FLENDER ZAPEX Manuale di istruzioni per l'uso - Pagina 11
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Shafthub connection resulting in impermissible material stress on the coupling.
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Operating conditions are being changed without authorisation.
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Coupling and machine / drive train form a critical torsional, axial and bending vibration system.
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Fatigue torque load too high.
5.2.2
Frequent faults when fitting the coupling
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Components with transport or other damage are being fitted.
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The shaft diameter is beyond the specified tolerance range.
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Coupling parts are being interchanged, i.e. their assignment to the specified shaft is incorrect.
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Specified axial fastenings are not fitted.
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Specified tightening torques are not being adhered to.
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Bolts are inserted dry or greased.
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Flange surfaces of screwed connections have not been cleaned.
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Alignment and/or shaftmisalignment values do not match the specifications in the instructions manual.
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The coupled machines are not correctly fastened to the foundation, and as a result shifting of the
machines e.g. through loosening of the foundationscrew connection is causing excessive
displacement of the coupling parts.
5.2.3
Frequent faults in maintenance
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Maintenance intervals are not being adhered to.
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No genuine ZAPEX spare parts are being used.
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Old or damaged ZAPEX spare parts are being used.
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Leakage in the vicinity of the coupling is not being identified and as a result chemically aggressive
media are damaging the coupling.
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Fault indications (noise, vibration, etc.) are not being observed.
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Specified tightening torques are not being adhered to.
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Alignment and/or shaftmisalignment values do not match the specifications in the instructions manual.
ZAPEX 3505 en
Operating instructions 10/2017
11