MacDon 1000 Operator's & Parts Manual page 39

If you choose either method one or two, the
bagger remains attached to the bale carrier.
First, lower the upper sections of the BAG
DRUM by using the hand winch. Carefully
install the specially folded plastic tube on the
holding drum. Be sure it is neatly placed. We
recommend that the inside layer only extend
two inches past the end of the holding drum.
This will protect the plastic tube from injury as
it is played out during the filling process.
Expand the holding drum with the hand winch
until plastic is snug. Over tightening could
damage the moveable section of the drum.
INSTALLED PLASTIC TUBE
39