Labounty CP 80 Safety, Operation & Maintenance Manual page 41

CONCRETE PULVERIZERS
ATTACHMENT BUILD-UP AND
HARDSURFACING
(CONTINUED)
4. Apply a bead of Amalloy 814H rod or equivalent directly
on top of each of the underlayment beads to create a 45º
cross-hatch or "diamond" pattern on the approved sur-
faces of the attachment. Space the beads approximately
1½ to 2" apart. It is important to use an air-operated slag
peener on each pass of weld to relieve stress.
5. Taper the ends of each hardsurface bead by grinding
in line with the cutting edges. Do not undercut the weld
with the grinder.
6. When welding and grinding is complete, peen the
welded area until it is shiny or until the peener cannot
dent the weld anymore (typically 5 to 10 minutes). This
will harden the welded area.
7. When fi nished, be sure to cover the reworked teeth
area with a heat blanket to allow it to cool slowly.
DETAIL A
(UPPER JAW SIMILAR)
FIGURE 4-8
BASE PLATE
DETAIL B
(BOTH SIDES)
(UPPER JAW SIMILAR)
BLADE SEATS
(BOTH SIDES)
OUTER TINES
Maintenance Section 5 Page 13