89
Maintenance
7
Simple Repairs
Needle-Seat Assembly
When When the seat is visibly damaged
When the seat capillary is blocked
Tools required • 1/4 inch wrench (supplied in accessory kit).
• Flat-head screwdriver.
Parts required # Part number Description
1 G1313-87101 Needle-seat assy (0.17 mm i.d 2.3 µl) for G1329A/B
1 G1313-87103 Needle-seat assy (0.12 mm i.d 1.2 µl) for G1329A/B
1 G2260-87101 Needle-seat assy (0.50 mm i.d 20 µl) for G2260A
Preparations • Select “Start” in the maintenance function “Change Needle”.
• Remove the front cover.
• Use the “Needle Up” command in the “Change Needle” function to lift the needle an addition 1
cm.
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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