First, make your beer. Make sure your beer has finished fermenting before you keg. If in doubt, wait a few more days, or use your hydrometer. Don't keg beer that's not completely fermented as it will overcarbonate the beer and damage the mini keg.
Kegging Instructions - On kegging day, prepare your kegs by cleaning them well with warm water and a gentle bleach and sanitize as you would with bottles. You will need 4 kegs to handle a 23 litre batch. Instead of pouring the brew and sugar straight into the mini keg, pour it into a 25 litre priming bucket. Mix in the brew with 1/3 cup of sugar (Coopers brew enhancer 2 is best). This rate is less than for bottles. After the beer is primed, fill the mini kegs to about 25 mm short of full. The beer needs headspace to carbonate properly. Close the top of the mini keg with the rigid two-piece bung. Make sure the small centre piece does not push into the keg. The bung is shipped to you assembled. Wet the bung with some clean water and push the bung into the top of the keg. Store the full kegs the same way you would bottles, at room temperature for at least two weeks before moving them to a cooler location. Three weeks after that, depending on the type of beer, it will be ready to drink.
To Gravity Dispense - There are two dispense options. First, you can dispense the beer from the bottom of the keg with the integral dispense valve. Simply pull out the valve and twist to pour. Your first beer may be cloudy from the priming yeast. This method is only good for occasions when you will consume all the beer at one sitting. Keep the keg cold while you are drinking to prevent excessive foaming in the keg.
To Dispense with a CO2 Tap - Chill the keg, usually by putting it in the fridge the day before. Assemble the dip tube onto the tap head as shown in the photo on the box. Hold onto the tap head and push the dip tube straight down into the bung center, with the tap guided by your hands. Push the tap assembly all the way down until you can clip the plastic holders onto the rim of the can. Make sure the regulator is set to the off position. If you hear a faint hiss from the bung, rotate the tap slightly back and forth until it stops. Insert a CO2 cartridge as per the instructions on the box but do not turn the CO2 regulator on yet. Dispense a beer. After two glasses of beer been dispensed, add a little CO2 by turning the valve on for a moment. Or, if you are pouring continuously, leave the valve on as you pour. If the beer is too foamy, use less CO2. When you finish serving for the day, turn the CO2 valve off. You can keep beer in the tapped keg for weeks, provided you keep the keg cold. If you are not using the keg for a few days, turn the valve on for a moment to top-up the CO2 pressure in the keg before pouring.
Never unscrew the CO2 bottle if there is still gas pressure present.