The turning radius on a lift truck is also referred to 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 required to turn the lift truck around. Like for instance, a tighter turning radius allows the machinery to successfully operate in tight places and crowded areas, therefore enhancing the forklift's maneuverability. Operators who do not know this measurement can cause damage to the property or to the machinery.
Make the necessary steering geometry alignment corrections before testing the turning radius. The test should begin with an operator trainer assisting in the cab where they can assist to control the machine's functions. Another person on the ground uses a hose or a spray bottle to wet the inside and outside of the model's wheels. Then, drive the machine in a whole circle with the wheels turned to the maximum angle. Repeat the process once and continue if necessary to wet the wheels.
After this measurement test has been done, measure the watermarks left by the tires utilizing a tape measure, from the midpoint of the tire mark to a similar point across the diameter of the circle. For the outside turning diameter, measure the watermark left by the outside tires from one side of the circle to the opposite side of the circle. The inside turning diameter can be established by stretching the tape measure across the circle left by the interior tires. After that, divide these numbers in 2 to be able to determine the turning radius. Be sure to note that the turning center is the midpoint of the diameter of the circle.
Drop a plumb line from the extreme outside radial extension on the machinery in order to determine the wall-to-wall turning diameter. When this is accomplished, next locate the point on the pavement directly below. This point to the turning center indicates the clearance radius of the machine. As a rule, wall-to-wall turning diameter is two times the clearance radius of the equipment.