Cap system for pallet jack

A materials transport system, comprising:

• a pallet jack comprising forks with load wheels, a steering handle, steer wheels, and an A-frame;
• and
• a pallet jack cap system comprising:
• a stabilization outrigger secured around the steer wheels of the pallet jack, the stabilization outrigger comprising a stabilization truss and stabilization wheels secured at opposite ends of the stabilization truss;
• a perimeter bonnet in an elevated position over the forks of the pallet jack for securing items in transport by the pallet jack;
• a vertical extension system secured between the pallet jack and the perimeter bonnet and supporting the perimeter bonnet in the elevated position over the forks of the pallet jack, the vertical extension system comprising:
• an anchor base configured for attachment to the A-frame of the pallet jack;
• an elevating vertical support assembly extending from the anchor base, the perimeter bonnet being secured in a cantilevered arrangement at one end of the elevating vertical support assembly;
• an elastic counterpoise arranged to assist with positioning the perimeter bonnet at a particular elevation based on an extension of the elevating vertical support assembly in counterbalance against a weight of the perimeter bonnet;
• and
• an extension lock to secure the elevating vertical support assembly at the particular elevation.