The points I have shown are only a part of pbls... Meantime, battery was replaced two times due wrong analysis made by oficial country TYM representative (note that Iエm not in USA but Europe where waranty laws are more tight and we are forced to use titles (like cars) on tractors allowing to drive on roads. I was saying wrong analysis because failing to start engine was missing batterie minus cable to engine block. Without electrical minus connection, the power was conducted through rubber engine blocks which conductivity is limited and temporary and major issued is to conduct static electricity generated by engine moving parts not 400Amp pick for starting.
Also too high engine vibrations causing exaust muffler to break, at neck level, after 5 hours usage. Bizarre!!! Once replaced by new model Tym P/N 13151035001 pbl was solved but not completly, as vibrations are still there due to wrong fix point of exaust tip attached to tractor frame and not engine block.
Concerning HST adjust you are correct but under guarrantie periode it is strictly forbidden to perform any type of touch. I have full piece part catalogue so I can explain what is the pbl -thanks anyway for your link(if you need some other from me just ask)-part 27 arme/cam concave part side was damaged not allowing roller ball (19) be housed on concave. (this adjust is critical and needs to be replaced in full instead of been refibushed with grinder. So, this is the heart of pbl for which Tym does not have spare parts in Europe
Another issued is that TYM is selling odl tractor built 2006 as brand new like manuf in 2008 - this the 2nd case I know-my case and another reported in this forum. It is not a honest business.