Servicing And Maintenance; Preventive Measures For Servicing And Safe Operation - AUMA SA 07.2 Operation Manual

Servicing and maintenance

13. Servicing and maintenance
AUMA
Service & Support
13.1.

Preventive measures for servicing and safe operation

88
SA 07.2 SA 16.2 / SAR 07.2
Damage caused by inappropriate maintenance!
Servicing and maintenance must be carried out exclusively by suitably qualified
personnel having been authorised 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.
AUMA offers extensive service such as servicing and maintenance as well as
customer product training. For the contact addresses, refer to our website
(www.auma.com).
The following actions are required to ensure safe device operation:
6 months after commissioning and then once a year
Carry out visual inspection:
Cable entries, cable glands, screw plugs, blanking plugs, etc. have to be checked
for correct fit and sealing. If required, tighten cable glands and blanking plugs
with torque in compliance with the manufacturer's specifications.
Check actuator for damage as well as for grease or oil leakage.
When deployed in areas where dust formation represents a potential explosion
hazard, perform visual inspection for deposit of dirt or dust on a regular basis.
Clean devices if required.
Check fastening screws between 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.
Figure 84: Output drive type A
[1] Output drive type A
[2] Grease nipple
Lubrication of the valve stem must be done separately.
Exception: For output drive type A in version with stem lubrication (option), the
stem is lubricated together with the output drive. If the valve manufacturer inter-
val specifications are shorter for lubricating the valve, the shorter lubrication
intervals of the valve manufacturer apply.
Table 42:
Grease quantities for bearing of output drive type A
Output drive type A 07.2
1)
Quantity [g] 1.5
1) For grease with density r = 0.9 kg/dm³
For enclosure protection IP68
After submersion:
SAR 16.2 Control unit: electronic (MWG)
AC 01.2 Non-Intrusive DeviceNet
A 10.2 A 14.2
3 5
A 16.2
10