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4.2.3 Aligning the Downstream Transducer (cont.)
4. Before proceeding, verify that the valve and insertion mechanism are fully bolted in place (see Figure 77
below). Each stud should extend far enough beyond its nut to allow the alignment tool to rest on the stud. Fit
the alignment fixture over the nozzle studs so that the two studs straddling the centerline on the nozzle are
inserted into the holes on the fixture of the corresponding flange size and rating (3", 150# or 300#).
Alignment Tool Leveling Wheel Rotated
So That Bubble is Centered Between Tick
Marks When Mounted On Two Bolts
Straddling Nozzle Centerline
Extended Range Downstream
Transducer Alignment Tool Placed Over 2 Nozzle/Valve Studs
5. Adjust the leveling wheel so that the bubble in the level is centered between the two tick marks on the vial.
6. Remove the alignment fixture from nozzle studs.
7. Place two sets of studs, washers and nuts into the flange at the top of barrel assembly, straddling the alignment
mark. Nuts and washers should not be installed on the side of the flange with the serrated raised face.
Model T17 Installation Guide
Figure 77: Verifying the Transducer Alignment
Figure 78: Bubble Level
Chapter 4. Inserting T17 Transducers into the Pipe
67
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