294 TROUBLESHOOTING, CARE AND MAINTENANCE4.1 General Instructions⚠ WARNING+ Do not make any improper changes to the equipment.⚠ CAUTION+ Damaged or worn components may affect your safety and the life of the equipment.Therefore, immediately replace damaged or worn components. In such a case, contact thecontract partner. The equipment must not be used until it has been repaired. If necessary,use only original spare parts. ࣑ATTENTION+ In addition to the instructions and recommendations for maintenance and care given here,additional service and/or repair work may be necessary; this must only be carried out byauthorised service technicians.4.2 Faults and Fault DiagnosisThe equipment undergoes regular quality controls during production. Nevertheless, faults ormalfunctions may occur. Frequently, individual parts are responsible for these disturbances, anexchange is usually sufficient. Please refer to the following overview for the most common errors andhow to correct them. If the equipment still does not function properly, contact your contract partner.Fault Cause SolutionGrinding noises Cables or pulleys do not runsmoothly or are damaged+ Visual inspection of the cable routingor the pulley guide+ If damaged, replace the defectivepartWeight hanging inthe air Cable tensioned too tight Readjust cable tensionCable without tension Cable too loose + Check cable routing+ Readjust cable tensionSqueaking & crackingnoisesScrew connections loosenedor too tight+ Check or lubricate screw connections+ Check cable routingUnit wobbles + Uneven ground+ Loose screw connections+ Align unit+ Tighten screw connectionsHeavy draught+ Weight holders/guiderods too dry+ Faulty cable routing+ Lubricate guide rods+ Check cable routing