Table of Contents 5
7 Routine maintenance ............................................................................ 7-1
Maintenance schedule ..................................................................................... 7-1
Safety and handling ......................................................................................... 7-2
Vacuum pump maintenance ........................................................................... 7-3
GC interface maintenance .............................................................................. 7-3
Source maintenance ......................................................................................... 7-5
Inner source chamber assembly maintenance ............................................... 7-6
Required materials ...................................................................................... 7-9
Withdrawing the inner source chamber assembly from the source ....... 7-10
Removing the chamber assembly from the source handle ...................... 7-14
Disassembling the chamber assembly ..................................................... 7-15
Cleaning ion burn from the inner source chamber assembly components ......
7-21
Ultrasonically cleaning the chamber assembly components .................. 7-23
Assembling the inner source chamber assembly ..................................... 7-24
Fitting the inner source chamber assembly to the source handle .......... 7-32
Inserting the inner source chamber assembly into the outer source ..... 7-33
Degassing the ion source assembly .......................................................... 7-37
Outer source maintenance ............................................................................ 7-38
Required materials .................................................................................... 7-39
Removing the outer source assembly from the instrument .................... 7-40
Disassembling the outer source ................................................................ 7-42
Disassembling the re-entrant coupling mechanism ................................ 7-56
Disassembling the probe contact assembly ............................................. 7-56
Disassembling the inner source contact support assembly .................... 7-58
Disassembling the ion chamber ............................................................... 7-60
Disassembling the contact rail assemblies .............................................. 7-62
Cleaning ion burn from the outer source assembly components ............ 7-64
Ultrasonically cleaning the outer source assembly components ............ 7-65
Assembling the re-entrant coupling mechanism ..................................... 7-66
Assembling the probe contact assembly .................................................. 7-66
Assembling the inner source contact support assembly ......................... 7-67
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