Maintenance Instructions
To minimize rim corrosion, it is particularly important to keep
moisture from the inside of tires and proper selection of air
compressor equipment, proper air line routing, and the use of
shop air dryers is strongly recommended to avoid moisture in
the high-pressure air used for tire inflation.
Underinflation
Tires should not be permitted to become underinflated.
Increased flexing due to underinflation causes heat buildup
within the tire components.
This leads to reduced strength,
breakdown of the rubber compounds, and possible separation
of the tire components (such as ply and tread separation and
reduced retreadability).
Underinflation is also the primary cause of blowouts. In addition,
low inflation causes an increase in rolling resistance. This results
in reduced fuel mileage, a loss in tread life, and uneven wear
due to increased tread movement. To determine proper inflation,
refer to the tire inflation range stated on the tire sidewall and the
tire manufacturer’s tire load-pressure charts.
Inspection
Check condition of tires for abnormal wear patterns and proper
inflation pressures. Cut or broken tire casing must be repaired
or replaced.
Tires should be inspected for the following conditions. If any are
present, the tire should be removed and repaired, retreaded, or
scrapped as the condition indicates.
•
Any blister, bump, or raised portion anywhere on the
surface of the tire tread or sidewall (other than a bump
made by a repair). These indicate the start of internal
separation.
•
Any cut that reaches to the belt or ply cords or any cut
that is large enough to grow in size and depth.
•
Any nail or puncturing object.
•
If any stone or object is held by a tread groove and is
starting to drill into the tread base, remove the object.
Proper tire inflation, toe-in adjustment, loads, and road
speeds are important factors governing tire life, steering ease,
maneuverability, fuel economy, and ride quality.
Loads
WARNING
To prevent personal injury and / or death, or
property damage, do not load tires beyond their
rated capacity as this decreases tire life, requiring
more frequent replacement of tires. Overloading
creates an unsafe condition that may result in
sudden air loss from a tire failure resulting in an
accident.
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