5th Wheel Adapter
Removal, Inspection and Replacement See figure 3-86.
The adapter is held in place in the operating position with 12 bolts all of which have double nuts.
Use a forklift to support the adapter box and remove the 12 fasteners holding it in place.
Lower the adapter from the upper fifth wheel plate on the chassis before removing it as it has dowel pins for
Inspect the box for cracks or damage. Repair any damage or replace the box.
Inspect the 5th wheel pin and the plate through which it projects. If either are damaged or show considerable
wear, replace the adapter box.
Use a fork lift to position the adapter box below the king pin on the trailer.
Raise the adapter box so that the dowel pins locate it correctly.
Install the bolts, lock washers and double nuts. Torque the bolts.
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