The lift truck's turning radius is also referred to as the turning circle, which is important information for the operator to have. It gives the driver the information of how much space is required to turn the forklift around. Like for example, a tighter turning radius enables the machine to successfully function in tight places and crowded areas, therefore improving the maneuverability of the lift truck. Drivers who do not know this measurement can cause damage to the machinery or to the property.
Prior to checking the turning radius, check the steering geometry alignment and correct it if it requires adjustment. Begin the test with having the trained driver inside the cab to control the machine's functions. A second person on the ground utilizes a spray bottle or a hose to wet the inside and outside of the unit's wheels. Then, 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 completed. The watermark test starts 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. The inside turning diameter can be determined by stretching the tape measure across the circle left by the interior tires. After that, divide these numbers in 2 in order to determine the turning radius. Be certain to note that the turning center is the midpoint of the diameter of the circle.
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 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 machinery clearance radius.