7
Maintenance
Simple Repairs
Metering Seal and Plunger
When
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
#
1
1
1
1
Preparations
• Select "Start" in the maintenance function "Change piston".
• Remove the front cover.
1
Remove the two capillaries from the metering-head
assembly.
98
Part number
Description
5063-6589
Metering seal (pack of 2) for 100 µl analytical head
Metering seal (pack of 1) for 900 µl analytical head
5063-6586
Metering plunger for 100 µl analytical head
5062-8587
Metering plunger for 900 µl analytical head (only if scratched or contaminated)
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.