HP 5890 SERIES II Service Manual page 30

9. Disconnect the Carrier Gas Inlet (labelled " C" )
which terminates at a fitting either at the EFS, a
chemical filter, or a mass flow controller
mounted on the flow panel.
10. Disconnect the Septum Purge Outlet (labelled
" P" ) which terminates at the splitless solenoid
valve (" normally closed"fitting) mounted inside
the flow module.
11. Disconnect the Split Vent Outlet (labelled " S" )
which terminates at a splitless solenoid valve
(normally " open"fitting) mounted inside the
flow module.
12. Remove any insulation from around the top of
the inlet.
13. Detach and remove the insert assembly from
the shell weldment using a ???- inch wrench.
14. Detach and remove the tubing nut from the fit-
ting on the shell weldment.
15. Loosen the two screws securing the insulation
cover inside the column oven.
16. Rotate the cover, freeing it from its securing
hardware, and remove the cover and three
pieces of lower insulation.
17. Remove the reducing nut, flat washer, and
anealed seal, using a 1/2- inch wrench.
18. Use a 3/4- inch wrench to loosen (but not re-
move) the retaining nut below the heated block.
19. Use a Pozidriv screwdriver to remove the two
screws securing the inlet to the instrument.
20. Gently pull the inlet up and out of its instrument
cavity.
21. Remove the retaining nut loosened in step 18.
22. Slide the heated block off of the shell weld-
ment.
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
SPLIT
VENT
CARRIER
SHELL WELDMENT
RETAINING
NUT
FLAT
WASHER
REDUCING
NUT
SVC 2- 9
SEPTUM
PURGE
INSERT
ASSEMBLY
LOWER
INSULATION
LOWER
INSULATION
COVER