Day 2 Baling Hay In Pembrokeshire Vintage Farm Machinery 

the reason the bales are sticking together is the knife on the chamber plunger isn't sharp enough

Isn't there a knife up at the top of the bale chamber, so that when the plunger pushes the hay in it cuts it on the side? It might be damaged. Maybe that's why your bales are 'stuck together'?

Check hay dogs hay, dog springs, rollers on plunger and just put new knifes in it! The knotter is ethier billhook, billhook tenchen , twine disc or twine disc tenchen

The ram knife needs sharpening

Not enough reves on the tractor