Samson TROVIS 3730-1 Translation Of Original Instructions page 54

Installation
a) Version for single-acting
actuator
Mounting on Type 31a Actuator (edi-
tion 2020+), SRP version
Î See Fig. 5-17
1. Seal the signal pressure output at the
back of the positioner with the screw
plug (4, order no. 0180-1254) and the
associated O-ring (order no. 0520-
0412) if the screw plug is not yet in
place.
2. 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.
3. Mount the follower wheel (3) onto the ac-
tuator shaft. Use the matching shaft
adapter (see Table 5-9 on page 5-43).
4. 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.
5. Insert and fasten the follower pin in the
90° position on the positioner's lever (see
Fig. 5-16). Only use the longer follower
pin included in the mounting kit.
6. 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).
5-20
7. Fasten the positioner onto the adapter
bracket (4) using the fastening screws
(6).
Î Make sure that the seals are correctly
seated.
Fig. 5-16: Follower pin in 90° position
EB 8484-1 EN