DeZurik G-SERIES Podręcznik - Strona 9

Przeglądaj online lub pobierz pdf Podręcznik dla Kontroler DeZurik G-SERIES. DeZurik G-SERIES 12 stron. Lift, turn and reseat used on ptw & pfw tapered plug valves
Również dla DeZurik G-SERIES: Instrukcja (7 strony), Podręcznik (8 strony), Podręcznik (17 strony), Podręcznik (14 strony), Podręcznik (14 strony), Podręcznik (16 strony), Instrukcja (19 strony), Podręcznik (17 strony), Instrukcja obsługi (13 strony), Podręcznik (9 strony)

Reassembling Actuator

1. Line up the scribe marks on the valve and adapter made during actuator removal; then set the

adapter and housing on the valve.

2. Fasten the adapter to the valve.

3. Insert the rack bearing on the pin in the actuator housing (if replacing worn bearing).

4. Apply a liberal amount of grease to the rack teeth and the back of the rack that will contact the

rack bearing; then install the rack in the housing.

5. Place the actuator drive key in the keyseat in the valve shaft.

6. Apply a liberal amount of grease to the gear sector teeth and a light amount of grease to the

journals; then place the gear sector in the housing and carefully align the teeth as marked

during disassembly.

Note: It may be necessary to loosen the adapter mounting screws and move the housing a

small amount to align the gear. Be sure to retighten the mounting screws after aligning

the gear.

7. Scrape the old gasket material from the actuator housing and cylinder head, then place a new

gasket on the cylinder head.

8. Install the cylinder/rack rod assembly by sliding the rack rod through the rack then fasten the

cylinder to the housing.

Note: If the rack rod is not attached to the cylinder, clean the threads of both the rack rod and

the cylinder shaft, then apply Loctite to the cylinder shaft threads and screw the rack rod

onto the cylinder shaft until tight.

9. Screw one nut onto the rack rod until it is tight against the rack.

10. Screw the other nut onto the rack rod and tighten the two nuts against one another.

11. Set a new cover gasket on the housing, then install and fasten the top cover on the housing;

make sure the scribe marks line up.

12. Fasten the pointer to the top of the gear sector.

13. Replace the extension cap.

14. Check the stop settings and readjust if necessary. The correct adjustment procedure is

described in the STOP ADJUSTMENT section of this instruction.

15. Pipeline flow may now be restored.

October 2012

Cylinder Operated G-Series Actuator

(Continued)

Page 9

DeZURIK

D10082