Replacing the draw-off valve 4-25
Draw-off valve/inlet manifold assembly
6. Use the 5/16-inch open-end wrench to disconnect the two stainless
compression screws from the inlet manifold (these screws connect the
inlet manifold to the inlet check valves). See the figure above.
7. Use the 7/64-inch Allen wrench to remove the two screws that hold the
draw-off valve assembly and bracket to the pump. Carefully remove the
assembly.
8. Remove the two Phillips screws that hold the draw-off valve to the
bracket.
Installing the draw-off valve
To install the draw-off valve:
1. Attach the new draw-off valve to the bracket using the two Phillips
screws. Make sure the new valve is oriented on the bracket as shown in
the figure “Draw-off valve/inlet manifold assembly” on page 4-25.
2. Reposition the draw-off valve/inlet manifold assembly onto the pump,
being careful not to pinch the stainless tubing behind the bracket. When
correctly positioned, the stainless tubing extends through the cutouts on
the sides of the bracket.
3. Secure the bracket to the pump with the two Allen screws.
Eluent line
Handle Draw-off valve
Bracket
Cutout in bracket
Allen screw (7/64-Inch)
Compression screw
Inlet manifold
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