© 2020 Genesis Attachments, LLC
Genesis Rail Breaker GRB 30 39
Procedure:
Follow the General Welding Guidelines and Rules.
Determine the area to build up, using a straight-edge or
square. Jaws must not wear lower than the height of a
new blade. Use a new blade to help determine build-up
height for the jaw.
Build up the jaw to slightly higher than the original parent
material profile with E7018. Apply single passes in each
line with the grain of the steel, peening after each pass.
Protection strips, or raised areas under or around blade
seats, must be built up and maintained during build-up
procedure using E7018 or equivalent.
These areas should be maintained between blade height
and 0.010” lower than blade height. These areas protect
the bottom unused edges of the blades as well as reduce
the chance for material to catch on the bottom of the
blade during jaw open functions, which causes blades to
move in their seats.
Denting, deformation or build-up higher than blades in
these areas may cause upper jaw deflection, excessive
blade gaps, wear to blade faces and undue stress to up-
per and lower jaws.
After build-up is complete, grind material to be flush with
a new blade.
Note: Closely monitor areas above guide blade bolt
countersinks and below front two upper blade bolt coun-
tersinks. These are high-wear areas. If allowed to wear
too far, parent material starts to fold into the countersinks,
and it becomes time-consuming to clean out this area
when access is needed for blade rotation and replace-
ment.
BUILD-UP
Grind
material
flush
Build-up
weld passes
Straight edge
Areas to
be built
up
