TM 5-3810-307-24-1-2
Install pipe plugs in the air governor unloader ports where
accessory air lines were removed.
Operate the engine to activate the air compressor.
If the air compressor stops pumping (air pressure stops
rising) at the governed air pressure, there is a leak in an
accessory or an accessory air line. Refer to the equip-
ment manufacturer's instructions for troubleshooting and
repair.
If the air compressor does not stop pumping (air pressure
continues to rise) at the governed air pressure, connect a
regulated shop air pressure line to one of the following:
The air compressor unloader valve port
One of the air governor unloader valve ports.
NOTE
Be sure the air pressure gauge is accurate,
and the supply lines and fittings are in good
condition before per-forming any air pressure
checks.
Use a master gauge of known accuracy to check the air
pressure gauge.
Apply 690 kPa [100 psi] air pressure to the unloader port.
If the air compressor stops pumping (air pressure stops
rising), the air governor is malfunctioning and must be
repaired or replaced, or the air governor mounting gasket
is leaking. Refer to the manufacturer's instructions.
Change-1 12-17
