46
Driving & Safety
SECTION THREE
TIRE PRESSURE
The motorhome may weigh slightly heavier on one
side . The heaviest wheel position (if applicable) on a
single axle will determine the inflation pressure for all
tires on that axle due to weight transfer that occurs
when cornering . Improperly inflated tires can result
in sudden tire failure (blowout) . Cargo not properly
balanced on the suspension, can result in poor handling,
over-stressed chassis components, overloaded wheel
positions and/or tires .
How the motorhome is loaded will influence tire
inflation pressure and load carried by each axle . This is
why each wheel position must be weighed . When the
actual loaded weight of the motorhome and the weight
on each axle are unknown, follow the recommended tire
inflation pressure(s) listed on the federal certification
label .
Occupant & Cargo Carrying Capacity:
Each motorhome, even of the same model year, floor
plan and length, will weigh different due to options and
accessories . The GVWR limits the weight of the entire
load combination, regardless of the amount of weight
of occupants, cargo, water, propane and tongue weight .
Weighing will determine the GVWR is not exceeded
as this is maximum allowable weight . However,
Occupant & Cargo Carrying Capacity (OCCC) weight
is comprised of variables in occupants, cargo, fresh
water and tongue weight .
While the OCCC is a guide to the maximum allowable
weight in combinations of occupants, cargo, water and
tongue weight, the amount of weight in each of the
categories (occupants, cargo, and water and tongue
weight) can be adjusted so one can offset another or
reduced entirely to gain advantage in GCWR .
While maximum allowable weights are not to be
exceeded, if one chooses to carry less water or no
water, that can allow an increase in payload of cargo
or tongue weight, offsetting one for another and still
under maximum allowable weight of GVWR, GAWR,
GCWR or OCCC .
SCALES
Certified public scales are located in moving and
storage lots, farm supplies with grain elevators, gravel
pits, recycling companies and large commercial truck
stops . To locate a nearby public scale, check the yellow
pages under Scales-Public or Weighers . Expect to pay
a small fee .
NOTE:
When adjusting tire inflation pressure, 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 .
WARNING:
Improperly inflated or overloaded tires can
cause a blowout . An overloaded axle can cause a
component failure of the suspension system . Tire
blowouts or broken suspension components can
lead to loss of vehicle control resulting in property
damage, personal injury or death .
NOTE:
Contact the tire manufacturer for further
information concerning tire inflation pressure and
other tire concerns .
020369b
Summary of Contents for Class A Gas 2020
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