Agilent Technologies 7000 Triple Quadrupole GC/MS, Maintenance Manual

Page: 14 / 214

14 Troubleshooting and Maintenance Manual
1
Introduction
Many parts are dangerously hot
Many parts of the GC/MS operate at temperatures high enough to cause
serious burns. These parts include, but are not limited to the:
• Inlet
• Oven and its contents
• Valve box
• Detectors
• Column nuts attaching the column to an inlet or detector
• Foreline pump
• GC/MS transfer line
Always cool these areas of the system to room temperature before working on
them. They will cool faster if you first set the temperature of the heated zone
to room temperature. Turn the zone off after it has reached the setpoint. If you
must perform maintenance on hot parts, use a wrench and wear gloves.
Whenever possible, cool the part of the instrument that you will be
maintaining before you begin working on it.
The oil pan under the standard foreline pump can be a fire hazard
Oily rags, paper towels, and similar absorbents in the oil pan could ignite and
damage the pump and other parts of the MS.
WA R N I N G
Be careful when working behind the instrument. During cool-down cycles, the GC
emits hot exhaust that can cause burns.
WA R N I N G
The insulation around the inlets, detectors, valve box, and the insulation cups is
made of refractory ceramic fibers. To avoid inhaling fiber particles, we recommend
the following safety procedures: ventilate your work area; wear long sleeves,
gloves, safety glasses, and a disposable dust/mist respirator; dispose of insulation
in a sealed plastic bag in accordance with local regulations; wash your hands with
mild soap and cold water after handling the insulation.
WA R N I N G
Combustible materials (or flammable/nonflammable wicking material) placed
under, over, or around the foreline (roughing) pump constitutes a fire hazard. Keep
the pan clean, but do not leave absorbent material such as paper towels in it.