PREVOST X3-45 COMMUTER User Manual

SECTION 05: COOLING SYSTEM
26
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual First release Oct 2020
6. Set the second heater shut-off valve, located
in the engine compartment below the
turbocharger outlet to CAC pipe, at the
closed position.
FIGURE 29: HEATER SHUT-OFF VALVES POSITION
7. Connect coolant extractor (Figure 30) to the
radiator drain cock and drain the coolant
system as per Draining cooling system in
paragraph 7 of this section.
FIGURE 30: COOLANT DRAIN EXTRACTOR
CONNECTION
DANGER
R
isk of poisoning. Do not drink coolant. Use
proper hand protection when hand
ling. Keep
coolant out of reach of children and animals.
8. Disconnect the upper radiator pipe at the
pipe junction between the radiator and the
engine (Figure 31).
9. Also disconnect the upper CAC pipe at the
mid-pipe junction.
FIGURE 31: RADIATOR & CAC UPPER CONNECTION
10. Disconnect the radiator lower pipe directly at
the radiator outlet (Figure 32).
11. Disconnect the lower CAC pipe (turbo
outlet).
FIGURE 32: RADIATOR & CAC LOWER CONNECTION
12. Proceed to the cooling fan shroud removal
following paragraph 11.3 of this section
(radiator door must be removed).
13. Disconnect the ground connection at the
upper right corner of the cooling assembly
(Figure 33).
FIGURE 33: COOLING ASSEMBLY GROUND

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