Dannmar’s DJ-6000 Rolling Bridge Jack is the simple and safe way to turn your lift into a full-service car lift. With this Rolling Bridge Jack’s 6,000-lb. lifting capacity, you can take on even more types of vehicle repairs. Simply position the jack under the appropriate front or rear chassis area, and lift the vehicle up and off of the runways. Each chassis-engaging jack raises one-half of the vehicle, and two will raise all four wheels above the runways. Each four-post rolling bridge jack can be raised to three different heights. Locks engage automatically as the jack scissor arms raise, and they release simultaneously as the arms are lowered. Welded to the side of the rolling bridge jack, is a high-pressure, air-hydraulic pump that requires 125 psi and 10-20 CFM. It’s activated when you press a foot pedal attached to the unit.