Pull the drawer as far as it can go then tilt the drawer upwards slightly and lift out. To replace again tilt the drawer upwards slightly so that the rollers on the drawer go in front of the rollers on the slide rails. Now push the drawer shut.
Good Luck
Brian L, September 2009
The two-piece sliders on some kitchen drawers are often fitted with one piece screwed to the drawer side and its mating friend screwed to the carcass of the cupboard unit. They have to have a stop mechanism else the contents might fall on the floor.
Some sliders have a catch (usually the more expensive and annoying ones) but many just lift out - pull to the end of the run and lift the front of the drawer up and out it comes.
Sadly nobody can see your drawers so you'll have to work it out for yourself - by observation trial and error...
Good luck...
Peccavi, September 2009
edit
I can answer this question...
how do I take out the drawer from the kitchen unit?