The lift truck's turning radius is also known as the turning circle, that is important information for the operator to have. It gives the driver the knowledge of how much space is required to turn the forklift around. Like for example, a tighter turning radius enables the machinery to work successfully in crowded areas and restricted places, thus improving the forklift's maneuverability. Drivers who are not aware of this measurement could cause damage to the property or to the equipment.
Make the necessary steering geometry alignment corrections before checking the turning radius. The test must begin with an operator trainer helping in the cab where they could assist to control the equipment's functions. A second individual on the ground uses a spray bottle or a hose to wet the inside and outside of the unit's wheels. Next, drive the machinery in a whole circle with the wheels turned to the maximum angle. Repeat the process once and continue if necessary to wet the wheels.
Measure the watermarks left by the tires utilizing a tape measure when your measurement test has been done. The watermark test starts 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 established by stretching the tape measure across the circle left by the interior tires. Next, divide these numbers in 2 to be able to establish the turning radius. Be sure 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 vehicle. After this is accomplished, 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 equipment. As a rule, wall-to-wall turning diameter is twice the clearance radius of the vehicle.