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KING PIN TRAILER PLATE INSTALLATION:
FOR KING PIN BOXES WITH A FLANGE:
1. Place the Trailer Plate {J2} over the King Pin, with the guide wedge towards the rear of the trailer (wedge facing down). Align the Trailer Plate {J2} square with the king pin box and clamp in place to prevent movement.
2. Mark the holes for drilling through the Trailer Plate {J2} onto the King Pin Box flange.
3. Remove the Trailer Plate {J2} or use it as a guide and drill ž “ holes through the flange.
4. Re-install the Adapter Plate (as in step 1).
5. Use the ž” bolts provided, to secure the Trailer Plate {J2} onto the king pin box flange. A minimum of 10 bolts must be used to fasten the plate on. For use with heavy trailers, more bolts will be needed to secure this plate.

FOR KING PIN BOXES WITHOUT FLANGES: (Figure 4)
1. Place the Trailer Plate {J2} over the King Pin, with the guide wedge towards the rear of the trailer (wedge facing down), and hold in place to prevent movement.
2. The Trailer Plate {J2} can be secured to the King Pin Box sides by welding angle iron sup- ports to the King Pin Box, or use the procedure in step 3. (Angle iron is not provided).
3. For the holes where you cannot reach the backside, drill holes with a #8 drill and tap with a ž”-20 tap.
4. If the Trailer Plate {J2} extends beyond the King Pin Box, then install the Knee Braces as shown in Figure 4.
5. Install the Trailer Plate {J2}, using the ž” bolts provided, to secure the Trailer Plate {J2} onto the King Pin Box. A minimum of 10 bolts must be used to fasten the plate on. For use with heavy trailers, more bolts will be needed to secure this plate. The fasteners used in step 4 do not count as part of the minimum number of bolts required.

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