Disposal And Recycling - AUMA SQEx 05.2 Manual

Servicing and maintenance
Notes relating to mainte-
nance

13.4 Disposal and recycling

42
– 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 rarely (open-close duty).
• We recommend replacing the seals when changing the grease.
• Perform visual inspection of actuator and mounted accessories. Ensure that no
outside damage, changes or leakage of grease and oil are visible.
• Check actuator for unusual running or grinding noise or vibration which might be
an indication of bearing or gear damage.
• The electric connection cables must be without damage and wired correctly.
• Thoroughly touch up any possible damage to painting to prevent corrosion. Origi-
nal paint in small quantities can be supplied by AUMA.
• Check whether Ex connections are fastened correctly.
• Take care of possible discoloration of the terminals and wires. This would indicate
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 immediately.
• The process temperature range must be within the range of the specified ambient
temperature.
• 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 flameproof
joints should be cleaned suitably.
• Consult manufacturer for indications regarding flameproof joints.
• Repair interventions on flameproof joints is not permitted.
• Prior to fitting, preserve joint surfaces with an acid-free corrosion protection agent
(e. g. Esso Rust-BAN 397).
• Handle all housing covers with care and check seals
• 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 flameproof joints is not permitted.
• When exchanging parts, seals etc. only original spare parts shall be used.
• Cables and wire entries, blanking plug, cable glands, plugs etc. have to be
checked for correct tightness and sealing. Consider torques according to manufac-
turer's details. If required, re- place the components. Only use components with
appropriate Ex approval.
Our devices have a long service life. 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.:
• Electronic scrap
• Various metals
• Plastic materials
• Greases and oils
The following generally applies:
• Generally, greases and oils are hazardous to water and must not be released into
the environment.