74 05-7177-00.fmMaintenance and Servicing3. Turn off the machine.4. Remove the drain hose from the holder. Push the suction hose Fig. 32-Aslightly to the side so that the waste water tank can be emptied fully via thedrain hose.5. Bend the squeeze nozzle in the front section Fig. 32-B.6. Remove the cap Fig. 32-C.7. Return the drain hose to its original position Fig. 32-D and empty the wastewater tank fully.8. After emptying the tank, seal the drain hose with the cap.5.5.2 Cleaning the waste water tankClean the waste water tank daily or as required.1. Empty the waste water tank, see section 5.5.1.The drain hose with open cap remains positioned at the drain in the ground.2. Open the tank cap Fig. 33-A of the waste water tank.• Put one hand in the recessed grip Fig. 33-B of the tank cap.• Open the tank cap until the support Fig. 33-C engages.3. Clean the waste water tank thoroughly with the water hose.4. Also flush the drain hose.5. Close the tank cap:• Put one hand into the recessed grip Fig. 33-A and open the tank cap alittle further.• Unlock the support Fig. 33-B with your left hand and close the tank cap.5.5.3 Coarse dirt sieve (option)A coarse dirt sieve Fig. 31-18 is optionally located in the waste water tank.Clean the sieve daily or as required.BACFig. 33:16