DeZurik G-SERIES Manuel - Page 10

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DeZURIK

Cylinder Operated G-Series Actuator

Disassembling Actuator

13. Remove the screws or nuts fastening the cylinder assembly to the housing and carefully remove

the cylinder assembly by sliding it away from the actuator until the rack rod clears the actuator

housing.

14. Remove the rack from the housing.

15. Remove the rack bearing (if noticeable wear to bearing) by prying it from the actuator housing.

16. Scribe corresponding lines on the valve and adapter to be used for alignment during actuator

reassembly.

This valve is a pressure vessel. Removing the bonnet bolts before relieving pipeline pressure

can result in personal injury or equipment damage. Always relieve pipeline pressure before

removing the actuator.

17. Remove the screws fastening the adapter to the adaptor plate (2"- 4" valves) or to the valve

bonnet (5" - 16" valves).

18. Lift the rest of the actuator and the adapter off the valve.

19. Remove the screws fastening the adapter to the actuator housing, and separate the two parts.

Reassembling Actuator

Install new bearings and seals in the adapter and cover if necessary. See Figure 6 for proper

placement.

D10191

(Continued)

Figure 6 – Location of Actuator Seals and Bearings

Page 10

July 2016