Storing Machine; Recommended Stock Items; Trouble Shooting - Tennant 3220 Operator And Parts Manual

FOOT LATCH ADJUSTMENT
Foot latch adjustment is required if machine handle
doesn't lock in the upright position and/or brush motor
continues to run while in the upright position.
Follow adjusting instructions below:
WARNING: Hazardous Voltage. Shock or
electrocution can result. Unplug machine before
servicing.
1. Lay vacuum cleaner face down.
2. Loosen foot latch screw,10mm wrench required
(Figure 16).
3. Turn adjustment bushing to realign foot latch, 16
mm wrench required. Bushing has an off-center
hole to allow for foot latch adjustment.
Adjustment
Bushing
4. Retighten foot latch screw.

TROUBLE SHOOTING

PROBLEM
Machine does not operate. p
Vacuum motor does not
operate. p
Brush does not operate.
Tennant 3220 (11- -00)
Foot Latch
Screw
FIG. 16
CAUSE
Filter bag not installed.
Faulty power cord.
Faulty ON/OFF switch.
Faulty electronic sensor system.
Loose wiring.
Building circuit breaker tripped.
Internal thermal overload sensor tripped
in vacuum motor.
Faulty electronic sensor system.
Worn carbon brushes in vacuum motor.
Defective vacuum motor.
Electronic sensor system activated
(blinking red light).
Loose or broken brush belt(s).
Defective brush motor.
Faulty electronic sensor system.

STORING MACHINE

Store machine in a dry area in the upright position.
ATTENTION: Do not expose to rain. Store indoors.

RECOMMENDED STOCK ITEMS

Refer to Parts List section for recommended stock
items. Stock Items are clearly identified with a bullet
preceding the parts description. See example below
(Figure 17):
SOLUTION
Install filter bag.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Reset circuit breaker.
Remove air obstruction. Let motor cool
for 20 minutes.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Turn off machine. Inspect brush for ob-
struction or readjust brush height.
Replace belt(s).
Contact Service Center.
Contact Service Center.
OPERATION
FIG. 17
9