INSTRUCTION MANUALDocument ID: 73-H001. Copyright © Nilar AB. All rights reserved.8. Maintenance ........................................................................................................................................ 288.1 Protective measures during maintenance ...................................................................................................... 288.2 Inspection and monitoring ............................................................................................................................. 289. Decommissioning ................................................................................................................................ 299.1 Temporarily decommissioning........................................................................................................................ 299.2 Permanent decommissioning ......................................................................................................................... 2910. Troubleshooting .................................................................................................................................. 3011. Appendices .......................................................................................................................................... 31Appendix 1: Circuit diagram....................................................................................................................................... 31Appendix 2: Information bulletin, ITgrounding .......................................................................................................... 32