A track tension actuator is provided for a track assembly having, an idler wheel, a drive wheel, a drive track entrained about the drive wheel and idler, and a hydraulic motor operable to advance the drive wheel. A drive circuit is operable to supply pressurized fluid to the hydraulic motor. The act
A track tension actuator is provided for a track assembly having, an idler wheel, a drive wheel, a drive track entrained about the drive wheel and idler, and a hydraulic motor operable to advance the drive wheel. A drive circuit is operable to supply pressurized fluid to the hydraulic motor. The actuator is coupled to the idler wheel, and includes a travel chamber, travel piston, a recoil chamber, and a recoil piston. The recoil chamber is pressurized to urge the recoil piston in a first direction away from the drive wheel. The drive fluid pressurizes the travel piston, which in turn contacts and urges the travel piston in a second direction against the recoil piston to reduce the track tension.
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A track tension actuator is provided for a track assembly having, an idler wheel, a drive wheel, a drive track entrained about the drive wheel and idler, and a hydraulic motor operable to advance the drive wheel. A drive circuit is operable to supply pressurized fluid to the hydraulic motor. The act
A track tension actuator is provided for a track assembly having, an idler wheel, a drive wheel, a drive track entrained about the drive wheel and idler, and a hydraulic motor operable to advance the drive wheel. A drive circuit is operable to supply pressurized fluid to the hydraulic motor. The actuator is coupled to the idler wheel, and includes a travel chamber, travel piston, a recoil chamber, and a recoil piston. The recoil chamber is pressurized to urge the recoil piston in a first direction away from the drive wheel. The drive fluid pressurizes the travel piston, which in turn contacts and urges the travel piston in a second direction against the recoil piston to reduce the track tension. er further having a plurality of elongated tubular extensions for attaching the wheel cover to the lug nuts of said wheel, each said elongated tubular extension having a plurality of slots extending axially from said wheel cover, said plurality of slots defining a plurality of cantilevered fingers adapted for engaging said flange of a respective lug nut to retain said wheel cover to said wheel, each said cantilevered finger having an bulbous portion for engaging said lug nut and for flexing said finger radially outward as said wheel cover moves axially towards said wheel, each said bulbous portion having an upper shoulder for engaging said flange of said lug nut thereby providing a positive axial location of said wheel cover to said wheel; a plurality of integral ribs extending axially from a rear face of said wheel cover, said plurality of ribs being disposed between said plurality of elongated tubular extensions; and a one-piece wire band retainer located by said plurality of ribs, said one-piece wire band retainer having a plurality of concave sections, each concave section aligned with a portion of a respective one of each of said elongated tubular extensions, said wi
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이 특허에 인용된 특허 (7)
Eftefield Larry G. (Edelstein IL), Booster recoil mechanism for endless track machine.
Miller Clifford E., Track tensioning assembly for adjusting tension on a drive track chain of a work machine having a slack adjuster device associated therewith.
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