TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Air Governor (Air Compressor Pumps Continuously) (012-018)
Section 12 - Compressed Air System - Group 12
Page 12-19
Install the air governor line to the unloader body and tighten.
Air Governor (Air Compressor Pumps
Continuously) (012-018)
Test (012-018-012)
Remove the accessory air lines from the air governor
unloader port.
NOTE: Do not disconnect the line from the air compressor
unloader valve. Do not disconnect the reservoir air line
from the air governor. If the governor is mounted on the
compressor, do not remove the governor from the
compressor.
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 equipment
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 the air compressor
unloader valve port.
NOTE: If the governor is mounted on the air compressor,
then the governor will have to be removed.
L-1223
