3-8. CLEANING AIR COUPLING.
remove any buildup of grease, dirt, etc.
ter to thoroughly clean air coupling (1).
c. Allow air coupling (1) to dry.
XM1073 air tank drain handle is on curbside
b. Pull air tank drain handle (1) and allow air
pressure and moisture to drain completely. Release han-
d. Pressurize brake system and check for
leaks. No leaks are permissible.