PREVOST LE MIRAGE XLII BUS SHELLS User Manual

Section 12: BRAKE AND AIR SYSTEM
PA1553
2
17. QUICK RELEASE VALVES (QR-1)................................................................................................11
18. SPRING BRAKE VALVE (SR-7).....................................................................................................11
19. PRESSURE PROTECTION VALVE (PR-4)....................................................................................12
20. LOW PRESSURE INDICATOR (LP-3)............................................................................................12
21. SHUTTLE-TYPE DOUBLE CHECK VALVE (DC-4).......................................................................12
22. AIR HORN VALVE ..........................................................................................................................12
23. AIR SYSTEM TROUBLESHOOTING .............................................................................................13
24. BRAKE OPERATION......................................................................................................................13
25. AIR BRAKES...................................................................................................................................13
25.1 DISC BRAKES..............................................................................................................................13
25.1.1 Disc Brake Pads....................................................................................................................13
25.1.2 Caliper Maintenance .............................................................................................................14
25.1.3 Roadside Inspection for Knorr/Bendix Air Disc Brakes.........................................................15
25.1.4 Pad Removal.........................................................................................................................15
25.1.5 Checking Pad Wear ..............................................................................................................16
25.1.6 Important Pad and Rotor Measurements..............................................................................16
25.1.7 Checking Caliper Guidance and Seal Condition...................................................................16
25.1.8 Checking the Tappet Boots...................................................................................................17
25.1.9 Pad Installation......................................................................................................................17
25.1.10 Adjusting the Running Clearance......................................................................................17
25.1.11 Brake Tools........................................................................................................................18
25.1.12 Checking Brake Pads ........................................................................................................18
25.1.13 Torque specifications.........................................................................................................18
26. SAFE SERVICE PROCEDURES ....................................................................................................18
27. AIR BRAKE TROUBLESHOOTING ...............................................................................................19
28. BRAKE AIR CHAMBER..................................................................................................................23
28.1 MAINTENANCE.............................................................................................................................23
28.2 EMERGENCY/PARKING BRAKE MANUAL RELEASE .........................................................................24
28.3 BRAKE CHAMBER REMOVAL.........................................................................................................24
28.4 BRAKE CHAMBER INSTALLATION...................................................................................................24
28.5 BRAKE CHAMBER DISASSEMBLY ..................................................................................................25
29. ANTI-LOCK BRAKING SYSTEM (ABS).........................................................................................25
29.1 TROUBLESHOOTING AND TESTING ................................................................................................26
29.2 ABS COMPONENTS.....................................................................................................................26
29.2.1 Electronic Control Unit (ECU) ...............................................................................................26
29.2.2 ABS Modulator Valve ............................................................................................................26
29.2.3 Sensors .................................................................................................................................27
29.2.4 Sensor Installation.................................................................................................................27
29.2.5 Spring clip..............................................................................................................................27
30. FITTING TIGHTENING TORQUES .................................................................................................29
31. SPECIFICATIONS ...........................................................................................................................30

PREVOST LE MIRAGE XLII BUS SHELLS Specifications

General

Brand	PREVOST
Model	LE MIRAGE XLII BUS SHELLS
Category	Buses
Language	English