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100 F300S/F300SQ Ultraviolet Lamp System
4. Remove the extrusions. While holding the extrusion inside the casting, remove
the four screws securing the extrusion to the casting. Repeat for the extrusion on
the opposite side. Discard the old extrusions and the RF gaskets behind each.
5. Install the gasket assemblies (with extrusions) with the mesh facing outward
toward the RF screen (at the bottom of the irradiator) along with the two
cross-guide (short) gaskets behind each assembly. Install the replacement
extrusions using the same mounting screws. The extrusions should be positioned
flush to the casting and as far from the face of the lamp as the mounting screws
allow. Tighten the screws to 2.5 N-m (22 inch-lbs.) using a torque-limiting
screwdriver.
I310M/I311M Irradiator Housing Removal/Replacement
The irradiator enclosure is removed as follows:
1. Disconnect the cables from J10 and J11.
2. Place the irradiator (screen down) on a clean, level surface.
3. Remove two M3 flat head screws from each side of irradiator housing.
4. Remove four M5 truss head screws that secure the housing to the casting.
5. Remove two M5 truss head screws that secure the perforated panel to the front
of the irradiator housing.
6. Disconnect the pressure switch tubing from the perforated panel and remove the
panel.
7. Unthread the large plastic nut that secures the J10 connector to the housing, and
push the connector into the housing.
8. Lift the housing straight up to view the interior components of the irradiator, as
shown in Figure 39 on page 101.
9. Reverse these steps to reassemble.
I310M/I311M Scatter View Photoresistor Removal/Replacement
Figure 39 on page 101 shows the I310M/I311M Irradiator component locations.
1. Remove the irradiator housing.
2. Unsolder the photoresistor lead wires (blue wire next to the diode and a
blue/white wire at the top terminal.)
3. Remove the two M5x10 mm photoresistor fastening screws and remove the
photoresistor assembly.
4. Reverse these steps to replace the photoresistor assembly.