Pallet jacks are an indispensable part of warehouse work equipment. These devices are two pronged, wheeled, hand pushed and pulled machines that have hydraulic lifting action similar to floor jacks for automobiles. They allow workers to move loaded or unloaded pallets quickly and easily from one place to another without having to gain access to a forklift vehicle. They are safe and effective if used properly and well maintained. Here is how they are used in a specific sense:1.The worker wheels the pallet jack so that its prongs are aligned with the two open corridors of the pallet (the spaces between framed sections). He pushes the pallet jack into these corridors, making sure it rolls over the edge of the pallet frame.2.Next, the worker pumps the control arm which creates hydraulic pressu