TM 9-3405-215-14&P
ANNEALING THE WELDED BAND
(1)
Swing the weld lever up all the way to the "anneal" position which is marked by the letter "A". The lever will be held
in place by the bend in the drag spring.
(2)
Clamp the band just as in welding.
(3)
Set the "anneal heat" selector switch for the width of the band.
(4)
Anneal the band as explained below. CAUTION: Follow these instructions carefully.
(a)
For Carbon Blade: Press and jog the annealing switch button until the weld is a "dull cherry " to "cherry red" color.
Allow the blade to cool slowly by decreasing the jogging frequency.
(b)
For Dart Blade: Heat the blade slowly until the weld becomes a deep blue color. Continue to heat by jogging the
anneal button until the width of the blue color is one-half the length of the band exposed between the jaws . Do not
overheat or the temper of the band will be damaged. CAUTION - Do not heat beyond the "blue" stage if the
band begins to show any red color, it is too hot. Cool quickly by releasing the anneal button.
Correct annealing of Dart Blade.
(c)
For IMPERIAL BI-METAL Blade: Heat the band slowly by jogging the annealing switch button until the weld just
begins to emit light (this would be the dullest red color). The desired color may not be visible in normal room light.
Always shade the weld area with your hand. Cool the weld quickly by releasing the annealing button. NOTE: This
procedure should be followed both before and after grinding IMPERIAL BI-METAL Blades.
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