7. Slowly open the ball valve on the test tool and observe the
operation. If the throttle enable wire has been connected, the
engine should idle up as the pressure drops to 120 psi.
If the air pressure drops below 100 psi, increase
hydraulic flow to bring the pressure back up. Do not
exceed specifications
8. Close the ball valve to allow the system pressure to rise. When
the control system does not sense air use for a few seconds, it
will unload the compressor. You should hear a hissing noise as
the air vents. If the air pressure doesn't drop, after approximately
another 20 seconds, the engine will idle down to the lower speed
setting.
9. After one minute (if the air pressure still hasn’t dropped) the
compressor will stop turning and the hydraulic oil will continue to
circulate through the cooler. The system will continue to monitor
hydraulic oil temperature and will run the cooling fan as required.
Once air is used and pressure drops below 120 psi, the
compressor will restart and build air pressure. The system may
restart occasionally even without air use to maintain correct
compressor operating temperatures.
VMAC – Vehicle Mounted Air Compressors
Toll Free:
1-888-241-2289 Local: 1-250-740-3200
Fax: 1-250-740-3201
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