BRAKE SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
N OT E
Tag hoses prior to removal to ensure correct installation.
Use a suitable container to catch any fluid that drains from hoses or system. Dispose of fluid IAW local
policy and ordinances. Ensure all spills are cleaned up.
There are two purge screws at top of front and rear axles.
Perform this procedure for one service brake at a time.
For a better understanding of each system, review the appropriate section in Theory of Operation (WP
PURGE BRAKE SYSTEM AIR