Hi I've got an alko petrol strimmer the head has started to come away from the shaft and when I stop it I can push it back in what's causing this and how do I fix it ?
Probably something like an 'E' Clip. would of held it in place, would need to open it up, might find it inside, replace it, as it is loose. refit, and it will come off again.
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Try fixfault.com to fix grass trimmers.