148 • Maintenance
EAGLE 2 Operator’s Manual
remains lodged in the sensor body, carefully remove it with tweezers.
Figure 30: Lamp Window Location
13. If the spring in the lamp cavity comes out, place it back into the lamp cavity.
14. Hold the lamp in one hand being careful not to touch the lamp window with your
fingers.
15. With the other hand collect a small amount of aluminum oxide powder on a cotton
swab.
16. Use this cotton swab to polish the PID lamp window. Use a circular motion, applying
light pressure to clean the lamp window. Do not touch the lamp window with your
fingers.
Figure 31: Polishing the Electrode Lamp Window
17. Continue polishing until you can hear a squeaking sound made by the cotton swab
moving over the window surface. This usually occurs after about 15 seconds of
polishing.
18. Remove the residual powder from the lamp window with a clean cotton swab. Take
care not to touch the tip of the cotton swab that is used to clean the lamp as this may
contaminate it with finger oil.
19. Ensure the lamp is completely dry and any visible signs of contamination are
removed before reinstalling.
Lamp Window
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