Azbil Corporation
Model: AMT, HDT - CV3000 Series Control Valves
25
(b) Reverse Action Type
(1) Disconnect the air piping and detach other external items from the actuator.
(2) Remove the stem connector, pointer and lock nut. (See Fig. 4-19.)
(3) Remove the clamping-bolts (except the pair of eyebolts) of the diaphragm
case.
(4) Loosen evenly and alternately the pair of eyebolts. (The initial setting of the
springs is done by these eyebolts.)
(5) Remove the diaphragm case. Take out the springs.
(6) Pull out upward the actuator rod together with the diaphragm.
Fig. 4-14 HA2R or HAR Actuator Fig. 4-15 HA4R Actuator
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