SRM230 head question

[PTmowerMech]

Can someone tell me what head goes on this? And/or how to get this off? I need to clean it out and put a new head on it. (It didn't come in with a head on it)
It looks like one solid piece. I've tried quite a bit of pressure both reverse and standard thread rotation. But it won't budge.
The big one is fit's a 3/4 wrench and the small one fit's a 3/8.

 

[PTmowerMech]

I think I found it. Just not sure what to do with it. I don't have a head in stock that'll fit it. Even with the adapters that come with my heads.

 

[PTmowerMech]

I got it off. just had to put more pressure on it than i was comfortable with.

 

[ILENGINE]

reported

 

[Mickrick]

I think I found it. Just not sure what to do with it. I don't have a head in stock that'll fit it. Even with the adapters that come with my heads.
View attachment 54482

Do you know the designation of the left hand thread on that, please? I'm looking for a replacement nylok nut, if possible (my strimmer is an SRM250 but the head looks the same).

 

[PTmowerMech]

Do you know the designation of the left hand thread on that, please? I'm looking for a replacement nylok nut, if possible (my strimmer is an SRM250 but the head looks the same).

Sorry, I've forgotten all about this. I don't even remember working on it now.

And I'm not sure what you mean by designation. IIRC,

 

[Mickrick]

Sorry, I've forgotten all about this. I don't even remember working on it now.

And I'm not sure what you mean by designation. IIRC,

Designation as in M12 x 1.5 or M10 x 1.25, denoting the thread diameter and pitch. Thanks.