GE GDF 570 Series Owner's Manual page 19

The 3rd rack is also removable to allow extra large items to be placed in the upper rack:
Rack
clips
To remove the 3rd rack:
1
Remove the silverware and utensil trays.
(See the IMPORTANT NOTES in this section.)
To replace the 3rd rack:
1
Extend both side rails fully out of the dishwasher.
2
Orient the rack so that its side clips are aligned
and centered with the posts on the side rail and
lower the clips onto the posts.
3
Move the rack to one side of the dishwasher until
the clips fall onto the posts.
Rack
clips
Rail
posts
2
Push the rack all the way to one side so that
a gap between it and the side rail forms on
the other side. Align the side rail posts with
the center of the clips on the rack and lift
straight up.
Rail posts
on inside
of rails
Rail
3
Continuing to hold the rack in the lifted
position, repeat on the other side.
4
Once the rack is removed, push the side
rails all the way back into the dishwasher.
4
Continuing to hold the rack in the lifted
position, repeat on the other side.
5
Once the rack is replaced, pull it all the way
out to lock it in place in its side rails.
Rail
post
Rack
Rail
clip
Pull rack all the way
out to lock it in place
6
Replace the silverware and utensil trays.
GEAppliances.com
Rack
clips
Rack
Push rack to
one side
Rail post
will slide
in or out
of this
opening
Rack
clip
Align rail posts with
rack clips - Pull rack up
Rail
post
Rail
19