Lay the chair you are converting on its back.
Position the top-front of the lift mechanism evenly with the bottom-front of your chair.
Hold the lift mechanism against the bottom of the chair with your leg. Attach the U-bolts included with the mechanism over the base of the chair and through the holes on the mechanism. Attach the front U-bolts first.
Attach the provided nuts to the U-bolts. Tighten them finger-tight.
Repeat Steps 2 through 4 on the rear of the chair.
Tighten all nuts finger-tight again.
Thread the power cord through the back of the chair. Plug it into the lift mechanism's power adapter.
Thread the mechanism's hand-controller cord through the side of the chair. Insert it into the quick-disconnect plug on the back of the lift mechanism.
Attach the cord under the chair arm with the provided clamp and screw.