5-8 Maintenance Procedures
4. Close the source isolation valve by moving its handle counterclockwise,
to the vertical position.
To open the source isolation valve after completing a maintenance
procedure
1. Open the source isolation valve by moving its handle clockwise to the
horizontal position.
2. Close the source enclosure door, and secure it with both spring-clips.
3. Close the instrument’s access door.
Warning: The source components can be contaminated with
biohazardous and/or toxic materials. Always wear
chemical-resistant, powder-free gloves while performing this
procedure.
Warning: To avoid puncture wounds, take great care while working
with the source enclosure door open if one or both of these conditions
apply:
• An ESI probe is fitted (the probe tip is sharp).
• A corona pin is fitted (the pin tip is sharp).
Caution: Do not apply any downward force to the source enclosure door
while the door is open.
Isolation valve handle in closed position
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