Reinstalling the Filaments
1. Install the lens insulator and lens insulator screw. Be sure the step in the lens
insulator fits into the cut-out in the source.
2. Place a filament assembly into the source with the notched side down. Be
sure the assembly is fully seated in place.
3. Place the two screws into the screw holes and tighten each screw evenly. Do
not over tighten.
4. Turn the source assembly over and repeat the steps for the other filament.
Reassembling the External Source
Reassembling the external source essentially reverses the process used to
disassemble the source.
Reinstalling the Ion Volumes
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Summary of Contents for 4000 GC
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