Maintenance personnel must wear personal protective equipment such as insulated gloves and insulated shoes., and ensure that the insulation performance of the tools is good. Hang. Due to increasing distribution service quality standards and electrical network technology, efficient maintenance procedures are essential to meeting both criteria. It consisted of following the manufacturers' recommendations about how to take care of equipment at predetermined intervals of time or usage, with checks intended to reduce the. This manual contains important instructions that you should follow during installation and maintenance of the UPS and batteries. ECopyright 2005–2007 Eaton Corporation, Raleigh, NC, USA.