Hey Guys! I'm hoping ya'll can help me out, I have a 642b that doesn't have the aux lines run on the boom, I have lines but before I go thru the trouble of running them I wanna make sure everything else is there. I read about having to remove a bolt to engage the aux but I can't find it. I have the rops up right now and can take pics if anyone would be willing to pin point exactly which bolt I have to remove. Also there is a center pedal on this machine, it was kind of stuck in the down position, with the rops up I was able to move the linkage but it doesn't "spring return"...what is this pedal for? PLEASE help the new guy...I would really like to put a plow on this machine and be able to angle the blade. Thanks in advance!