AGCO has them locked down pretty tight, and they don't give them away $$$$$.
Your fifty hour service should be pretty straightforward, the information should be in your owners manual which you should have received with your tractor. On my 1734e it was filters and fluids. The only complication I encountered was the necessity to remove the loader support subframe member to remove the hydraulic suction filter.
Oh it was also fun putting ten gallons of hydraulic oil in through a 1" hole behind the seat :laughing: