HP 5890 SERIES II Service Manual page 127

12. Loosen the anode retaining nut on the cell
weldment.
13. Remove the anode from the cell weldment.
14. Clean the anode using methanol, acetone, or
methalyne chloride and/or a light sandpaper.
15. Rinse the anode with methanol.
16. Remove the anode retaining nut and asso-
ciated ferrule from the cell weldment.
17. Inspect the nut and ferrule to determine if they
should be replaced.
18. Install either the old nut and ferrule or their re-
placement on the cell weldment.
19. Insert the anode into the nut and ferrule until it
bottoms.
20. Tighten the nut and ferrule to secure the anode
in place.
21. Carefully slide the ECD cover over the anode shaft and anode, and install it on the detector.
22. Slide the locking tab on the ECD cover forward, capturing the cover over the anode shaft of the
cell weldment.
23. Tighten the locking screw on the ECD cover
24. Connect the cell collector lead from the cell anode to the PCB interconnect.
25. Position the detector cover over the detector.
26. Secure the detector cover to the instrument with a screw.
27. Restore power to the instrument.
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SVC 4- 57
ANODE WELDMENT
ANODE
RETAINING
NUT
LOWER HEATER BLOCK