Hi im new here, i have a JD 324j front loader, i have a problem with the parking brake. Only after fully warmed up, my parking brake will engage when taking off from a stop. Never locks up while parked, never locks up at higher speeds, only when i first go forward. But problem is intermittent, hard to duplicate. When it locks up, the indicator light on dash will turn on as if someone pressed the park brake switch. Tested the switch, no worn or damaged wires, pins look good, good resistance. I found old threads about low trans fluid can cause low pressure and will lock up park brake, but i believe this model uses hydraulic fluid, which is at a good level.
Welcome to HEF Mike ! Serial number please. Do any codes display in the monitor (in the hourmeter) when the issue occurs?
Is it the wet, sealed, parking brake unit like on my 544J machines. If so, it over full?
I'll check on serial number, no codes when it happens.
Is this the correct number you're looking for?
That is the axle serial number. I need the machine serial number. It will say John Deere and start with the letters "LU".