4-68. AIR LINES AND FITTINGS MAINTENANCE (Con't).
Pull air tube (4) through grommets (8) and remove from chassis or dolly.
Inspect grommets (8) for damage or corrosion. Replace grommets if damaged or corroded.
Inspect all tee fittings (6), elbows, nipples, and other parts for damage. Replace if damaged.
Unscrew and remove tube nut from tube fitting.
Remove tube fitting and compression sleeve from tube. Discard compression sleeve. Tube nuts and fittings
may be reused, but compression sleeve must be replaced.