Replacing The Slider - ABB PGC2000 Operation And Service Manual

Process gas chromatograph
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See "AIR PURGING" in Section 4 for the X Purge override function. Do not perform
override until you have read Section 4 completely and you understand and can
perform the procedure properly.
To ensure the integrity of the components within the CP Valve, use the tools in CP
Valve Tool Kit 754K003-1 when assembling or disassembling the CP Valve.
1. Stop the analysis at the end of a cycle.
2. Turn off sample and air to the analyzer.
Verify that the oven is cool (ambient temperature) before removing carrier gas.
3. Turn off power and carrier gas.
4. Open the isothermal oven door.
5. Locate the valve to be repaired.

Replacing the Slider

The Slider is part of the Carrier Assembly. To ensure you have the correct slider for your application,
verify the slider part number from the Data Sheets supplied with your analyzer.
To replace the slider:
1. Perform the "Preparation and Safety" procedure.
2. Open both Carrier Assembly latches by pulling down on the end of the latches.
3. Remove the Carrier Assembly from the Valve Plate and Valve Body, being careful to keep the
latches in their open position.
4. Compare the old slider with the new slider to ensure they are the same.
5. Note the orientation of the slider's ports.
6. Remove the old slider from the Carrier Assembly.
7. Insert the new slider, ensuring that the ports are aligned in the same way as the old slider.
8. Wipe the bottom of the Valve Plate with methanol and a lint-free wipe to remove any slider
residue or contamination.
9. Insert the Carrier Assembly on the Valve Plate.
10. Close the back Carrier Assembly latch. This ensures the Carrier Assembly is locked into the hole
in the piston stem.
11. Close the front Carrier Assembly latch.
2000-OSM, F2
CAUTION
NOTE
NOTE
8-77

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