Specifications

General Maintenance 4
5975 Series MSD Troubleshooting and Maintenance Manual 145
To remove the heater and sensor from the ion source
Materials needed
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)
• Hex ball driver, 1.5 mm (8710-1570)
• Hex ball driver, 2.0 mm (8710-1804)
• Hex nut driver, 5.5 mm (8710-1220)
Procedure
1 Vent the MSD.
2 Open the analyzer chamber.
3 Remove the ion source from the source radiator. See the Operation
Manual.
4 Remove the filaments.
5 Remove the repeller assembly (Figure 24). The repeller assembly includes
the source heater assembly, repeller, and related parts.
6 Remove the repeller nut, washer, repeller insulators, and repeller.
You do not need to remove the heater and temperature sensor from the
heater block. The new source heater assembly includes all three parts
already assembled.