Figure 38 Positioning the Upper Tube in the Union Fitting
10Holding the splitter fitting, gently insert the upper ceramic tube into the large ceramic tube coaxially, to avoid placing stress on the fragile upper ceramic tube. Lower the splitter fitting into place to engage the threads of the 1/4" Swagelok nut. Tighten
11If you do not need to replace the Large Ceramic Tube, proceed to step 19.
12Remove the Tapered Union Fitting from the bottom of the Burner.
13Slide the Large Ceramic Tube out of the Burner and remove it from the Quartz Heater Assembly.
14Insert the new large ceramic tube into the quartz heater assembly. Position a 1/4" ferrule (flat end butted up against the top of the swivel nut) onto the large ceramic tube. With the ferrule positioned against the swivel nut, approximately 0.5 cm of the large ceramic tube should extend outside of the nut. Insert the lower Burner tube into the center of the large ceramic tube and finger tighten the heater swivel nut onto the tapered union fitting.
Figure 39 Proper Ferrule Orientation to the Large Ceramic Tube
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