NewAir NKR058MB00 Owner's Manual page 16

EN
Coupler Installation
Insert the keg coupler into the locking neck of the beer keg and turn it
clockwise to lock into position, making sure the keg coupler is in the closed
position (handle upright).
Note: Do not put the keg coupler in the open position (handle down) until you
have assembled the entire Kegerator. (See page 18)
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