Relates a brief history of the first hydraulic elevators. Compares hydraulic elevators with traction elevators. Discusses safety guidelines for drilling elevator jack holes and installing hydraulic elevators. Describes the typical steps for hydraulic elevator installation, as well as the proper ways to unload, handle, and store materials on the jobsite. Details the installation of the cylinder (handling, rigging, plumbing, corrosion protection, and backfilling). Defines the basic parts of the jack and describes the installation of the plunger.