Weight Terms; Tire Pressure & Weighing - Beaver Contessa Owner's Manual

Instructions and diagrams are presented on
the following pages. When the total weight and
the weight on each axle is known, the tire load
data chart in this manual will show the correct
cold inflation pressure per tire for each axle.
There are two important factors to consider
when loading the motorhome: total weight and
balance. When loading heavy objects keep them
as low as possible, preferably on the floor or
below in storage compartments. Distribute cargo
weight as evenly as possible.

Weight Terms

Common Weight Terms and Abbreviations:
Gross Vehicle Weight Rating

(GVWR): Maximum permissible weight
of this motorhome. GVWR is equal to or
greater than the sum of UVW plus CCC.
Unloaded Vehicle Weight (UVW):

Weight of this motorhome as built at
factory with full fuel, engine oil and
coolants. UVW does not include cargo,
fresh water, propane, occupants or dealer
installed accessories.
Cargo Carrying Capacity (CCC):

Equal to GVWR minus each of the
following: UVW, full fresh potable
water weight (including water heater),
full propane weight, and SCWR. Tongue
weight of towed vehicle and dealer
installed equipment will reduce CCC.
Gross Combination Weight Rating

(GCWR): The maximum allowable
loaded weight of this motorhome and
any towed trailer or towed vehicle.
Gross Axle Weight Rating (GAWR):

Load-carrying capacity specified by
manufacturer of a single axle system, as
measured at tire ground interfaces.
Sleeping Capacity Weight Rating

(SCWR): The manufacturer's
designated number of sleeping positions
multiplied by 154 lbs.
Tire Pressure & Weighing
A motorhome may weigh slightly heavier on
one side. Tire inflation pressure of the heavier
side tires determine the inflation pressure for
all tire(s) on that axle due to the weight transfer
that occurs when cornering.
Improperly inflated tires or an incorrectly
loaded suspension can result in poor fuel
economy, poor handling and over-stressed
chassis components. How the motorhome is
loaded 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 determines the tire inflation
pressure for each tire of that particular axle.
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Tag Axle Regulator (42' only):
The motorhome tag axle is equipped with an air
pressure regulator. The tag axle regulator requires
adjustment for the tag axle to maintain proper
weight distribution. The adjustable regulator
and gauge are located in the roadside engine
compartment. The regulator controls the amount
of air pressure in the tag axle air bags. Increasing
air pressure in the tag axle air bags will increase
weight carried by the tag axle and decrease
weight carried by the drive axle. Decreasing air
pressure in the tag axle air bags will decrease
weight carried by the tag axle and increase
weight carried by the drive axle.
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