The turning radius on a lift truck is also referred to as the turning circle. This information is important for a machine driver to have. It gives the operator the information of how much space is needed to turn the forklift around. For instance, a tighter turning radius enables the machine to successfully work in restricted places and crowded areas, therefore enhancing the lift truck's maneuverability. Drivers who do not know this measurement may cause damage to the property or to the equipment.
Make the necessary steering geometry alignment corrections prior to checking the turning radius. The test should begin with an operator trainer assisting in the cab where they could assist to control the equipment's functions. Another 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 machine in a complete circle with the wheels turned to the maximum angle. Repeat the procedure once and continue if necessary to wet the wheels.
After this measurement test has been completed, measure the watermarks left by the tires using a tape measure, from the midpoint of the tire mark 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. The inside turning diameter could be established by stretching the tape measure across the circle left by the interior tires. Next, 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.
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 locate 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 twice the equipment clearance radius.