Anyone ever assembled or disassembled safety on FX Royale, boss, etc

Same parts on Boss, Royale, Verminator, Bobcat I believe?

I'm just curious how this is assembled, its diagram H. It shows a grub screw (H3) that looks like it goes into the bigger end of that brass bushing. But I can't find it in the hole, it seems there's no screw inside it.

http://www.fxairguns.com/wp-content/uploads/2015/10/Royal-Drawing-and-Partlist.pdf

There's a detent on the brass bushing that gives it the two spots for safe and fire, and the spring and ball bearing go into the hole on the big side of the bushing as I understand it.

To assemble I assume you

1 Put spring in the hole and ball bearing then hold them down in their cavity

2 Slide bushing into action while making sure ball bearing and spring stay down in their cavity

3 Slide the safety arm into its holes on the brass bushing

4 Put the trigger block grub screw in place and adjust.

Am I missing anything? I can't find anything online showing assembly or disassembly of this.

This is the brass bushing I'm talking about, I am able to remove the safety lever from the brass bushing and it seems to slide back and forth and seems like it would slide out if it pushed it but don't want to lose that ball bearing and spring or miss anything.

1544043073_12589163325c083a417d2485.08252913_20181205_123904.jpg

 
I got an answer via PM by Gijs (Weatherby) big thanks to him, I had kind of brain farted on that H3 being a grub screw to hold the safety lever in place. Might as well post it for future reference I doubt he would mind.



Weatherby

"The H3 part you mentioned is the set screw to hold the safety lever in place. It is located inside the shaft and you can loosen it with a 1.5mm allen key.

Once loosened, you can slide out the safety lever itself. Nothing to it:)

The spring and ball are mounted through the hole at the opposite side of the indents.

You can slide out the shaft, but cover the breech with your hand or a cloth to prevent the ball from going airbourne.

When putting it back, put spring in the breech and the ball on top. Press ball in breech, and slide back the brass shaft. That's it:)"