Question about Black & Decker String Trimmer Cordless 12" 18V

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How to remove and replace the plastic collar on the metal tube

I have obtained a new plastic collar and metal tube to replace the plastic collar that my son broke on our 18 volt B and D Grasshog. I am having a hard time figuring out how to remove the lower metal tube which is fastened to the motor assembly so that I can slide on the new plastic collar.
Thanks for your help.
David Jeffrey

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  • harvebauery Nov 30, 2008

    Got a new tube assembly - no problem.  Even got an exploded parts diagram!  I still am unable to get the thing off the motor.  It appears that even that will not help - it will be another problem getting the wiring out of the broken tube and then putting it thru the new one. HELP!!

  • Greg Lumpkin
    Greg Lumpkin May 11, 2010

    harvebauery, can you send me the exploded parts diagram?


5 Suggested Answers

SOURCE: black and decker 110 volt grasshog

Thanks for the effort but the problem I'm having is not electrical. It is that long grasses build up on the spindle and drag the rpm down to almost nothing. I have to clean the grass out but I can't find a way to do this without taking the case off.

Posted on Aug 21, 2008

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SOURCE: The trimmer/edger metal attachment on

Part number 243801-00 - Blade $1.19. Not too bad huh?
Here's the schematic and parts list.
Make sure you've got the right model number.
This is the CST-2000.

Posted on Apr 24, 2008

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SOURCE: Describe your Black & Decker Grasshog

The push lock on the string feeder Is sticking. Pull it off, clean it out and put it back on.

good luck

Posted on Aug 07, 2009

  • 74 Answers

SOURCE: grasshog timer

If you have the model # NST2018 then the only thing wrong is that a .30 cent retainer clip at the upper end of the spindle shaft is missing. A local hardware store should have one that will work. There should be a thin washer that will go between the sleeve bearing and the retainer clip that will be inside the housing as well.

Posted on Sep 15, 2009

  • 3 Answers

SOURCE: how do i restring my

Go to the Black & Decker website for this product, scroll down and under "Product Details" there is a tab marked "instruction manuals". There are three to choose from, but the last two have the same instructions on how to replace the spool or how to thread bulk line.

Hope this helped!

Posted on Jul 19, 2011

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I need to rewind the spring and starter pull cord. I need to understand how all the parts fit together

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2 Answers

Weed whacker

I was unable to get that ring off also... I was able to pull plastic side apart far enough to pull motor out and "rewire" it. Even fit back in when I was done... just barely. and was very gentle...

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Jul 24, 2008 | Black & Decker String Trimmer Cordless 12"...

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