Panasonic MC-UG581 Operating Instructions Manual page 24

Groove
Ouverture
Ranura
Changing Dust Bag
- 24 -
Spread out new dust bag, taking care
not to tear bag.
Attach new dust bag onto bag holder
by holding cardboard portion and
pushing back.
Reinsert tab on end of dust cover
into groove on dust compartment.
Press dust cover into place without
pinching dust bag.