Super Single Tire Replacement; Emergency Air-Fill Valves - PREVOST H3-45 2023 Operator's Manual

7-8 Safety Features and Equipment
6. Tighten the nuts progressively in the sequence
shown. Final tightening should be done using a
torque wrench. Dry tightening torque is 450 – 500
lbf- ft (610 – 680 Nm) for steel as well as for
aluminum wheels.
FIGURE 13: TIGHTENING SEQUENCE
FIGURE 14:
NOTE
Periodically check the spare tire inflation
pressure. Tire
maximum pressure specified in the chart.
NOTE
Periodically check that the spare is securely
fastened in its compartment.
CAUTION
Before driving, be sure the flat tire, track, jack
and tools are securely reinstalled in their
respective compartments.
CAUTION
Check that the bumper is securely closed shut
before driving.

SUPER SINGLE TIRE REPLACEMENT

Increase tire pressure to 125 PSI (862 kPa) if you
are using the supplied 365/70 R 22.5 spare tire to
replace a super single tire on the drive axle.
pressure should be
PA-1652 Operator's Manual H3-45 Coach
In this particular configuration, spare wheel is to
be used for emergencies only and for temporary
use.
Spare tire pressure should be increased to
l
125 PSI.
Do not exceed 80km/h (50 MPH)
l
Repair and re-install original super-single
l
wheel and tire as soon as possible.
While the spare tire is installed, avoid
l
sharp turns, sudden acceleration and
braking.
Before driving, be sure the flat tire, track, jack
and tools are securely reinstalled in their
respective compartments. Check that the
bumper is securely closed shut before driving.

EMERGENCY AIR-FILL VALVES

the
The vehicle is equipped with two air system
emergency fill valves to supplement the air
system when air pressure is low and the engine
cannot be operated. One valve is located inside
the front service compartment. The other valve is
located inside the engine compartment.
Both air system emergency fill valves are fitted
with standard tire valve stems. The air systems
can be filled using any standard external air
supply line. The fill valve located in the engine
compartment supplies air for all systems (brakes,
suspension and accessories). The fill valve
located in the front service compartment supplies
air for accessories only.
Air filled through the two emergency fill valves
will pass through the standard air filtering-
drying system. Do not fill air at any other
location. Do not exceed 120 psi (827 kPa).
WARNING
WARNING
CAUTION