Flowserve StarPac 3 - Manual (Page 39)

39
StarPac Intelligent Control System FCD VLENIM0066-05 04/14
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14.12 Spool Valve Cover Replacement
The spool valve cover incorporates a coalescing filter element in a two-piece cover. This protects the spool valve cham-
ber from dirt and moisture and provides a low back pressure vent for exhaust air from the spool valve.
To replace the filter in the spool valve cover, refer to Figures 14 and 19 and proceed as outlined below. The following
tools are required:
• Phillips screwdriver
1. Remove spool cover by removing the screw and sliding the cover assembly backwards until the tab is clear
of the slot. The sheet metal cover may be removed and cleaned with a brush or by blowing out with compressed air
(Figure 14).
Figure 19: Spool Valve Cover Assembly
2. Remove the O-ring from around the hydrophobic filter element and set aside (Figure 19).
3. Remove the molded filter element by pulling it straight out of the chamber cover vent piece.
4. Install O-ring into base of chamber cover vent piece as shown in Figure 19.
5. Place new molded filter element in to the chamber cover vent piece. This filter element provides part of the
track to secure the O-ring installed in the last step.
6. Place spool valve shroud onto spool valve cover.
7. Place the spool valve cover assembly in place by setting it on the ramp and sliding it until the tab seats in the
slot (Figures 14 and 19) and secure with an 8-32 screw.
14.13 Spool Valve Replacement
The spool valve routes the supply air to one side of the actuator while venting the opposite side (see Figure 1). The
position of the spool valve is controlled by the driver module.
Replacing the Spool Valve
To replace the spool valve, refer to Figures 14, 15 and 24 and proceed as outlined below. The following tools are re-
quired:
• Phillips screwdriver
O-ring
Hydrophobic
Filter
Spool
Valve
Cover
Spool
Valve Shroud