Agilent Technologies 5975 Operation Manual page 135

Tools, spare parts, and supplies
Some of the required tools, spare parts, and supplies are included in the GC
shipping kit, MSD shipping kit, or MSD tool 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 MSD turned on or plugged into its power source
WARNING
unless you are instructed to by one of the procedures in this chapter.
Some procedures in this chapter require access to the inside of the MSD while
the power switch is on. Do not remove any of the electronics safety covers in
any of these procedures. To reduce the risk of electric shock, follow the
procedures carefully.
5975 Series MSD Operation Manual for MassHunter
and the power switch
panel of the MSD
receptacle)
General Maintenance
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