4 - 3 8 . AIR COUPLING REPLACEMENT.
This Task Covers:
General mechanic's tool kit
It Is not necessary to remove air coupling to replace preformed packing.
Remove air coupling (3) from adapter (2) on hose assembly(1).
If damaged, remove preformed packing (4) by prying out with a blunt instrument. Discard preformed packing.
If removed, install new preformed packing(4) using a blunt instrument. Ensure that preformed packing is flat and
properly seated in groove of air coupling (3).
Apply antiseizing tape to male threads of adapter (2). Install air coupling (3) on adapter on hose assembly(1).
Use a soap solution to check for leaks. No leaks are permissible.