Okay, so I have adjusted the clevis on the Brake and also adjusted the parking break just in case. there appears to be free play in both. However, i have to note that the inching pedal didn't work until i recently replaced the inching valve. The next week was when I suddenly had the break locking problem. I find this a little more than coincidental since the inching pedal and breaks are related. Perhaps the inching clevis needs adjusting? In addition I removed and rebuild both the inching and break cylinders within the last month. Any insight involving this new information and how to pinpoint my problem would be helpful. I am handy but my knowledge of this system is minimal and I find out most of what I learn from you guys or trial and error....mostly the latter. LOL