Abstract: A yard maintenance device having a working assembly selectively rotatable based on operation of an engine of the device may include a belt drive system. The belt drive system may include at least one driven pulley operably coupled to the working assembly, a drive shaft operably coupled to the engine, a drive belt configured to selectively couple the drive shaft to the at least one driven pulley, a tension adjustment assembly, and a control unit. The tension adjustment assembly may be configured to operably couple to at least one component of the belt drive system to adjust a position thereof to modify tension of the drive belt. The control unit may be configured to provide electronic control of the tension adjustment assembly.

Abstract: A lawn care device (10) may include a mobility assembly (42,44) configured to facilitate movement of the lawn care device over ground, a cutting deck (40) housing at least one blade, an engine (50) operably coupled to the at least one blade via a rotatable shaft to enable the at least one blade to cut vegetation responsive to rotation of the at least one blade, a control unit (110) configured to be in communication with at least one functional unit of the lawn care device, at least one sensor (142) disposed to monitor the at least one functional unit, a transmitter (144) operably coupled to the sensor to wirelessly transmit a signal from the sensor to the control unit based on operation of the at least one functional unit, and an energy harvester (146) configured to convert energy from a source of origin into electrical energy, the electrical energy being employed for powering the at least one sensor and the transmitter.

Abstract: A lawn care device may include an engine to selectively power the device, a frame supporting the engine and an operator of the device, and an ignition interface having processing circuitry configured to define a plurality of operating modes. The operating modes may include at least a starting mode in which the ignition interface is usable by the operator to start the engine, and a running mode in which the engine is running. The ignition interface may include code entry keys configured to, responsive to entry of a code via the code entry keys, enable use of the ignition interface to shift from the starting mode to the running mode without a physical starting key.

Abstract: A lawn care device may include a cutting deck housing at least one blade, an engine configured to selectively provide for rotation of the at least one blade responsive to selective coupling of the rotary power of the engine to the at least one blade via a power takeoff (PTO) clutch, and a PTO switch that is operable in two directions to engage or disengage the PTO clutch based on which one of the two directions the PTO switch is moved by a user. The PTO switch may be biased to return to a neutral position after each operation thereof. The PTO switch may be configured to perform at least one additional operational function responsive to sequential operation of the PTO switch in at least one of the two directions.

Abstract: A riding lawn mower is provided with an electrical system. The electrical system includes a control module, transceiver modules, and a wiring system. The control module allows for programmably controlling electrical operations of the riding lawn mower. The transceiver modules are operably connected with respective devices of the riding lawn mower so as to communicate data between the respective devices and the control module. The wiring system comprising wires that electrically connect the transceiver modules with the control module/The wiring system includes a power wire that provide electrical power to the transceiver modules from the battery; and a data bus comprising a data wire that transmits data between the control module and the transceiver modules.