Airco welding of locomotive fireboxes . Page Sixteen AIRCO WELDING OFFULL-WELDED DOOR AND FLUE SHEETS THE method to be followed in preparing to weld door and fluesheets is similar to that described for full-welded fireboxes, asshown in Figure 25. In the full-welding of door and fluesheets, .however, the work is done on the inside at all the joints exceptthe one with the crown sheet. That part of the welding is to be doneon the water side, unless the radial staybolts are in the door sheet, whenthe welding must be completed from the inside. Operation 1. Fit and bolt the door or flue sheet to the
Airco welding of locomotive fireboxes . Page Sixteen AIRCO WELDING OFFULL-WELDED DOOR AND FLUE SHEETS THE method to be followed in preparing to weld door and fluesheets is similar to that described for full-welded fireboxes, asshown in Figure 25. In the full-welding of door and fluesheets, .however, the work is done on the inside at all the joints exceptthe one with the crown sheet. That part of the welding is to be doneon the water side, unless the radial staybolts are in the door sheet, whenthe welding must be completed from the inside. Operation 1. Fit and bolt the door or flue sheet to the mudring. Operation 2. Bevel both edges of the vertical joints on theinside, leaving a 3/16 opening at the bottom of the vee. See Figure26. Use an Airco cutting torch with a No. 1 tip. Now bevel thejoint with the crown sheet on the outside. The door and flue sheetsshould be flanged, as shown in Figures 27, 28 and 29. Operation 3. Tack weld the joint for an inch at Rl, Figure drop down about 10 and weld from R2 up to Rl, from R3
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