The forklift's turning radius is also referred to as the turning circle, which is important information for the driver to have. It gives the driver the information of how much space is needed to turn the forklift around. For example, a tighter turning radius allows the machinery to operate successfully in crowded areas and restricted places, thus enhancing the forklift's maneuverability. Operators who do not know this measurement can cause damage to the machine or to the property.
Prior to testing the turning radius, check the steering geometry alignment and correct it if it needs adjustment. Start the test with having the trained operator in the cab to control the equipment's functions. Another person on the ground uses a spray bottle or a hose to wet the outside and inside of the unit's wheels. After that, drive the machinery in a whole circle with the wheels turned to the maximum angle. Repeat the procedure once and if necessary, continue to wet the wheels.
When this measurement test has been completed, measure the watermarks left by the tires using 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 exterior tires from one side of the circle to the opposite side of the circle. You could establish the inside turning radius by stretching the tape measure across the circle left by the inner tires. Then, divide these numbers in 2 to be able to establish the turning radius. Be certain to note that the turning center is the midpoint of the circle's diameter.
In order to establish the wall-to-wall turning diameter, drop a plumb line from the extreme outside radial extension on the machine. After this is completed, the next step is to find the point on the pavement directly beneath. This point to the turning center indicates the clearance radius of the vehicle. As a rule, wall-to-wall turning diameter is two times the machine clearance radius.