(Image translation) Electric control of the swift [9]

Chinese汉语译成English英语 技术/工程设计 机械/机械工程 Bonnell Innerspring machine (electric control)

Hello, I wonder if anybody could help me translasting what is inside the green squares (1,2,3 & 4) in this image (link below) into English.

I'm translating the instruction manual of a Bonnell innerspring machine and in the section of electric control show the different panels and circuits and this ine is a about the control of the swift.

I hope you can help me.
Thanks!

Link: http://forum.wordreference.com/attachment.php?attachmentid=8...