Maintenance and hardware diagnostics 37714Maintenance and hardwarediagnosticsContents of this chapterThe chapter contains preventive maintenance instructions and LED indicatordescriptions.Maintenance intervalsIf installed in an appropriate environment, the drive requires very little maintenance.The table lists the routine maintenance intervals recommended by ABB Drives.Consult your local ABB Service representative for more details on the maintenance.On the Internet, go to http://www.abb.com/drives and select Drive Services –Maintenance and Field Services.Maintenance Interval InstructionReforming of capacitors Every year whenstoredSee Capacitors on page 380.Check of dustiness, corrosionand temperatureEvery yearReplacement of the cooling fan(frame sizes R1…R4)Every three years See Cooling fan on page 378.Check and tightening of thepower terminalsEvery six years See Power connections on page 380.Replacement of the battery inthe Assistant Control Panel Every ten years See Changing the battery in theAssistant control panel on page 380.
