Grizzly G0806 Owner's Manual page 42

11. Inspect the weld. The welded joint should be
even across the width of the blade with no
gaps (see Figure 49).
Correct
Not Correct
Not Correct
Figure 49. Blade welded joint examples.
— If the weld is satisfactory, continue to Step
12.
— If the weld is NOT satisfactory, begin
again at Step 2.
12. Place the blade in the welding clamps with
the weld centered between the clamps and
retighten the lock levers. Correct
Note: The welding operation leaves the
blade joint brittle. Annealing allows the mate-
rial to cool in a gradual manner, giving the
weld strength and flexibility. When annealing,
the blade is heated until it turns a specific
color that is determined by the blade mate-
rial. The annealing process is unsuccessful
Not Correct
(blade breaks easily) if the weld is not heated
enough or if it is heated too much. For best
results, contact the blade manufacturer for
the proper annealing color.
13. Press and hold the annealing button until the
weld zone turns the appropriate color, then
release the button.
Note: If you cannot get the proper annealing
color from the blade manufacturer, use the
recommendations below as a baseline and
experiment from there.
—Carbon Steel ................... Dull Cherry Red
—Carbon Steel Hard Back .................... Blue
—Bi-Metal ........................................ Orange
—High Speed Steel............ Dull Cherry Red
-40-
14. Repeat Step 13 three to four more times,
allowing the weld to cool for about 30 sec-
onds between each repetition. Each time
reduce the amount of time you press the
anneal button, to successively reduce the
amount of heat.
15. Allow the blade to cool, then re-inspect the
weld.
16. Grind away the weld bead on the top and bot-
tom of the joint so that the blade is flat and
will run smoothly on the wheels and between
the blade guides.
Note: Make sure not to grind the teeth or
blade body, or overheat the blade during
grinding—this will weaken the blade. A small
amount of ticking sounds is acceptable dur-
ing cutting operations.
17. Re-clamp the blade in the welding clamps with
the joint centered, then repeat the annealing
process twice more. Each time gradually
reduce the amount of time you anneal the
weld.
18. Test the strength and flexibility of the weld by
bending the blade in an arc similar to that of
the bandsaw wheels. The blade should bend
in a smooth circular, rounded shape—rather
than a pointed fold (see Figure 50).
Correct
Not Correct
(Cut and reweld)
Figure 50. Correct blade weld bend for strength
and flexibility.
Model G0806/G0807 (Mfd. Since 12/15)