I have a 99 John Deere 160-LC and the swing brake won't release consistenly. We pulled the cross port relief valves and checked for trash with no luck. Start it up and it may rotate correctly for hours, a couple of minutes or just move left/right once. I have a strong back but a weak mind when it comes to troubleshooting these. I do have the service manuals but am not 100% sure what where I should be looking at next. Any help would be greatly appreciated.
Wish I could help. I don't have a clue either. I've Kinda been looking at this model hoe. Was just curious what the fix is. Good luck. 45 views and no help yet. That's discouraging. I'm sure someone will chime in!! Good luck