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Section 6: Maintenance
April 2021
Section 6: Maintenance
6.1
Storage Procedures
The actuator should be immediately stored in a clean, dry warehouse, free from vibration and rapid
temperatures changes, until it can be installed and energized. If the actuator must be stored outside,
it should be stored off the ground at an elevation sufficient to prevent it from being immersed in
water or buried in snow and covered to prevent damage from site debris.
If the actuator is not attached to a valve, the preferred orientation is with the motor and electrical
compartment horizontal. Care should be taken to plug all open ports on the actuator and all controls
to keep out foreign contaminates.
6.2
Service Interval
Routine maintenance is generally unnecessary. Normally recommended service interval for
Shafer/Bettis actuators is five years or maximum actuator seal life cycle, whichever occurs first.
NOTE:
Storage time is considered as part of the Service Interval time.
It is recommended that Service Kits be ordered approximately three (3) months prior to scheduled
maintenance to assure availability.
Observe the function of the Accumulator (76) and Thermal Volume Controller (77) on an annual
service interval to ensure they are functioning properly and holding hydraulic pressure.
6.3
Lubrication Requirements
NOTE:
Lubricant, other than listed below should not be used without prior written approval of Emerson
Product Engineering.
Hydraulic fluids, other than those listed below should not be used without prior written approval of
Emerson Product Engineering.
Standard temperature service (-29 °C to 60 °C/-20 °F to 140 °F) use CONOCO Megaflow
Fluid, reference Section 2.7.1.
Low temperature service (-46 °C to 60 °C/-50 °F to 140 °F) use Mobil Univis™ HVI 13 fluid.
19
Installation, Operation and Maintenance Manual
VA-DC-000-1952 Rev. 0
AW HVI 22
®
Maintenance
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