I have a pneumatic tire Clark forklift with no brakes. Both the brake and inching pedal go to the floor. I opened the bleeders on the front of the forklift, power bled the system and got nothing to come out. The small tank in the front/middle has a bleeder, that opened and bled nice, then there was a heavy leak behind the left tire. I assume there is some sort of wheel cylinder behind the tire, drum, etc. What on earth do they look like? Part numbers? Anything? I don't want to tear into it without having the part to swap in. I figure I would do both sides while I'm in there. I have an operators manual, which is about 200 pages, but does NOT show a wheel cylinder in the brake system diagrams.