Allow engine to cool before performing troubleshooting maintenance. If necessary use insulated pads
and gloves. Hot engine components will burn and cause injury to personnel.
Wear safety goggles when performing tests
on valves. Failure to do so may result in
serious eye injury due to high pressure air.
Check air line 2600 for damage, crimps or
leaks (Para 12-36 and schematic
(1) If air line is damaged, crimped or
leaking; tighten fittings,
or replace air lines.
(2) If there are no leaks, crimps,
or damage; air line 2600 and fittings
Check purge valves on air dryers and
aftercooler for air leaks or damage.
(1) If purge valves are leaking or
damaged, replace valves
(Para 12-21 and 12-22).
(2) If purge valves are not leaking or
damaged, valves are OK.