Son just bought a 2006 Bobcat T190. First week ran 8 hours a day. Now runs great for about an hour, then all of a sudden the tracks lockup. Travel levers are hard to push. Will drag motor rpm down and stall out if you push hard on the levers. If he jerks the levers around back and forth, something seems to pop loose, then he is ok to go again... might last 5 seconds or 5 minutes then do it again. Seems to run o.k. for the first hour. I don't have a manual yet, trying to figure out if this is solenoid (electrical), solenoid spool, hydraulic spool, or other. We did change the hydraulic oil after this happened, and it still occurred the next time he ran it.. Other than that, its a great machine.
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