Operating Instructions

Servicing and maintenance
Preventive measures for servicing and safe operation
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A6V12052002
Servicing and maintenance
CAUTION
Damage caused by inappropriate maintenance!
Servicing and maintenance must be carried out exclusively by suitably qualified
personnel having been authorized by the end user or the contractor of the plant.
Therefore, we recommend contacting our service.
Only perform servicing and maintenance tasks when the device is switched off.
Preventive measures for servicing and safe
operation
The following actions are required to ensure safe device operation:
6 months after commissioning and then once a year
● Carry out visual inspection:
– Check threaded plugs, cable entries, cable glands, shorting plugs, and so on
for correct tightness and sealing.
– Consider torques according to manufacturer's details.
● Check fastening screws between the actuator and gearbox/valve for tightness. If
required, fasten screws while applying the tightening torques as indicated in
chapter <Assembly>.
● When rarely operated: Perform test run.
● For devices with output drive Type A: Press in Lithium soap EP multi-purpose
grease on mineral oil base at the grease nipple with a grease gun.
● Lubricate the valve stem separately.
Figure 57: Output drive Type A.
[1] Output drive type A
[2] Grease nipple
Table 15: Grease quantities for bearing of output drive Type A.
Output drive type
A2x6.21K
A2x6.41K
Quantity [g]
1)
1.5
3
For grease with density r = 0.9 kg/dm³