hey, is there a common problem with the 2 speed not working on these models that i could look for? the switch itself is good put the meter on that. but is there a relay or a solenoid i can test? bought the machine without it working, do all 287B's have 2 speed?? the sticker in the window says it does and it has a trigger and a rabbit light on the upper right console so im guessing it does(just so im not chasing my tail) . and suggestions?