Operating Manual14 Original Operating Manual6. Maintenance and servicing6.1 GeneralRegular maintenance is essential to ensure reliable operation and long service life of the KAUPattachment.Ensure that maintenance and servicing are performed by qualified and authorisedpersonnel only.Lubrication and cleaning work on the attachment may also be performed by the lift truckoperator.Perform maintenance and servicing work only when the attachment is parked securelyon a stable, level foundation. For installing and removing, it is recommended to use apallet to take the attachment. The attachment can thus be securely placed andtransported.Pay attention to a sufficient load-carrying capacity of the lifting means.Replace missing or defective warning signs on the attachment.Do not use third party spare parts. Through poor quality or incorrect matchingthey can result in a risk of accident. The EC Declaration of Conformity by themanufacturer becomes invalid and you assume full responsibility in the case ofaccident.Use only original spare parts from the manufacturer.The hydraulic system is under pressure. During work on hydraulic componentsoil spurting out can cause injuries. Unload the system in accordance with theoperating instructions of the lift truck manufacturer. In the case of injuries causedby high pressure oil, inform the works physician and seek out a specialistimmediately.Screw connections can loosen due to vibration of the attachment. During routinemaintenance check that screw connections are correctly torqued and replacescrews which are visibly damaged.Note the following tightening torques which are valid for screws with connecting surfaces accordingto ISO 4762, ISO 4014, ISO 4032 etc.:Screw/bolt rating 8.8 10.9 12.9M6 thread 9,3Nm 14Nm 16NmM8 thread 23Nm 33Nm 39NmM10 thread 45Nm 66Nm 77NmΜ12 thread 77Nm 115Nm 135NmΜ16 thread 190Nm 280Nm 330NmΜ20 thread 385Nm 550Nm 640Nm