5 Maintenance
3
Remove the ESI coupling.
1
2
3
4
5
40
™
IonFocus
Unit
Open the ESI cover 1.
Loosen the male nut 2 by hand and remove it.
Loosen the ESI coupling 3 with a wrench.
Remove the knurled screw 4.
Completely loosen the ESI coupling 5, and remove it in the direction indicated by
the arrow.
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