Holiday Neptune 2004, Руководство пользователя

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DRIVING & SAFETY --- SECTION 2 • 83
NEPTUNE 2004
2
Improperly inflated tires, or suspension that is incorrectly loaded, can result in
poor fuel economy, poor handling and over-stressed chassis components. Vehicle
loading will influence tire inflation pressure and the load carried by each axle.
This is why each wheel position must be weighed. Motorhome axle configuration
and floor plan styles will require different weighing procedures.
NOTE: When weighing a motorhome, each tire on any axle must
be inflated to the same pressure. The wheel position carrying the
most weight will determine the tire inflation pressure for each
tire of that particular axle.
Scales:
Certified public scales are located in a variety of places such as moving and
storage lots, farm suppliers with grain elevators, gravel pits, recycling companies
and large commercial truck stops.
If you are not aware of a nearby public scale, check the local area telephone
book yellow pages under "scales-public" section or "weighers." A nominal fee will
be charged, but this is money wisely spent.
Weight scale types and weighing methods determine the procedure used to
calculate proper tire inflation pressure and axle loading. There are several types of
scales in use today. A platform scale will allow the entire motorhome to fit on the
scale, which will read the
GVW with only one scale recording required. A
segmented platform scale is designed to weigh only one axle at a time, which may
require two or three scale readings to determine the
GAW or GVW total. A single
axle scale enables one axle at a time. Some scales will read only one wheel
position at a time due their physical size. Several scale readings may be required
to determine the
GAW or GVW total, regardless of scale type. Each wheel
position will require weighing. This is referred to as a six point weigh. This type of
weighing procedure will accurately determine what the correct tire inflation
pressure should be. Depending on the type of scale being used, several different
scale readings may be required.
NOTE: The most accurate method to determine proper tire
pressure is to independently weigh each wheel position.
Weighing the entire axle will not accurately determine the total
weight carried by that wheel position. When calculating the
drive axle dual tire pressure using an independent corner weigh
method, divide the total weight by two to determine the weight
carried by each tire. Each wheel position must be weighed and
recorded.
During weighing, the scales as well as the motorhome must be as level as
possible to obtain an accurate scale reading. Even though an axle or side is not
physically on the scale, a definite lean in the motorhome will produce inaccurate
scale readings.