Section 2: Maintenance - Emerson Bettis M Series Installation, Operation And Maintenance Manual

Stainless steel scotch yoke actuators
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Installation, Operation and Maintenance Manual
MAN-02-01-39-0704-EN Rev. 0

Section 2: Maintenance

Actuators are factory lubricated and in general do not require periodic lubrication or
maintenance while in service. Actuators should be visually inspected periodically for
corrosion damage and promptly repaired. Actuators should be operated at least annually
to assure proper operation.
Figure 1
Maintenance
SINGLE ACTING ACTUATOR
ONE CYLINDER
SUPPLY
SOLENOID
OR
POSITIONER
SINGLE ACTING ACTUATOR
TWO CYLINDERS WITH JUMPER
SUPPLY
SOLENOID
OR
POSITIONER
DOUBLE ACTING ACTUATOR
SUPPLY
EXHAUST
DOUBLE ACTING ACTUATOR
TWO CYLINDERS WITH JUMPER
SUPPLY
EXHAUST
Section 2: Maintenance
July 2019
ONE CYLINDER
SOLENOID
EXHAUST
OR
POSITIONER
SHUT
EXHAUST
SOLENOID
OR
POSITIONER
3

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