Tennant 5680 User manual

Walk-Behind Scrubber
Operator Manual
5680
*331176*
331176
Rev. 03 (12-2013)
North America / International
(Battery
)
(SN# 10000000−
)
The Safe Scrubbing Alternative
R
To view, print or download
the latest manual, visit:
www.tennantco.com/manuals

INTRODUCTION
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:
The machine is operated with reasonable care.
The machine is maintained regularly - per the machine maintenance instructions provided.
The machine is maintained with manufacturer supplied or equivalent parts.
PROTECT THE ENVIRONMENT
Please dispose of packaging materials,
used components such as batteries
and fluids in an environmentally safe
way according to local waste disposal
regulations.
Always remember to recycle.
Model No. −
Serial No. −
Installation Date −
Please fill out at time of installation for future
reference.
MACHINE DATA
INTENDED USE
The 5680 walk behind scrubber is designed to scrub hard surfaces (concrete, asphalt, stone, synthetic,etc) in an
indoor environment. Typical applications include hotels, schools, hospitals, factories, shops, offices, and rental
businesses. Do not use this machine on carpeted surfaces. Use only recommended pads and commercially available
floor cleaners intended for machine application. Do not use this machine other than described in this Operator
Manual.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: (800) 553−8033 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 2006, 2008, 2013 TENNANT Company, Printed in U.S.A.

CONTENTS
1
5680 331176 (12−2013)
CONTENTS
Page
SAFETY PRECAUTIONS 3.................
OPERATION 6............................
MACHINE COMPONENTS 6............
CONTROL PANEL SYMBOLS 7.........
CONTROLS AND INSTRUMENTS 8......
STEERING HANDLES 9................
ON-OFF KEY SWITCH 10................
SCRUB SWITCH 11.....................
SCRUB HEAD STRAP (DISC HEAD) 11...
SQUEEGEE LEVER 11..................
HOURMETER 12........................
BATTERY DISCHARGE INDICATOR 12....
FaST SWITCH (OPTION) 12.............
ec−H2O SWITCH (OPTION) 13...........
SOLUTION FLOW LEVER 13.............
SOLUTION TANK HOSE 14..............
RECOVERY TANK DRAIN HOSE 14.......
SUPPORT ARM 14......................
STOP ARM 15..........................
SQUEEGEE DOWN PRESSURE CAMS 15
HOW THE MACHINE WORKS 16.........
FaST SCRUBBING SYSTEM (OPTION) 17.
ec−H2O SYSTEM (OPTION) 17...........
BRUSH AND PAD INFORMATION 18......
WHILE OPERATING THE MACHINE 19....
PRE-OPERATION CHECKLIST 20........
INSTALLING FaST PAK AGENT
(OPTION) 21........................
STARTING THE MACHINE 23............
FILLING THE TANKS 23.................
SCRUBBING 25.........................
DOUBLE SCRUBBING 28................
STOP SCRUBBING 29...................
DRAINING AND CLEANING THE
TANKS 30..........................
RECOVERY TANK 30....................
SOLUTION TANK 33....................
STOP THE MACHINE 34.................
MACHINE TROUBLESHOOTING 35.......
MAINTENANCE 37.........................
MAINTENANCE CHART 37...............
LUBRICATION 39.......................
REAR CASTERS 39.....................
TRANSAXLE 39.........................
Page
BATTERIES 40.........................
CHECKING THE ELECTROLYTE
LEVEL (WET / LEAD ACID
BATTERIES ONLY) 40...............
CHECKING CONNECTIONS /
CLEANING 40.......................
CHARGING THE BATTERIES 41..........
CIRCUIT BREAKERS 43.................
ELECTRIC MOTORS 43.................
SCRUB HEAD 44.......................
DISK BRUSH SCRUB HEAD SKIRT 44....
CYLINDRICAL BRUSH SCRUB HEAD
SKIRTS 44..........................
ADJUSTING THE SCRUB HEAD
SKIRTS 44..........................
REPLACING THE SCRUB HEAD
SKIRTS 44..........................
REMOVING OR REPLACING THE
SCRUB HEAD 45....................
LEVELING THE SCRUB HEAD 48........
SCRUB BRUSHES AND PADS 49.........
DISK BRUSHES 49......................
REPLACING THE DISK BRUSHES
OR PADS 49........................
CYLINDRICAL BRUSHES 52.............
REPLACING THE CYLINDRICAL
BRUSHES 52.......................
CHECKING AND ADJUSTING
CYLINDRICAL BRUSH PATTERN 54......
FaST SYSTEM (OPTION) 56.............
FaST SYSTEM MAINTENANCE 56........
FaST SYSTEM FILTER SCREEN 57.......
FaST SUPPLY HOSE CONNECTOR 57....
ec−H2O SYSTEM (OPTION) 58...........
ec−H2O MODULE FLUSH
PROCEDURE 58....................
SQUEEGEE 59.........................
REMOVING THE SQUEEGEE
ASSEMBLY 59......................
INSTALLING THE SQUEEGEE
ASSEMBLY 60......................
LEVELING THE SQUEEGEE 61..........
ADJUSTING SQUEEGEE BLADE
DEFLECTION 62....................

CONTENTS
5680331176 (12−2013)
2
Page
SQUEEGEE BLADES 63.................
REPLACING OR ROTATING THE
REAR SQUEEGEE BLADE 63........
REPLACING OR ROTATING THE
FRONT SQUEEGEE BLADE 65.......
BELTS AND CHAINS 66.................
BRUSH DRIVE BELT 66.................
STATIC DRAG CHAIN 66................
TIRES 67...............................
PUSHING AND TRANSPORTING
THE MACHINE 67...................
PUSHING THE MACHINE 67.............
TRANSPORTING THE MACHINE 68......
MACHINE JACKING 69..................
STORAGE INFORMATION 69............
FREEZE PROTECTION 70...............
FLUSHING ANTIFREEZE FROM
ec−H2O MODULE 71................
SPECIFICATIONS 72.......................
GENERAL MACHINE DIMENSIONS/
CAPACITIES 72.....................
GENERAL MACHINE PERFORMANCE 73.
FaST SYSTEM (OPTION) 73.............
ec−H2O SYSTEM (OPTION) 73...........
POWER TYPE 74.......................
TIRES 74...............................
MACHINE DIMENSIONS 74..............

SAFETY PRECAUTIONS
3
5680331176 (12−2013)
IMPORTANT SAFETY INSTRUCTIONS − SAVE THESE INSTRUCTIONS
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.
The following information signals potentially
dangerous conditions to the operator. Know when
these conditions can exist. Locate all safety
devices on the machine. Report machine damage
or faulty operation immediately.
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 operator manual is read and
understood.
− Under the influence of alcohol or
drugs
− While using a cell phone or other
types of electronic devices
− Unless mentally and physically
capable of following machine
instructions.
− If it is not in proper operating
condition.
− In areas where flammable
vapors/liquids or combustible dusts
are present.
− In areas that are too dark to safely see
the controls or operate the machine
unless equipped with operating lights.
− In areas with possible falling objects.
2. Before starting machine:
− Check machine for fluid leaks.
− Make sure all safety devices are in
place and operate properly.
3. When using machine:
− Use only as described in this manual.
− Go slowly on inclines and slippery
surfaces.
− Wear non−slip shoes.
− Reduce speed when turning.
− Use care when reversing machine.
− Keep children and unauthorized
persons away from machine.
− Do not carry passengers on machine.
− Do not allow machine to be used as a
toy.
− Always follow safety and traffic rules.
− Report machine damage or faulty
operation immediately.
− Follow mixing, handling and disposal
instructions on chemical containers.
− Follow site safety guidelines
concerning wet floors.
4. Before leaving or servicing machine:
− Stop on level surface.
− Set the parking brake (if so equipped).
− Turn off machine and remove key.

SAFETY PRECAUTIONS
5680331178 (12−2013)
4
5. When servicing machine:
− All work must be done with sufficient
lighting and visibility.
− Keep work area well ventilated.
− Avoid moving parts. Do not wear loose
clothing, jewelry and secure long hair.
− Block machine tires before jacking
machine up.
− Jack machine up at designated
locations only. Support machine with
jack stands.
− Use hoist or jack that will support the
weight of the machine.
− Do not power spray or hose off
machine.
− Disconnect battery connections before
working on machine.
− The use of incompatible battery
chargers may damage battery packs
and potentially cause a fire hazard.
− Inspect charger cord regularly for
damage.
− Do not disconnect the charger DC
cord from the machine receptacle
when the charger is operating. Arcing
may result. If the charger must be
interrupted during charging,
disconnect the AC power supply cord
first.
− Avoid contact with battery acid.
− Use a hoist or adequate assistance
when lifting batteries.
− Battery installation must be done by
trained personnel.
− All repairs must be performed by a
trained service mechanic.
− Do not modify the machine from its
original design.
− Use Tennant supplied or approved
replacement parts.
− Wear personal protective equipment
as needed and where recommended in
this manual.
For Safety: wear hearing protection.
For Safety: wear protective gloves.
For Safety: wear eye protection.
For Safety: wear protective dust mask.
6. When loading/unloading machine
onto/off truck or trailer.
− Drain tanks before loading machine.
− Lower scrub head and squeegee
before tying down machine.
− Turn off machine and remove key.
− Use ramp, truck or trailer that will
support the weight of the machine and
operator.
− 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.
− Set parking brake after machine is
loaded (if so equipped).
− Block machine tires.
− Tie machine down to truck or trailer.

SAFETY PRECAUTIONS
5
5680331176 (12−2013)
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.
Located on the underside of the
solution tank. Located on the operator
console.
Located on the
operator console.
Located on the
underside of the
solution tank cover.
353417
WARNING LABEL −
Flammable materials or
reactive metals can
cause explosion or fire.
Do not pick up.
FOR SAFETY LABEL −
Read manual before
operating machine.
WARNING LABEL − Batteries
emit hydrogen gas. Explosion or
fire can result. Keep sparks and
open flame away. Keep covers
open when charging.
WARNING LABEL −
Flammable materials can
cause explosion or fire. Do
not use flammable
materials in tank.

OPERATION
5680331176 (9−06)
6
OPERATION
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)
ec−H2O System Module (option)
P. Heavy duty scrub head strap (Disc Head)
Q. Scrub brush idler door

OPERATION
7
5680331176 (09−08)
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−vacuum fan motor
Solution flow Circuit breaker #3−machine propel
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
Circuit breaker #6−ec−H2O

OPERATION
5680331176 (09−08)
8
CONTROLS AND INSTRUMENTS
CB1
CB2
CB3
CB4
CB5
B
D
E
G
I
J
K
B
L
M
C
A
H
CB6
K
N
F
A. Operation label
B. Steering handles
C. On-off key switch
D. Scrub switch
E. Console height adjustment knob
F. Hourmeter
G. FaST system on/off switch (option)
ec−H2O system on/off switch (option)
H. ec−H2O system indicator light (option)
I. Battery discharge indicator
J. Solution flow lever
K. Circuit breakers
L. Squeegee lever
M. Recovery tank drain hose
N. Solution tank drain hose

OPERATION
9
5680331176 (9−06)
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
5680331176 (9−06)
10
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
11
5680331176 (09−08)
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/ec−H2Osystem (option) when the
FaST/ec−H2Osystem is enabled with the
FaST/ec−H2Oswitch.
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
5680331176 (9−06)
12
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
13
5680331176 (09−08)
ec−H2O SWITCH (OPTION)
The ec−H2O switch (option) enables the ec−H2O
(electrically converted water) system. When the
ec−H2O system is enabled, it is turned on and off
with the scrub switch.
Enable the ec−H2O system: Press the top of the
ec−H2O switch.
Enable conventional scrubbing: Press the bottom
of the ec−H2O switch.
NOTE: Disable the ec−H2O system before using
the machine for conventional scrubbing.
NOTE: The ec−H2O system will not start until the
machine starts scrubbing.
NOTE: Do not enable the ec−H2O system with
conventional cleaning detergents in the solution
tank. Drain, raise and refill the solution tank with
clear cool water only before operating the ec−H2O
system. Conventional cleaning detergents/
restorers may cause failure to the ec−H2O
solution system.
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 or ec−H2O system
(option), the solution flow lever is nonfunctional.
The FaST and ec−H2O system flow rates are
pre−set. The ec−H2O module has optional flow
rate settings. If solution flow adjustments are
required, contact an Authorized Service Center.

OPERATION
5680331176 (12−2013)
14
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
15
5680331176 (9−06)
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
5680331176 (12−2013)
16
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
17
5680331176 (12−2013)
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.
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.
ec−H2O SYSTEM (OPTION)
The ec−H2O (electrically converted water) system
operates by producing electrically activated water
for cleaning.
Normal water passes through a module where it is
oxygenated and charged with an electric current.
The electrically converted water changes into a
blended acidic and alkaline solution forming a
neutral pH cleaner. The converted water attacks
the dirt, breaks it into smaller particles, and pulls it
off the floor surface allowing the machine to easily
scrub away the suspended soil. The converted
water then returns to normal water in the recovery
tank.
The ec−H2O system can be used with all double
scrubbing applications.
NOTE: Do not enable the ec−H2O system with
conventional cleaning detergents in the solution
tank. Drain, raise and refill the solution tank with
clear cool water only before operating the ec−H2O
system. Conventional cleaning detergents/
restorers may cause failure to the ec−H2O
solution system.
NOTE: Storage or transporting machines
equipped with ec−H2O in freezing temperatures
requires special procedures. Check with a
TENNANT representative for advice.
B
A

OPERATION
5680331176 (12−2013)
18
BRUSH AND PAD INFORMATION
For best results, use the appropriate brush or pad
for the cleaning application. Listed below are
brushes and pads and the applications for which
each is best suited.
NOTE: The amount and type of soilage play an
important role in determining the type of brush or
pad to use. Contact a Tennant representative for
specific recommendations.
Polypropylene brush (Cylindrical and Disk) −
General purpose polypropylene bristles lift lightly
compacted dirt without scuffing high-gloss coated
floors.
Nylon brush (Cylindrical and Disk) − Softer
nylon bristles are recommended for scrubbing
coated floors. Cleans without scuffing.
Super AB brush (Cylindrical and Disk) − Nylon
fiber with an abrasive grit to remove stains and
compacted dirt. Aggressive action on any surface.
Performs well on buildup, grease, or tire marks.
High productivity stripping pad (Black) − For
aggressive stripping of heavy finishes or sealers,
or for very heavy duty scrubbing. This pad can
only be used with the grip pad driver, not the
tufted pad driver.
Stripping pad (Brown)− For stripping of floor
finish to prepare the floor for recoating.
Scrubbing pad (Blue) − For medium to
heavy−duty scrubbing. Removes dirt, spills, and
scuffs.
Buffing pad (Red) − For light duty scrubbing
without removing floor finish.
Polishing pad (White) − For maintaining highly
polished or burnished floors.