Agilent Technologies 5975C TAD VL MSD Troubleshooting And Maintenance Manual page 147

To reinstall the heater and sensor in the ion source
Materials needed
• Gloves, clean, lint-free
• Hex ball driver, 1.5 mm (8710-1570)
• Hex ball driver, 2.0 mm (8710-1804)
• Hex nut driver, 5.5 mm (8710-1220)
• Source heater assembly (G3169-60177)
Procedure
1
2
Do not overtighten the repeller nut or the ceramic repeller insulators will break when
CA UT IO N
the source heats up. The nut should only be finger-tight.
3
4
5
6
7
8
9
5975 Series MSD Troubleshooting and Maintenance Manual
•
Large (8650-0030)
•
Small (8650-0029)
Unpack the new source heater assembly. The heater, temperature sensor,
and heater block are already assembled.
Reinstall the repeller, repeller insulators, washer, and repeller nut
(Figure 24). The resulting assembly is called the repeller assembly.
Connect the repeller assembly to the source body.
Reinstall the filaments.
Reinstall the ion source in the source radiator. See the
Reconnect the wires from the feedthrough board to the ion source.
Reconnect the heater and temperature sensor wires to the feedthrough
board.
Close the analyzer chamber.
Pump down the MSD.
General Maintenance
Operation Manual.
4
147