ADD Assembly (HDU-ADAT, HDU-ADDPR, HDU-ADCC)

  1. Connect the upper tower/upright assembly and upright/cross member assemblies with the 6 inch connecting weldment and hand tighten hardware.
    Item Description Qty.
    1 Rectangle Tubing Nut, 11GA, 3" 4
    2 Tower/Upright Assembly 1
    3 6 Inch Cross Member Weldment 1
    4 Screw, 1/2-13 X 1.25 4
    5 1/2 in Star Washer 4
    6 Upright/Cross Member Assemblies 1
  2. Connect the upper tower/upright assembly and upright/cross member assemblies with the corner brace weldment and hand tighten hardware.
    Item Description Qty.
    1 Tower/Upright Assembly 1
    2 Screw, 1/2-13 X 4.5 4
    3 Backing Washer 4
    4 Cross Member Assembly 1
    5 Washer, Step, 1/2 in, 0.57 in 2
    6 1/2 in Lock Nut 4
    7 Corner Brace Weldment 1
    8 1/2 in Star Washer 2
  3. Connect the lower tower/upright assembly and upright/cross member assemblies with the 6 inch connecting weldment and hand tighten hardware.
    Item Description Qty.
    1 Tower Assembly 1
    2 Rectangle Tubing Nut, 11GA, 3" 4
    3 6 Inch Cross Member Weldment 1
    4 Screw, 1/2-13 X 1.25 4
    5 1/2 in Star Washer 4
    6 Upright/Cross Member Assemblies 1
  4. Tighten hardware with backing washers to 20-25 ft-lb (27.1-33.9 nm) Tighten all other hardware to 45-50 ft-lb (61-67.8 nm).
  5. Add optional trays to upright and tighten hardware to 20-25 ft-lb (27.1-33.9 nm).
    Item Description Qty.
    1 Screw, 1/2-13 X 4.5 2
    2 Backing Washer 2
    3 Tower Assembly 1
    4 Washer, Step, 1/2 in, 0.57 in 2
    5 1/2 in Lock Nut 2
    6 Optional Tray Assembly 1
Parent topic: Assembly Procedure