Abstract: A method for determining weight display thresholds for static and dynamic imbalances and correction weights on a rotating body such as a vehicle wheel assembly, which vary with parameters of the rotating body, wheel and/or tire, and for displaying measured imbalances in relation to determined imbalance thresholds.

Abstract: A method for providing a centering check for a rotating body mounted on a wheel balancer based on measuring at least one imbalance parameter. The rotating body is mounted on a spindle of the wheel balancer and an imbalance parameter or runout measurement taken. The mounting of the rotating body on the spindle is then altered, and a second measurement of the imbalance parameter or runout is taken. A processor in the wheel balancer determines if the difference between the first and second measurements exceeds a predetermined threshold value, indicative of off-center mounting of the rotating body one the spindle.

Abstract: A system is described for connecting a working tool (e.g. a bucket, compactor tool, chisel, etc.) to the outer end of a working arm of a machine. The system includes a pair of spaced-apart upstanding flanges secured to the upper surface of the tool. Each flange includes an elongated slot. A pair of inserts sized to fit in the elongated slots are detachably secured to the flanges. Each insert includes a pair of transverse openings to receive the pins which are used for attaching the tool to the machine. The system enables any tool to be connected to the end of a working arm of any machine.