DeZurik G-SERIES Instructions Manual - Page 10

Browse online or download pdf Instructions Manual for Controller DeZurik G-SERIES. DeZurik G-SERIES 13 pages. Lift, turn and reseat used on ptw & pfw tapered plug valves
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DeZURIK

G-Series Cylinder Actuator Used on BAW Butterfly Valves

Reassembling Actuator

Install new bearings (B12) and O-rings (B14) in the housing (B1) and cover (B2) if necessary. See

Figure 6 for proper placement.

1. Scrape old gasket material from the housing (B1), cover (B2) and stop cap (B29).

2. Line up the scribe marks on the adaptor plate (P1) and actuator housing (B1) made during

actuator removal, then set the actuator housing on the adaptor plate.

3. Fasten the actuator housing (B1) to the adaptor plate (P1) using screws (P4) and lockwashers

(P10).

4. Drive the pin (B11) through the rack bearing (B7) and housing (B1) (if worn rack bearing was

removed).

5. Apply a liberal amount of lubricant to the teeth and back of the rack (B4) which contacts the rack

bearing (B7) and install the rack in the housing (B1).

6. Apply a liberal amount of lubricant to the teeth and journals of the gear (B3), then place the gear

in the housing (B1) and carefully align the teeth with the rack as shown in Figure 7.

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

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

D10480

Figure 6 – Bearing and O-ring Locations

Page 10

August 2012