Ok folks�.. Thanks in advance to all that have helped me up till now (mostly by reading the archives)Here is the issue: We have a 590CK Turbo. First�it sat in the woods for a while before I took possession of it. Since we got it, we have changed the Hydraulic oil and filter and cleaned transaxle screen, replaced filter and fluid. Engine is strong and reliable�all else operates fine. The trouble: It runs just great for a few minutes after starting. All operates as it is supposed to. Then after an arbitrary time period BOTH brake peddles get HARD as nails and the backhoe is effectively worthless. It will NOT roll...it appears that the brakes are stuck fast. You can full-throttle it and it will grudgingly move, but not till the throttol is wide open (bad, bad, bad). So we let it sit. After a few minutes of sitting, the brake peddles get a little looser and the hoe will begin to roll again, but still not fully freewheeling like it should. What I am thinking now is that I should do a flush and fill of the brake system and replace or rebuild the master cylinders in the hops that there is dirt in the lines causing the master cylinder pistons to operate improperly. I am looking for information or options as to the �real� problem. Any help would be wonderful. I am also looking for a place I can find decent rebuilt master cylinders for this beast. Thanks again for reading.
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