UBS Hydro IISafety EN2018-05-02 19 / 60Electronic componentsElectronic components may contain poisonous substances. They must not get tothe environment. The disposal has to be done by a professional disposal company.Accumulators and batteriesRechargeable batteries contain toxic heavy metals. They are subject to specialtreatment and must be returned to municipal collection points or disposed of by aspecialist.2.10 Safety instructions for maintenance / trouble shootingConduct in case of dangerous faultsThe following applies:1. Initiate the emergency stop immediately in case of faults that represent animmediate risk for persons or objects.2. Determine the cause of fault.3. In case rectification of the fault requires work to be done in the danger zone,switch off the machine and secure it against a restart.4. Depending upon the type of fault, get it rectified by authorized specialistpersonnel or rectify it yourself.DANGERRisk to life or risk of injury due to improperly carried out maintenance work/ trouble shooting!Maintenance work / trouble shooting conducted improperly causes danger to lifeor risk of injury, as well as risk of material damages to the machine or system!• Observe all safety instructions in this chapter as well as the applicablelocal safety and accident prevention regulations• Malfunctions, which require an intervention, as well as maintenance andcleaning works, should be rectified only when it is ensured that themachine is at a standstill and is safeguarded against a restart.• Release the blockages only when it is ensured that removing them will notresult in any dangerous movements of machine parts.• Ensure adequate freedom of movement before starting the work.• Pay attention to order and cleanliness at the assembly place! Parts lyingaround loose or one above the other are sources of accidents.- If components have been removed, pay attention to correct assembly,reassemble all fixing elements.• Pay attention to the following before a restart:• Make sure that all works have been done and completed according to theinstructions and information given in these Operating Instructions.• Ensure that no persons are present in the danger zone.• Make sure that all coverings and safety devices are installed and areworking properly.• Wait until the oil has cooled down below 50 °C, before starting works• Before starting works, make a temperature-resistant collecting containerwith the necessary capacity available.