hi guys, i have a fairly new to me bobcat S250 that i bought used. how can i tell if i have a 2 speed trans IF the switch on the right handle isn't working? in other words i'm wondering if my machine has a 2 speed trans and that maybe the "solenoid" or switch to activate it doesn't work...how would i know? tia, steve ps...does anyone know if a 2 speed trans is a straight bolt in replacing the single speed ?