Flowserve 3400IQ Digital Positioner - Manual (Page 51)

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Logix 3400IQ Digital Positioner FCD LGENIM3401-00 – 06/06
flowserve.com
Figure 13: Spool Valve Cover Assembly
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1. Make sure the valve is bypassed or in a safe condition.
2. Disconnect the power and air supply to the unit.
3. Remove the driver module cover (Figure 15), using a flat bar or plate in the slot to turn the
cover.
4. Remove the spool valve cover by removing the screw and sliding the cover assembly backwards
until the tab is clear of the slot (Figure 13). The sheet metal cap, hydrophobic filter, and O-ring
should be removed with the spool valve cover. It is not necessary to take these parts out of the
spool valve cover.
5. Being careful not to lose the nylon washer, remove the Phillips-head screw that attaches the
driver module to the main housing (Figure 14).
Figure 14: Spool and Block
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