Hi all, have been looking around the site the last few days and like what I see! I have just purchased my first skid steer, a 2007 Case 420 with 444 hrs on the meter. I have rented a brush cutter for a job I am doing tomorrow and have run into a problem. When I use the foot control to run the cutter and lock it on, the lock doesn't hold the pedal down far enough for the cutter to run properly. I just fades to a stop. So I see the three switches on the left hand joystick and try to activate it using those. Nothing happens. I read the owners manual and it describes the switches and what they do but not how to activate them. Am I missing something? Usually I'm pretty good at figuring things out but this has me stumped. Any help for a newbie greatly appreciated.