Removing an aftermarket pushpin properly?

[Turbonium]

This is probably bordering on a silly question, but I just want to be sure: how do I remove a pushpin for an aftermarket cooler? I have this Cooler Master Vortex Plus cooler, and for reasons I won't get into here, I have to remove one of the pushpins. They are pictured here (black parts, on the right):

Pulling them out seems a bit forced to say the least.

 

[ParanoidPander]

Twist in the direction of the arrow and lift up...

 

[aigomorla]

flathead driver... allign in groves... twist in direction arrow points.. then pull up... pull the black part back up.... twist back so it can relock when you push down again.

 

[smackababy]

I've never removed a push pin without breaking it. =( They are stupid anyway.

 

[Turbonium]

I've never removed a push pin without breaking it. =( They are stupid anyway.

I don't care if I break them, given they were defective to begin with (I ordered replacements - I just want to remove these ones without damaging the motherboard).