Vicon H-1240 Trapeze Rake

[Luquon]

I have a Vicon H-1240 8 wheel trapeze Rake (Trapeze meaning it doesn't have trailing ground wheels but is attached only to the three point linkage) I have had great difficulty in setting it up correctly and also in folding it up so as to get through gateways as it is inclined to fold too low. It does a very gentle job with virtually no loss of leaf but needs careful adjustment to get right and I can't work out the various tweaks needed.
I have a parts bool (attached) Does anyone have an operators manual or access to one?

 

[flywheel]

Quick look on ebay

 

[Luquon]

Thankyou for that Flywheel.
The freight makes it less attractive to New Zealand but I've ordered one along with a parts book so you've been a great help.