All 231 tubes are cut and in place. The tubes are rolled in the front tube sheet, and welded in the rear tube sheet. The reason for this is that the tubes heat up faster than the boiler and sheets. By only welding one end, the tubes can expand slightly without buckling or stressing the tube sheets.
Eric Wunz and Jerry Huck assist Brian Fleming with rolling the tubes in the the smokebox end.
A custom extension to make the job a little easier on everyone.
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