278 1220 Infinity II LC System User Manual
11
Maintenance and Repair
Autosampler
Exchanging the Needle Seat Assembly
When When the seat is visibly damaged
When the seat capillary is blocked
Tools required Description
Wrench, 1/4 inch (supplied in HPLC Tool-Kit)
Screwdriver, flat-head
Parts required # p/n Description
1 G1313-87101 Needle-seat assy (0.17 mm i.d. 2.3 µL)
Preparations • Select Start in the Tools function in LMD Software Change Needle
• Remove the upper front cover.
• Use the Needle Up command in the Change Needle function to lift the needle an additional
1cm.
1
Disconnect the seat-capillary fitting from the injection
valve (port 5).
2
Use a small flat-head screwdriver to ease out the needle
seat.
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