Hyundai HC20V4A-A Original Instructions Manual page 17

NOTE: Condensate is a polluting material and should be disposed of in compliance with local regulations.
CHECKING THE SAFETY VALVE
WARNING!
Do not attempt to tamper with the safety valve. Anything loosened from this device could fly up and hit you.
Failure to heed this warning could result in death or serious personal injury.

Install the battery pack.

Turn the air compressor ON and allow the tank to fill. The compressor will shut off when the pressure
reaches the cut-out pressure.

Turn the air compressor OFF
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