Shimadzu IonFocus Instruction Manual page 64

5 Maintenance
5
Mount the ESI coupling in the ESI probe section.
1
2
42
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IonFocus Unit
Insert the ESI coupling 1 into the ESI probe section.
If the O-ring of the ESI coupling is damaged, replace it.
"7.3.1 Ionization Unit" P.71
Tighten the ESI coupling 1 by hand and then turn it with a wrench to adjust the
projection of the tip.
Make the tip of the capillary ASSY project about 0.5 to 1 mm.