What purpose does the "trane" serve?

[Tropical Z]

I just shoot em,i don't take em apart!

 

[Doug 29]

Could you possibly mean CRANE??? That holds the cylinder assembly.

 

[Tropical Z]

I was told "trane"but maybe its crane.

 

[Mike Irwin]

Well, my Trane heats and cools my house...

 

[don't shoot it's me]

It holds the trylinder to the frame