PREVOST X3-45 Multiplex User Manual

4 Component Replacement
38
Meritor WABCO Maintenance Manual MM-0112 (Revised 07-05)
Front or Rear ABS Valve Package
Removal and Installation — Complete Package
1. Place blocks under tires to stop the vehicle from moving.
2. If necessary, raise the tires off the ground.
3. Drain the air from all system air tanks.
4. Remove all the air lines and connections from the ABS valve
package. Figure 4.7 and Figure 4.8.
Figure 4.7
Figure 4.8
5. Remove the mounting bolts from the valve package. Remove
the valve package from the vehicle.
6. Replace the ABS valve package: Tighten the bolts to the
vehicle manufacturer’s recommendation. Remove the blocks
and safety stands as necessary.
7. Test the installation.
Removal and Installation — Component Valves
1. Remove the ABS valve package from the vehicle. Figure 4.9.
Figure 4.9
2. Use a 6 mm Allen wrench to loosen and remove the Allen-head
bolts.
3. Carefully separate the ABS modulator valve(s) from the relay or
quick release valve.
4. Remove and discard old O-rings. Lubricate replacement
O-rings with the grease provided.
5. Plug any unused ports on the replacement valve(s).
6. Attach the ABS modulator valve(s) to the relay or quick release
valve. Use a 6 mm Allen wrench to tighten the Allen-head bolts
to 13-15 lb-ft (18-20 N폷m).
@
7. Replace the ABS valve package: Tighten the bolts to the
vehicle manufacturer’s recommendation. Remove the blocks
and safety stands as necessary.
8. Check the valves for leaks:
앫 Modulator valve(s). Refer to the procedure for checking the
modulator valve installation in this section.
앫 Relay or quick release valve. Refer to the procedure for
checking the quick release or relay valve installation in this
section.
Figure 4.7
Figure 4.8
1003362b
472 500 30. 0
MADE IN GERMANY
001 20/98
SUPPLY PORT
1/2" NPT
QUICK RELEASE
VALVE
1/2" NPT
DELIVERY
PORTS
MODULATOR
VALVE
FRONT ABS VALVE PACKAGE
1003361b
ABS
MODULATOR
VALVE
RELAY
VALVE
CONTROL
PORT
1/4" NPT
ABS
MODULATOR
VALVE
DELIVERY
PORTS
1/2" NPT
DELIVERY
PORTS
1/2" NPT
SUPPLY
PORT
1/2" NPT
DELIVERY
PORTS
3/8" NPT
REAR ABS VALVE PACKAGE
Figure 4.9
xxxxx xxxxx
xxxxx xxxxx
xxxxx xxxxx
1002041c
472 500 30. 0
MADE IN GERMANY
001 20/98
ALLEN-HEAD BOLTS
ALLEN-HEAD BOLTS
13-15 LB-FT
(18-20 N•m)
13-15 LB-FT
(18-20 N•m)

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