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Message: <blockquote data-quote="bz1bz1" data-source="post: 42549" data-attributes="member: 5407"><p>I have owned a 1200 for 15 years and have much experience with the 1200. As someone said earlier this machine has a variable sheave and belt instead of a hyrdraulic or gear transmission. In my experience when they groan and stop moving it's because the belt is slipping. You either need a new belt or the sheave and belt have gotten oil soaked and thus it slips. If you need a new belt you can get one from a Mustang dealer or buy an off the shelf inductrial belt that will replace the OEM belt. The one I use is a Dayco part number 513-226-7000 which is half the price of an OEM belt. If the belt is slipping because it has oil on it you will want to clean the belt and sheave and then check for the source of oil. I just use engine scour type cleaner to soak the belt and sheave and rinse with water. Try this first before replacing the belt unless the belt is obviously shot. The source of oil could be an engine leak such as the output shaft seal or more likely the rotary union that connects the speed control hydraulics to the variable sheave. If this needs replacing you can again go to the dealer or for less money just go buy the part at an industrial supply house. The union is made by Deublin, part number 1005-057-019. You can also try rebuiling the rotary union by taking it apart and replacing all the orings. Hope this helps.</p></blockquote><p></p>