Automatic four leg leveling for cold planers

摘要

A method for leveling of a machine on a surface, and a machine for the same, is disclosed. The method may comprise equalizing the legs of the machine prior to extending or retracting the legs of the machine to raise or lower the machine during non-milling operational status. The method may also comprise extending or retracting the legs during milling operational status while maintaining the relative lengths of each leg.

主权项

1. A method of controlling the leveling of a machine on a surface, the machine including a frame supported by a plurality of legs and at least one sideplate mounted to the frame, the plurality of legs including first and second front legs and first and second rear legs, the method comprising:
receiving by a controller a first lower signal during non-milling operation to retract the plurality of legs; determining the minimum initial leg length in the plurality of legs; substantially leveling the machine with respect to the surface by retracting some of the plurality of legs to the minimum initial leg length; and further retracting all of the plurality of legs to a retraction length that is less than the minimum initial leg length.