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58 EB 8384-2 EN

Mounting and start-up

5.6.1 Version for single-acting

actuator

Mounting onto a PFEIFFER Type31a (edi-

tion2020+) SRP Rotary Actuator

Î RefertoFig.14.

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 ac-

tuator shaft. Use the matching shaft

adapter(seeTable6onpage26).

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.13).Onlyusethelongerfollower

pin included in the mounting kit.

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).

Î Make sure that the seals are correctly

seated.

1 Retaining

screw

2 Air blocker

Fig.12: Adapter block for attachment accord-

ing to VDI/VDE3847-2

Fig.13: Follower pin in 90° position

Samson 373 Series User Manual

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