Agilent Technologies 7000 Triple Quadrupole GC/MS, Maintenance Manual

Page: 111 / 214

General Maintenance
4
Troubleshooting and Maintenance Manual 111
Reinstallation
1 Unpack the new source heater assembly (G3170-60177). The heater,
temperature sensor, and heater block are already assembled.
2 Reinstall the repeller, repeller insulators, washer, and repeller nut
(
Figure 13 ). The resulting assembly is called the repeller assembly.
3 Connect the repeller assembly to the source body with the two screws and
washers.
4 Reinstall the filaments.
5
Reinstall the ion source in the analyzer chamber.
6
Reconnect the wires from the feedthrough board to the ion source.
7
Reconnect the heater and temperature sensor wires to the feedthrough
board.
8
Close the analyzer chamber.
9
Pump down the MS. See the Agilent 7000 Series Triple Quad GC/MS
Operation Manual .
C A U T I O N
Always wear clean gloves to prevent contamination when working in the analyzer
chamber.
C A U T I O N
Do not overtighten the repeller nut or the ceramic repeller insulators will break when
the source heats up. The nut should only be finger-tight.
WA R N I N G
The analyzers, GC/MS interface, and other components in the analyzer chamber
operate at very high temperatures. Do not touch any part until you are sure it is cool.
C A U T I O N
Make sure you use an antistatic wrist strap and take other antistatic precautions
before touching analyzer components.