6 Maintenance
Changing the gearbox oil (ZF-Hurth) Every 400 operating hours.
22 28 Draining the oil Drain the oil with the aid of a separate sump pump.
29 Changing the oil filter Or, if sufficient space below the gearbox is available, oil can be drained by removing the drain plug.
• Remove the dipstick. • Insert the suction hose of the sump pump in the dipstick hole. Push down the pump handle quickly and pull it up slowly. • Remove the sump pump when all the old oil has been pumped out. 52
6
• Remove the fillercap to vent the gearbox and check if all oil has been drained • Collect the oil in a dripping pan.
• The filter element must be replaced at the same time as the oil. • Turn the screw that holds on the filter cover to the left and remove the filter from its housing. Use an Allen key for this.
