Hi codeman, and a warm welcome to the OutdoorKing forum. Its great to have another Scott Bonnar owner on board. We all like to learn new things and tinker here; so we hope you will feel right at home.
Once you post your pics, I may be able to give you some info, but scarifier's are mainly used by greenskeepers of golf courses and bowling clubs and contacting your local lawn bowling club and speaking to the greenskeeper may be of help to you with how to set it up etc.
Looking forward to seeing the pics, once again, codeman
