SF-2 ADJUST SHURFLO PRESSURE SWITCH
The ShurFlo feed pumps are equipped with a high pressure cut out switch (part no.
For all systems except the Gulfstream, the feed pump pressure switches should be set to shut off at 125 psi (8.5 bar) as follows. On the very center of the switch is a small 5/64” allen screw. Run the system on pump one and close the brine discharge valve (1/2 way 90 deg) to block the flow. Watch the pressure gauge and adjust the pressure switch to shut off at 125 psi. Repeat for pump two. Turn the allen screw clockwise to increase the cut off set point.
Gulfstream models could experience seal failures in the manifold if pressurized too high. For this reason, the pump should be removed from the system and the switch adjusted using a separate pressure gauge. If replacing a feed pump or pump head for a Gulfstream model ar- range to preset the switch before installation.
8/05/04
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