Abstract: A power machine or excavator includes a swivel assembly coupling the upper frame portion to the lower frame portion, while providing accurate slew position measurement using a swivel sensor which is positioned to reduce measurement errors over a thermal range of operation of the power machine. The swivel assembly includes a swivel barrel configured to be attached to the lower frame portion of the power machine, and a swivel spool configured to be attached to the upper frame portion. The swivel sensor is positioned and configured to provide a sensor output indicative of a rotational position of the upper frame portion relative to the lower frame portion.

Abstract: Disclosed are mountable sensor apparatus configured to measure a rotational speed of an axle of a power machine, as well as power machines including the sensor apparatus. The apparatus includes an encoder bearing sensor comprising an inner race configured to be secured to the axle of the power machine, an outer race, and bearings positioned between the inner race and the outer race and configured to allow rotation of the inner race relative to the outer race. A bearing carrier of the apparatus is connected to the outer race of the encoder bearing sensor, and a bracket is connected to the bearing carrier and mountable to a support structure of the power machine to prevent the bearing carrier and the outer race from rotating with the inner race and the axle. A sensor output line provides output signals indicative of rotational speed and direction of the axle.

Abstract: A power machine or excavator includes a swivel assembly coupling the upper frame portion to the lower frame portion, while providing accurate slew position measurement using a swivel sensor which is positioned to reduce measurement errors over a thermal range of operation of the power machine. The swivel assembly includes a swivel barrel configured to be attached to the lower frame portion of the power machine, and a swivel spool configured to be attached to the upper frame portion. The swivel sensor is positioned and configured to provide a sensor output indicative of a rotational position of the upper frame portion relative to the lower frame portion.

Abstract: Disclosed are mountable sensor apparatus configured to measure a rotational speed of an axle of a power machine, as well as power machines including the sensor apparatus. The apparatus includes an encoder bearing sensor comprising an inner race configured to be secured to the axle of the power machine, an outer race, and bearings positioned between the inner race and the outer race and configured to allow rotation of the inner race relative to the outer race. A bearing carrier of the apparatus is connected to the outer race of the encoder bearing sensor, and a bracket is connected to the bearing carrier and mountable to a support structure of the power machine to prevent the bearing carrier and the outer race from rotating with the inner race and the axle. A sensor output line provides output signals indicative of rotational speed and direction of the axle.

Abstract: Disclosed are mowers having a mower deck and a suspension system which couples the mower deck to a mower frame. The suspension system includes an actuator coupled to the mower frame, and a mechanical translation system coupled between the actuator and the mower deck. The mechanical translations system is configured to translate actuation positions of the actuator to height positions of the mower deck. A mechanical operator input is coupled to the mechanical translation system, and the translation system is further configured to allow height positions of the mower deck to be temporarily raised by actuation of the mechanical operator input, without further actuation of the actuator, so that frequently encountered obstacles can be quickly avoided without delays required to raise the mower deck with the actuator.