Hallo oilystairs. I don't know if you have already have all the answers regarding your MF 65. The 65 has a double clutch which consists of the transmission and pto clutches. The clutch pedal travels through 2 stages. If adjusted correctly, about halfway down it disengages the transmission. Up to that point the pedal pressure should be fairly light. Further down there will be an increase in pedal pressure. With the pedal depressed completely down, the pto shaft and hydraulic pump will be disengaged. When you repair the hydraulic pump, you will see that the pump is driven by the front half of the pto shaft. By moving the pto lever backwards to the 'engine pto' position, the rear half of the pto is engaged. With the pto engaged the tractor can be stopped or driven while the pto remains running. This type of pto is called a 'live pto'. With the pto lever moved forward to the 'ground pto' position, the pto shaft will only turn when the tractor is moving. In this position the pto is driven off the diff pinion and is independent of the engine. In this case the pto can only be engaged with the tractor stopped. In this position the pto speed is proportional to the tractor's or ground speed.
The 65 is an excellent tractor for baling. I think you have a problem with your baler if the pto cannot turn it. If the size of your baler is within the power range of your tractor, you should not have any problems. We also used to bale with a 65 with the 56 hp 203 Perkins and it pulled a New Holland baler. Later we also had a 165 with the 60 hp 212 Perkins. Both tractors did this job easily.
Regards.
Epie de Jongh. Paarl, Western Cape, South Africa