Snow and Ice Control
27
For best results always plow with a storm. Do not allow more than
four inches of snow to accumulate before starting plowing opera-
tions. The snowplow works easier and the end results (cleared
driving surfaces) are obtained at lower costs.
Be familiar with roads before plowing. Hazards such as curbs, raised
traffic control bumps, sharp curves, guard rails close to the road, etc.,
need to be fixed in the driver's mind.
Do not exceed 10 mph while plowing. (Under no circumstances
should vehicle speed exceed 10 mph while plowing. This includes
long straight paved roads with guideposts, a slight downgrade, and
no one else on the road.) Under any unusual circumstances or if you
have any question about hazards, SLOW DOWN. If necessary, get
out of the vehicle and investigate what may be in or under the snow.
There is no good excuse for taking chances and putting the vehicle,
the plow, or people at risk. If necessary, do not exceed 5 mph.
When plowing hills the preferred method is to plow uphill first,
using the lowest possible gear, then plow downhill; this is especially true for
steep hills. Maintain a smooth forward motion. On hills or steep grades,
control is the important aspect of the task at hand and there is considerably
more control plowing uphill versus plowing downhill on the first pass. If
there are under-snow icy conditions a sand truck can follow the snowplow to
spread sand. This will provide traction for both vehicles when descending
that same steep road. When snowplowing down the hill, the HMMWV can
have the left front and the left rear tires on the sanded portion of the road
even while plowing down the hill.
CAUTION!
Always drive slowly and cautiously while blade is attached.
Always attach carrying chain for over-the-road travel.
Always lower the blade when the vehicle is left unattended.
Always remember that snowplowing is hazardous.
Always use tire chains on all four wheels when plowing.
30. Pre-operational checks are required for safe operations:
Check that all fasteners, mounting bolts, hydraulic, and electrical connec-
tions are tight. Also check all plugs and seals for leaks and repair as necessary.
Look especially for cracked or damaged hydraulic lines. Replace worn or
defective parts. Check all lights.
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