BP-12 4 post lift question

[upstate29353]

Hello forum i'm not sure if this is in the right spot if not please let me know. I just bought 1 a few months ago and just found the time to install it .I seen it working before it was taking down my problem is i think he kept some parts to it i'm looking for pictures to see how the lock system is setup like pics of the air rods and how they connect up they are missing and dont see how they attach to the beams and what not thanks for all the help in advance..

Also the reason i asked in this forum is i seen where members were talking about having one..