McConnel hedger linkage mount set up

[oakleaf]

The background.
A man near me bought a 6565T in 2017. Used for a short week, then he fell ill and outfit got parked up. Sadly he passed away a couple of months later.
I have now purchased the hedger from the executors and picked it up today.

The question.
As the manual could not be found and l have no previous experience of McConnel machines l would appreciate if any experts here could advise me if l have it set up ok.
The pto shaft and toplink are level .
Is the pin in the elongated hole meant to be in the centre whether working or in transport ?
Is it better to have the linkage locked or active so it stays at same height and would you have the linkage suspension switched on or off ?
Many thanks.

 

[davidroberts30]

Center

If you go on McConnell website you can find all the manuals in pdf

 

[Dog&stick]

Keep the boom reasonable distance from the cab when folded up, as when heavy braking is required, the frame& slot move. Run our linkage fixed, suspension off. In the middle off slot.

 

[Badshot]

Middle of the slot.
I set height and let it maintain it.
Although for doing verges I lower the whole hedger slightly to tip it back a bit putting the head on its roller keeping the flails clear of the ground.
I also run with lift arms different lengths or it sits very drunk with the arm out.