Schwinn Lumina Owner's Manual page 21

❸ Place the tab washer on the axle. Fit the tab into the slot on
the bicycle frame dropout. Note: If your bicycle frame doesn't
have a slot in the drop out, rotate the tab to fit into the axle
slot. Figure 4.8
❹ Insert the coupler plate onto the wheel axle. Figure 4.9
❺ Insert the quick release lever, spring and nut that were
removed in step 1 through the wheel.
❻ Rotate the quick release lever up and tighten. When properly
tightened, the quick release lever should leave an imprint in
your hand. The pressure should be firm but not excessive.
Slot
Tab
washer
Figure 4.8
Quick
release lever
and spring
4
5
Figure 4.9
Schwinn Lumina Trailer 18