Note: This is probably by Blum, or a close copy.
The orange lever unlocks the front of the drawer, and then it slides a bit forward and then lifts out easily. At the rear of each of the drawer slides is a pin that fits into a drilled hole in the back of the drawer. These can sometimes be a bit fiddly to line up when you re-install the drawer. Be gentle with it.
The gray slider part is for fine-tuning the drawer height at the front, it slides fore and aft in the track under the orange lever about 3/4 of an inch or so and levers the front edge of the drawer up and down a total of about 1/4 inch.
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.