You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
7. MAINTENANCE AND TROUBLE-SHOOTINGThis chapter describes maintenance and troubleshooting procedures to keep theequipment in good condition and restore normal operation in case of trouble.WARNINGELECTRICAL SHOCK HAZARDDo not open the equipment.This equipment uses highvoltage that can causeelectrical shock.0nly qualified persons canwork inside the equipment.NOTICEDo not apply paint, anti-corrosivesealant or contact spray to plasticparts or equipment coating.Those items contain products that candamage plastic parts and equipmentcoating.7.1 Periodical MaintenanceCheck item Checkpoint CountermeasureCable (Connector)Ground terminalCommunications unitHandsetCheck that all cables areconnected tightly and freeof corrosion.Check that the ground wireconnected to the terminal istightly fastened and the terminalis free of dust, dirtand rust.Check that there is no dustor dirt on the unit.If necessary, connect loosenedcables, etc. If a cableis damaged, replace immediately.Remove dust and dirt fromthe terminal. Tighten thewire if it has loosened.Clean the unit with a soft,dry cloth. If the unit is verydirty, clean with water-dilutedmild detergent and softcloth. Wipe unit with cleancloth after on a wet cloththen with a dry cloth. Do notuse alcohol or paint thinners,as they can removewriting and marks on thepanel.7-1
Change language