Possible making electric chute rotator power from light feed? - Snowblower Forum : Snow Blower Forums
 
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post #1 of 4 Old 03-19-2018, 08:23 PM Thread Starter
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Possible making electric chute rotator power from light feed?

Hello all,
1st post. Own Craftsman model 247.88790 and looking to see the possibilities of using the power feed from the lighting coil to power a car power window motor (as seen on many youtube videos) to move the chute. The videos all power with a 12-18 volt DC power tool battery. The lighting feed puts out 17 volts AC. I guessing that would have to be converted to DC to operating the car window motor? Any thoughts are welcome.

Please take this the right way..I can't believe I joined a snow blower forum. My daughter (16 y/o) almost disowned me when i showed her (not cool department). I'm thinking what has my life come to ...a snow blower forum? Maybe I should get out more? lol. But I have no regrets thus far. Read a bunch of posts, got some good ideas, see the wealth of knowledge here. But I'm still not telling any friends... lol. Thanks in advance for the help.
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post #2 of 4 Old 03-19-2018, 08:37 PM
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You need to find out how many watts or amps the light coil produces, you probably can if it produces enough amps.
You'll need a regulator/rectifier added to the circuit to covert AC to DC and maintain 12-15V
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post #3 of 4 Old 03-19-2018, 08:53 PM
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Welcome to the forum! Embrace the shame There's a lot of good info here.

Using a battery helps ensure a sufficient supply of amps/watts when needed. Depending on your motor amperage/wattage draw, just the lighting coil may not be able to supply enough power.

One possibility could be a battery, connected to the coil, after converting the AC to DC, as you said. The coil could help keep the battery charged while running, and the battery could supply a bunch of amps when required. Any time you aren't turning the chute, the coil would be charging the battery.

This assumes that what the coil is putting out is a suitable voltage for keeping the battery charged, however. If you converted the coil's output to DC, you could also use a DC->DC voltage regulator to reduce the voltage to something like 13V, if you opted to use a 12V lead-acid battery.

To be honest, just using a battery is probably simpler, and stick it on the charger between uses. And for conversions like these, people have mentioned keeping some way to control it manually. If, during a storm, the motor fails, a wire comes loose, etc, you don't want to realize you've gone from a manual chute control, to NO chute control, because the motor won't turn the chute.

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post #4 of 4 Old 03-19-2018, 08:56 PM
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Two 6V SLA batteries wired in series should be plenty of power. Then trickle charge them. I use two of them for starting in a Toro 21 Personal Pace lawn mower. They are $15-$20 each, depending on Amp hrs. Or a motorcycle battery if you have the mounting space.

Remember, when repairing critical items...expensive is cheap, and cheap is expensive.
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