Question about Black & Decker 19" Electric Lawnhog Mulching Mower with Rear Bag

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I need to replace a battery in the Black & Decker CMM1000 cordless lawn mover but I can't find any directions. Can someone help me?

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The battery in my CMM1000, purchased in 2003, finally gave up early in the summer of 2009. I bought a replacement battery at the local DeWalt store for about $140 including tax. The original battery was comprised of two Panasonic 12Volt, 20Amp-hour units in series. The replacement battery is comprised of two BR 12Volt, 17Amp-hour batteries in series. To replace the battery, simply remove two Torx screws toward the front on top of the black cover and two more, one on each side of the cover down next to the orange base toward the rear. It is not necessary to remove the two screws near the charge indicating meter. Cut the first two or three tiewraps holding the "throttle" cable to the push handle so as provide some slack. Lift the black cover up and over the height adjusting handle. Do that and everything else to be described here while working from the opposite side of the machine. The cover will not come all the way off and it is not necessary for it to do so. It will lift up far enough to allow removal of two pieces of styrofoam, one between the battery and the motor, the other between the battery and the inside rear of the housing, and the battery. The battery is held down by a fabric strap that is attached to the base of the machine with a screw on each side. Remove the one opposite the height adjuster. The battery will then be "loose" except for the two electrical wires that connect it to the machine. Lift and rotate the battery so as to present easy access to the terminals. I used my B&D drill motor with the appropriate socket to remove the flanged nuts retaining the cables. The battery can be removed from the machine once the cables are disconnected. Reverse the above procedures to install the new battery. Important note: The throttle cable has to go under the front styrofoam piece... the black cover will not go all the way down until the cable is in the right place. One might be tempted to push harder and that could lead to real trouble, so be sure the cable is under the styrofoam. The CMM1000 is an excellent machine in my opinion, and the ton or so that it weighs provides a good workout for me that I personally enjoy.

Posted on Aug 21, 2009

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I followed fixyourself's directions on my 6 year old CMM1000 with great success and just wanted to add the only tools needed were a T20 X 3 torque screwdriver plus a small monkey wrench to remove the nuts. My mower only had one piece of styrofoam behind the battery, so the process was simpler for me.

Posted on Aug 22, 2009

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There's a recall for this unit for convertion to cmm1200. if are where you let the service center do the job of replacing the battery & pay for it at the same time they will convert the unit to CMM1200 for free/recall. see wwwblackanddecker.com

Posted on Aug 01, 2008

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