Hi, I am currently looking at a used 318D skid steer, the owner doesn't know much about it and I am trying to find out if its 2 speed or not. It does have the trigger on the left control, but doesn't seem to do anything, the horn on the left control doesn't work either. So my question is, is it possibly 2 speed and the fuses to the left control might be blown or is it simply a 1 speed. Any easy way to find out? I have sent the serial number to the local dealer but they weren't able to tell from the coding either... Thanks,