Exhaust System; Heating And Air Conditioning; Oil Specifications; Engine - PREVOST X3-45 COACH 2018 Operator's Manual

9-10 Technical Information

EXHAUST SYSTEM

One all stainless steel exhaust aftertreatment
system including:
 Catalylic converter to reduce NOx.
 FleetGuard assembly made of a DOC (Diesel
Oxidation Catalyst and a DPF (Diesel
Particulate Filter). Noise, vibration and heat
insulated. This assembly is mounted to the
bus structure and is accessible through an
exterior access door.
 Tail pipe diffuser and rain deviation device.
 Exhaust pipe with Insulation and a flexible
section.
 Exhaust to rear rooftop left hand corner.
 Diesel exhaust fluid (DEF) tank (60 liters) and
injection system.

HEATING AND AIR CONDITIONING

Two air conditioning systems using the same
compressor are available: the large capacity
(central) A/C and
compartment A/C. The large capacity A/C
provides adequate capacity of conditioned and
filtered air for all climatic conditions. Fresh air is
drawn into the system from the left (driver's) side
of the vehicle. Return air is taken from the
middle of the vehicle. The driver's heater and
defogger are controlled separately from the
central unit. An air mixture selector enables air
to be drawn into the system from outside the
vehicle or recirculated.
The optional overhead compartment A/C is used
to cool air delivered from registers in the
passenger overhead compartments.
CENTRAL A/C
Air conditioning
capacity
Refrigerant type
Heating capacity
Air flow, main A/C 2 600 cfm (73,6 m
Air flow, overhead
compartment, opt.
an optional overhead
9 tons
134A
152 000 Btu/h
3
/min)
3
450 cfm (12,7 m /min)
PA1627 X3-45 Operator's Manual
COMPRESSOR (for central A/C)
Number of cylinders
Operating speed
Oil capacity
Approved oil
NOTE
The above oils are suitable for use with
reciprocating compressors using refrigerant
R-134a and with evaporator temperatures
above -40°F (-40°C).

OIL SPECIFICATIONS

ENGINE

For the Volvo D13M engine, we recommend
using SAE 10W-30 "
Volvo Premium Motor Oil VDS-
or other Volvo Approved VDS-4.5 oils.
4.5"
Volvo VDS-4.5 oils exceed API service category
CK-4 oils.

ALLISON TRANSMISSION

Allison Transmission recommends the following
fluids:
Castrol TranSynd™
o
specification equivalent fluid;
TES-389 specification equivalent fluid.
o
DIFFERENTIAL
Multigrade gear oil meeting MIL-PRF-2105E:
85W-140 is recommended for use in the Meritor
drive axle. This lubricant performs well over a
broad temperature range, providing good gear
and bearing protection in a variety of climates. If
temperature drops below 10°F (-12°C), 80W-90
should be used, and below -15°F (-26°C), 75W-
90 should be used. In extreme conditions or for
better performance, full synthetic gear oil should
be used. For vehicles equipped with the ZF A-
132 drive axle, use Chevron Multigear oil
4
500 to 3500 rpm
2.6 U.S. qts (2,5 l)
Bitzer BSE55 (POE)
or TES-295