Thanks for that
The problem was searching online most websites said
DC04 with clutch/brush control models only
DC04 all clutched models>>>( NOT DC04 Silver/Lime, DC04 Independent (Silver/Blue), DC04 Constant Max (Silver/Lime) & (Steel/Orange), DC04 Zorbster (Silver/Purple)
added to the fact that my Fan housing and rubber ring was quite different to any of them that showed a photo of it
and they were all YV2200 models not the YV511-2 on my motor
And your even your website only mentions the Silver/Lime model,so very difficult to know what the truth was.
P.S would this DC04 Constant Max originally had an Ametek motor? As I dont know its history, I was given it for free not working