PREVOST X3-45 COMMUTER User Manual

SECTION 13: WHEELS, HUBS AND TIRES
10
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual | Section 13 revised Jan 2022
7. HUB MOUNTED WHEELS
Wheel surfaces in contact with hubs, nuts or
other wheels should be kept free of all rust,
grease and paint (except for initial “E” coat
protection, applied to stop rusting and to
facilitate wheel removal). The reason for this is
to assure that all faces are clamped together
without buildup of any coating. The threads of
the wheel studs and the wheel nuts should be
clean and undamaged.
NOTE
When painting wheels, make sure to mask all
surfaces identified above.
Using a calibrated torque wrench, tighten wheel
nuts. Do not use power tools or long bars for
tightening. Tighten wheel nuts alternately as
shown in figure 3.
TORQUE: 450-500 lb-ft (610-678 Nm)
NOTE
Tightening should not be done immediately
after prolonged braking or when wheel ends
are hot.
Check wheel nut torque at every 100 miles (160
km) for 500 miles (800 km) after fitting wheels.
Let cool before checking. If any relaxation of the
initial torque has occurred, retighten. Relaxation
of initial torque may occur because of the
“bedding down” of the hub and wheel surfaces.
NOTE
Torque relaxation occurs when wheel ends
are hot but should revert to original setting
when cool. Retightening when hot will produce
a higher torque reading than recommended.
7.1 CARE OF WHEELS
Check for cracks in wheels, especially around
the fixing holes, studs, nuts and washers. If in
doubt, renew.
Do not simply retighten very loose wheel fixings
or wheels that are continually becoming loose.
Find out why they are loose and whether any
damage has been caused.
Use trained personnel and keep records of all
attention to wheels and fixings, including which
parts were renewed and when.

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