Adjusting Blum Soft Close Drawer Slides. Adjusting soft close drawers are easy. Length is also critical - make sure hes familiar with Blum specs may not be if he used something else on your drawers we used Blum Tandem Plus not softclose Blumotion but still undermount and soft enough for me 18 457 size on my 18 deep outside measure drawer boxes they swore they would mount correctly in 21 deep vanity but we had to add 12 mounting blocks scraps of baseboard.
Unfasten the drawer slides on either side of the recess where the drawer fits using a screwdriver. Adjust your under mount soft close drawer by moving the adjustment knob in the corner of the drawer clip. All worked pulling in and out.
With the drawer properly positioned drive screws into the holes to lock the slide in place.
Pull the slides onto the clips mounted to the bottom of the drawer box. Adjust your under mount soft close drawer by moving the adjustment knob in the corner of the drawer clip. Adjust the drawer if it will not shut completely after adjusting the runners. Then you can adjust the drawer track in and out to make the drawer front flush with the front frame.
