– 8 DANGERRisk of injury by inadvertent startup of ap-pliance and electrical shock.Prior to all work on the appliance, switch offthe appliance and pull the power plug.Note:Used oil must only be disposed of by thedesignated collection points. Please turn inused oil there. Polluting the environmentwith used oil is prosecutable.You can sign with your dealer a contract forregular safety inspection or even sign amaintenance contract. Please take adviceon this matter. Check connection cable for damages(risk of electrical shock); get the dam-aged connection cable replaced imme-diately by an authorised customer ser-vice person/ electrician. Check the high pressure hose for dam-ages (risk of bursting).Please arrange for the immediate ex-change of a damaged high-pressure hose. Check appliance (pump) for leaks.3 drops per minute are permitted andcan come out from the lower side of theappliance. Call Customer Service ifthere is heavy leakage. Check oil level Please contact Custom-er Service immediately if the oil is milky(water in oil). Clean the fine filter.Unpressurize the appliance.Unscrew the fastening screws of thedevice hood; remove the device hood.Unscrew lid with filter.Clean the filter with clean water or com-pressed air.Reinstall in reverse sequence. Clean filter at the detergent suck hose. Have the maintenance of the deviceperformed by the customer service. Oil change.Note:See "Specifications" for oil volume and type. Unscrew the fastening screws of thedevice hood; remove the device hood. Turn out the oil drain screw at the fronton the motor casing. Drain the oil in a collection basin. Screw in the oil drain screw. Fill in new oil slowly; air bubbles shouldgo out. Attach the lid of the oil container. Fasten the device hood. Empty and clean the detergent tank.Pull out the locking cap for the deter-gent tank along with the suction hose.Lay the device on the reverse.Empty and clean the detergent tank. DANGERRisk of injury by inadvertent startup of ap-pliance and electrical shock.– Prior to all work on the appliance,switch off the appliance and pull thepower plug.– Get the electrical components checkedand repaired only by authorised cus-tomer service persons.– Contact an authorised customer serviceperson in case of problems not men-tioned in this chapter or if you are indoubt or when you have been explicitlyasked to do so.The indicator lamps display the operatingstates (green) and interruptions (red).Reset: Set the appliance switch to "0". Wait for a while. Set the appliance switch to "I".Care and maintenanceSafety inspection/ maintenancecontractBefore each useWeeklyEvery 500 operating hours, at leastannuallyOil changeIf requiredTroubleshootingIndicator lamp10 EN