Bissell 3990 SERIES User Manual page 14

M
aintenance and care
Replace drive belt
1. Unplug the vacuum from electrical outlet.
2. Press the brush roll on/off pedal in the
on position.
3. With rotating floor brush removed from
vacuum cleaner (Steps 1-4 of check
rotating floor brush and drive belt),
grasp old drive belt and remove from
motor pulley. Discard the old drive belt.
4. Loop new drive belt over motor pulley
and loop the bottom edge of the belt
under the belt disengager. Loop the other
end of the belt over the rotating floor
brush in the space between the bristles.
NOTE: It is important that you use only
genuine BISSELL replacement belts. Generic
belts may not meet the exact specifications
required to keep your vacuum operating at
its peak performance. The use of unbranded
belts could lead to early failure of the
vacuum and could void your warranty.
5. Pull the rotating floor brush firmly
into position, stretching the drive belt
and place ends of rotating floor brush
down into the slots on sides as shown.
Alignment of brush ends in slots may be
necessary to fully insert the brush.
6. Turn rotating floor brush by hand several
times in the direction of motor pulley. If
properly installed, drive belt will center
itself on rotating brush crown.
7. Insert front edge of brush cover, rotate
into place, and snap 3 latches.
Replace lightbulb
1.
Unplug the vacuum from electrical outlet.
2.
Using a flat bladed screwdriver, pry the tab
on the left and right side out and pull out to
remove the lens.
3. Remove the bulb from the socket by
grasping the bulb and pulling gently. Install
the new bulb by pushing it gently into the
socket until the bulb snaps into place.
4. Reposition the lens and snap it back
into place.
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4.
Motor Pulley
Belt
Disengager
2.
3.
4.
8 0 0 . 2 3 7 . 7 6 9 1
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