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W E I G H I N G , L O A D I N G , A N D T O W I N G
T H O R M O T O R C O A C H | M A D E T O F I T
Weighing, Loading, and Towing
Introduction
Proper loading of the vehicle is one of the most important
considerations when traveling in a motorhome. Your motor-
home is designed to carry a certain safe maximum load. This
is the Gross Vehicle Weight Rating, or GVWR. When towing
a trailer or vehicle, the added weight calculates towards the
total weight of your motorhome (Gross Combined Weight, or
GCW). Staying within the weight limits of your motorhome
will help to ensure your motorhome performs and operates
safely for your journeys.
Both the chassis manufacturer and Thor Motor Coach pro-
vide weight ratings and recommendations for loading your
motorhome. Read and follow the information provided by
the chassis manufacturer in the chassis manufacturer’s own-
er’s manual as well as information provided by Thor Motor
Coach in this owner’s manual. Important weight ratings are
listed on labels affixed to your motorhome. Do not remove
these important safety labels. For safe operation,
NEVER
OVERLOAD YOUR MOTORHOME OR TOW A TRAILER
OR VEHICLE THAT IS BEYOND THE SAFE TOWING
WEIGHT RESTRICTIONS OF YOUR TOWING HITCH
AND MOTORHOME.
Important Weight Terminology
Listed on the following pages are several important terms
that you need to become familiar with in order to safely load
and use your motorhome as a towing vehicle. Please consult
your chassis (van) owner’s manual for additional information
provided by the chassis manufacturer.
CURB WEIGHT:
The weight of an unloaded motorhome plus the weight of a
full tank of fuel. Does not include propane, water, passengers,
cargo, or aftermarket add-ons.
UNLOADED VEHICLE WEIGHT (UVW):
The curb weight of the unloaded motorhome plus a full pro-
pane tank.
CARGO WEIGHT:
The total weight of all cargo added to your motorhome,
including food, clothing, camping gear, pots and pans, tools,
water (fresh and waste), propane, and all aftermarket equip-
ment added to the motorhome. Also includes trailer tongue
weight. Keep in mind, carrying unnecessary water quantities
(fresh or waste) adds significantly to the total cargo weight:
1 gallon of water = 8.3 pounds
1 gallon of propane = 4.2 pounds
1 gallon of gasoline = 6 pounds
1 gallon of diesel fuel = 7 pounds
OCCUPANT AND CARGO CARRYING CAPACITY
(OCCC):
The maximum weight of all cargo and occupants that can be
safely carried by the motorhome. The tongue weight of your
towed trailer or vehicle must be included in the total cargo
weight.
DO NOT EXCEED THE OCCC RATING OF YOUR
MOTORHOME.
OCCC is determined by subtracting the UVW of the motor-
home from the GVWR of the chassis, plus the weight of any
carried LP fuel. The OCCC of your motorhome is listed on the
yellow OCCC label, affixed to the forward, right-side entry or
passenger door.
GROSS VEHICLE WEIGHT RATING (GVWR):
The maximum permissible weight of a fully-loaded motor-
home. GVWR is determined by the chassis manufacturer and
takes into consideration the design of the frame, suspension
components, axles, and tires. This rating can be found on the
Incomplete Vehicle Identification Data Label affixed to the
driver’s door jamb.
GROSS VEHICLE WEIGHT (GVW):
The actual measured weight of your loaded vehicle. Gross
Vehicle Weight = Curb Total Cargo Total
Passenger Weight).
THE MEASURED GVW MUST NEV-
ER EXCEED THE GVWR OF THE MOTORHOME.
GROSS COMBINED WEIGHT RATING (GCWR):
The maximum allowable loaded weight of this recreational
vehicle, including the weight of its towed trailer or towed
vehicle. This rating is determined by the chassis manufacturer
and takes into consideration the design of the chassis, suspen-
sion components, tires, engine torque and horsepower, and
drivetrain components.
GROSS COMBINED WEIGHT (GCW):
The actual measured combined weight of your loaded
motorhome plus the weight of your loaded trailer or towed
Do not exceed any applicable motorhome weight
ratings. Doing so could damage your motorhome or
affect handling and braking characteristics.
Your motorhome’s braking system is designed and
rated for operation at the gross vehicle weight rating
(GVWR) listed on the unit’s weight labels, not the gross
combined weight rating (GCWR).
WARNING
WARNING
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