the Filter Minder™ allows
you to view the amount of air pressure drop across the
filter element. It consists of a diaphragm and a calibrated
spring sealed inside the plastic housing. As the air cleaner filter becomes clogged and air pressure drop
across the filter element increases, a yellow disc travels
along a graduated scale on the side of the Filter
Minder™.
The yellow disc will always show the greatest restriction
experienced by the filter element. When the disc reaches
the red zone, the filter element may need to be replaced.
There is no other time or mileage interval for changing
the air cleaner filter element.
If the vehicle experiences a sudden loss of engine power
when being driven in heavy snow or rain or when
plowing snow, check the Filter Minder™
•If the Filter Minder™ is showing a plugged filter, the
filter should be visually inspected for snow/ice build
up or extreme water saturation.
•The filter is not damaged, remove all snow/ice, rein-
stall filter and reset the Filter Minder™.
390 MAINTAINING YOUR VEHICLE
Page 391 of 496
A visual inspection of the air cleaner filter element is
never recommended under normal circumstances. A
badly restricted element may appear clean while a soiled
element may be quite effective in filtering particles
without restricting air flow. Rely on the Filter Minder™
to determine when a filter change is necessary.
After a new filter element is inserted, press the rubber
button on the top of the Filter Minder™. This action will
reset the yellow disc to the clean position.
CAUTION!
When using an engine cleaner or a degreaser, be sure
to wrap and tape the Filter Minder™ to protect the
plastic housing from damage and discoloration.
CAUTION!
Many aftermarket performance air filter elements do
not adequately filter the air entering the engine. Use
of such filters can severely damage your engine.
Draining Fuel/Water Separator Filter
MAINTAINING YOUR VEHICLE 391
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