The forklift's turning radius is also referred to as the turning circle, that is important information for the driver to have. It gives the operator the knowledge of how much space is required to turn the lift truck around. Like for example, a tighter turning radius enables the equipment to function successfully in congested areas and restricted places, thus enhancing the forklift's maneuverability. Operators who are not aware of this measurement can cause damage to the property or to the equipment.
Make the necessary steering geometry alignment corrections before testing the turning radius. The test should start with an operator trainer assisting inside the cab where they can help to control the equipment's functions. A second person on the ground uses a hose or a spray bottle to wet the inside and outside of the unit's wheels. Then, drive the machine in a whole circle with the wheels turned to the maximum angle. Repeat the procedure once and continue if necessary to wet the wheels.
Measure the watermarks left by the tires with a tape measure after your measurement test has been completed. The watermark test begins 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 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 inner tires. Next, divide these numbers in 2 in order to establish the turning radius. Be certain to note that the turning center is the midpoint of the circle's diameter.
In order to determine the wall-to-wall turning diameter, drop a plumb line from the extreme outside radial extension on the vehicle. After this is completed, the next step is to locate the point on the pavement directly below. This point to the turning center indicates the machine clearance radius. As a rule, wall-to-wall turning diameter is twice the equipment clearance radius.