Solinst 464 125 psi Cleaning Instructions

Tools and Materials Needed
1. 3/32" Allen Key
2. Small Utility Knife
3. 9/64" Allen Key
4. Cotton swab
5. Distilled water
6. Any suitable plastic adhesive (e.g. silicon)
Instructions
Note: These instructions are for Model 464 125 psi Control Units
sold up until January 2016.
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.
(Page 1 of 2)
Control Unit Solenoid Valve Cleaning Instructions
Solenoid Valve
Assembly
High Quality Groundwater and Surface Water Monitoring Instrumentation
4. Use the small utility knife to break any adhesive seal that is
holding the Solenoid connector to the circuit board.
5. Carefully, pull to remove the Solenoid connector from the
circuit board.
Solenoid
Connector
6. Remove the tubing from the three fittings on the Solenoid
Valve Assembly, by pushing on the "grasping ring" on the
fitting (to release tubing) and pulling the tubing out.
Hex
Screws
7. Use the 9/46" Allen key to remove the two screws holding
the Solenoid Valve Assembly to the bracket.
Remove
Screws
Model 464 125 psi (sold until January 2016)
Fitting "Grasping Ring"
Fitting "Grasping Rings"
Continued on page 2...
Solenoid
Connector