Pull the top release pin to unlock
the antitilt leg from the rack frame, and then pull the bottom foot
of the antitilt leg away from the rack until it extends completely.
The leg support makes a clicking sound when it fully extends
and locks in place.
Rotate the leg's leveling foot
clockwise until it touches the floor.
The foot must touch the floor to stabilize the rack securely.
Repeat Step 2 and Step 3 to
extend the other antitilt leg.