Maintenance 5-1Part 1032059B 2003 Nordson Corporation Manual 41-DURABLUE-MA-02Section 5MaintenanceWARNING: Allow only qualified personnel to perform the following tasks.Follow the safety instructions in this document and all other relateddocumentation.Table 5-1 describes the preventive maintenance tasks required to keepDuraBlue melters operating within their specified limits and to preventequipment malfunctions. For information about maintaining optionalequipment that was supplied by Nordson, refer to the instructions providedwith the equipment.If the melter stops operating or is operating incorrectly, refer to Section 6,Troubleshooting, for information about diagnosing common problems andperforming corrective maintenance.Table 5-1 Preventive Maintenance TasksTask Frequency ReferenceRelieving system pressure Before performing any maintenance taskthat requires opening a hydraulicconnection or portRelieving System PressureCleaning the exterior of the melter, hoses,and gunsDaily Cleaning the MelterReplacing the filterNOTE: Some DuraBlue melters do nothave a filter. As needed When changing the type or grade ofhot meltReplacing the FilterInstruction sheet provided withreplacement filterCleaning the tank When changing the type or grade ofhot melt When excessive charring occursCleaning the Tank