Question about Black & Decker String Trimmer Cordless 12" 18V
I've taken it apart, and the white lever is in place and moves freely. The cogs seem to lock into position so that when I manually rotate the head, the line-feeding hub stays locked to the spinning shaft. Yet as soon as I apply power, it begins feeding line and cutting it non-stop.
the drive cable probley kinked or bent and does not drive the head the cable goes from the motor to the head take the clamp bolt out and lift the head off the cutter check the cable
Posted on Jul 30, 2008
Some of the trimmers recommend a certain size line, if you have one of these that let line out as needed, the speed at which the trimmer cuts will let out line as needed. If you have too small of line the drag for the friction let-out you will spoll all the line out. Make sure the line is the right size, They come in alot of sizes, anywhere from .060" to .125" line thickness so make sure you have the right size line!
Posted on Aug 07, 2008
SOURCE: the shaft stopped turning
I have the same problem, the B&D service tech told me that the problem is the little gear that transmit power from the motor to the spool, it is made from plastic and just melt
Posted on Nov 11, 2008
I'm gonna take a guess and say you re-spooled the line yourself. If you did you may have put too much line on the spool. The max. is 30', but I've found that that can cause jamming, which forces out more line, if not done perfectly. Reduce the amount of line by about 5 feet and you should be OK.
Posted on Apr 11, 2010
I agree with you there. I have read a few dozen complaints about the same problem, and none have been answered to my knowledge. I have not been able to find the parts to self repair either.
Posted on Apr 21, 2010
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