Samson 4740, Mounting And Operating Instructions, Page: 10 / 24

10 EB 8357 EN
Mounting and start-up
4 Mounting and start-up
4.1 Mounting on Type 3353
and Type 3354 Valves
Note:
The mounting unit (1400-9922) is re-
quired to mount the limit switch onto
the Type 3353 Angle Seat Valve and
the Type 3354 Globe Valve.
4.1.1 Preparing the mounting
kit
Î
See Fig. 2
WARNING!
Risk of cut injury due to sharp
thread.
Do not touch the sharp thread of the
adapter.
Note:
The spacer (4) is only required to
mount the limit switch onto a fail-
close (FA/NC) valve.
Limit switch with inductive proximity switch-
es
Î
Thread the guided bushing (2) with the
beveled part (2.1) facing downward on
-
to the stem of the adapter (3.1), while
holding the screw inside the adapter sta-
tionary.
Limit switch with microswitches
Î
Thread the guided bushing (2) with the
straight rim (2.2) facing downward onto
the stem of the adapter (3.1), while hold-
ing the screw inside the adapter station-
ary.
Fail-open (FE/NO) version
Î
The spacer is not required.
Fail-open (FA/NC) version
Î
Insert the spacer (4) into the sleeve of the
adapter (3.2) as far as it will go.
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