The forklift's turning radius is also called the turning circle, which is essential information for the driver to have. It gives the driver the information of how much space is needed to turn the lift truck around. Like for example, a tighter turning radius enables the machine to successfully operate in restricted places and crowded areas, thus improving the maneuverability of the forklift. Operators who are not aware of this measurement could cause damage to the machinery or to the property.
Make the necessary steering geometry alignment corrections prior to testing the turning radius. The test should start with an operator trainer assisting inside the cab where they could assist to control the equipment's functions. Another individual on the ground utilizes a hose or a spray bottle to wet the inside and outside of the unit's wheels. After that, drive the equipment in a whole circle with the wheels turned to the maximum angle. Repeat the process once and if necessary, continue to wet the wheels.
Once this measurement test has been done, measure the watermarks left by the tires with 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 exterior tires from the circle's one side to the circle's opposite side. 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 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 establish the wall-to-wall turning diameter. When this is done, next find the point on the pavement directly below. This point to the turning center indicates the vehicle clearance radius. As a rule, wall-to-wall turning diameter is two times the vehicle clearance radius.