Lift the top horizontal frame piece onto the vertical upright. Secure it with the heavy-duty bolts and washers.

Run the handles through a full range of motion without any weight plates pinned to ensure the cables are tracking correctly.

Bolt the main vertical upright onto the base frame. Do not tighten these bolts fully yet; leaving them slightly loose helps with alignment in later steps. Step 2: The Seat and Backrest Carriage

Insert the weight guide rods into the base. Slide your weight plates on one by one.

Slide the seat adjustment frame onto the main base.