VMAC - Vehicle Mounted Air Compressors
VMAC Technical Support: 888-241-2289
VMAC Knowledge Base: www.kb.vmacair.com
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Safety Test
Ensure the following has been completed:
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Place the automatic transmission in “PARK” and apply the park brake. Turn the
ignition “ON” but do not start the engine.
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Check the Control Box to see if it is illuminated. If there is no display, there is
no power to the Control Box.
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Press the “ON” button. The green light should come on and the compressor
clutch will engage, this should be audible.
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Release the park brake. The green light on the Control Box should flash and the
display will flash “PARK BRAKE”. Apply the park brake again and press the “ON”
button. The green light should come on.
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Press the “OFF” button.
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Turn the ignition “OFF”.
The engine must be running to complete the final steps in the safety test. This will
be done after the pre-start checks have been completed.
Testing the Installation
Place the vehicle in a safe operating position and adequately block
the wheels. Ensure that there are no people around the vehicle
before beginning the test
Before Starting the Engine Checklist
Ensure the following has been completed:
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Verify that the compressor oil level at the AOST sight glass is correct.
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Verify that the vehicle coolant level is correct.
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Perform a final inspection of the installation to ensure everything has been
completed.
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Check all wiring for security and protection. Ensure nothing is touching the
compressor body.
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Install the VMAC Air Test Tool (P/N: A700052) with the 70 cfm (0.190 in) orifice
installed and the ball valve closed.
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Ensure all of the compressor outlets are closed.
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Ensure the parking brake is engaged and the transmission is in “PARK”.
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Start the engine.
After Starting the Engine Checklist
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Check for any leaks, confirm belt alignment, and ensure the belts are rotating
properly.
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Close and latch the hood.
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Allow the vehicle to reach operating temperature.
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Turn on the compressor.
