Power machines, power sources for power machines, and methods which provide a hydraulic signal from a hydraulic system, through the swivel joint or swivel, to control a tensioning cylinder coupled to the undercarriage without requiring a modification to the swivel. In exemplary embodiments, the same hydraulic signal provided to at least one other hydraulic component on the undercarriage to control another machine function is also provided to control one or more tensioning cylinders. For example, exemplary disclosed embodiments provide the same hydraulic signal to tension a tensioning cylinder as is provided to shift one or more two-speed drive motors. This prevents or reduces the likelihood of de-tracking without requiring a change or redesign of the swivel.

A vehicle platform comprises a central body that can support one or more implement configurations, such as sprayer booms, or planting row units. A plurality of adjustable legs extends downward from the central body. An arm assembly has a first end and a second end opposite the first end. The first end is pivotably coupled the central body and the second end coupled to a support beam. A plurality of nozzle assemblies is supported from the support beam. An arm actuator is arranged to control a transverse position of the support beam and the nozzle assemblies with respect to a reference point on the central body, such that each nozzle assembly may be aligned with a row of seeds or plants.

Track assemblies for power machines include a track frame, including a primary portion and a second portion moveable with respect to the primary portion. A plurality of rollers are positioned along the primary portion of the track frame relative to each other and the center of gravity of the power machine to provide an improved capability to compensate for vibration generated as the power machine moves over a support surface. In some aspects, a portion of a tensioning idler is positioned within a cylinder defined by one of the plurality of rollers.

A track system comprising a dynamic tensioning device located between an idler wheel and the support frame as to apply proper tension in the track. The dynamic tensioning device is adapted to block at its current length upon the occurrence of a determined condition. The dynamic tensioner is adapted to substantially maintain its length when an acceleration and or deceleration of the track system reaches a predetermined value. For instance, such characteristic is relevant in an event of emergency braking. A dynamic tensioner would become contracted and the tension in the endless track would become too low. A low tension could cause the endless track to ratchet.

A track system for traction of a vehicle (e.g., an all-terrain vehicle (ATV), an agricultural vehicle, etc.) may be designed (e.g., may comprise non-pneumatic tires) to enhance its use or performance and/or that of the vehicle such as, for example, by being lightweight and/or by better handling loads, including, for instance, those resulting from track tension within the track system and/or from unevenness or other aspects of the ground, including encounters (e.g., impacts) with obstacles on the ground (e.g., rocks, portions of trees, debris, bumps, abrupt changes in ground level, etc.). The track system may comprise tension-based non-pneumatic tires.

An agricultural vehicle has a chassis with a drivetrain and at least one rubber track assembly with a rubber track belt. The rubber track assembly has at least one idler, each of which has two idler wheels spaced apart on an axle. The idler wheels each have a tapered outer surface that together define a tapered profile that causes the rubber track belt to self-center upon the rubber track assembly. The tapered profile may define a pair of straight lines at a shallow angle, a portion of a circle, a portion of an ellipse, a parabola, or a hyperbola.

Provided are a system and method for monitoring tension of a track. The track tension monitoring method of determining whether tension of tracks constituting an undercarriage module, which is an undercarriage of caterpillar track equipment, is abnormal includes, when tracks are in a dynamic state, entering an abnormality determination mode for determining whether the tracks are in excessive tension or low tension, and determining, in the abnormality determination mode, whether track tension is abnormal by measuring the track tension when the tracks make a turn, when the tracks are impacted, or when the caterpillar track equipment operates.

Endless track system tensioning system comprising: Tensioner having a cylinder and a piston within the cylinder forming a variable volume chamber containing liquid. Reservoir containing liquid and gas fluidly connected to the cylinder chamber. Conduit fluidly connected between the chamber and the reservoir allowing liquid to flow therebetween to move a position of the piston. The gas applying hydrostatic pressure to liquid biasing the piston toward an extended position, biasing an idler wheel assembly against an endless track. Valve disposed along the conduit for controlling liquid flow through the conduit, movable between: Open position in which liquid is allowed to flow, rendering piston movable, allowing for relative movement between a frame and an idler wheel assembly. Closed position in which liquid is prevented from flowing rendering piston effectively immovable within the chamber, effectively preventing relative movement between frame and idler wheel assembly.

A track system comprising a dynamic tensioning device located between an idler wheel and the support frame as to apply proper tension in the track. The dynamic tensioning device is adapted to block at its current length upon the occurrence of a determined condition. The dynamic tensioner is adapted to substantially maintain its length when an acceleration and or deceleration of the track system reaches a predetermined value. For instance, such characteristic is relevant in an event of emergency braking. A dynamic tensioner would become contracted and the tension in the endless track would become too low. A low tension could cause the endless track to ratchet.

A tracked vehicle with a chassis comprising an upper frame structure connected to a lower frame structure, the lower frame structure spanning a longitudinal distance along a longitudinal direction of the vehicle, wherein over a first portion of the longitudinal distance, the lower frame structure overlaps with the upper frame structure and wherein over a second portion of the longitudinal distance, the lower frame structure does not overlap with the upper frame structure. The tracked vehicle may also comprise an operator cabin, power plant mounted to the upper frame structure and a plurality of track assemblies for traction of the tracked vehicle. Each track assembly is o mounted to the lower frame structure of the chassis and comprises a drive wheel; an end wheel; and a plurality of support wheels therebetween; and an endless track disposed around the plurality of wheels for engaging a ground on which the tracked vehicle travels.