If you click the link below it will take you to a video demonstration that explains step by step what you need to do to convert your Kirby into a carpet shampooer. The vacuum in the video is the Kirby Sentria, but the procedure is the EXACT same as it is on your Kirby Diamond Edition, Kirby Generation 3, G4, G5, G6, etc. All Generation models have the same process of converting the vacuum into a carpet shampooer.
Instructional Video On How To Attach The Kirby Generation Series Carpet Shampoo Attachment:
I hope that this video was helpful to you. Please feel free to request a clarification if you have any further questions about the installation, I'm always more then happy to answer any question, seriously.
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