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7.4. Replacing the Sample Collect Valve (50-2498)
PURPOSE:
This work instruction will outline the process to replace Sample Collect Valve within a SPE-DEX 4790
Module.
TOOLS:
-
¼ inch Nut Driver
-
5/16 inch Wrench
-
Molex Pin Extraction Tool (99-0766)
-
Small Standard Screwdriver
-
Small Phillips Screwdriver
PARTS REQUIRED:
50-2498 – Sample Collect Valve
99-0766 – Molex Pin Extraction Tool
CAUTIONS:
Prior to beginning, the Controller should be turned off and the Module should have the data/power cable
unplugged.
PROCEDURE:
1.
Remove the five (5) screws from the rear of the Module using the ¼ inch Nut Driver.
2.
Remove the cover by holding the bottom of each side and pushing the bottom backwards to
disengage the front locking tabs. Lift the cover off.
3.
Locate the mounting bracket. The Sample Collect Valve is located on the rear side of the mounting
bracket.
4.
Loosen the 5/16” hexagonal nut and the screw, circled in red.
5.
Depress the locking mechanism and separate the two halves of the Molex connector.
6.
Carefully cut the head off of all the wire ties on the yellow electrical lines.
7.
The pin layout for the Molex connector half attached to the valves is shown below. Note that the
locking mechanism is shown up.
8.
Remove pins 1 and 2 for the Sample Collect Valve. Refer to the pictures below for the proper
removal technique.
Sample Collect Valve
Содержание SPE-DEX 4790
Страница 1: ...SPE DEX 4790 Solid Phase Extraction System Service Manual ...
Страница 6: ...5 Notes ...
Страница 35: ...34 18 0588 CE SPE DEX 4790 Key Pad 50 0145 CE Control Circuit Board 50 0027 03 External Nitrogen Regulator ...
Страница 39: ...38 ...
Страница 47: ...46 ...
Страница 59: ...58 8 Schematics 8 1 Nitrogen and Solvent Delivery System ...
Страница 60: ...59 8 2 Waste and Vacuum System ...