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Bugs
05-07-2008 20:42:31
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Re: 350 JD Dozer -Track locks up in reply to Jim Horrocks, 05-05-2008 19:32:47
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Lets be a little more specific. Are you going up hill, down hill, or perpendicular to the hill? Assuming you are running perpendicular, up hill or down hill track? Does this only happen on hills? Does it do this on both sides? If your are on level grade, going backwards, cut machine hard at right angle then go forward does it do it? You say there is 100 hours on the undercarriage. How many hours on the drive sprocket? How many hours on the pins and bushings, which hold the track links together? Were the bushings replaced or turned? Is the track frames securely mounted to front crossbar,and aligned at rear crossbar? On 350B, where track frame bolts to front crossbar, they were designed to float. Don't know about 350, but if they also float, if the bushing are wore-out it is hard to keep anything aligned. Alignment is done at the rear crossbar. If aligned properly, but bar, or brackets, or caps securing crossbar, are worn bad, tracks will wander in and out of alignment. This will usually be the problem if you notice sprockets have been rubbing on inside of back bottom rollers. Are the tracks adjusted properly? Your problem has all the symptons of sprocket climbing on bushing, or more likely the track rail.
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