OM ET18/20/24 us 1.3 * et18_20_24b800.fm 8-188 TroubleshootingNoticeContact a Wacker Neuson dealer or customer service in case ofmalfunctions or signs that are not listed in the following tables orthat persist after maintenance on or with the machine has beenperformed correctly.8.1 Diesel engine malfunctions8.2 Malfunctions of the traveling driveNo malfunctions specified.8.3 Malfunctions of the hydraulic system8.4 Malfunctions of the electrical systemNo malfunctions specified.8.5 Troubleshooting the air conditioningNo malfunctions specified.Malfunction/sign Possible cause Remedy SeeEngine does not start or is not easyto startEmpty fuel tank Refueling 7-26Malfunctioning or dischargedbattery Replace the battery 7-46Malfunctioning fuse Check the fuse 9-5Engine starts, but does not runsmoothly or faultless Air in fuel system 7-28Engine overheatsEngine oil level too low Add engine oil 7-33Dirty air filter Replace the air filter 7-38Dirty radiator fins Clean the radiator 7-36Coolant level too low Add coolant 7-35Engine does not have enough output Dirty air filter Replace the air filter 7-38Insufficient or no engine oil pressure Engine oil level too low Add engine oil 7-33Black engine smoke Dirty air filter Replace the air filter 7-38Malfunction/sign Possible cause Remedy SeeUpper carriage is difficult to rotate, ordoes not rotate at all Insufficient lubrication Lubrication 7-24Machine does not work, or withreduced output Hydraulic oil level too low Add hydraulic oil 7-42The display element emits a continu-ous buzzing soundMalfunctioning pressureswitch of safe load indicatorHave the error repaired by aWacker Neuson servicecenter.--Troubleshooting
