I have inherited a Black

50:1
Farmerbear

Testimonial: "Thanks for the info. I've been trying to get the right mix for ages."

Source: i have a petrol black

hello possum...

First, remove the spool from the head by stopping the engine and cutting attachment first. Then, grasp the body and insert your thumb into the tab on the head, then rotate around and press on the second tab. After this, press down on the spool and release it from the housing. Now, remove the star nut. Here is a video showing the steps http://www.wonderhowto.com/how-to-replace-line-stihl-trimmer-head-264449/ Joe Thanks for choosing Fixya!

Source: How do you replace the

I had the same problem, the black knob on the bottom just slips round not unscrewing the bolt inside. I had to lever the knob off and then undo the bolt with a spanner. The re-threading instructions are in this manual : http://manuals.homelite.com/documents/2588

Source: homelite hlt25cs centre of line

ok, looks that this is an electric trimmer or saw. this is not recomendable that you replace it because is a Double Insulated product and to replaced after repair it has to be tested so it will not shock you. I do not recommend you do it. take it to a service center or if is cheaper get a new one.

Source: I do not have a