-10-
t10499/t10500 Blade Welder
12. press and release—do not hold—the weld
button.
Note: A limit switch senses the electrical
resistance between the blade ends. If there
is an adequate amount of welded material,
the limit switch will not allow the weld button
to activate the operation again.
13. Allow the blade to cool.
14. rotate the clamp lever switch to zero to
release the clamp pressure.
15. remove the blade.
Before welding a blade back together to per-
form an internal cut, insulate the entire blade
from the metal surfaces of the bandsaw to
ensure a good flow of current through the
blade.
Correct
Not Correct
Not Correct
Correct
Not Correct
figure 17. Blade welding joint examples.
— if the weld is satisfactory, anneal the weld
as instructed in the next subsection.
— if the weld is not satisfactory, use the
blade shear to completely remove the weld
and perform the
Blade Preparation and
Welding procedures again that begin on
Page 7.
hot sparks from the blade welding opera-
tion could be thrown in all directions and
cause burns or fire.
When using the blade welder, always keep
the spark deflector over the clamps and
protect yourself from the flying sparks.
have fire extinguishing equipment readily
available.
DO NOT weld near flammables.
NOTICE
for good metal-to-metal contact between
the welding clamps and the blade, make
sure the blades and the clamps are free
from any debris, coatings, or flash before
and after each use of the welding station.
16. inspect the weld. the welded joint should be
even across the width of the blade with no
gaps (see
figure 17).
