TECHNICAL INFORMATION
5 - 2
Wheels and Tires
Steel wheels
.......................................... 9 X 22.5
Aluminum forged wheels
..................... 9 X 22.5
Except inner drive axle (steel) ................ 9 X 22.5
Tires
..............................................315/80 R 22.5
Recommended tire inflation pressure
(cold)
Front axle................................. 115 psi (795 kPa)
Drive axle................................... 90 psi (620 kPa)
Tag axle.....................................100 psi (690 psi)
Caution:
These tire pressures are established
in accordance with the maximum allowable load
on each axle. A lower pressure is recommended
if the axle load is less than the above specifica-
tions. Weigh vehicle fully loaded and pressurize
according to tire manufacturer's recommenda-
tions. For non standard tire and wheel specifica-
tions, See Prévost tire pressure tabulation in
"Coach final record".
Belts
Make
Model
Qty
Radiator fan
drive
(trans-
fer)
Gates
AX 73
3
Radiator fan
drive
(fan)
Dayco
Poly
COG
1
A/C system
compressor
Gates
BX 97
2
Alternator
24V, 270 Amp
Detroit Diesel,
Gates, Dayco
Poly-V
12K 72"
1
Alternator
12V, 145 Amp
(optional)
Gates
BX 31
1
Engine
Detroit Diesel DDEC III Series 60:
• 470 HP @ 2100 rpm
• 1450 lbf•ft @ 1200 rpm
• Operating range: 1200 - 2100 rpm
• Diesel four cycle, six cylinders inline, 12.7 liters
• Turbo, air to air charged cooled
• Overhead camshaft, four valve per cylinder
Transmission
Allison six speed automatic World Transmission
B500 or B500R (with optional output retarder)
with electronic control:
Gear
Ratio
1st................................................................3.510
2nd...............................................................1.906
3rd ...............................................................1.429
4th................................................................1.000
5th................................................................0.737
6th................................................................0.639
Reverse .......................................................4.801
Converter.......................................................1.79
Output retarder
...................................... optional
Drive Axle
Ratio:
4.56 : 1
4.89 : 1