PREVOST X3-45 Multiplex, Maintenance Manual

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4 Component Replacement
40 Meritor WABCO Maintenance Manual MM-0112 (Revised 07-05)
2. Lubricate the replacement seal and install it in Port 2 of the
ATC valve.
Lubricate the large replacement O-ring and install it in the
groove of the relay valve supply port. Figure 4.12.
Figure 4.12
NOTE: Use Meritor WABCO-recommended lubricant.
3. Use the two M6 Allen-head bolts to attach the adapter to the
relay valve. Use a 5 mm Allen-head tool to tighten to 4-5 lb-ft
(6-8 N
폷
m). Figure 4.13.
@
Figure 4.13
4. Connect the supply air line to the supply port on the adapter.
Connect the treadle air line to the control port on the ATC valve.
5. Attach the wiring connector to the ATC valve. Hand tighten
only.
6. Remove the blocks and stands.
7. Test the installation.
Checking the Installation
1. Start the vehicle.
2. Fully charge the reservoirs with air. Shut off the vehicle.
3. Apply the brakes.
4. Listen for air leaks at all valves.
5. Drive the vehicle. Verify that the ABS indicator lamp operates
correctly.
Figure 4.12
Figure 4.13
xxxxx xxxxx
xxxxx xxxxx
1002044a
RELAY VALVE
SUPPLY PORT
1002045a
MOUNTING BOLTS
4-5 LB-FT (6-8 N•m)
O-RING
(INSTALLED)
SUPPLY
PORT
ATC VALVE
AND ADAPTER
CONTROL
PORT
ABS VALVE
PACKAGE
1002045a
MOUNTING BOLTS
4-5 LB-FT (6-8 N•m)
O-RING
(INSTALLED)
SUPPLY
PORT
ATC VALVE
AND ADAPTER
CONTROL
PORT
ABS VALVE
PACKAGE