Have a 580 k that keeps using service brake oil but have no external leaks. could the actuator be leaking by the piston into the brake its self. Is it a wet brake or dry.
Wet. Does your four-speed shifter come up through the floor, or is it on the right fender? Whatever you do, don't use brake fluid, use hydraulic oil.
am using hyd oil shifter comes up through the floor
Ok, a 580k phase 1, then. If you are losing oil from master cylinders, and have no external leaks, it is going into your rear end. Here is a parts breakdown, it will give you somewhere to start. You would probably do well to start a new thread called "580k brakes" or something, and more people would help. https://partstore.casece.com/us/parts-search.html#epc::mr54945ag42674
Welcome to HEF, Lynn ! I can email you the brake service pages from the service manual. Send me your email address in a private conversation. Don't post it here. You could get buried in spam as a result !
I was hoping you'd see this, Tink. I have it in electronic form for a phase 3, but not a phase 1.
I have a service manual that covers all of it. where is a good place to get the seals to rebuild the cylinders. I found a single kit on Amazon for $75.00 which is completely out of reason for 3 o rings and 2 back up seals.
Call Dale Wiess. He sells Bulldog branded kits and he will be cheaper than anyone. http://e-backhoeparts.com/