Bruker RS - Page 7

7
ZTKS0156 / Z31820 / Rev.: 03
Table of Contents
6.3.1 After a Quench ..................................................................................................... 107
6.3.2 Replacement of the Helium Level Sensor ............................................................ 109
6.3.3 Procedure in case of an alarm signal ................................................................... 110
6.3.4 Procedure in case of Cryogenic Refrigerator failure ............................................ 111
7 Maintenance...............................................................................................113
7.1 Safety ................................................................................................................... 113
7.2 Cleaning ............................................................................................................... 114
7.3 Maintenance Timetable ........................................................................................ 114
7.4 Maintenance Work at the Cryogenic Refrigerator ................................................ 116
7.4.1 Service Kit ............................................................................................................ 116
7.4.2 Flex Lines ............................................................................................................. 117
7.4.3 Replacement of the Rotary Valve and the Cold Head.......................................... 118
8 Disassembling ...........................................................................................121
8.1 Safety ................................................................................................................... 121
8.2 Disassembling Work............................................................................................. 123
8.2.1 De-energizing ....................................................................................................... 123
8.2.2 Warming up from 4.2 K to 300 K .......................................................................... 124
8.2.3 Breaking the Vacuum ........................................................................................... 125
8.2.4 Removing of the Helium Flow System ................................................................. 126
8.2.5 Removing the Cryogenic Refrigerator Parts......................................................... 126
8.2.6 Removing of the RT Tube and the Nitrogen Tube ............................................... 127
8.2.7 Assembling of the Transportation Lock ................................................................ 129
8.2.8 Remount the Magnet Stand ................................................................................. 131
8.2.9 Prepare the Cryostat for Transportation............................................................... 131
A Appendix ....................................................................................................133
A.1 Warning Signs ...................................................................................................... 135
A.2 Figures ................................................................................................................. 137
A.3 Tables................................................................................................................... 141
A.4 Glossary / Abbreviations ...................................................................................... 143
A.5 Technical Data USR Service................................................................................ 145
A.6 Index..................................................................................................................... 153