FLENDER ARPEX - Possible Faults When Fitting the Coupling; Possible Faults in the Maintenance of the Plant

60
ARPEX 8706 en
Operating instructions 10/2017
9.3.2 Possible faults when fitting the coupling
─ Components with transport or other damage are being fitted.
─ When fitting coupling parts in a heated condition, these components are being excessively heated.
─ The shaft diameter is beyond the specified tolerance range.
─ Coupling parts are interchanged during fitting work.
─ Nonobservance of component markings for assembly balancing (see item 6.7) while the coupling is
fitted.
─ Specified tightening torques are not being adhered to.
─ Alignment and/or shaftmisalignment values do not match the specifications on the orderspecific
drawing of the coupling.
─ The coupling protection used is not suitable for operation within the meaning of the
explosionprotection requirements and/or in accordance with Directive 2014/34/EU.
─ Operating conditions are being changed without authorisation.
9.3.3 Possible faults in the maintenance of the plant
─ Maintenance intervals are not being adhered to.
─ Impermissible shaft misalignments occur, which are caused by the coupled units settling and were not
taken into consideration when designing the coupling.
─ Leakage in the vicinity of the coupling is not being identified and as a result chemically aggressive
media are damaging the coupling.