I have a 1990 John Deere 750B LGP with around 9,000 hours on it. We use in on our farm for clearing brush and building terraces. It has a strong motor and we put a new undercarriage on it 200 hours ago.
I have a problem with the left side tracks not moving. When using it this weekend, the left side tracks would not respond to the controls after using it around 3 hours. It did this a couple of times in 30 minutes. Then, I started to smell a hot/burning smell. I started tracking it back to the shed and the left track would not move much at all. I had to use the right brake to make it go straight. Finally the left track quit moving all together. The machine started to give off white smoke from under the seat. The machine was leaking oil by the hydrostat, but only lost about 2 quarts or so of oil. I went back to the machine about 6 hours later. I wanted it to cool off. The machine started up fine, as I expected it would. But, when you try to move the machine it bogs itself down and the left track will not move. It will only spin a circle as the left track will not move. The right side works fine.
Any ideas what this might be or where to start looking to trouble shoot the problem?
I have a problem with the left side tracks not moving. When using it this weekend, the left side tracks would not respond to the controls after using it around 3 hours. It did this a couple of times in 30 minutes. Then, I started to smell a hot/burning smell. I started tracking it back to the shed and the left track would not move much at all. I had to use the right brake to make it go straight. Finally the left track quit moving all together. The machine started to give off white smoke from under the seat. The machine was leaking oil by the hydrostat, but only lost about 2 quarts or so of oil. I went back to the machine about 6 hours later. I wanted it to cool off. The machine started up fine, as I expected it would. But, when you try to move the machine it bogs itself down and the left track will not move. It will only spin a circle as the left track will not move. The right side works fine.
Any ideas what this might be or where to start looking to trouble shoot the problem?
John Deere 750B LGP Hydrostat or Final Drive problem???
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