Marson directions
 

Years ago I came across a Marson Big Daddy rivet tool, the kind you use for window regulator rivets, after the "flat rate genious ones", that were at this dealer I worked at threw it in the trash. They had a mandrel stuck in it and couldn't get it out. I am looking for directions for it, as it works fine, but I don't use it that often and would like to know the proper way to adjust the tension on the pulling jaws.that grab the mandrel in the rivet. Thanks, John Kissel K242