Stübbe 145039, Руководство по эксплуатации, Страница: 10 / 14

Maintenance
7 Maintenance
WARNING
Risk of injury and poisoning due to hazardous media liq-
uids!
Use personal protective equipment when carrying out any
work on the
fi tting.
7.1 Servicing
1. Visual and function check (every three months):
– Normal operating conditions unchanged
– No leaks
– No unusual operating noises or vibrations
2. Ensure that fi tting functions properly (opening, closing)
3. Clean fi tting with a moist cloth if necessary.
4. Retighten housing screws ( → 9.2 Tightening torques,
Page 13).
5. Check diaphragm for wear and replace if necessary:
Diaphragm material
Max. number of
actuations
1)
EPDM 150,000
FPM: 100,000
PTFE (EPDM) 100,000
Tab. 4 Diaphragm maintenance interval
1) Applies for water at 20 °C. Under different conditions
(chemicals, media that contains solids/abrasives),
shorten the maintenance intervals.
7.2 Maintenance
DANGER
Risk of electrocution!
All electrical work must be carried out by quali fi ed electri-
cians only.
WARNING
Risk of injury and poisoning due to hazardous or hot
media.
Use personal protective equipment when carrying out any
work on the
fi tting.
Safely collect the media and dispose of it in accordance
with environmental regulations.
WARNING
Risk of injury during disassembly!
Wear protective gloves, components can be very sharp-
edged due to wear or damage.
Remove components with springs (e.g. pneumatic drive)
carefully, since spring tension can cause components to
be ejected.
10 MV 309 BA-2016.08.04 EN 300 156