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ARPEX 8704 en
Operating instructions 01/2019
9.3.3 Possible faults in maintenance
• Maintenance intervals are not being adhered to.
• No genuine ARPEX plate packs are being used.
• Damaged ARPEX plate packs are being used.
• ARPEX plate packs are being used which do not meet the technical specification for the application.
• Leakage in the vicinity of the coupling is not being identified and as a result chemically aggressive
media are damaging the coupling.
10. Maintenance and repair
Observe the instructions in section 3, "Safety instructions"!
All work on the coupling must be carried out only when it is at a standstill.
The drive unit must be secured against being switched on accidentally (e.g. by locking
the key switch or removing the fuses from the power supply). A notice should be
attached to the ON switch stating clearly that work is in progress.
We also refer to the relevant accident prevention regulations at the place of
installation.
10.1 General
ARPEX couplings do not require maintenance; however, they should be visually inspected during
regular system maintenance inspections at least once a year. Especial attention should be given to the
condition of the plate packs. If individual plates or several plates are broken, the plate pack affected must
be replaced (see item 10.2).
No further maintenance work is necessary.
If the above specified maintenance instructions are not adhered to, a correct operation
of the coupling within the meaning of Directive 2014/34/EU can no longer be
guaranteed.
10.2 Replacing plate packs
Only original ARPEX plate packs must be used for replacement in order to guarantee troublefree torque
transmission and faultfree operation.
Normally, the plate packs can be replaced without moving the coupled machines. Exceptions
are combinations with socalled "B" hubs (hubs which for reasons of space are fitted the other
way round and so project into the spacer) and special solutions.
For refitting, the instructions in section 6, "Assembly", and section 7, "Startup", must be carefully
observed!