Hyundai HC20V4A-A Original Instructions Manual page 15

CONNECTING / DISCONNECTING THE AIR HOSE
To connect an air hose:

Make sure the air compressor is turned off and the battery pack is not installed.

Rotate pressure regulator knob fully in the counterclockwise direction so that the outlet pressure is at
zero (0) bar/PSI.

Attach hose with quick connect air fitting to the ¼ in. quick coupler on the air compressor. Make sure to
push the hose adapter end fully into the coupler until the sleeve springs forward to lock it in place.

Confirm that the outlet pressure is at zero (0) bar/PSI.

When disconnecting a hose from the ¼ in quick coupler, always firmly hold the release end of the hose.

Pull back on the release sleeve on the ¼ in. quick coupler.

With a firm grip, pull out the quick-connect air fitting that is attached to the quick coupler.
BREAK-IN PERIOD
Before first use, install the fully charged 4.0Ah battery pack. Run the air compressor at zero tank pressure
with the drain valve fully open for 30 minutes or until the battery pack is completely discharged, whichever
happens first.
TURNING THE AIR COMPRESSOR ON/OFF (FIG.B)

Install the battery pack.
 Move the ON/OFF switch to the " I " position to power the compressor.
 To turn the air compressor off, move the ON/OFF switch to the "O" position.
NOTE: When the compressor is in the ON position, the air compressor will automatically turn back on when
the designated tank air pressure drops below the preset pressure limit. It will also shut off again when the
cut-off pressure is reached.
15
(FIG.B)