I have a M6040 with the industrial tires and recently purchased the lienbach 7300 auger for some post holes I need to dig. The problem is the tractor won't raise the auger high enough. I have tried every adjustment there is and it still won't work. Even contacted Lienbach and they sent the supposed high arch for the lift arms. Still doesn't raise it high enough. I think it is the same arch as the standard personally measured raise from ground is the same. Just wanting to know if anyone else has run into the same problem and how did you fix it if you have. Thanks Nathan