Arc Pull Up Assembly Check with customer for location, then attach the arc pull up assembly to the mid weldment or end beams. Tighten hardware to 20-25 ft-lbs / 27.1-33.8 Nm. Item Description Qty. 1 Bolt, 1/2-13 X 3.50 UNS HEX FHB G5 ZN 4 2 Backing Washer 4 3 Arc Pull Up Assembly 1 4 Washer, Step, 1/2, 0.20 IN Deep 4 5 Nut, Nylock 1/2-13 4 6 Mid Weldment 1 Parent topic: Assembly