Wear safety goggles when performing leakage tests on valves. Failure to do so may result in serious eye
injury due to high pressure air.
Check air horn valve lever for free
movement and air horn valve for damage or
(1) If air horn valve lever does not have
free movement and/or air horn
valve is damaged or leaking,
replace air horn valve (Para 19-11).
(2) If air horn valve lever has free
movement and/or air horn valve is
not damaged or leaking, go to
Step 2 of this Fault.