Hoover U3721 Owner's Manual page 22

Agitator brushes
Disconnect cleaner from
electrical outlet and detach
hose from cleaner before
checking brushes.
When agitator brushes are worn
they should be replaced.
To check condition of brushes,
move the edge of a card across
agitator opening while turning
agitator. To maintain cleaning
effectiveness, replace brushes
if they do not touch card.
What to buy
When purchasing new brushes,
ask for HOOVER part No.
48445015.
On some models, the agitator
takes four brushes; other
models have a two-brush
agitator. Note the number of
brushes your cleaner needs.
How to replace
Disconnect cleaner from
electrical outlet.
Remove bottom plate, belt and
a itator following directions in
1. Hold agitator as shown.
Turn end plates in opposite
.