Easy to do without any fuss.........remove one fitting and hose from the cooler and insert the small hose form this into the cooler. Then use it when you want to bleed the brakes too. They work well.
http://www.toolsource.com/brake-blee...bv4vosmmjek4e0
Fill the cooler directly before restarting the engine, and if you can it's a good idea to remove the distributor and spin the pump for a brief period to refill all the lines and purge any air in the lines or cooler.