Question about Electric Superwinch LP8500 Series Utility & Off Road Winch LP 8500 12 Volt DC Electr

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I have a 14 volt source but when I try the winch in either forward or reverse the voltage drops to 4 volts. The drum is not seized because you can pull the cable out easily by hand.

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Not only do you need a 12 volt supply (13.8V) to operate this winch, but you also need a.) wire large enough to carry the electrical load, and b.) a power source that has the necessary current (amps) to turn the motor.

If you have wires that are too small, they will heat up and not be able to deliver the current (amps) required by the motor. If your power source is to small - it can not supply the current required. The result of either conditions is "voltage drop". This can be explained the same way your car needs a 12 volt car battery to start. If that car battery was dead, you couldn't connect eight "D" cell batteries (8 x 1.5volts = 12 volts) together and attach to the car's battery cables and expect it to start. This is because the amount of current available in the car battery is hundreds of time greater than eight "D" cell batteries - even though when the D cells are connected in series - both systems deliver 12 volts.

If neither of the above conditions is present, then there could be an electrical problem with the drive motor itself. This could be a shorted / melted winding or other electrical connection that is not right, even if the drum spins freely.

Posted on Apr 04, 2011

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