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 DITCHERS AND HOLE AUGERS (Continued)
Ditcher Rolls
Carbon Steel
Primary Electrode: Page 1-24
Alternate Electrodes: Pages 1-5 or 1-3
Welding Procedures: Construct jig so roller can be
turned (Figure 2-4 1). Apply weld metal to face and to
flange where necessary. Grind high spots.
FIGURE 2-41. Hard-Facing Ditcher Rolls
Cast Iron Rollers - Preheat to 1000- 1200F and
maintain. Use electrode on page 1-14 in wide
Ditcher Drive Sprockets
transverse beads. Slow cool.
Carbon Steel
Primary Electrode: Page 1-24
Alternate Electrodes: Pages 1-5 or 1-3
2-50
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