There is a bolt on the spring bar receivers (just to each side of the ball) that should be tightened to 45 in-lb (check manual to verify this spec) - this is your friction damping adjustment.
Hookup is the same as for any load leveling hitch. Drop the coupler on the ball, set the ball latch. Lift the ball 5-10 inches so you can load the spring bars (with the Eq this is setting them on the L bracket rather than lifting a chain bracket), secure the brackets, lower the ball, hookup safety chains, etc.
for some ideas on hitch setup, see
If the hitch makes too much noise, grease the L brackets and the receiver as per manual.