The turning radius on a lift truck is also referred to as the turning circle. This information is important for a machinery operator to have. It gives the operator the knowledge of how much space is required to turn the forklift around. For instance, a tighter turning radius enables the equipment to function successfully in crowded areas and tight places, therefore enhancing the maneuverability of the forklift. Drivers who are not aware of this measurement can cause damage to the machinery or to the property.
Before checking the turning radius, check the steering geometry alignment and correct it if it needs adjustment. Begin the test with having the trained operator in the cab to control the equipment's functions. A second person on the ground uses a hose or a spray bottle to wet the outside and inside of the model's wheels. After that, drive the machinery in a complete circle with the wheels turned to the maximum angle. Repeat the procedure once and if necessary, continue to wet the wheels.
Once this measurement test has been accomplished, measure the watermarks left by the tires with a tape measure, 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 opposite side of the circle. The inside turning diameter can be determined by stretching the tape measure across the circle left by the interior tires. Then, divide these numbers in 2 to be able to determine the turning radius. Be certain to note that the turning center is the midpoint of the diameter of the circle.
In order to establish the wall-to-wall turning diameter, drop a plumb line from the extreme outside radial extension on the machinery. After this is completed, the next step is to locate the point on the pavement directly underneath. This point to the turning center indicates the clearance radius of the equipment. As a rule, wall-to-wall turning diameter is twice the vehicle clearance radius.