The lift truck's turning radius is also referred to as the turning circle, that is vital information for the operator to have. It gives the driver the knowledge of how much space is needed to turn the forklift around. Like for instance, a tighter turning radius enables the machine to function successfully in restricted places and congested areas, thus enhancing the maneuverability of the lift truck. Operators who do not know this measurement may cause damage to the property or to the machine.
Make the necessary steering geometry alignment corrections prior to checking the turning radius. The test should start with an operator trainer assisting inside the cab where they can assist to control the machine's functions. A second person on the ground uses a hose or a spray bottle to wet the inside and outside of the model's wheels. Then, drive the machine 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 with a tape measure when your measurement test has been completed. The watermark test starts from the tire mark's midpoint 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 opposite side of the circle. The inside turning diameter can be determined 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 certain to note that the turning center is the midpoint of the circle's diameter.
To be able 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 find the point on the pavement directly underneath. This point to the turning center indicates the vehicle clearance radius. As a rule, wall-to-wall turning diameter is two times the clearance radius of the vehicle.