Caterpillar Inc.
VERTICAL IDLER ADJUSTER FOR UNDERCARRIAGE SYSTEM IN TRACK-TYPE MACHINE

Abstract:

A vertical idler adjuster includes a cam assembly having a cam supported in an adjuster frame for rotation about a cam axis, and an idler support surface having a vertical location that is adjusted relative to the adjuster frame when the cam is rotated. The cam assembly includes a screw linkage having a first set of teeth fixed to rotate with the cam, a drive shaft, and a second set of teeth on the drive shaft and in mesh with the first set of teeth such that rotation of the drive shaft rotates the cam to adjust a vertical position of an idler in an undercarriage system.