Glossary of Terms

Here are a few of the many important terms you will learn in your Aerial & Scissor Lift training course

AC Powered Machines that are run on AC power (alternating current) need to be plugged into an AC source rather than running off of its own battery (DC or direct current).

Automatic Brake Control In this type of system the brakes are engaged whenever the travel switch is off.

Bubble Level Similar to a carpenters level which aids in leveling the machine prior to operation.

Emergency Controls These are controls on the platform that work off of the battery that will allow the operator to lower the platform in case the aerial lift engine runs out of fuel or stops and cannot be restarted.

Free Fall The distance of a fall before a personal fall arrest system begins to apply force to arrest the fall.

Ground Fault When an energized power line is ground suddenly by a tree falling against it or other object that conducts the electricity to the ground.

Harness n fall protection, it is a configuration of connected straps to evenly distribute a fall arresting force over the thighs, shoulders and pelvis, with connections for attaching a lanyard, lifeline, or deceleration device.

Load Test During this test the crane will pick a load that is 110 percent or more of capacity to test structural capacity and for mobile cranes the stability of the crane. This test can also reveal the condition of the winch brakes and hydraulic lift cylinders.

Slid Pads A synthetic material on the inner sections of a telescoping boom that helps to cut down on wear during telescoping functions and excessive movement while swinging the boom.

Tie Off Connect the lanyard portion of your personal fall arrest system to a suitable anchorage point.

Turret Section This is the part of the crane mounted on the pedestal that supports the boom and allows it to swing.