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General 90-725 - Overload Protection; Changing the Blade

General 90-725
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12
MAKE SURE THE MACHINE HAS BEEN TURNED OFF AND UNPLUGGED FROM THE POWER SOURCE BEFORE PERFORM-
ING ANY MAINTENANCE OR ADJUSTMENTS.
OVERLOAD PROTECTION
Loosen the bolt A with a 10 mm wrench and open the overload protection access door. Press on the button B to
reset the overload protection switch. Close the overload protection access door and retighten bolt A before re-
starting the machine.
Note: If the machine still does not work after resetting the overload protector, check all three fuses located inside the
electrical box and replace them as needed with matching amperage fuses.
A
B
The magnetic safety switch on this machine is equipped with an overload protection feature. To prevent an elec-
trical overload from damaging the motor, in the event of a spike in line voltage or amperage draw, the internal
overload protector will automatically be tripped, thereby cutting off power to the motor.
Common causes of such overloads:
1. Overworking the motor by attempting to remove too much material in one single pass or by feeding the work-
piece too quickly, thereby causing an increase in power consumption and a spike in amperage draw.
2. An electrical extension cord that is too long or not the correct gauge of wire, which can also cause an in-
crease in amperage draw. If an electric extension cord must be used, follow the instructions and refer to the
chart in the electrical requirements section at the beginning of this manual.
3. Overworked circuit caused by operating on a circuit that is close to its amperage draw capacity. Make sure
the circuit being used is capable of handling the amperage draw from this machine as well as any other
electrical devices operating on the same circuit. If you are unsure, consult a qualified electrician.
To reset the overload protection switch after it has been tripped proceed as follows:
CHANGING THE BLADE
There are a variety of different types of bandsaw blades on the market to suit various cutting applications. Your
results may vary based on usage, experience and personal preference. Ask your local tool dealer for suggestions
for bandsaw blades in 0.035” (0,9 mm) thickness and 3/4” (19 mm) width x 93” (2360 mm) length.
Note: Generally speaking, because one wheel height is somewhat adjustable (to allow for blade tensioning), a blade
length variation of plus or minus 1/2” from the “ideal blade length” can be accommodated.
The blades with fewer teeth per inch are best suited to cut quickly and aggressively but do have a tendency to
bind (or get stuck in the cut) if turned too sharply. Thinner blades with more teeth per inch will cut more slowly but
can cut with more precision.
Common causes of blade breakage:
• Poor blade guide or support bearing alignment and
adjustment.
• Dull teeth.
• Setting blade guard assembly too far from the work-
piece.
• Too much blade tension.
• Lumpy or improperly finished braze or weld on the
blade.
• Cutting feed rate too high.

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