Basic Function And Air Leak Test - Emerson EL-O-Matic F Series Installation, Operation And Maintenance Manual

Section 9: Reassembly
September 2015
9.6

Basic function and Air Leak Test

CAUTION - MOVING PARTS
Applying pressure to the actuator will cause the actuator/valve assembly to operate.
1.
2.
Figure 31
38
Apply pressure (max. 8 bar/116 psi) to ports A and B. Use some soap suds at the
indicated points: around pinion top (1), pinion bottom (2), the end caps (3) and
limit stops (4).
In case of leakage around:
a. The limit stop bolts (and/or the spring-package bolt at spring-return
models). Turn the lock nut of the bolts tighter; until the leakage stops.
b. The end caps: Disassemble the end caps, replace o-rings and reassemble.
c. The pinion top or bottom and A- or B- port: Disassemble the complete
actuator, replace o-rings and reassemble.
Basic function and air leak test
1
Installation, Operation and Maintenance Manual
3
4
B
A
DOC.IOM.EF.EN Rev. 6
A B
3
2
Reassembly