43
2008 IMPERIAL
DRIVING & SAFETY — 2
Weight scale types and weighing methods
determine the procedure used to calculate proper
tire in
fl
ation pressure and axle loading. Several
types of scales are in use today. A platform scale
will allow the entire motorhome to
fi
t on the
scale to read the
GVW
in one scale recording. A
segmented platform scale is designed to weigh
one axle at a time. A single axle scale weighs
one axle at a time. Some scales read only one
wheel position at a time due to physical size.
Several scale readings may be required to
determine the
GAW
or
GVW
total. Each wheel
position requires weighing, referred to as a six-
point weigh, to accurately determine the correct
tire in
fl
ation pressure.
NOTE:
The most accurate method to determine
proper tire pressure to weigh each wheel
position independently. Weighing the
entire axle will not accurately determine
the actual weight carried by each wheel
position. When weighing the drive axle
dual position, divide the total weight by
two to determine the weight carried by
each tire.
When weighing, the scales and the motorhome
must be level to obtain an accurate scale
reading. Even when an axle is not physically on
the scale, a de
fi
nite lean in the motorhome will
produce inaccurate scale readings.
Weight Label
100179d
