PREVOST X3-45 COMMUTER User Manual

SECTION 13: WHEELS, HUBS AND TIRES
D DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual | Section 13 revised Jan 2022
7
2. Loosen wheel nuts about one turn (do not
remove the nuts). This is not necessary if
equipped with hydraulic powered gun.
3. Raise the vehicle by its jacking points on the
body. See Section 18, "Body", under heading
"Vehicle Jacking Points";
4. Unscrew wheel hex stud nuts and remove
the wheel;
CAUTION
Always mark position of the wheel on the axle
prior to removal in order to replace wheel at
the same location, thus avoiding a new wheel
balancing.
3.3 SINGLE WHEEL INSTALLATION
1. Mount the wheel over studs, being careful not
to damage stud threads;
2. Screw in the hex stud nuts (refer to Figure 3
for sequence) so that wheel will position itself
concentrically with hub. This is important,
otherwise wheel may be eccentric with hub
and will not run straight. In this initial step,
slightly tighten the nuts to correctly position
the wheel;
3. Tighten stud nuts progressively as shown in
Figure 3. The final tightening should be done
with a torque wrench.
TORQUE : 450-500 lb-ft (610-678 Nm)
CAUTION
Insufficient mounting-
torque can result in
damage to parts. Excessive mounting torque
can cause studs to break and the wheel to
crack in stud hole area.
4. DUAL WHEELS
4.1 OUTER WHEEL REMOVAL
Same as described in "Single Wheel Removal"
procedure described previously.
4.2 INNER WHEEL REMOVAL
1. Remove outer wheel;
2. Remove inner wheel.
4.3 INNER WHEEL INSTALLATION
Mount the wheel over studs, being careful not to
damage stud threads;
4.4 OUTER WHEEL INSTALLATION
With inner and outer wheels installed, tighten the
stud nuts progressively as shown in Figure 3.
The final tightening should be done with a torque
wrench.
TORQUE: 450-500 lb-ft (610-678 Nm)
CAUTION
Insufficient mounting-torque can result in
damage to parts. Excessive mounting torque
can cause studs to break and the wheel to
crack in stud hole area.
NOTE
On dual wheel assemblies, position the
wheels with the tire valves 180º apart in order
to have access to both the inner and outer
valves.
4.5 INSPECTION
1. Loosen a hex stud nut three turns (Figure 4);
2. Retighten the hex stud nut.
TORQUE: 450-500 lb-ft (610-678 Nm)
Repeat for each of the 10 "hex stud nuts"
according to the tightening sequence in figure 3.

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