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5
Maintenance
Replacing the corona needle
Replacing the corona needle
Schedule
Perform this procedure when symptoms indicate poor corona needle
performance and cleaning the needle does not restore performance.
Equipment List
Steps
1 Before beginning any steps in this maintenance procedure, put on clean,
2 Pull the corona needle assembly out of the spray chamber.
3 Remove the needle collar from the corona needle shaft.
4 Remove the old corona needle from the collar.
5 Install a new corona needle, with its integral ferrule, in the collar.
6 Turn the collar onto the needle holder and tighten it by hand.
Do not hit the tip of the corona needle. The tip can bend, which can decrease
C AU T I O N
the system.
7 Reinstall the corona needle assembly in the spray chamber.
112
• Clean, powder-free nitrile gloves
• Corona needle
powder-free nitrile gloves.
Agilent Revident LC/Q-TOF System User Guide
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