Flowserve 3200MD User Manual download pdf (Page 22)

User Instructions - Digital Positioner 3200MD LGENIM0059-09 12/13

9. Remove the plastic board cover by removing the three retaining

screws. (See Figure 14.)

10. Disconnect the ﬂ exible tubing from the barbed ﬁ tting at the

driver

11. Use the ¼ " nutdriver to remove the barbed ﬁ tting from the driver

module assembly.

12. Unplug the two wiring connections that link the driver module

assembly to the main PCB assembly.

13. Feed the two wires on the driver module back into the driver

module compartment so that they stick out the driver module

opening (See Figure 11). This will allow the driver module to

thread out without tangling or cutting the wires.

14. Grasp the base of the driver module and turn it counterclockwise

to remove. After it is threaded out, carefully retract the driver

module from the housing.

15. Remove the barbed ﬁ tting from the side of the new driver mod-

ule using the ¼ " nutdriver.

16. Verify that the O-ring is in place on the top of the new driver

module. Lay the wires back along the side of the driver module

as shown in Figure 11 and hold the wires in position by hand.

17. Gently insert the driver module into the driver module compart-

ment in the housing. Turn the driver module clockwise to thread

it into the housing. Continue rotating the driver module until it

bottoms out.

18. Once the driver module has bottomed out so that the threads

are fully engaged, rotate the driver module counter clockwise

until the ﬂ at on the driver module and the ﬂ at on the housing are

aligned. This will align the screw hole for the next step.

19. Verify that the nylon gasket is in the counter bore in the driver

module retaining screw hole as shown in Figure 13.

20. Insert a driver-to-housing screw into the driver housing through

the counterbored hole in positioner main housing. Tighten with a

Phillips screwdriver.

21. Reach through the main compartment into the driver module

compartment of the positioner and install the barbed ﬁ tting on

the side of the driver module using the ¼ " nutdriver.

! NOTE: Do not mix the barbed ﬁ tting with those from older

Logix positioners. Older models contain oriﬁ ces that will not

work in the Logix 3200MD model. Oriﬁ ces are brass-colored,

barbed ﬁ ttings are silver-colored.

22. Reconnect the ﬂ exible tube coming from the regulator to the

barbed ﬁ tting.

23. Feed the driver module wires into the main chamber of the hous-

ing, and connect them to the main PCB Assembly.

24. Verify that the three O-rings are in the counterbores on the

machined platform where the spool valve block is to be placed

(Figure 25).

25. Carefully slide the spool into the connecting clip on the top of

the driver module assembly.

26. Carefully slide the block over the spool, using the machined

surface of the housing base as a register (Figure 13). Slide the

block toward the driver module until the two retaining holes line

up with the threaded holes in the base.

27. Install two spool-valve screws and tighten securely with a Phil-

lips screwdriver (See Figure 13).

28. Slide the spool valve cover assembly over the spool valve until

the tang engages into the housing slot. Install spool valve cover

screw and tighten securely (See Figure 12).

29. Install the plastic board cover. Insert the three retaining screw

through the plastic cover into the threaded boss and tighten

evenly, using a Phillips screwdriver. Do not overtighten (See

Figure 15).

30. Reconnect power and air supply to the positioner and perform a

stroke calibration.

31. Reinstall all covers.

Figure 15: Main PCB Assembly

Main PCB

Analog Output Board

Pressure Sensor Board

Regulator

Plastic

Board

Cover

Main PCB

Retaining

Screws

Plastic Cover

Retaining Screws

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Flowserve 3200MD User Manual Page 22

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