PREVOST X3-45 COMMUTER User Manual

SECTION 04 : EXHAUST AND AFTERTREATMENT
8
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual Section 04 revised March 2021
2.1. MAINTENANCE
Inspect the exhaust system periodically for
restrictions and leaks. Figure 1 presents the
major components of the exhaust system.
Exhaust leaks are commonly the result of loose
clamp bolts, corroded or punctured pipes. In
addition to excessive noise, a leaking exhaust
system could allow toxic gases to enter the
vehicle. Damage to surrounding components
from hot gases could result as well. Replace
damaged or corroded exhaust components
immediately.
Inspect the exhaust system as follows:
• At vehicle inspection intervals ;
• Whenever a change is noticed in the sound
of the exhaust system ;
• When components close to the exhaust
system get unnaturally dirty ;
• Whenever the exhaust system is damaged.
Replace damaged or corroded exhaust system
components without delay.
When operating the engine in a service garage or
in a closed area, the exhaust must be vented to
the outside. Place the shop vent hose over the
exhaust outlet pipe.
DANGER
Avoid breathing exhaust gases since they
contain carbon monoxide which is odorless
and colorless but harmful. Carbon monoxide is
a dangerous gas that can cause
unconsciousness and can be lethal. If, at any
time you suspect that exhaust fumes are
entering the vehicle, locate and correct the
cause(s) as soon as possible.
WARNING
Diesel engine exhaust and some of its
constituents are known to the State of
California to cause cancer, birth defects and
other reproductive harm.
2.2. FLEXIBLE COUPLING
INSTALLATION
The flexible coupling contains a rigid interior
pipe (Figure 2). To allow appropriate flexibility
once installed, be sure interior pipe is concentric
to flexible part and that the flexible coupling is
straight when installed. This piece of equipment
handles vibration and thermal expansion.
CAUTION
Adequately support the exhaust system line.
The load of the exhaust line must not be
transferred to the turbocharger.
FIGURE 2: FLEXIBLE COUPLING

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