SOMAS A11 - Double-Acting Actuator Types A22, 32, 42, 52 - da; Double-Acting Actuator Types A24, 34, 44 - da

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Edition: 2022-06 Original document - Mi-503 EN
Procedure
1. Disconnect internal air piping.
2. Unscrew the nuts (
➔ Fig.5-2/1), remove the washers (➔ Fig.5-2/2) and the end cover
(
➔ Fig.5-2/3).
3. Loosen the nuts (
➔ Fig.5-2/15), dismantle the washers (➔ Fig.5-2/16) the cylinder
tube (
➔ Fig.5-2/4) and the tie-rods (➔ Fig.5-2/19).
4. Unscrew the screw (
➔ Fig.5-2/5), dismantle the washer (➔ Fig.5-2/6) and piston disc
(
➔ Fig.5-2/8).
5. Unscrew the screws (
➔ Fig.5-2/17) and remove front end cover (➔ Fig.5-2/18).
6. Replace the piston rod seal (
➔ Fig.5-2/9) and O-ring (➔ Fig.5-2/10).
7. Refit the front end cover.
8. Replace the O-ring (
➔ Fig.5-2/20) in the front end cover and the O-ring
(
➔ Fig.5-2/11) on the piston rod.
9. Fit a new piston seal (
➔ Fig.5-2/12) and new O-ring (➔ Fig.5-2/13) on the piston disc.
10. Screw together the complete package on the piston rod and fit a new guide ring (
➔
Fig.5-2/7).
11. Replace the new O-ring (
➔ Fig.5-2/14) in the end cover.
12. Refit the cylinder tube, tie-rods and end cover.
5.3.3 Double-acting actuator types A22, 32, 42, 52 - DA
See “Double-acting actuator types A11, 21, 31, 41, 51 - DA” (
➔ Chap.5.3.1).
5.3.4 Double-acting actuator types A24, 34, 44 - DA
See “Double-acting actuator types A11, 21, 31, 41, 51 - DA” (
➔ Chap.5.3.1) and
“Double-acting actuator types A13, 23, 33, 43 - DA” (
➔ Chap.5.3.2).