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MM675 electric mower will not start. Is this a circuit breaker issue?

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  • owen5188 Jul 17, 2010

    MM675 electric mower will not start. Is this a fuse issue? Where is this fuse in the mower located and how do I reset it? Someone at home depot told me that there is a simple button to push. Can someone provide a diagram/manual showing how to troubleshoot this?

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Yes there is a switch.Its called "dead man switch" Inside the black plastic housing that the "dead man" switch comes out of is a plunger switch that is pushed down by the "dead man" switch when it is pulled back. The plunger switch has four wires connected to it and is the "real" safety switch. If that plunger doesn't go down the circuit is not complete and the mower doesn't go. --------- you cut the wires to the plunger switch and connect them directly to each other. The plunger switch is built by INTAK, but searching for the part number directly on the Internet doesn't work very well. But it turns out other people have had problems with the plunger switch in Black & Decker electric mowers. Following that lead the replacement switches can be bought from DeWalt (which apparently owns Black & Decker). you can buy this switches for $12. the on/off switch built into the handle. Basically it is a "dead man" switch which only allows the mower to run while you hold the spring backed handle in place. Taking your hands off the handle immediately cuts power to the mower. This can be a lifesaver (literally) if you notice you have just run over something like a rock or piece of glass which you missed in the yard before you started mowing. check out. thanks.

Posted on Jul 18, 2010

  • owen5188 Jul 19, 2010

    I tried to mow one last time. It started out slowly, then got to full engine power. It mowed OK for a few minutes, then I released the bar to turn it off. Instead of the usual, immediate shut-off, that is, the blade stops turning and the engine is quiet, the engine slowly wound down and eventually stopped. I could not restart the engine by pulling on the bar. This sounds different from what you described, which a dead-man's switch function: complete on or off. Is there something else to explain why the mower slowly died, then could not be restarted? Is there some other reset button? I couldn't find any under the black plastic housing. Do I need to remove the orange deck to access something? Wish I had a schematic of the entire machine.



    Hope you can help me out further.

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This could a fuse has blown either on the plug socket or within the mower

Posted on Jul 17, 2010

  • owen5188 Jul 17, 2010

    how do i check or reset fuse? where is fuse located?

  • Simon Swales
    Simon Swales Jul 19, 2010

    At the end of the cable you plug into your mains electric socket The head you can remove by removing the screws and replacing the fuse inside it.

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