PREVOST X3-45 Multiplex User Manual

Section 05: COOLING SYSTEM
PA1562
16
11. CHARGE AIR COOLER LEAKAGE
Spec for CAC acceptable leakage:
“The CAC is considered acceptable if it can hold
30 psi (206 kpa) gauge pressure with less than
5 psi (34.5 kpa) loss in 15 seconds after turning
off the hand valve.”
NOTE
This spec does not apply if there is any
evidence that the leak was caused by a
foreign object impact.
12. COOLING FAN DRIVE MECHANISM
FIGURE 19: COOLING FAN DRIVE MECHANISM
12.1 DRIVE PULLEY AND UNIVERSAL JOINT
SHAFT
To disconnect the universal shaft, proceed as
follow:
WARNING
Set the ignition to the OFF position and
remove the key from the contact switch to
prevent accidental starting of the engine.
1. Unwrap the drive belt from around the pulley
(see paragraph MOUNTING THE DRIVE
BELT).
2. Dismount the drive pulley. Gain access to the
6 mounting bolts from behind the pulley,
through the opening in the cast aluminum
support (Fig. 15).
3. Unscrew and remove the universal joint shaft
mounting bolts (6) at the right angle gearbox.
4. Slowly, move the shaft toward the rear of the
vehicle.
5. Finally, dismount the universal joint shaft
from the drive pulley (6 bolts).
Installation of the universal joint shaft is the
same as removal, but in reverse order.
FIGURE 20: TIGHTENING SPECIFICATION 05123A
12.2 IDLER REPLACEMENT
If an idler is defective, replace as follow:
WARNING
Set the ignition to the OFF position and
remove the key from the contact switch to
prevent accidental starting of the engine.

PREVOST X3-45 Multiplex Specifications

General

Length	45 ft
Width	102 in
Engine	Volvo D13
Horsepower	500 hp
GVWR	54, 000 lbs
Height	146 in
Sleeping Capacity	Varies based on floor plan
Water Capacity	Varies based on floor plan