i have a bad hydraulic leak. i found where the leak is coming from. i think i have a bad o-ring on whatever it is that is on the left side when you're looking down into the machine after you lift the cab. my problem is i cannot get the allen screws broken loose. is there a trick to it? i am having to look in a mirror just to get the allen wrench into the screw head but i can't get enough leverage to break it loose. i have tried box end wrench for leverage and even that didn't work. not alot of room in there to work. any help will be greatly appreciated.