So I need to rewire my tablesaw back from 220 to 110, and it was a long time
ago that I switched it. I'm just looking for some confirmation.
There's 4 wires that are labeled 1, 2, 3, and 4. The inside cover shows
that 1 and 3 go together, and 2 and 4. I can handle that... It's the wires
coming in from the switch that I don't know what to do with. The green is
ground, and that's cool. But nothing shows what to do with the black and
If I was a betting man, I'd bet that I connect the white wire to one of the
two 1/3 or 2/4 bundles, and the black to the other one. But does it matter
which one goes to which? Or am I totally off on this? I've got pictures,
if that would help.
Since I'm rewiring it so I can demo and sell it, it would be nice if it
didn't erupt in a ball of flames... :)
Most 120/240 motors I have seen are set to 240v by connecting #1 to the
black wire, #2 to #3, and #4 to the white wire (though the black and white
are interchangable.) To set them to 120v you connect #3 to #1 and the
black, and #2 to #4 and the white.
The idea is that 1-2 is a loop and 3-4 is a loop. In 120v they are in
parallel, and in 240v they are in series.
Your inside cover SEEMS to be in agreement with that, though I haven't seen
it; but I can say with confidence that it doesn't distinquish between black
There ARE exceptions to this scheme. My TS motor has eight wires and nearly
all of them get rearranged when changing voltages; but it still doesn't care
From the manual,You might want to look at the inside cover.
CONVERTING THE MOTOR TO 220V
Should you need to convert your machine's motor from 110V to 220V power,
there is an electrical schematic drawing on the inside
of the motor cover plate. For safety reasons, however, we do not supply
instructions for conversion. Unless you are a qualified electrician,
we do not recommend attempting this conversion on your own. If you choose to
do so, you may risk personal injury,
damage to the motor, and/or the voiding of our warranty.
We suggest you ask your local General International distributor to recommend
qualified electricians in your area (or perhaps one
of their own technicians) who can make this conversion properly and safely.
If the wiring diagram shows a 1/3 and a 2/4 connection for 110v
operation, it should also show the 1/3 pair connected either to L1 or
L2, and the 2/4 pair connected to the other.
L1 and L2 are the wires from the switch and it doesn't matter which
is the black (hot) and which is the white (neutral) wires. IOW, the
black wire can be connected to either the 1/3 or the 2/4 pair, and the
white wire can be connected to the other pair.
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