Maintenance Instructions
Tire Maintenance
Preserving proper inflation pressure is a very important
maintenance practice to ensure safe vehicle operation and long
life for the tires.
Failure to maintain correct inflation pressure may result in
sudden tire destruction, improper vehicle handling, and may
cause rapid and irregular tire wear.
Therefore, inflation
pressures should be checked daily and always before
long-distance trips.
Follow the tire manufacturer's recommended cold inflation
pressure for the tire size, type, load range (ply rating), and axle
loading typical for your operation. (Each steer axle tire load will
equal 1/2 steer axle loading; each drive tire load will be 1/4 the
axle loading, if fitted with four tires.)
Checking Inflation
Always check inflation pressure when tires are cold.
Never
bleed air from hot tires to relieve normal pressure buildup.
Normal increases in pressure during operation will be 10 to
15 psi (69-103 kPa), which is allowable in truck tires. Tires
on the same axle should have the same air pressure as the
corresponding other tire(s) on that axle. Steer tires should be
within a 3 psi (21 kPa) pressure range. All drive tires should be
within a 5 psi (34 kPa) pressure range. Tag or pusher axle tires
on the same axle should be within a 5 psi (34 kPa) pressure
range.
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 allowed 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.
SmartWave
®
Tire Pressure Monitoring System (TPMS)
CAUTION
To prevent property damage, follow specific
instructions to avoid breaking SmartWave
®
tire
sensors when mounting and dismounting a tire. If
tire work is done by a non SmartWave
®
authorized
facility, please let them know that a tire pressure
monitoring system is installed on the vehicle
before they remove a tire from a wheel. Refer
to http://www.smartire.com/support/manuals for
complete owner's manual.
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Summary of Contents for ProStar+
Page 4: ......
Page 24: ...Foreword 12...
Page 38: ...Model Description 26...
Page 74: ...Controls Features Declination Zone Map 62...
Page 98: ...Controls Features Center Dash Panel Wing Panel 86...
Page 118: ...Controls Features 106...
Page 243: ...Maintenance Instructions 231...
Page 286: ...Maintenance Intervals and Specifications 274...
