The turning radius on a lift truck is also known as the turning circle. This information is important for a machine operator to have. It gives the driver the information of how much space is needed to turn the forklift around. For instance, a tighter turning radius allows the machinery to operate successfully in tight places and crowded areas, therefore enhancing the maneuverability of the forklift. Operators who do not know this measurement could cause damage to the equipment or to the property.
Prior to checking the turning radius, check the steering geometry alignment and correct it if it needs adjustment. Start the test with having the trained operator inside the cab to control the machine's functions. A second person on the ground uses a spray bottle or a hose to wet the inside and outside of the model's wheels. Next, drive the equipment in a complete circle with the wheels turned to the maximum angle. Repeat the process once and continue if necessary to wet the wheels.
Measure the watermarks left by the tires using a tape measure when your measurement test has been completed. The watermark test starts from the tire mark's midpoint to a similar point across the circle's diameter. For the outside turning diameter, measure the watermark left by the outside tires from the circle's one side to the circle's opposite side. The inside turning diameter could be established by stretching the tape measure across the circle left by the inner tires. Next, divide these numbers in 2 in order to establish the turning radius. Be sure to note that the turning center is the midpoint of the circle's diameter.
Drop a plumb line from the extreme outside radial extension on the vehicle in order to determine the wall-to-wall turning diameter. Once this is completed, next find the point on the pavement directly below. This point to the turning center indicates the vehicle clearance radius. As a rule, wall-to-wall turning diameter is two times the clearance radius of the equipment.