Azbil AMT - Disassembly and Assembly of PSA 1 Actuator

Azbil Corporation
Model: AMT, HDT - CV3000 Series Control Valves
18
4.4 Disassembly and assembly of model PSA 1
Disassembly procedure
A. Direct action model (see Figure 4-6)
(1) Disconnect the air piping and detach the accessories from the actuator.
(2) Remove the stem connector.
(3) Remove the clamping bolts (except the pair of eyebolts) from the diaphragm
case.
(4) Alternatively and evenly loosen the pair of eyebolts. The initial setting of the
springs is achieved using these eyebolts.
(5) Removing the diaphragm case. Pull the actuator rod upward and out together
with the diaphragm.
(6) Take out the springs.
B. Reverse action model (see Figure 4-7)
(1) Disconnect the air piping and detach the accessories from the actuator
(2) Remove the stem connector.
(3) Remove the clamping bolts (except the pair of eyebolts) from the diaphragm
case.
(4) Alternately and evenly loosen the pair of eyebolts. The initial setting of the
springs is achieved using the eyebolts.
(5) Remove the diaphragm case. Take on the springs.
(6) Pull the actuator rod upward and out together with the diaphragm.