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Enthusiastic Bobcat 720 long time owner/operator
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<blockquote data-quote="j-jock" data-source="post: 121702" data-attributes="member: 11081"><p>Welcome to the forum. I am also the proud long term owner of a 720, but I bought mine with the Wisconson engine in a basket. I swapped in a 1600 engine from a 67 Ford Cortina, and have been using this combination since 1985.</p><p>Your final drive problem could be a serious issue, but it could also be as simple as contamination of your main hydraulic, or your bypass filter. It would be a prudent first step, to change both the filters, and cut them open for evidence of metal particles or contamination.</p><p>There are links on the forum to the shop service manual, and if you are going to work on the Bobcat yourself, it will be a necessary place to start, so that you understand how the hydraulic system works.</p><p>The fact that the lift and tilt are working, indicates that the problem is isolated to the drive system. If it is necessary to repair, or overhaul the the motor pumps, it is not that difficult, but you need to have a clean area to work. When I bought my machine, my pumps were in pieces, and I rebuilt the high pressure pump, the drive pump, and the motor pumps in my basement. The next thing, is before you start disassembling the machine, give it a thorough cleaning with a high pressure washer or steam cleaner. You will thank me later.</p><p>In short, it will not be that difficult to get your machine running again, so you can enjoy many more years of use with it. If you have a problem finding the Bobcat manuals for the 720, PM me, and I will forward them to you.</p><p>Good luck with getting it working again.</p><p>Bob</p></blockquote><p></p>
[QUOTE="j-jock, post: 121702, member: 11081"] Welcome to the forum. I am also the proud long term owner of a 720, but I bought mine with the Wisconson engine in a basket. I swapped in a 1600 engine from a 67 Ford Cortina, and have been using this combination since 1985. Your final drive problem could be a serious issue, but it could also be as simple as contamination of your main hydraulic, or your bypass filter. It would be a prudent first step, to change both the filters, and cut them open for evidence of metal particles or contamination. There are links on the forum to the shop service manual, and if you are going to work on the Bobcat yourself, it will be a necessary place to start, so that you understand how the hydraulic system works. The fact that the lift and tilt are working, indicates that the problem is isolated to the drive system. If it is necessary to repair, or overhaul the the motor pumps, it is not that difficult, but you need to have a clean area to work. When I bought my machine, my pumps were in pieces, and I rebuilt the high pressure pump, the drive pump, and the motor pumps in my basement. The next thing, is before you start disassembling the machine, give it a thorough cleaning with a high pressure washer or steam cleaner. You will thank me later. In short, it will not be that difficult to get your machine running again, so you can enjoy many more years of use with it. If you have a problem finding the Bobcat manuals for the 720, PM me, and I will forward them to you. Good luck with getting it working again. Bob [/QUOTE]
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