46 Agilent 6500 Series Q-TOF LC/MS Maintenance Guide
2Maintenance
To replace the LC filter elements
To replace the LC filter elements
When required When back pressure is high on the LC pump or when the sensor indicates a
leak has occurred.
Tools required • Tweezers
• Wrench, ½-inch
Parts required Filter Element, 5 µm (p/n 0100-2051)
1 Stop the flow of LC solvent to the instrument.
2 Remove the front and top covers.
3 Turn off the spray chamber nebulizer pressure, drying gas temp, and
vaporizer temp (if APCI or multimode).
4 Remove the spray chamber.
5 Remove the upper left front cover to access the inlet filter assembly.
Figure 4 Inlet filter assembly
6 Remove the retaining screw at the top of the inlet filter assembly and pull
the filter assembly forward out of the bracket.
7 While holding the knurled lower part of the assembly, twist the upper part
counterclockwise until the two parts are separated.