AUMA Electric multi-turn actuators SA 07.1 - 48.1_SAR 07.1 - 30.1 NORM - Manual (Page 25)

18. Maintenance After maintenance, check multi-turn actuator for damage to paint finish. If damage
to paint-finish has occurred, it has to be touched up to avoid corrosion. Original
paint in small quantities can be supplied by AUMA.
AUMA multi-turn actuators require low-level maintenance.
Precondition for reliable service is correct commissioning.
Seals made of elastomers are subject to ageing and must therefore regularly be
checked and, if necessary, exchanged.
It is also very important that the O-rings at the covers are placed correctly and
cable glands tightened firmly to prevent ingress of dirt or water.
We recommend additionally: .
If rarely operated, perform a test run about every 6 months. This ensures that the
actuator is always ready to operate. .
Approximately six months after commissioning and then every year, check bolts
between actuator and valve/gearbox for tightness. If required, tighten applying
the torques given in table 2, page 8.
.
For multi-turn actuators with output drive type A: at intervals of approx. 6 months
from commissioning press in Lithium soap EP multi-purpose grease on mineral
oil base at the grease nipple with grease gun (quantity see table 3, page 9).
19. Lubrication
.
The gear housing is filled with lubricant in the factory.
.
A grease change is recommended after the following operation time: .
If rarely operated, after 10 – 12 years
.
If operated frequently, after 6 – 8 years
Lubrication of the valve stem must be done separately.
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Multi-turn actuators SA 07.1 – SA 48.1 / SAR 07.1 – SAR 30.1
Operation instructions AUMA NORM