HT220 Operator’s Manual Controls - 29 Center Console Trenching Controls 1. Conveyor shift control 7. Stabilizer control 2. Conveyor direction control 8. Auto stabilizer control 3. Conveyor control (truck option) 4. Conveyor speed control (truck option) 9. Boom lift control 10. Cruise control set control 5. Conveyor speed control 11. Trencher drive control 6. Trench cleaner control CMW Item Description Notes To shift left, move to up position. To shift right, move to down position.