Hancock/ Koro Spring Replacement

I need to replace the springs on a couple of my Koro (Hancock style) beaver traps. Any tricks to help simplify this?

This is posted on WCT web site- https://www.wildlifecontrolsupplies.com/pdf/KORO_Beaver_Spring_Replacement.pdf

Thanks for the info, I bought the springs there but never saw the information. Thanks again