66 MLB_C-BA-e-143118.2 Change fuse+ Disconnect equipment from power supply.+ Swap fuse as shown in illustration.18.3 Servicing, maintenance The appliance may only be opened by trained service technicians who areauthorized by KERN. Ensure that the balance is regularly calibrated, see chap. Monitoring of testresources.18.4 Disposal Disposal of packaging and appliance must be carried out by operator accordingto valid national or regional law of the location where the appliance is used.