4.7.1 Closing the source isolation valve
To close the source isolation valve before starting a maintenance procedure:
Warning:
To avoid personal contamination with biohazards, toxic materials, and corrosive
materials, wear chemical-resistant gloves when performing this procedure.
1.
Prepare the instrument for working on the source (see
Preparing the instrument for working
).
Warning:
To avoid burn injuries, take great care while working with the source
enclosure open.
Warning:
To avoid puncture wounds, take great care working with the source
enclosure open if one or both of these conditions apply:
• An ESI probe is fitted (the probe’s tip is sharp).
• A corona pin is fitted (the pin’s tip is sharp).
2.
Pull the source enclosure release (located at the bottom, right-hand side) outwards, and
swing open the enclosure.
3.
Close the source isolation valve by turning its handle counterclockwise, to the vertical
position.
Figure 4–2:
Isolation valve handle in closed position
June 9, 2016, 715004990 Rev. A
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