Stanley MSD 1000 Safety, Operation & Maintenance Manual page 74

MSD SABER SERIES SHEARS
LOWER SHEAR BUILD UP
AND HARDSURFACING
continued
NOTICE
• Keep the outside passes at least 1/4"(6 mm) back
from the blade seat and outer edges.
• Stagger the ends of the welds and do not end a
weld adjacent to a blade bolt hole. See Figure 5-38.
• Use a grinder to taper the ends of each weld down
to the base material. Grind marks should go with the
grain.
• Do not undercut the ends of the weld with the
grinder.
10. Use a similar technique to hardsurface the sides
of the nose plate. Establish a 45º diamond pattern
of approximately 1-1/2" (38 mm) (see Figure 5-39).
Again, use the build-up rod to lay down the pattern
and use the hardsurface rod on top. Use the air-
operated slag peener to peen each pass to relieve
weld stress and remove slag.
11. If the temperature within 6" (150 mm) of the
weld area has dropped below 400°F (200°C) dur-
ing the weld process, post heat this area to 400°F
(200°C).
12. Wrap with a heat blanket and allow the welded
area to cool slowly to the ambient temperature. The
shear should not be put back into service until it has
cooled completely.
Page 36 Section 5 Maintenance
CROSSHATCH PATTERN
DO NOT WELD EDGES
FIGURE 5-38
FIGURE 5-39
STAGGER WELDS