Patent ID: 6182634
Filing Date: 2001-02-06
Classification: F02D

Abstract:
A work machine having an engine producing a rotational speed between a preselected low idle range and a preselected high idle range, an electrical power source, means for generating signals commensurate with rotational speed of the engine (RPM), and a tachometer for providing visual indication of the RPM, comprising:at least one device operatively associated with the work machine, the at least one device producing a power output measurable between a plurality of levels;a controller in communication with the tachometer and being responsive to the RPM signal when the engine is at a first specified RPM within the preselected low idle range, the controller converting the RPM signal to an electrical signal;a relay located in line between the controller and the at least one device, the relay being responsive to the electrical signal from the controller for automatically switching the at least one device from a first power output level to a second power output level that is lower than the first power output level.