Question about Black & Decker Black and Decker Mm575 18" Mulching Lawn Hog Electric Lawn Mower

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Need wiring schematic for B&D MM575 mower switch

Purchased new switch for B&D MM575 mower. Installed it and now shorts out house electrical system. Does anyone have any idea how it should be wired?

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Posted on Jan 02, 2017

  • 19 Answers

SOURCE: My electric mower (B&D Lawn

probably a loose or out of balance blade

Posted on Jul 05, 2011

  • 1 Answer

SOURCE: Mower tripped outlet breaker - wiring schematic available?

I had a MM875 go out after some months' service -- it actually went out with a bit of a bang. The problem was a shorted circuit; the weather was hot and the "solid state switch" on top of the motor shorted out. This part wasn't a switch but a bridge rectifier. The original part was specified a bit close to its actual working limits so I bought another (from Radio Shack, no less) that was higher rating -- something like 30 amps at 200 or 400 volts. ITs worked for years.

If it is a bridge then it will have two terminals labelled '~' and one each with the '+' and '-'. The plus and minus go to the motor (keep those connections the same as the original) and the others go to the supply wires.

Posted on Jul 15, 2008

SOURCE: Black and Decker MM525 hard wiring diagram

I have the same mower and same problem. (I have already spent over $75 replacing the burned switch annually. ) The black wires carry the power. The orange wire is the common. The red and white wires are used to stop the motor quickly when the switch is released. To bypass the switch, connect the two black wires together with a wire nut. Disconnect and tape off the red and white wires. Now the mower will run whenever it is plugged in. It will take a few seconds longer for the blades to stop turning when unplugged. See this thread for a detailed discussion of the switch wiring. There is a picture of it near the bottom:
http://www.ridgidforum.com/forum/showthread.php?t=8535

If plugging and unplugging gets too annoying, I may look for a plug-in switch I can plug between the extension cord and the mower plug. Until then, happy mowing!

Posted on Jul 19, 2008

  • 5 Answers

SOURCE: Wiring problem

I'm sure you can find parts many places online. I got mine from www.ToolPartsDirect.com. If you type in the model number, you can see a complete parts diagram. The switch is part 9 on the diagram; about 15 bucks. When I was mowing, I smelled a burning electric parts type of smell. The motor brushes wore down from use. Now my wife can't tell me I don't mow enough!

Posted on Jul 24, 2008

  • 1 Answer

SOURCE: need wire schematic for starter switch

I am holding the switch part (INDAK 681064) with the black pushbutton switch to the right.
The two wires on the top are Red then White. The two wires on the bottom are both black.

Posted on Jun 22, 2009

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1 Answer

Short battery charge


The B & D MM575 mower is not battery operated nor is it cordless. CMM1200 CMM1936 CMM1836 are the currently available cordless mowers. You can buy a battery from B &D, they list it here:
http://blackanddecker.com/ProductGuide/Product-Details.aspx?ProductID=22989

tom

May 10, 2010 | Black & Decker Black and Decker Mm575 18"...

2 Answers

Mower tripped outlet breaker - wiring schematic available?


I had a MM875 go out after some months' service -- it actually went out with a bit of a bang. The problem was a shorted circuit; the weather was hot and the "solid state switch" on top of the motor shorted out. This part wasn't a switch but a bridge rectifier. The original part was specified a bit close to its actual working limits so I bought another (from Radio Shack, no less) that was higher rating -- something like 30 amps at 200 or 400 volts. ITs worked for years.

If it is a bridge then it will have two terminals labelled '~' and one each with the '+' and '-'. The plus and minus go to the motor (keep those connections the same as the original) and the others go to the supply wires.

Jun 16, 2008 | Black & Decker 19" Electric Lawnhog...

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