Solinst 464 250 psi Replacement

Tools and Materials Needed

1. 464 Solenoid Valve Assembly - 250 psi (Spare) (#111743)
2. 3/32" Allen Key
3. Small Utility Knife
4. 7/64" Allen Key
5. 11/16" Wrench
6. 14 mm Wrench
7. 1/2" Wrench
8. 7/16" Wrench
9. Teflon Tape
®
10. Any suitable plastic adhesive (e.g. silicone)

Instructions

1. Turn the Control Unit off and remove the batteries.
2. Use the 3/32" Allen key to undo the four hex screws on the sides
of the Control Unit.
Hex
Screws
Panel
3. Remove the panel from the Control Unit and flip it over to access
the Solenoid Valve Assembly.
® Teflon is a registered trademark of DuPont Corp.
(Page 1 of 2)
Control Unit Solenoid Valve Assembly Replacement
Hex
Screws
Solenoid Valve
Assembly
High Quality Groundwater and Surface Water Monitoring Instrumentation
Model 464 250 psi (sold after September 2013)
464 Solenoid Valve Assembly - 250 psi (Spare)
4. Push down on the fittings to remove the three black tubes from the
Shuttle Valve Assembly, and the two clear tubes from the Solenoid
Valve Assembly (photo shows black tubes removed).
Remove
Tube
Remove
Bracket
Tubes
5. Use the 7/64" Allen Key to remove the three screws from the
bracket holding the Shuttle Valve Assembly, and carefully slide the
Shuttle Valve Assembly out from the bracket.
Remove
Tubes
Shuttle Valve
Assembly
Continued on page 2...