Technical
Information
PA1627 X3-45 Operator’s Manual
9-7
4
th
............................................................... 1.000
5
th
............................................................... 0.737
6
th
............................................................... 0.639
Reverse ...................................................... 4.801
Converter........................................................ 1.9
Differential ratio (optional) ............................ 3.58
PROPELLER SHAFT
Hayes-Dana SPL250 type tubular shafts,
provided with heavy-duty universal joints.
BRAKES
The features of the braking system include a
dual system where the front and rear circuits are
completely independent from each other. The
brakes are air operated disc type brakes with
automatic slack adjusters on front, drive and tag
axles. The emergency/parking brakes are
located on the drive and tag axles only.
BRAKE CHAMBER EFFECTIVE AREA
Front axle .................................................. 24 in
2
Drive axle .......... 24/24 in
2
(service / emergency)
Tag axle ............. 14/16 in
2
(service / emergency)
AIR SYSTEM
Compressed air is provided by a twin cylinder,
31.8 cfm Wabco, gear-driven, water-cooled and
engine oil lubricated air compressor.
ANTILOCK BRAKING SYSTEM (ABS)
The antilock braking system has one Electronic
Control Unit (ECU) controlling a four channel
system. A wheel slip sensor is mounted at each
front axle and drive axle wheel. The Tag axle
wheels are slave to the drive axle wheels.
The Electronic Control Module (ECM) is
maintenance free. Its operating voltage is 24 ±
6 volts DC. The thermal operating range for the
ECM is from -40 to 167°F (-40 to 75°C).
The solenoid control valves are maintenance
free. Their operating voltage is 24 (+4.8, -2.4)
volts DC. The rated current draw is 1.65 amps.
The thermal operating range of the solenoid
control valves is from -40 to 176°F (-40 to 80°C).
TROUBLESHOOTING AND TESTING
For troubleshooting and testing of the vehicle's
anti-lock braking system, refer to Meritor
WABCO Maintenance Manual:
“Anti-Lock Brake
Systems For Trucks, Tractors and Buses"
or use
dashboard Driver Information Display (DID).
AUTOMATIC TRACTION CONTROL
(ATC) – ELECTRONIC STABILITY
PROGRAM (ESP)
In addition to the ABS function, vehicle may be
equipped with an advanced model of Bendix
EC-60 controller to provide an
Automatic
Traction Control (ATC)
feature. Bendix ATC
can improve vehicle traction during acceleration,
and lateral stability while accelerating through
curves. ATC utilizes
Engine Torque Limiting
(ETL)
where the ECU communicates with the
engine’s controller and/or
Differential Braking
(DB)
where individual wheel brake applications
are used to improve vehicle traction.
The EC-60 advanced model controller also
provides ABS-based stability features referred to
as
ESP
Electronic Stability Program
.
Refer to Maintenance Manual, Section 12: Brake
and Air System for more information on this
system.
CAUTION
Even with ESP-equipped vehicles, the driver
remains responsible for ensuring vehicle
stability during operation.
DANGER
ESP may reduce the vehicle speed
automatically
.
ESP can make the vehicle
decelerate
automatically.
ESP can slow the vehicle with
or
without the operator applying the brake,
and
even when the throttle is being applied.
STEERING
ZF 8098 integral hydraulic assisted steering
gear;
Variable assistance in function of speed is
optional.
Volvo hydraulic pump gear driven from
engine drive.
Hydraulic reservoir and dipstick accessible
from engine compartment.
Summary of Contents for X3-45 2017
Page 1: ...OPERATOR S MANUAL X3 45 COACH...
Page 2: ......
Page 3: ...COACH MANUFACTURER OPERATOR S MANUAL X3 45 COACH Model Year 2018 PA1627 September 2017...
Page 8: ......
Page 12: ......
Page 28: ...Coach Exterior PA1627 X3 45 Operator s Manual 2 16...
Page 42: ...Coach Interior PA1627 X3 45 Operator s Manual 3 14...
Page 100: ...Controls and Instruments PA1627 X3 45 Operator s Manual 4 58...
Page 186: ...Care and Maintenance PA1627 X3 45 Operator s Manual 8 22...
Page 200: ...Technical Information PA1627 X3 45 Operator s Manual 9 14...
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