124 Agilent 1200 Series Autosampler Reference Manual
4 Repairing the Autosampler
Metering Seal and Plunger
Frequency Poor injection-volume reproducibility
Leaking metering device
Tools required 1/4 inch wrench (supplied in accessory kit).
4 mm hex key (supplied in accessory kit).
3 mm hex key (supplied in accessory kit).
Parts required Metering seal 5063-6589 (pack of 2) for 100 µl analytical head
Metering seal 0905-1294 (pack of 1) for 900 µl analytical head
Metering plunger 5063-6586 for 100 µl analytical head
Metering plunger 5062-8587 for 900 µl analytical head
(only if scratched or contaminated)
Preparations for this
Procedure
Select “Start” in the maintenance function “Change piston” (see “Change
Piston” on page 88).
Remove the front cover.
1 Remove the two capillaries from the metering-head
assembly.
2 Remove the two fixing bolts, and pull the head assembly
away from the sampler. Notice that the closed side of the
metering head faces upwards.
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