Filament Alignment; Ion Source Header Pin Schematic - Agilent Technologies VS Series Operation Manual

24. Clean the mating surfaces of the spectrometer body and header with Isopropyl alcohol
and a clean lint free wipe.
25. Install the new header with the six existing screws. Torque to 10.2 N-M (90 IN-LB).
26. On the PCB, use the resistance meter to verify an open circuit between any two of the
six ion source header pins (except FIL-1 to FIL-1 and FIL-2 to FIL-2 which should be 0.3
Ohms or less). Also verify an open circuit between the body of the spectrometer and any
of the ion source header pins (Figure B-73). If there is continuity (short circuit) at any of
the points, remove the header and inspect for shorting.
B-48
VS Series Component Leak Detector
Figure B-72 Filament Alignment
Reuse the cover on the old header assembly when it is shipped
NOTE
back to Agilent.
The cones of the Belleville washers should all point to the head
NOTE
of the screw.
Figure B-73 Ion Source Header Pin Schematic