PREVOST X3-45 Multiplex User Manual

Section 1
Introduction
Maintenance Manual MM-0204 Copyright 2002
Issued 08-02 ArvinMeritor, Inc. Page 1
Section 1Introduction
Application
O Used on Mack engines. Figure 1.1 .
O Swept volume displacement: 37.4 cubic feet per
minute.
O Flange mounted to the engine.
— Coupling driven through the auxiliary shaft.
— Inlet air, oil lubrication and coolant supplied
from the engine.
O Pneumatic pressure signal from the governor
controls compression:
— Integrated pressure relief valve protects the
compressor and engine if discharge or
governor lines become blocked, or if
compressor cannot unload. The valve
prevents the compressor from pumping
more than 250 psi in the event of a blocked
discharge line or other malfunction.
NOTE: This compressor has NO through drive
capabilities for hydraulic power steering pumps.
Description
The Meritor WABCO System Saver 636 twin
cylinder air compressor provides and maintains
air under pressure to operate devices in the air
brake and auxiliary air systems of a vehicle. It
consists of two major subassemblies: Cylinder
head and crankcase. Figure 1.2 .
The cylinder head contains the inlet, discharge
and unloader valving, as well as an integral relief
valve. There are two water ports, marked Port 9,
an air discharge port, marked Port 2, and an inlet
port, marked Port 0, cast into the cylinder head to
accommodate a hose connection. The cylinder
head is mounted on the crankcase.
The crankcase contains the cylinder bores,
pistons, bearings, crankshaft, governor port and
connecting rods.
Figure 1.1
4000263d
Figure 1.2
1 CYLINDER HEAD
2 CRANKCASE
4000264d
1
2

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