Samson 3730 Series - Page 58

5-20 EB 8384-3 EN
Installation
b) Version for double-acting
actuator
Areversingampliermustbeadditionally
mounted for applications with double-acting
(DAP) actuators or applications with sin-
gle-acting (SAP) actuators that include par-
tial stroke testing.
In this case, a special adapter bracket (4) is
required for mounting.
Î See Fig.5-15
1. Fasten the adapter block (1) to the actua-
tor's NAMUR interface using the four
fastening screws (2).
Î Make sure that the seals are correctly
seated.
2. Mount the follower wheel (3) onto the
actuator shaft. Use the matching adapter
(see Table 5-9).
3. Place the adapter bracket (4) onto the
adapter block (1) and fasten it using the
fastening screws (5).
Î Make sure that the seals are correctly
seated.
4. Insert and fasten the follower pin in the
90°positiononthepositioner'slever
(see Fig.5-12).
5. Align the positioner on the adapter
bracket (1) in such a way that the follow-
er pin engages into the actuator's follow-
er wheel (3).
6. Fasten the positioner onto the adapter
bracket (4) using the fastening screws
(6).
7. MounttheType3710ReversingAmpli-
er (7) together with the two guide bush-
ings(8)andterminalplate(9)ontothe
adapter bracket using the associated fas-
tening screws (10).
Î Make sure that the seals are correctly
seated.
8. Remove the vent plug at the adapter
blockandsealtheopeningwiththeG¼
screw plug.
9. Mount the turnboard marked 'Doppel'
for double-acting actuators or the turn-
board marked 'PST' for single-acting ac-
tuators with partial stroke testing. See
Fig.5-14.
Î Make sure that the seals are correctly
seated.
Fig.5-14: Mounting the turnboard
1
2
3
4
5
6
7
8
9
10
1 Adapter block
2 Fastening screws
3 Follower wheel
4 Adapter bracket
5 Fastening screws
6 Fastening screws
7 Reversingamplier
8 Guide bushings
9 Terminal plate
10 Fastening screws
Fig.5-15: Mounting on a double-acting actuator or single-acting actuator with partial stroke testing