Ford tractor 8670 is showing error code f312. It's still operating with no noticeable problem. It may be a silinoid on the transmission.
How can this be located and fixed?

Wdsman, June 2016

May be useful (certainly the forum looks as if it will be more productive than here)

http://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=ford&th=382489

This looks juicy too:

https://www.slideshare.net/mobile/Projex/new-holland-8670-8770-8870-8970-repair-manual-download

Anon, June 2016