If you don’t receive a favorable response in these forums…you might try your Kubota dealer…who likely has the WSM (WorkShop Manual) in his library or computer and can copy it for you.
When I first acquired my M4700 I needed a schematic and called Messicks, talked to the Svc Mgr and he emailed one to me. I buy parts from them whenever possible, even if not the absolute least-expensive or if it requires freight charges, because of the helpful attitude they have.