Tennant 5680 User manual

5680
*330450*
www.tennantco.com
Walk--Behind Scrubber
Operator Manual
330450
Rev. 08 (09-2006)
North America / International
The Safe Scrubbing AlternativeR
(Electric)
(000000--029999)

This manual is furnished with each new model. It provides necessary operation and maintenance instructions.
Read this manual completely and understand the machine before operating or servicing it.
This machine will provide excellent service. However, the best results will be obtained at minimum costs if:
SThe machine is operated with reasonable care.
SThe machine is maintained regularly - per the machine maintenance instructions provided.
SThe machine is maintained with manufacturer supplied or equivalent parts.
PROTECT THE ENVIRONMENT
Please dispose of packaging materials,
old machine components such as
batteries, hazardous fluids such as
antifreeze and oil, in an environmentally
safe way according to local waste
disposal regulations.
Always remember to recycle.
MACHINE DATA
Please fill out at time of installation for future reference.
Model No. --
Serial No. --
Machine Options --
Sales Rep. --
Sales Rep. phone no. --
Customer Number --
Installation Date --
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or (763) 513--2850
www.tennantco.com
FaST--PAK is a US registered and unregistered trademark of Tennant Company.
Specifications and parts are subject to change without notice.
Copyright E2000, 2002, 2004, 2005, 2006 TENNANT Company, Printed in U.S.A.

CONTENTS
1
5680 330450 (9--06)
CONTENTS
Page
SAFETY PRECAUTIONS 2...................
OPERATION 4..............................
OPERATOR RESPONSIBILITY 4...........
MACHINE COMPONENTS 5...............
CONTROL PANEL SYMBOLS 6............
CONTROLS AND INSTRUMENTS 7........
STEERING HANDLES 8................
ON-OFF KEY SWITCH 9................
SCRUB SWITCH 10....................
SCRUB HEAD STRAP (DISC HEAD) 10..
SQUEEGEE LEVER 10.................
HOURMETER 11......................
BATTERY DISCHARGE INDICATOR 11..
FaST SWITCH (OPTION) 11............
SOLUTION FLOW LEVER 12............
CIRCUIT BREAKERS 12................
SOLUTION TANK HOSE 13.............
RECOVERY TANK DRAIN HOSE 13.....
SUPPORT ARM 13.....................
STOP ARM 14.........................
SQUEEGEE DOWN PRESSURE
CAMS 14...........................
HOW THE MACHINE WORKS 15...........
FaST SCRUBBING SYSTEM (OPTION) 16..
PRE-OPERATION CHECKLIST 17..........
INSTALLING FaST PAK AGENT (OPTION) 18
STARTING THE MACHINE 20..............
FILLING THE TANKS 20...................
NORMAL SCRUBBING 22.................
DOUBLE SCRUBBING 26..................
STOP SCRUBBING 27....................
DRAINING AND CLEANING THE TANKS 28.
OPERATION ON INCLINES 32.............
STOP THE MACHINE 32..................
POST-OPERATION CHECKLIST 33.........
MACHINE TROUBLESHOOTING 34........
MAINTENANCE 36..........................
MAINTENANCE CHART 36................
LUBRICATION 38.........................
REAR CASTERS 38....................
TRANSAXLE 38.......................
BATTERIES 38...........................
CHARGING THE BATTERIES 40........
ELECTRIC MOTORS 41...................
SCRUB HEAD 42.........................
DISK BRUSH SCRUB HEAD SKIRT 42...
CYLINDRICAL BRUSH SCRUB
HEAD SKIRTS 42...................
ADJUSTING THE SCRUB HEAD
SKIRTS 42......................
REPLACING THE SCRUB HEAD
SKIRTS 42
......................
REMOVING OR REPLACING THE
SCRUB HEAD 43...................
LEVELING THE SCRUB HEAD 46.......
Page
SCRUB BRUSHES AND PADS 47..........
DISK BRUSHES 47....................
REPLACING THE DISK
BRUSHES OR PADS 47...........
CYLINDRICAL BRUSHES 51............
REPLACING THE CYLINDRICAL
BRUSHES 51....................
CHECKING AND ADJUSTING
CYLINDRICAL BRUSH
PATTERN 52..................
SOLUTION SYSTEM 54...................
RECOVERY TANK 54..................
SOLUTION TANK 55...................
FaST SYSTEM (OPTION) 56............
FaST SYSTEM FILTER SCREEN 56...
FaST SUPPLY HOSE CONNECTOR 56
FaST SYSTEM AIR PUMP FILTER 56.
SQUEEGEE 57...........................
REMOVING THE SQUEEGEE
ASSEMBLY 57......................
INSTALLING THE SQUEEGEE
ASSEMBLY 58......................
LEVELING THE SQUEEGEE 58........
ADJUSTING SQUEEGEE BLADE
DEFLECTION 59....................
SQUEEGEE BLADES 60..................
REPLACING OR ROTATING THE
REAR SQUEEGEE BLADE 60........
REPLACING OR ROTATING THE
FRONT SQUEEGEE BLADE 61.......
BELTS AND CHAINS 63...................
BRUSH DRIVE BELT 63................
STATIC DRAG CHAIN 63...............
TIRES 63.............................
PUSHING AND TRANSPORTING THE
MACHINE 64..........................
PUSHING THE MACHINE 64.........
TRANSPORTING THE MACHINE 64..
MACHINE JACKING 67....................
STORAGE INFORMATION 67..............
FREEZE PROTECTION 67.................
SPECIFICATIONS 68........................
GENERAL MACHINE
DIMENSIONS/CAPACITIES 68..........
FaST SYSTEM (OPTION) 69..............
GENERAL MACHINE PERFORMANCE 69..
POWER TYPE 70........................
TIRES 70...............................
MACHINE DIMENSIONS 71...............
INDEX 72..................................

SAFETY PRECAUTIONS
5680 330450 (6--02)
2
SAFETY PRECAUTIONS
The following symbols are used throughout this
manual as indicated in their description:
WARNING: To warn of hazards or
unsafe practices that could result in
severe personal injury or death.
FOR SAFETY: To identify actions that
must be followed for safe operation of
equipment.
This machine is designed solely for scrubbing dirt
and dust in an indoor environment. Tennant does
not recommend using this machine in any other
environment.
The following information signals potentially
dangerous conditions to the operator or
equipment. Read this manual carefully. Know
when these conditions can exist. Locate all safety
devices on the machine. Then, take necessary
steps to train machine operating personnel.
Report machine damage or faulty operation
immediately. Do not use the machine if it is not in
proper operating condition.
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep
sparks and open flame away. Keep
covers open when charging.
WARNING: Flammable materials can
cause an explosion or fire. Do not use
flammable materials in tank(s).
WARNING: Flammable materials or
reactive metals can cause an explosion
or fire. Do not pickup.
FOR SAFETY:
1. Do not operate machine:
-- Unless trained and authorized.
-- Unless operation manual is read and
understood.
-- In flammable or explosive areas unless
designed for use in those areas.
2. Before starting machine:
-- Make sure all safety devices are in
place and operate properly.
-- Check brakes and steering for proper
operation (if so equipped).
3. When using machine:
-- Go slow on inclines and slippery
surfaces.
-- Use care when backing machine.
-- Follow mixing and handling
instructions on chemical containers.
4. Before leaving or servicing machine:
-- Stop on level surface.
-- Turn off machine and remove key.
5. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves when
working on machine.
-- Block machine tires before jacking
machine up.
-- Jack machine up at designated
locations only. Block machine up with
jack stands.
-- Use hoist or jack that will support the
weight of the machine.
-- Wear eye and ear protection when
using pressurized air or water.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Use Tennant supplied or equivalent
replacement parts.
6. When loading/unloading machine
onto/off truck or trailer:
-- Turn off machine.
-- Use truck or trailer that will support
the weight of the machine.
-- Use winch. Do not push the machine
onto/off the truck or trailer unless the
load height is 380 mm (15 in) or less
from the ground.
-- Block machine tires.
-- Tie machine down to truck or trailer.

SAFETY PRECAUTIONS
3
5680 330450 (6--00)
The safety labels appear on the machine in the
locations indicated. If these or any label becomes
damaged or illegible, install a new label in its
place.
BATTERY CHARGING LABEL -- LOCATED ON
THE UNDERSIDE OF THE SOLUTION TANK.
FLAMMABLE SPILLS LABEL -- LOCATED ON
THE OPERATOR CONSOLE.
FOR SAFETY LABEL -- LOCATED ON THE
OPERATOR CONSOLE.
FLAMMABLE MATERIALS LABEL -- LOCATED
ON THE UNDERSIDE OF THE SOLUTION
TANK COVER.
353417

OPERATION
5680 330450 (6--00)
4
OPERATION
OPERATOR RESPONSIBILITY
-The operator’s responsibility is to take care
of the daily maintenance and checkups of
the machine to keep it in good working
condition. The operator must inform the
service mechanic or supervisor when the
maintenance intervals are required as stated
in the MAINTENANCE section of this
manual.
-Read this manual carefully before operating
this machine.
FOR SAFETY: Do not operate machine,
unless operation manual is read and
understood.
-Check the machine for shipping damage.
Check to make sure the machine is
complete per shipping instructions.
-Keep your machine regularly maintained by
following the maintenance information in this
manual. We recommend taking advantage
of a regularly scheduled service contract
from your Tennant representative.
-Order parts and supplies directly from your
authorized Tennant representative. Use the
parts manual provided when ordering parts.
-After operation, follow the recommended
daily and hourly procedures stated in the
MAINTENANCE CHART.
07324

OPERATION
5
5680 330450 (9--05)
MACHINE COMPONENTS
AD
E
F
G
H
I
K
C
M
L
A
B
C
J
NOP
Q
M
A. Solution tank
B. Solution tank fill opening
C. Recovery tank
D. Steering handles
E. Squeegee
F. Squeegee lever
G. Squeegee down pressure cams
H. Recovery tank drain hose
I. Solution tank hose
J. Support arm
K. Stop arm
L. Batteries
M. Scrub head
N. Scrub brush access cover
O. FaST solution system (option)
P. Heavy duty scrub head strap (Disc Head)
Q. Scrub brush idler door

OPERATION
5680 330450 (6--04)
6
CONTROL PANEL SYMBOLS
These symbols identify controls and displays on
the machine:
Key switch Circuit breaker #1--scrub head actuator
Variable flow or rate Circuit breaker #2--machine propel
Solution flow Circuit breaker #3--vacuum fan motor
Scrub brushes down and on Circuit breaker #4--left brush motor
Scrub brushes up and off Circuit breaker #5--right brush motor
Heavy scrub brush down pressure Circuit breaker #6--FaST

OPERATION
7
5680 330450 (6--04)
CONTROLS AND INSTRUMENTS
CB1
CB2
CB3
CB4
CB5
B
D
E
G
H
I
J
B
K
L
C
A
F
CB6
J
M
A. Operation label
B. Steering handles
C. On-off key switch
D. Scrub switch
E. Console height adjustment knob
F. Hourmeter
G. FaST switch (option)
H. Battery discharge indicator
I. Solution flow lever
J. Circuit breakers
K. Squeegee lever
L. Recovery tank drain hose
M. Solution tank drain hose

OPERATION
5680 330450 (6--00)
8
STEERING HANDLES
The steering handles control the machine speed
and direction.
Forward: Rotate the steering handles forward.
The further forward you rotate the steering
handles, the faster the machine will go.
Backward: Rotate the steering handles
backwards toward you.
Turning: Push the machine in the direction of the
turn with the steering handles. The machine will
turn on the swivel casters.

OPERATION
9
5680 330450 (6--00)
Stop: Release the steering handles.
The steering console height is adjustable.
Adjust: Turn the console adjustment knob
counterclockwise to loosen the knob. Move the
console up or down to the desired height. Then
turn the knob clockwise to tighten the knob, and
lock the console in position.
ON-OFF KEY SWITCH
The on-off key switch controls machine power
with a key.
On: Turn the key to the right.
Off: Turn the key to the left.

OPERATION
5680 330450 (9--05)
10
SCRUB SWITCH
The scrub switch controls the scrubbing
operations.
Lower brushes and start scrubbing: Press the top
of the switch.
Raise brushes and stop scrubbing: Press the
bottom of the switch.
NOTE: The scrub brushes do not start until the
steering handles are rotated forward or backward.
NOTE: The scrub switch also controls the FaST
system (option) when the FaST system is enabled
with the FaST switch.
SCRUB HEAD STRAP (DISC HEAD)
The scrub head strap increases the scrub head
pressure and puts the scrub head into heavy
scrub mode.
The heavy scrub mode is used when deep
scrubbing or floor stripping is necessary.
Start heavy scrub mode: With the scrub head in
the up position, pull out on the scrub head strap
until the scrub head drops into place. Lower the
brushes and start scrubbing.
Stop heavy scrub mode: Press the bottom of the
scrub switch. The scrub head will reset when it
raises and stops scrubbing. When it is started
again, the scrub head will operate at daily
scrubbing pressure.
SQUEEGEE LEVER
The squeegee lever controls the squeegee and
the vacuum system.
Lower squeegee and start vacuum: Move the
squeegee lever up and to the left to unlock it, and
then release the lever.
Raise squeegee and stop vacuum: Pull the lever
up and move it to the right to lock the lever in the
up position.
NOTE: Raise the squeegee before reversing the
machine.

OPERATION
11
5680 330450 (6--04)
HOURMETER
The hourmeter records the number of hours the
machine has been powered on. This information
is useful when servicing the machine.
BATTERY DISCHARGE INDICATOR
The battery discharge indicator shows the charge
level of the batteries.
When the batteries are fully charged, the indicator
on the far right is lit. As the batteries discharge,
the indicator will move along the display to the
left. Recharge the batteries when the indicator
flashes.
NOTE: The battery discharge indicator will not
reset from the flashing indicator unless the
batteries have been fully charged.
FaST SWITCH (OPTION)
The FaST switch (option) enables the FaST
(Foam Scrubbing Technology) system. When the
FaST system is enabled, it is turned on and off
with the scrub switch
Enable the FaST system: Press the top of the
FaST switch.
Enable conventional scrubbing: Press the bottom
of the FaST switch.
NOTE: Disable the FaST system before using the
machine for conventional scrubbing.
NOTE: The FaST system will not start until the
steering handles are rotated forward or backward.
NOTE: Do not enable the FaST system with
conventional cleaning detergents in the solution
tank. Drain, raise and refill the solution tank with
clear cool water only before operating the FaST
system. Conventional cleaning detergents/
restorers may cause failure to the FaST solution
system.

OPERATION
5680 330450 (6--04)
12
SOLUTION FLOW LEVER
The solution flow lever controls the amount of
solution flow to the floor.
Increase: Push the lever forward.
Decrease: Pull the lever backward.
NOTE: A solenoid valve dispenses the solution to
the scrub head. The valve opens when the
steering handles are rotated forward, and closes
when the steering handles are released in neutral
position.
NOTE: When using the FaST system (option), the
solution flow lever is nonfunctional. The FaST
system flow rate is pre--set.
CIRCUIT BREAKERS
The circuit breakers are resettable electrical
circuit protection devices. They stop the flow of
current in the event of a circuit overload. Once a
circuit breaker is tripped, reset manually by
pressing the reset button after the breaker has
cooled down.
If the overload that caused the circuit breaker to
trip is still there, the circuit breaker will continue to
stop current flow until the problem is corrected.
The circuit breakers are located on each side of
the operator console.
The chart shows the circuit breakers and the
electrical components they protect.
Circuit
BreakerRating Circuit Protected
CB1 10 A Machine power
CB2 25 A Machine propel
CB3 25 A Vacuum fan motor
CB4 30 A Right brush motor
CB5 30 A Left brush motor
CB6 10 A FaST (option)

OPERATION
13
5680 330450 (6--00)
SOLUTION TANK HOSE
The solution tank hose is used to drain the
solution tank. The drain hose plug is removed by
turning the plug latch to loosen the plug and
pulling the plug out of the drain hose. The drain
hose is plugged by placing the hose plug in the
end of the hose and turning the plug latch to
tighten the plug.
RECOVERY TANK DRAIN HOSE
The recovery tank drain hose is used to drain the
recovery tank. The drain hose plug is removed by
turning the plug latch to loosen the plug and
pulling the plug out of the drain hose. The drain
hose is plugged by placing the hose plug in the
end of the hose and turning the plug latch to
tighten the plug.
SUPPORT ARM
The support arm holds up the solution tank when
the tank is lifted. The support arm engages when
the solution tank is lifted all the way open. The
arm is released by pulling up on it.

OPERATION
5680 330450 (6--00)
14
STOP ARM
The stop arm prevents the solution tank from fully
closing when the tank is lowered. Push the arm in
to lower the solution tank completely.
SQUEEGEE DOWN PRESSURE CAMS
The squeegee down pressure cams adjust the
squeegee deflection along the entire length of the
squeegee.
Increase: Turn the cams clockwise.
Decrease: Turn the cams counter-clockwise.

OPERATION
15
5680 330450 (6--04)
HOW THE MACHINE WORKS
The scrub components of the machine are a
solution tank, scrub brushes or pads, a squeegee,
a vacuum fan, and a recovery tank.
With conventional scrubbing, water and detergent,
from the solution tank, flow to the floor through a
solution valve to the scrub brushes or pads. The
brushes or pads scrub the floor. As the machine
moves forward, the squeegee wipes the dirty
solution off the floor, which is then picked up and
drawn into the recovery tank.
The steering handles control the direction and
speed of the machine in forward or reverse. By
rotating the steering handles forward, the machine
propels forward. By rotating the handles towards
you, the machine propels backward.
Three different widths of scrub heads and
squeegees are available for the machine.
The scrub head widths are as follows; the model
700 (700 mm (28 in)), the model 800 (800 mm
(32 in)), and the model 900 (900 mm (36 in)). The
700 mm (28 in) squeegee is used with the 700
model scrub head, as well as the 800 mm (32 in)
with the model 800, and the 900 mm (36 in) with
the model 900.

OPERATION
5680 330450 (9--06)
16
FaST SCRUBBING SYSTEM (OPTION)
The FaST (Foam Scrubbing Technology) system
operates by injecting the FaST PAK concentrate
agent (A) into the system with a small amount of
water and compressed air. This mixture creates a
large volume of expanded wet foam.
The expanded foam mixture is then dispersed
onto the floor (B) while the machine is scrubbing.
When the squeegee picks up the mixture, the
patented foaming agent has collapsed and is
recovered into the recovery tank.
The FaST system can be used with all double
scrubbing and heavy duty scrubbing applications.
Using the FaST system can increase
productivity by 30% by reducing your dump/fill
cycle. It will also reduce chemical usage and
storage space. One FaST PAK of concentrated
agent can scrub up to 1 million sq. ft.
NOTE: Do not enable the FaST system with
conventional cleaning detergents in the solution
tank. Drain, raise and refill the solution tank with
clear cool water only before operating the FaST
system. Conventional cleaning detergents/
restorers may cause failure to the FaST solution
system.
NOTE: Storage or transporting machines
equipped with FaST in freezing temperatures
requires special procedures. Check with a
TENNANT representative for advice.
B
A
The safe scrubbing alternative

OPERATION
17
5680 330450 (6--04)
PRE-OPERATION CHECKLIST
Check over this list of items before operating the
machine:
-Check under the machine for leaks.
-Check for wire, string, or twine wrapped
around the scrub brushes.
-Check the squeegees for wear or damage.
-Check the squeegee suction hose for
obstructions.
-Check the recovery tank cover seals for
wear or damage.
-Check that the vacuum fan inlet filter is
clean.
-FaST Scrubbing: Check the FaST PAK
(option) concentrate agent level, replace
carton as needed. See the INSTALLING
THE FaST PAK AGENT section of the
manual.
-FaST Scrubbing: Check that all conventional
cleaning agents/restorers are drained and
rinsed from the solution tank.
-FaST Scrubbing: Check that solution tank is
filled with clear cool water only.

OPERATION
5680 330450 (9--05)
18
INSTALLING FaST PAK AGENT (OPTION)
NOTE: Machine must be equipped with the FaST
option before the FaST PAK agent can be
installed.
1. Remove the perforated knock--outs from the
FaST PAK Floor Cleaning Concentrate
carton. Do not remove the bag from the
carton. Pull out the bag’s hose connector on
the bottom of the bag and remove the hose
cap from the connector.
NOTE: The FaST PAK Floor Cleaning
Concentrate is specifically designed for use
with the FaST system scrubbing application.
NEVER use a substitute, machine damage will
result.
FOR SAFETY: When using machine,
always follow the handling instructions
on chemical container.
2. Empty the solution tank. See the DRAINING
AND CLEANING THE TANKS section of the
manual.
NOTE: When scrubbing with the FaST system
option, use clean water only. Do not add cleaning
agents in the solution tank. Conventional cleaning
agents/restorers may cause failure to the FaST
solution system..
3. .Raise the solution tank and remove the
front cover to access the FaST PAK carton.