11. For versions with terminal compartment in type of protection Ex d (flameproof
enclosure): Fasten grub screws [6].
12. Fit cover [1] and fasten screws [2] evenly crosswise.
12.3.
Maintenance
Maintenance intervals
In compliance with EN 60079-17, Ex certified products either require repeated testing
at an interval of 3 years or continuous monitoring by trained personnel.
Lubrication
●
In the factory, the gear housing is filled with grease.
●
Grease change is performed during maintenance
-
Generally after 4 to 6 years for modulating duty.
-
Generally after 6 to 8 years if operated frequently (open-close duty).
-
Generally after 10 to 12 years if operated infrequently (open-close duty).
●
We recommend replacing the seals when changing the grease.
●
Additional lubrication of the gear housing is not required during operation.
Notes regarding the
maintenance
●
Perform visual inspection of actuator. Ensure that no outside damage or changes
are visible.
●
Electrical connection cables must be placed properly and in perfect condition.
●
Thoroughly touch up any possible damage to painting to prevent corrosion.
Original paint in small quantities can be supplied by AUMA .
●
Cable entries, cable glands, plugs etc. have to be checked for correct tightness
and sealing. Consider torques according to manufacturer's details. If required,
replace the components. Only use components which have an own EC type
examination certificate.
●
Check whether Ex connections are fastened correctly.
●
Take care of possible discolouration of the terminals and wires. This would in-
dicate an increased temperature.
●
For Ex housings, pay special attention to a possible collection of water. This
may originate from “breathing” due to severe temperature variations (e. g.
change of night and day), from damaged seals etc. Remove any water immedi-
ately.
●
Check the flame path gaps of flameproof enclosures for dirt and corrosion.
●
Since the dimensions of all flameproof joints are strictly defined and inspected,
no mechanical work (such as grinding) shall be performed on them. The joint
surfaces have to be cleaned chemically (e. g. with Esso-Varsol).
●
Prior to fitting, preserve joint surfaces with an acid-free corrosion protection
agent (e. g. Esso Rust-BAN 397).
●
Ensure that all housing covers are handled carefully and that the seals are
checked.
●
All cable and motor protection components have to be checked.
●
If defects impairing the safety are detected during maintenance, repair measures
have to be initiated without delay.
●
Any kind of surface coating for the joint surfaces is not permitted.
●
When replacing parts, sealing elements, etc. only original spare parts shall be
used.
12.4.
Disposal and recycling
Our devices have a long lifetime. However, they have to be replaced at one point in
time. The devices have a modular design and may, therefore, easily be separated
and sorted according to materials used, i.e.:
●
various metals
●
plastics
●
greases and oils
The following generally applies:
86
SAVEx 07.2 – SAVEx 16.2 / SARVEx 07.2 – SARVEx 16.2 Control unit: electronic (MWG)
Servicing and maintenance
ACVExC 01.2 Non-Intrusive Modbus RTU
