A traction assist system and method for heavy equipment on an incline or in other situations with poor or limited traction. In particular, a traction assist system for heavy equipment having an accessory such as a blade, the system including: a tether; an adaptation to the accessory allowing the tether to be placed to allow the accessory to function without disrupting the tether, such as through-holes in the blade; and an attachment point on the heavy equipment for attaching the tether to the heavy equipment. The adaptation will depend on the particular accessory involved but may generally be an adaptation allowing the tether to pass through the accessory.

One or more information maps are obtained by an agricultural work machine. The one or more information maps map one or more agricultural characteristic values at different geographic locations of a field. An in-situ sensor on the agricultural work machine senses an agricultural characteristic as the agricultural work machine moves through the field. A predictive map generator generates a predictive map that predicts a predictive agricultural characteristic at different locations in the field based on a relationship between the values in the one or more information maps and the agricultural characteristic sensed by the in-situ sensor. The predictive map can be output and used in automated machine control.

A rotary mechanism comprises a fastener and a tone wheel. The tone wheel comprises a first radial flange, a second radial flange, a first target, and a second target. The first and second targets mounted respectively to the first and second radial flanges to be sensed by a sensor. Each of the first radial flange and the second radial flange comprises a plurality of mounting points, the plurality of mounting points of the first radial flange and the second radial flange provided for adjustment of a diameter of the tone wheel. The fastener is provided to mount the first radial flange and the second radial flange to a shaft at a selected mounting point among the plurality of mounting points of each of the first radial flange and the second radial flange to set the diameter of the tone wheel. An associated method is disclosed.

A harvester power takeoff (PTO) clutch system includes a detachable PTO extension module and transmission gearbox housing, which has a clutch compartment and a clutch service port through which the clutch compartment can be accessed. A PTO clutch is disposed in the clutch compartment, while a clutch shaft extends from the PTO clutch and projects from the clutch compartment through the clutch service port. The detachable PTO extension module includes, in turn: a PTO housing extension mounted to the transmission gearbox housing; a PTO shaft rotatably coupled to the PTO clutch and projecting from the PTO housing extension in a direction opposite the transmission gearbox housing; an inner extension bearing disposed in the PTO housing extension and rotatably supporting the clutch shaft; and an outer extension bearing further disposed in the PTO housing extension and rotatably supporting the PTO shaft.

Provided is a combine with a speed-change power transmission apparatus including: a hydraulic static continuously variable transmission unit that receives an input of drive force from an engine, and subjects the drive force to speed change; and a planetary power transmission unit that combines the drive force from the engine and an output from the continuously variable transmission unit and outputs a combined drive force to a travelling apparatus, wherein a power transmission case can be made lighter at low cost. In this combine, a continuously variable transmission case portion of a power transmission case, which houses a continuously variable transmission unit, is formed integrally with a planetary power transmission case portion of the power transmission case, which houses a planetary power transmission unit. A partition that separates a continuously variable transmission compartment of the continuously variable transmission case portion and a planetary power transmission compartment of the planetary power transmission case portion from each other is provided within the power transmission case, the continuously variable transmission compartment housing the continuously variable transmission unit, and the planetary power transmission compartment housing the planetary power transmission unit.

A vehicle includes a frame, at least one traction device coupled to the frame for facilitating movement of the vehicle, an implement coupled to the frame and configured to perform a work operation, a gearbox, a hydraulic system having a hydraulic reservoir, and an oil cooling system configured to cool the gearbox and the hydraulic system. The oil cooling system includes first and second circuits for a cooling oil, and a crossover circuit. The first circuit includes the gearbox and a first oil-to-air cooler configured to cool the cooling oil from the gearbox. The second circuit includes the hydraulic reservoir and a second oil-to-air cooler for cooling the cooling oil from the hydraulic reservoir. The crossover circuit includes the gearbox and the hydraulic reservoir and is configured to exchange the cooling oil between the gearbox and the hydraulic reservoir to provide heat transfer between the first and second circuits.

A transmission structure of the present invention causes, during a period from a time point when a rotational speed of a drive rotational power reaches a predetermined first/second speed stage shift-up start speed until a first/second speed stage shift-up end time point, one of an input-side clutch mechanism pair and an output-side clutch mechanism pair to be in a double transmitting state, and causes, in the double transmitting state, a first clutch mechanism and a second clutch mechanism of the other one of the input-side clutch mechanism pair and the output-side clutch mechanism pair to be shifted to a disengagement sate and an engagement state, respectively, while having frictional plate slid.

Throttle control apparatus (810) for a vehicle and a mechanism (800) thereof is provided. A throttle control mechanism (800) includes a first throttle control assembly (802), a second throttle control assembly (804), a first cable (806), a second cable (808), a throttle control apparatus (810), a linkage (812) and a mounting bracket (814). The throttle control apparatus (810) includes a shaft housing (810), a pivot shaft, an intermediate lever (810L) and a lever (810R). The intermediate lever (810L) has a first portion (810Lf) defining a slot (810La) and a second portion (810Ls) defining a slot (810Lb). A first end (806f) of first cable (806) is connected to first throttle control assembly (802) and a second end (806s) of first cable (806) is movably connected to intermediate lever (810L). A first end (808f) of second cable (808) is connected to second throttle control assembly (804) and a second end (808s) of the second cable (808) is movably connected to intermediate lever (810L).

An HST of the present invention includes a main plate and a sub-plate supporting a center section, a pump-side swash plate holder and a motor-side swash plate holder by their inner surfaces facing each other. The main plate is provided with an extended region that extends farther outward in a planar direction of the main plate than an installation space of the center section, the pump-side swash plate holder and the motor-side swash plate holder and than the sub-plate as viewed along a direction in which the main plate and the sub-plate face each other.

A method of adjusting a hydraulic drive system includes determining a forward park position value, a reverse park position value, an initial forward position value, and an initial reverse position value of a control device and using these values to calculate a forward buffer value and a reverse buffer value. The forward buffer value and the reverse buffer value are used to determine an adjustment amount for the drive system. The adjustment amount can be used to properly adjust a drive system to avoid system errors.