The drive release valve allows free hydraulic oil flow between all four hydraulic drive motors – this means the machine does not leave any marks at all on the ground when turning. This is useful if you are working a lot on lawns and similar sensitive surfaces.
The drive release valve can also be understood as a diff lock release. With this option you can switch the diff lock off and without the option it is always on.
* Drive release valve as standard in the 200, 500, 600 and 700 series.