29
HTEC-500
Pistons and Piston Seals (periodically, usually once a year or longer)
If the mobile phase leaks more than a few ml over a 24 hour period, please change the pump seals. It is
not required to change the seal periodically when this problem does not occur. Usually the leaking fluid
drains from the pump washing port. To confirm the leaking volume, slowly push the piston of the syringe
attached to the tubing from the washing port all the way to the end. Let the pump run to verify the
leaking volume. Changing the pump pistons and piston seals at the same time is recommended. If the
piston itself does not need to be changed, at least change the piston seals. If you find any deterioration
of the piston, please replace it. Pistons and seals for maintenance are provided separately from the
HTEC-500 and require special tools which are provided with the system. Please see Appendix A for a
protocol for how to replace pump parts. Eicom also provides a maintenance service. Please contact us
for more details.
Injector Seals
If the injector is used continuously for more than a year, change the stator and stator seal. Please
contact Eicom or Rehodyne for details. If you use an autosampler for the majority of your injections, the
lifetime of the manual injector seal may be longer but the seal on the autosampler needs to be
replaced periodically. See the autosampler’s manual for details and required maintenance. Even if
there is no leakage from the seal, a worn seal may be the cause of unknown peaks on a
chromatogram.
Ordering Information
Description
Gasket (Regular)
Gasket for Platinum
Working Electrode
Graphite Electrode
Piston
Piston Seal
Precolumn Filter
Precolumn Packing
Material
Precolumn Packing
Tool
Reference Electrode
Code
GS-25
GS-25P
WE-3G
HT-PP
HT-PS
PF-03 or PF-04
AC-ODS, CA-ODS
or CH-GEL
PREPACKTOOL
RE-500
Package
3 pcs
3 pcs
2 pcs
1 pc
1 pc
3 pcs
1 bottle for more than
30 times repacking
1 set
1 pc
