309665-12.2014-GbThis maintenance manual is intended to make the repair and maintenance of the FK40 easier for the servicing personnel. The maintenancemanual contains a complete description of each work step for the disassembly and assembly of the compressor components. Each step mustbe carefully adhered to in order tu ensure a reliable repair.Note:For replacing components GEA Bock provides suitable spare part kits. Yet assembly jobs which go beyond the replacement of the shaftseal, the valve plates and - if there is one - the capacity regulator (accessory) should be checked carefully for their economic efficiencybeforehand.The maintenance manual describes the standard type of the FK40 compressor which we deliver. Because of different system conceptions,some passages in this service manual may differ from the unit which you have come across. In these cases the present manual shouldbe used in analogous fashion.1 I IntroductionIdentification of safety instructionsSafety instructionsTarget group of these instructions• Work on the compressor may only be carried out by persons whose technical training, skills and expe-rience along with their knowledge of pertinent regulations and documentation means that they are capa-ble of assessing the work to be carried out and detecting any possible dangers• Specialist can mean a refrigeration technician for example. Note that electrical work may only be carriedout by a qualified electrician. Alternatively, on a country-specific basis, persons who have undergone elec-trotechnical instruction and who have proof of their qualification are also permitted to carry out the work.2 I SafetyDANGER Indicates a dangerous situation which, if not avoided,will cause immediate fatal or serious injury.DANGER Indicates a dangerous situation which by electrical current, if not avoided,will cause immediate fatal or serious injury.WARNING Indicates a dangerous situation which, if not avoided,may cause fatal or serious injury.CAUTION Indicates a dangerous situation which, if not avoided,may cause fairly severe or minor injury.ATTENTION Indicates a situation which, if not avoided,may cause property damage.INFO Important information / tips on simplifying work.