General Maintenance 4
Troubleshooting and Maintenance Manual 79
To Separate the GC from the MS
This procedure is used for gaining access to the IRM vials and CI calibration
vials or when relocating or storing the instrument.
Materials needed
• Ferrule, blank (5181-3308)
• Interface column nut (05988-20066)
• Wrench, open-end, 1/4-inch × 5/16-inch (8710-0510)
Procedure
1 Cool down the GC/MS interface, GC inlet, and GC oven.
2 Before separating the GC from the MS, make sure that the capillary
column in the GC oven is either disconnected from the transfer line, or has
enough slack uncoiled from the column hanger. Transportation of either
instrument requires a disconnection of the transfer line. A small
separation to access IRM or CI vials does not require disconnection of the
transfer line.
Make sure the GC/MS interface and the analyzer zones are cool (below 100 °C)
before you vent the MS. A temperature of 100 °C is hot enough to burn skin; always
wear cloth gloves when handling analyzer parts.
The use of hydrogen gas is specifically prohibited with this product.
Be sure the GC oven and the GC/MS interface are cool before turning off carrier gas
flow.
Make sure the GC/MS interface, GC inlet, and GC oven have cooled before you
remove the column. These areas can be hot enough to burn skin.
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