PREVOST X3-45 COMMUTER User Manual

SECTION 05: COOLING SYSTEM
24
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual First release Oct 2020
NOTE
It is good practice to scribe the hinge position
on the vehicle structure to use as a reference
point upon reinstallation. This will minimize the
need for hinge adjustment.
8. Slightly lift the door with the lift table to
disengage the lower hinge pin and allow
shroud removal from the vehicle.
NOTE
Do not lose the plastic bushings
installed at
the pivot point of both lower and upper hinges.
9. Reverse removal procedure to reinstall the
fan shroud assembly making sure that;
• The bushings are installed at the hinges
pivot point.
• There is no gap at both hinges between
the bushing and the hinge pivot.
• Main connectors are fully engaged (paint
mark are aligned Figure 27).
FIGURE 27: INSTALLED HINGE & MAIN CONNECTOR
11.4 COOLING PACK (RADIATOR & CAC)
REMOVAL & INSTALLATION
NOTE
Fo
r CAC only replacement, removal of the
entire cooling pack is not necessary. Refer to
paragraph
11.5 in this section for “in vehicle”
CAC replacement instructions.
WARNING
GALVANIC CORROSION PREVENTION
Galvanic corrosion (also called bimetallic
corrosion or contact corrosion) is
an electrochemical process in which
one metal corrodes preferentially to another when
both metals are in electrical contact.
To avoid galvanic corrosion problems, the
aluminum CAC and radiator have been
electrically isolated from the cooling pack
stainless frame.
When replacing the entire cooling pack with a
new unit, make sure before installation that :
- There is no conductivity between the
frame and both CAC and radiator core
using a suitable ohmmeter or continuity
(buzzer) tester.
Note: If using ohmmeter, a minimum of
100 000 (100K) ohms must be observed to be
considered acceptable for installation.

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