Abstract: A beer dispenser includes a timer-controlled automatic lever-operating mechanism which is mounted on a beer faucet by means of a quick-disconnect coupling. A lock is provided for preventing unauthorized removal of the lever-operating mechanism. When the lock is released, the device is quickly removed from the faucet for manual operation of the faucet or for cleaning the faucet. A trip lever behind the faucet spout actuates a timing circuit which opens the faucet valve for a preselected period. A manual switch in the device permits addition of a single small portion of beer, to replace head spillage.