19. Maintenance
After commissioning, check for damages on paint of multi-turn actuator. Do
a thorough touch-up to prevent corrosion. Original paint in small quantities
can be supplied by AUMA.
AUMA multi-turn actuators require very little maintenance.
Precondition for reliable service is correct commissioning.
Seals made of elastomers are subject to aging 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 fastened firmly to prevent ingress of dirt or water.
We recommend:
.
If operated seldom, perform a test run about every 6 months. This assures
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,
re-tighten applying the torques given in table 1, page 7.
.
At intervals of approx. 6 months press in several squirts of ball bearing
grease at the lubrication nipple with grease gun.
Lubrication of the valve stem must be done separately.
The gear housing is filled with lubricant in the factory.
A grease change is recommended after 4 - 6 years.
28
Multi-turn actuators SARV 07.1 - SARV 10.1
AUMA VARIOMATIC
Operation instructions
