That looks to be the same manual as the previous one posted and covers the Series 3...
I've taken a look on the internet this weekend and I think I've found one that does match mine on another site. I'll try to upload it here...
It's just a little too big to upload so I'll provide a link below.
Series 4/5 Service Manual
This looks to be it.... it's the Cub 1431/MS4F.