I moved your thread here (Lawn and Garden Tractors By Brand / John Deere Forum) so hopefully you could get help faster. :Welcome1: We are glad to have you. There are many friendly and knowledgeable folks here at MTF, so enjoy all the different forums. Click on ”Active Topics” near the top left of the page for all the latest activity. You can also register with other members from your state by clicking here:
It is normal foer it to feel loose. My 165 is the same way. You just move it out of the notch and where you want it and it should be fine. All it does is control how far the deck goes down when you lower it.