Driving & Safety --- Section 2
The Executive 2005
89
The Federal Certification Label is a guide in knowing the maximum loaded axle weight rating
GAWR, and subsequently the correct tire inflation pressure for that weight. Every recreational vehicle,
even of the same make and model, will vary in actual loaded axle weights because of different options
and personal loads.
While the actual loaded axle weight should be below the GAWR, the motorhome must be weighed
in a loaded condition to determine actual weight. Separately weigh the front axle, rear axle and tag
axle, if equipped. It is possible for a motorhome to be within the GVWR yet overloaded on one axle. It
is even possible for one wheel position to be overloaded, even though the GAWR has not been exceed-
ed. For this reason it will be necessary to weigh each wheel position of the motorhome to give a clear
indication of exactly how the weight of the motorhome is distributed.
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. Load weight must be distributed as evenly as possible.
The following is an explanation of commonly used weight 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, LP-Gas, 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 LP-Gas 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 manufactur-
er 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 pounds.
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