John Deere 240 Park brake

[pooldigger]

I have a 240 and the park brake engages when driving it. I have replaced the park brake switch,the seat belt switch and the seat switch. Once it is engaged it won't unengage until you press the switch several times and hear it release the brakes, in some cases you have to hold the switch down to move the skid steer. My instrument cluster shows the park brake light and seat belt light lit up all of the time. Any ideas?????? Thanks

 

[Tazza]

You replaced relays too?
I know on my bobcat, if the steering is not right or you are on a hill, it can put load on the brake making it hard to disengage unless you turn it off and move the steering sticks to release the pressure then it snaps off. Its not something simple like that is it?