Install Seat and Back Pads Install screws and washers securing the seat pad to the main frame using an 8mm Allen wrench. Item Description Qty. 1 Seat Pad 1 2 Main Frame 1 3 Washer, Flat 3/8" 4 4 Screw, M10 x 1.5, 25mm 4 Tighten hardware to 40-50 in-lb (4.5-5.6 Nm). Install screws and washers securing the back and lumbar pads to the main frame using an 8mm Allen wrench. Item Description Qty. 1 Back Pad 1 2 Lumbar Pad 1 3 Screw, M10 x 1.5, 35mm 6 4 Washer, Flat 3/8" 6 Tighten hardware to 40-50 in-lb (4.5-5.6 Nm). Parent topic: Assembly Procedure