Varian 4000 GC, Hardware Operation Manual

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4. Check the position of the multiplier so it is centered under the holding
bracket. Be sure the notch in the multiplier cover is aligned with the throat of
the multiplier. Visually check for any particles and remove if found. The cover
is designed to have a tight fit and requires a small amount of force to push
onto the mount.
5. Push the cover straight into place.
6. Reinstall the two screws and tighten.
•
Go to ”Reinstalling the Analyzer Assembly” on page 44.
•
Go to “Turning On the Mass Spectrometer” on page 46.
Replacing the Damping Gas Getter
The getter in the damping gas line removes water and contaminants from the
damping gas helium supply. It has a limited life, the length of which is dependent
on the amount of material to which it has been exposed.
To replace the getter, order a replacement kit (Part number 03-931124-91 Kit,
Getter Replacement). Detailed instructions for replacing the getter are contained
in this kit.
Replacing the Turbomolecular Pump
To replace a Turbomolecular Pump, order a replacement kit (Part number 03-
931119-91 Kit, Turbo Replacement, V301). Detailed instructions for replacing the
pump are included in the kit.
Tools Required
•
Phillips Head Screwdriver
•
L-Shaped 6 mm Allen wrench (provided in 4000 MS Ship Kit)
•
Screen Pick (provided in 4000 MS Ship Kit)
1. Go to “Turning Off the Mass Spectrometer” on page 34.
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