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ARPEX 8706 en
Operating instructions 10/2017
10.
Maintenance and repair
Observe the instructions in section 3, "Safety instructions"!
DANGER
Danger of explosion
Risk of explosion when operating in potentially explosive areas through damage.
Damaged coupling modules and coupling parts are potential explosion hazards.
Use only undamaged coupling components. Operating the coupling with damaged coupling parts is not
permitted in potentially explosive environments in accordance with Directive 2014/34/EU.
WARNING
Serious injury
Rotating components may cause injury during work on the still rotating coupling.
All work on the coupling must be carried out only when it is at a standstill. Secure the drive unit to prevent
unintentional switchon. A notice should be attached to the ON switch stating clearly that work on the
coupling is in progress. The relevant accident prevention regulations at the place of installation apply as
well.
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.
10.2
Replacing plate packs
If the plate packs must be replaced, it is required to return the coupling to the manufacturer for repair and
rebalancing.
WARNING
Serious injury
Risk of serious injury through flying fragments and/or risk of damage to the coupling.
The module has already been fully assembled at the factory. The plate packs must not be demounted
or retightened.
10.3
Replacing screw connections of the flanges
NOTICE
Damage to the coupling
Damage to the coupling and/or disruptions through the incorrect use of screw connections of the flanges.
The screw connections of the flanges have been checked by weight and must always be used or
replaced in sets.
