PREVOST X3-45 COMMUTER User Manual

SECTION 16 : SUSPENSION
22
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual First release Oct 2020
8. TROUBLESHOOTING
Condition Cause Correction
Air sp
rings deflate over
time
1. Defective check valve assembly.
2. Defective exhaust valve assembly.
3. Leak in air line and/or air springs.
4. Defective valve cover, rubber O-rings
or gasket.
1. Replace check valve assembly.
2. Replace exhaust valve assembly.
3. Replace air line or air springs.
4. Replace valve cover, O-rings or
gasket.
Air springs raise to full
height and fail to exhaust
air pressure
1. A clogged exhaust screen in height
control valve assembly.
2. A combination clogged exhaust
screen and defective air inlet valve
assembly.
1. Remove and clean screen.
2. Clean exhaust screen and replace
air inlet valve assembly.
Erratic valve action 1. Dirt or foreign matter in the air valve
lever chamber.
2. Defectives valves.
1. Remove valve cover and blow out
dirt. Install cover using new gasket.
2. Overhaul height control valve
assembly
Vehicle body fails to level to
satisfactory ride height
1. Improper height control valve control
arm adjustment
1. Adjust lever as directed.

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