Maintenance Section 5 Page 23
MSD SABER SERIES SHEARS
GENERAL GUIDELINES FOR
BUILD UP AND
HARDSURFACING
The steel used in LaBounty Saber Series™ shears is
stronger and more durable than ever. However, this
steel requires special attention during maintenance.
Pay special attention to the preheat and post-heat
instructions and follow them exactly. Review the fol-
lowing guidelines for build-up and hardsurfacing the
shear. Detailed instructions on maintaining specifi c
areas of the shear are on the following pages.
PREHEAT
Preheat the general surrounding area to at least
200°F (100°C) to remove moisture from the base
material.
Before ANY thermal process is applied to the shear
steel, including welding, tack welding, torch cutting,
and air-arcing, preheat the area within 6" (150 mm) of
the local area to a minimum of 400°F (200°C) and a
maximum of 450°F (230°C). This includes adding and
removing lifting lugs.
Preheat must be uniform throughout the material
thickness and maintained until all welding has been
completed. Avoid cyclic heating and large tempera-
ture swings. Preheating may be done by localized
gas torches, or thermal strip blankets.
POST HEAT
If preheat has dropped below 400°F (200°C) within
6 inches (150 mm) of the weld area, post heat to
400° (200°C) and wrap with heat blanket to allow
it to cool slowly to the ambient temperature. Plan
to perform build-up and hardsurfacing at the end of
the day or when there will be adequate time for the
welded areas to cool before placing the shear back
into service.
HANDLING AND STORAGE
OF WELD MATERIALS
Follow the weld manufacturer’s handling and stor-
age instructions closely. Make sure the electrodes
or wire are free of moisture. Moisture can cause
cracks and porosity in the weld and the base metal
beneath the weld.
WELD QUALITY
Quality and attention to detail in welding can signifi -
cantly affect the life of the shear. Stanley LaBounty
strongly recommends that only qualifi ed and certi-
fi ed welders perform this work. Make sure the weld
consumables and base material are clean, dry, and
free of grease, paint, dirt, or any other foreign sub-
stance that may harm the weld.
Preheat and post-heat instructions must be followed
exactly. Failure to do so can compromise warranty
coverage.
Using improper build up and hardsurfacing products
may result in premature wear or increased potential
for cracking and may compromise warranty
coverage.
NOTICE
NOTICE
NOTICE
