The old system used six cables to drive the tracks. Now we do that with ... Schuermann, Ditch Witch: To make walk-behind trenchers more durable, hydraulic circuits are being simplified and ...

says Ditch Witch’s Kukuk. “You may not see an air-filled tired trencher, other than maybe on a ride-on,” he says. Urethane tires and tracks mean less maintenance, since they don’t go flat ...