They come apart the same as Profiles do. Take the wheel off the bike (obviously?) keeping the bolts on, then knock the non-driveside with a rubber mallet, and that'll push the axle out, with one hub bearing attatched. Now open up a vice slightly so the driver/cog can rest on it, and just gently tape the other bolt with the mallet, and that'll bring the driver off! Now remember which sides the springs and pawls sit on, and take them off. Now sit the axle back in the hub, and slide the empty driver on (REMEMBER the wafer thin washer that sits between the hub bearing and the driver!) and gently tap the driver into the bearing. This should then sit the axle nicely between the hubshell bearings and keep it in place. Now just slide the driver off (will be easier this time as the end caps aren't back on) Clean it all up, dab a bit of 3in1, or Bikehut/Finishline wet synthetic oil on it, and put it all back in place. Make sure you have the pawls on the right side so they engage properly, spin the driver round as you push it on to make sure all the pawls engage as it goes on, once that's on, just knock the end caps onto the ends of the axle with the mallet, and you're done! Simples.