PREVOST X3-45 COMMUTER User Manual

SECTION 13: WHEELS, HUBS AND TIRES
22
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual | Section 13 revised Jan 2022
11
cap screw Torx M16x1.5x60,
TORQUE= 221 lb-ft (300 Nm)
(use E20 Torx socket)
E20 Torx socket
11. TIRE MAINTENANCE
The most critical factor in tire maintenance is
proper inflation (Figure 39). No tire is impervious
to loss of air pressure. To avoid the hazards of
under inflation, always maintain tires at their
recommended inflation pressure. Improper
inflation decreases tire life.
NOTE
VIP & Converted Bus Shells vehicles are not
at their maximum weight
before their
conversion and tire pressures are adjusted at
lower level than the maximum allowed
appearing on the DOT plate.
Tires pressure
must be re-adjusted once converted.
An under inflated tire builds up heat that can
cause sudden tire destruction, resulting in
improper vehicle handling and possible loss of
vehicle control. At least once a week, before
driving (when tires are cold), check inflation
pressure on all the tires, including the spare tire.
This is especially important in cases when
different drivers operate the vehicle.
WARNING
Failure to maintain correct tire inflation
pressure may result in sudden tire destruction,
improper vehicle handling, and will cause
rapid and irregular tire wear. Inflation pressure
should be checked weekly and always before
long distance trips.
11.1 INFLATION PRESSURE
The condition and pressure of the tires can
greatly affect both useful tire life and road safety.
At regular intervals, verify the tire pressures.
Use an accurate tire pressure gauge when
checking inflation pressures. Never exceed the
maximum inflation pressure specified on each
tire.
NOTE
Inflation pressure should be checked when
tires are cold. Cold tire inflation pressure can
be measured when a vehicle has not been
driven for at least 3 hours or less than 1 mile
(1.6 km). Driving, even for a short distance,
causes tires to heat up and ai
r pressure to
increase. Check inflation pressure on all tires
(including the spare tire) using an accurate tire
gauge.
NOTE
The recommended tire inflation pressures are
given in the applicable documents supplied
with the vehicle. In addition, cold tire inflation
pressures are listed on the Department of
Transport's certification plate, affixed
on the
left side control panel
. For special tire
selection, a “PREVOST
COACH SPECIAL
SPECIFICATION” chart is supplied with the
vehicle and is affixed on the left wall near the
driver’s seat. Remember, tire inflation
pressure must be adjusted according to
vehicle loading -
see table in "Coach Final
Record"
CAUTION
These tire pressures are established in
accordance with the maximum allowable load
on each axle. A
lower pressure is
recommended if the axle load is less than the
above specifica
tions. Weigh vehicle fully
loaded and pressurize according to tire
manufacturer's recommenda
tions. For other
tire and wheel specifications, see Prevost tire
pressure tabulation in "Coach Final Record".

PREVOST X3-45 COMMUTER Specifications

General

Engine	Volvo D13
Transmission	Allison B500
Fuel Type	Diesel
Length	45 ft (13.7 m)
Width	102 in (2.6 m)
Horsepower	500 hp
GVWR	54, 000 lbs
Height	141 in