FLENDER ARPEX ARS-6 - Improper Use; Possible Faults When Selecting the Coupling And;Or Coupling Size; Possible Faults When Installing the Coupling

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ARPEX 8704 en
Operating instructions 01/2019
9.3 Improper use
Experience has shown that the following faults can result in incorrect use of the ARPEX coupling. In
addition to observing the other instructions in this manual, care must therefore be taken to avoid these
faults.
Directive 2014/34/EU requires the manufacturer and user to exercise especial care.
Failure to observe these instructions may result in breakage of the coupling.
Danger to life from flying fragments.
Through incorrect use the coupling may become an explosion hazard.
Incorrect use of the ARPEX coupling can result in damage to the coupling.
Coupling damage may result in stoppage of the drive and the entire plant.
9.3.1 Possible faults when selecting the coupling and/or coupling size
• Important information for describing the drive and the environment are not communicated.
• System torque too high.
• System speed too high.
• Application factor not correctly selected.
• Chemically aggressive environment is not taken into consideration.
• The temperature in the direct vicinity of the coupling is beyond the permissible range.
• Machining of a finished bore with incorrect diameter or incorrect fit assignment (see section 6).
• The transmission capacity of the shafthub connection is not appropriate to the operating conditions.
9.3.2 Possible faults when installing 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.
• Specified tightening torques and/or angles are not being adhered to.
• Alignment and/or shaftmisalignment values do not match the specifications in the assembly and/or
operating instructions.
• The coupled machines are not correctly fastened to the foundation, and as a result shifting of the
machines e.g. through loosening of the foundationscrew connection is causing excessive
displacement of the coupling parts.
• ARPEX plate packes are not fitted correctly (see seriesspecific assembly instructions).
• 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.