58 Agilent 6500 Series Q-TOF LC/MS Maintenance Guide
2Maintenance
To replace the electrospray nebulizer needle in the analytical or the reference nebulizer sprayer
To replace the electrospray nebulizer needle in the analytical or the
reference nebulizer sprayer
When required When the needle is plugged. Common symptoms of a plugged needle are
increased LC back pressure or off-axis spraying or dripping from the nebulizer
or when the reference nebulizer needle is not spraying.
Tools required • Adjustment fixture (p/n G1946-20215)
• Gloves, clean
• Pliers, long nose (p/n 7810-0004)
• Wrench 3-mm, open-end (p/n 8710-2699)
• Wrench ¼-inch x 5/16-inch, open-end (p/n 8710-0510)
Parts required Electrospray nebulizer needle kit (includes needle, ferrule, and needle holder,
p/n G2427A)
1 Install the nebulizer in the adjustment fixture.
2 Examine the needle for signs of wear or corrosion. If the needle appears
corroded or damaged, continue to the next step.
Figure 11 Electrospray nebulizer needle in needle holder
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