110 Troubleshooting and Maintenance Manual
4 General Maintenance
5 Separate the source heater assembly from the source body by removing
the two screws. The source heater assembly includes the source heater,
repeller, and related parts. (See Figure 13.)
6 Disassemble the repeller assembly by removing the repeller nut, washers,
ceramic insulators and repeller. (See Figure 13.)
7 Unscrew the interface socket from the source body. A 10 mm open-end
wrench fits the flat sides on the interface socket.
When disconnecting leads, pull on the connectors, not on the wires.
Figure 13 Replacing the heater and sensor
Filament
Filament
Repeller assembly
Repeller nut
Source radiator
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