Genesis GXP 1000, Руководство по монтажу на объекте

Страница: 6 / 23

© 2016 Genesis Attachments, LLC
Genesis GXP Jaw Armor
6
GENERAL WELDING GUIDELINES
When welding around blade seats or the piercing tip tang area, maintain the factory machined
seat radius. If the rounded grooves are welded up, use a die grinder with a carbide tool to recut
these areas to their original profile. Leaving a squared edge will eventually cause structural crack -
ing. The radius provides a broader area to absorb structural stress.
Welding Ground Clamp
Disconnect all battery ground cables or shut off master battery switch, if equipped.
Failure to do so may cause excavator electrical problems, including permanent damage to
onboard computer systems.
Connect ground clamp as close as possible to the area being welded without allowing
current to pass through the pivot group, cylinder pin, cylinder
, swivel, motor, gearbox or
slewing ring.
If you are welding on the lower jaw, connect weld clamp to the lower. If you are welding on
the upper jaw, connect to the upper but not to the cylinder clevis. If needed, weld a piece of
steel to the area for the grounding clamp and cut the piece off when welding is completed.
Welding Rules
Before you begin:
• Remove adjacent blades, as preheating and welding may cause blade damage.
• Wearing an approved respirator, grind the area to clean it, removing all existing
hard-surfacing.
• Preheat area to 350˚ F (177˚ C). Maintain this temperature throughout the procedure. Do
not exceed 450˚ F (232˚ C) interpass temperature.
During welding:
• Peen each weld pass to relieve stress and harden the welds.
• Do not undercut the ends of the welds.
• Do not start or stop welds directly above a bolt hole or in the apex of the jaw.
After welding maintenance is complete:
• Cover the area with a heat blanket and allow it to cool slowly, approximately eight hours.
• Do not put the shear into operation until the welds have been allowed to cool.
Prepare the Surface
Remove all existing hard-surfacing from the upper and lower jaw areas to which the Jaw Armor is
to be applied.
If required, build-up all areas of the upper and lower jaw parent material so they are flush with the
top of the new blades.
The outer edge of these areas must be squared up The mating surfaces of the upper and lower
jaws must also be built up to conform to the Jaw Armor profile.