Agilent Technologies 5975T LTM GC Operation Manual page 113

Table 17 Maintenance schedule (continued)
Task
Change inlet gold seal
Replace GC carrier gas supplies
* Vacuum seals other than the side plate O-ring and vent valve O-ring do not need to be lubricated. Lubricating other seals
can interfere with their correct function.
Tools, spare parts, and supplies
Some of the required tools, spare parts, and supplies are included in the
shipping kit. You must supply others yourself. Each maintenance procedure
includes a list of the materials required for that procedure.
High voltage precautions
Whenever the MSD is plugged in, even if the power switch is off, potentially
dangerous voltage (120 VAC or 200/240 VAC) exists on:
• The wiring and fuses between where the power cord enters the instrument
When the power switch is on, potentially dangerous voltages exist on:
• Electronic circuit boards
• Toroidal transformer
• Wires and cables between these boards
• Wires and cables between these boards and the connectors on the back
• Some connectors on the back panel (for example, the foreline power
Normally, all of these parts are shielded by safety covers. As long as the safety
covers are in place, it should be difficult to accidentally make contact with
dangerous voltages.
Perform no maintenance with the instrument turned on or plugged into its power
WA R N I N G
source unless you are instructed to by one of the procedures in this chapter.
5975T LTM GC/MSD Operation Manual
Every week
and the power switch
panel of the MSD
receptacle)
Every 6 months Every year
General Maintenance
As needed
X
X
4
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