Can't get the head off a Homelite ST-145 String Trimmer.

Vintshave

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May 7, 2020
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Trying to replace the string on my trimmer. Watched some videos but it seems like the end knob won't unscrew even with a good deal of force. Am I missing something?
stringtrimmer.jpeg
 

StarTech

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Feb 19, 2020
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Most likely you going to need to cut the plastic knob off the bolt as it is seized. I have seen this on several of these over the years where they over tighten themselves and seize. I personally got an old ST285 that did it eve nwith a new knob then I started using anti-seize compound on it which seems to cure the problem.

BTW that know is already worn out and allowing moisture into the area of the bolt and threads.
 

StarTech

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Feb 19, 2020
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Black knobs are normal right hand threaded and red knobs are left hand threaded. As I said just plain stick sometimes even when new ones are installed and this one is worn out and probably has lost the seal over the hex head screw (bolt).
 
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