First time posting here..appreciate any help. Skid steer will intermittently lock the parking brake. Start machine press red button on left control stick....red parking light will go out, begin to move the machine and the red parking light will flicker and come back on. As it is doing this, the machine will start to slow down like the brakes are locking up and squealing, then it stops with no loader motion or forward or rear movement. I have traced all wires with a meter and all are good. It is my understanding that when you press the red button the signal is sent through a 10 amp fuse, then to a relay and then down to the "solenoid" to allow the machine to move...have looked at and traced all these wires to no avail. PLEASE HELP! Thanks in advance..