Machine Maintenance - Tennant 3220 Operator And Parts Manual

5. To stop vacuuming, raise handle to the upright
position and turn off power switch.
Electronic Sensor System
The machine's Electronic Sensor System monitors the
condition of the machine while operating. The sensor
light, located on the bag compartment lid (Figure 10),
will indicate the following conditions:
Green Light = Machine Functioning Properly.
Blinking Orange Light = Full Bag or Air
Obstruction. Replace bag or remove air
obstruction in vacuum hose.
Blinking Red Light = Brush Obstruction or
Brush Height set too low (Amp. overload).
Remove brush obstruction or readjust brush
height.
To reset sensor system, turn power switch off and then
back on again.
NOTE: The vacuum motor is also protected by an
internal thermal overload sensor. If motor temperature
gets too high, the thermal sensor will shut off motor.
Sensor will automatically reset when motor cools.
Wand Operation
The machine is equipped with a "ready to use" wand
and crevice tool.
Contact local distributor for Optional Tool Kit #604802
Kit includes: Upholstery Tool and Dusting Brush.
1. Stand machine upright. When upright, the power
to the brush motor automatically shuts off.
ATTENTION: When using the wand, keep machine
upright to prevent possible carpet damage.
2. Detach wand from retainer clip and attach crevice
tool located on carrying handle (Figure 11).
Tennant 3220 (11- -99)
FIG. 10
3. Activate ON/OFF switch.
WARNING: Flammable materials can cause
an explosion or fire. Do not pick up.
The wand's hose expands up to 2.4 m (8 ft) in
reach (Figure 12)

MACHINE MAINTENANCE

To keep machine in good working condition, simply
follow machine's daily, weekly and quarterly
maintenance procedures.
FOR SAFETY: When servicing machine, unplug
cord from wall outlet.
DAILY (Every 4 Hours of Use)
1. Replace filter bag. Do not reuse paper bags.
Empty optional cloth bag and inspect for damage.
2. Remove entangled debris from brush.
3. Inspect vacuum hose for damage and clogged
debris.
4. Inspect power cord and strain relief for damage.
Replace if necessary.
OPERATION
FIG. 11
FIG. 12
7