strimmer head removal

[traclenin]

Hi i have an efco strimmer and I want to change the bump head on it for a new one.Unfortunately I cant get the old one off,whichever way I turn the head on the shaft after securing the shaft to stop it from moving.Should I be turning the head clockwise or anti clockwise to remove the head thanks in advance

[ianmunt]

Don't know this model,but its almost certainly a left hand thread and will need turning clockwise to undo.Is there some way you can give it a sharp tap in a clockwise direction,this often works when a steady twist fails

[shylock73]

A drop of penetrating oil or diesel oil alowed to soak into the thread for several minutes will also help, then unsrew anti-clockwise.

[traclenin]

Thanks very much for your answers,its appreciated.Im trying both suggestions and I have no doubt I will be cutting
grass this afternoon.Thanks