Samson 3275 Mounting And Operating Instructions page 24

Servicing
5. Pull the piston rod (A1) and piston (A9)
from the cylinder barrel (A6).
6. Separate the cylinder barrel (A6) and
cover (A10).
7. Use a suitable tool to remove parts sub-
ject to wear. Make sure that the facings
are not damaged.
8. Carefully clean the affected places and
apply a suitable lubricant to them.
9. Apply a suitable lubricant to the parts
subject to wear.
10. Mount the parts subject to wear. Make
sure that the parts and facings are not
damaged. If necessary, use an assembly
tool.
11. Apply a suitable lubricant evenly to the
face in the cylinder barrel (A6) and pis-
ton rod (A1).
12. Fill the grease chambers at the piston
seal (A7) and piston rod seal (A2) with a
suitable grease.
Fig. 8: Piston rod seal in the yoke for actuator with 314 and 490 cm² actuator areas
24
13. Center the cylinder barrel (A6) on the
cover (A10).
14. Insert the piston (A9) with piston rod
(A1) into the cylinder barrel (A6). Make
sure that the parts subject to wear are
not damaged.
15. Carefully slide the base (A4) over the
piston rod (A1).
16. Screw the tie rods (A12) from side with
the piston rod with the short thread side
into the collar nuts (A11) on the cylinder
base. Tighten the collar nuts in a criss-
cross pattern. Observe tightening
torques.
17. Leak-test the actuator (see section 7.2).
18. Mount the actuator on the valve (see sec-
tion 5.1).
A242
A208
A1
A241
A208
A1
A241
A242
Piston rod
Ring nut
Wiper ring
Dry bearing
EB 8314 EN