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On
The
Road
Air
Pressure
The
most important factor in maximizing the
life
of
your tires is maintaining proper inflation.
Driving on a tire that does not have the correct
inflation pressure for the load
of
the vehicle is
dangerous and may cause premature wear, tire
damage, and/or loss
of
control
of
the vehicle.
A tire that
is
underinflated will build up exces-
sive heat that may go beyond the prescribed
limits
of
endurance
of
the rubber and the radial
cords. This could result in sudden tire failure. A
tire that
is
underinflated could also cause poor
vehicle handling, rapid and/or irregular tire
wear, or an increase in rolling resistance which
results in a decrease in its fuel economy.
Overinflation will reduce the tire's footprint
or
contact patch with the road, thus reducing the
traction, braking capacity, and handling
of
the
vehicle. A tire that
is
overinflated for the load
that it is can'ying will also contribute to a harsh
ride, uneven tire wear, and will be more suscep-
tible to impact damage.
Maintaining correct tire inflation pressure for
each loaded wheel position on your vehicle
is
of
the utmost importance and must be a part
of
regular vehicle maintenance.
Federal law requires that the tire's maximum
load rating be molded into the sidewall
of
the
tire. If you look on your tire's sidewall you'll
see the maximum load allowed for the size tire
and load rating, and the minimum cold air infla-
tion pressure needed to carry that stated maxi-
mum load. Utilizing less air pressure means a
lesser load can be carried by the tire.
The amount
of
air pressure you need
to
use
depends on the weight
of
your fully-loaded vehicle.
So, you cannot detennine your
COiTect
air pressure
unless you know your vehicle's actual weights.
Underinflation
When an underinflated tire
is
run at normal high-
way speeds, it flexes too much and builds up
05-8
heat. This heat damages the inner liner, casing
and outer sidewall
of
the tire.
If
not remedied
quickly, the tire will be iITeparably damaged.
In extreme cases, the sidewall
of
the tire
is
destroyed, both from the excessive heat
it
endured
and due
to
the weight of the vehicle pressing on
the tire casing without the cushioning effect
of
the
COiTect
air pressure, and the crushing/cutting
action
of
the wheel as it rolls on the underinflated
sidewall. According to guidelines put out by the
Rubber Manufacturers Association (RMA), any
tire that has been run at less than
80%
of
recom-
mended air pressure for the load it
is
canying
should be inspected for possible damage.
When one tire in a dual configuration comes out
of
service due to underinflation damage, the
other tire in the dual configuration should be
inspected immediately. If the unserviceable tire
was underinflated, that means the serviceable
tire was carrying more and more
of
the load for
that wheel position. Consequently, it too may
have suffered some casing damage.
Air
Pressure Check
You
should check the air pressure every two
weeks or at least once each month and before any
major trip. Your
RV
tires' air pressure should be
checked evelY
"drive" morning on long trips. On
short trips
of
a day or less driving each way, your
tires should be checked before you leave on your
trip and again before you
stmt your trip home.
Check your tires when they are
"cold" and have
not been driven for more than one mile. The
stated load capacity for a given cold inflation
pressure
is
based on ambient outside tempera-
ture.
If
you must check your tires when they are
warm or hot, do allow for a slight increase in air
pressure and make sure they are within a couple
of
pounds
of
each other on the same axle.
Frequently check tires.
If
a tire picks up a nail or
screw that creates a slow leak and causes some
air pressure loss, you might eventually spot it
visually
if
it
is
a front tire.
If
it
is
an outside rear
- ;:rFLEElWOOD 1
- CONTENTS 3
- Contents 4
- Introduction 10
- LIMITED 13
- ONE-YEAR 13
- WARRANTY 13
- WHAT IS NOT COVERED BY 14
- THIS WARRANTY 14
- ' 15
- Warranty 16
- IMPORTANT 17
- NOTICES 17
- Important 18
- Notices 18
- INFORMATION 19
- '" 20
- "a 21
- Information 22
- Some Definitions First 23
- WARNING 24
- CARRYING 25
- CAPACITY 25
- .1'1 26
- .II NOTE I 27
- Dangers 28
- Overloading 28
- Loading Tips 28
- A WARNING 29
- Pressure 30
- Underinflation 30
- Pressure Check 30
- A CAUTION 31
- 'A 36
- CAUTION 39
- NOTE 1 42
- NOTE I 47
- 88 pounds 48
- What the RV Owner Can Do 50
- Smoke Detector/Alarm 52
- PLUMBING 53
- SYSTEMS 53
- HOLDING 53
- Plumbing 55
- Systems 55
- Holding 55
- This page intentionally 68
- Equipped) 76
- Do not travel 76
- MAINTENANCE 77
- Maintenance 82
- Modify any suggested 82
- STORAGE 85
- WINTERIZATION 86
- Storage 88
- GLOSSARY 91
- Glossary 92
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