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コントローラー DeZurik POWERRAC R1のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。DeZurik POWERRAC R1 20 ページ。 Spring-return actuator used on 1/2-3" pec eccentric valves

DeZURIK

Spring-Return Cylinder Disassembly

Refer to Figure 6 for component identification.

The spring assembly (S19) contains a compressed spring that can cause death or

personal injury if the cylinder tie rod nuts are removed while the spring force is on the

tie rod nuts.

DO NOT REMOVE THE CYLINDER TIE ROD NUTS UNLESS THE SPRING FORCE

DECREASES TO ZERO!

1. Loosen the tie rod nuts (S15) on the tie rods (S12).

Note: Force from the spring assembly will be felt during the first few turns of the nuts. As the

cylinder tie rod nuts are loosened, the force from the spring assembly must decrease to zero

before the nuts can be removed from the tie rods. The nuts and washers (S13) may be removed

safely after the force from the spring assembly decreases to zero. If the spring force does not

decrease to zero, re-tighten the nuts and contact the factory.

2. Remove the cylinder cap (S11).

3. Push the piston rod (S4) through the cylinder head (S1) so that the spring assembly (S19) is

accessible.

The spring assembly (S19) contains a compressed spring that can cause death or

personal injury if the assembly is taken apart.

DO NOT DISASSEMBLE THE SPRING ASSEMBLY!

4. Remove the spring assembly (S19) carefully from the cylinder tube (S6).

Note: Do not damage the cylinder wall with the spring assembly during this step. Do not

disassemble the spring assembly!

5. Remove the cylinder tube (S6), the piston (S7) and the piston rod (S4) from the cylinder head

(S1).

6. Remove the piston (S7) and the piston rod (S4) from the cylinder tube (S6).

7. Remove the piston nut (S10), the piston (S7) and the O-ring (S14) from the piston rod (S4).

8. Remove the piston seal (S9) and the O-ring (S8) from the piston (S7).

9. Remove the piston rod seal (S3) from the cylinder head (S1).

10. Remove the two cylinder tube O-rings (S5) from the cylinder head (S1) and from the cylinder

cap (S11).

D10389

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November 2020