Tennant SweepSmart S20 ELECTRIC User manual

S2
0
*9006704*
9006704
Rev. 04 (4−2014)
N
orth America / International
(Battery
)
Sweepe
r
Operator Manua
l
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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:
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,
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 S20 is an industrial rider machine designed to sweep hard surfaces (concrete, asphalt, stone, synthetic, etc).
Typical applications include industrial warehouses, manufacturing facilities, distribution facilities, stadiums, arenas,
convention centers, parking facilities, transportation terminals, and construction sites. Do not use this machine on soil,
grass, artificial turf, or carpeted surfaces. This machine can be used both indoors and outdoors, but ensure there is
adequate ventilation if used indoors. This machine is not intended for use on public roadways. 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
Thermo−Sentry, Perma−Filter, InstantAccess, Lower Total Cost of Ownership, and Duramer are trademarks of Tennant Company.
Specifications and parts are subject to change without notice.
Original Instructions, Copyright E2009 − 2012, 2014 TENNANT Company, Printed in U.S.A.

CONTENTS
1
S20 Electric 9006704 (4−2014)
CONTENTS
Page
Important Safety Instructions − Save These
Instructions 3.............................
Operation 7...............................
Machine Components 7..................
Controls And Instruments 8...............
Symbol Definitions 19.....................
Installing Batteries 11.....................
Battery Specifications 11..................
Operation Of Controls 12..................
Directional Pedal 12...................
Brake Pedal 12.......................
Parking Brake Pedal 12................
Parking Brake Light 12.................
Main Cover Lever 13...................
Steering Wheel Tilt Handle 13...........
Main Brush Adjustment Knob 13.........
Side Brush Adjustment Knob 13.........
Clogged Dust Filter Light 14............
Hopper Temperature Light −
Thermo−Sentry 14..................
Hopper Door Closed Light 14...........
Clogged Hydraulic Filter Light 14........
Power Kill Switch 15...................
Battery Discharge Indicator 15..........
Hour Meter 15........................
Operating / Hazard Lights Switch 15.....
Operator Seat 16......................
Deluxe Suspension Seat (Option) 16.....
Seat Belts (Option) 16.................
How The Machine Works 17...............
Brush Information 17.....................
While Operating The Machine 18...........
Pre−operation Checklist 19................
Starting The Machine 20..................
Turning Off The Machine 21...............
Sweeping 22............................
Stop Sweeping 23........................
Emptying The Hopper 24..................
Engaging Hopper Support Bar 26...........
Disengaging Hopper Support Bar 27........
Options 29..............................
Vacuum Wand 29.....................
Tower Bumpers (Option) 30.............
Machine Troubleshooting 31...............
Maintenance 32.............................
Maintenance Chart 32....................
Lubrication 34...........................
Propelling Gearbox 34.................
Rear Wheel Support 34................
Steering Link 34.......................
Front Wheel Bearings 34...............
Hopper Lift Arm Pivots 35..............
Hydraulics 35............................
Hydraulic Fluid Reservoir 35............
Hydraulic Fluid 36.....................
Hydraulic Hoses 36....................
Page
Batteries 37.............................
Checking The Electrolyte Level 37.......
Checking Connections / Cleaning 37.....
Charging The Batteries
(Off−Board Charger) 38................
Fuses , Relays, And Circuitbreakers 40.....
Fuses 40.............................
Relays 40............................
Circuit Breakers 41....................
Electric Motors 41........................
Belts 42.................................
Hydraulic Pump Belt 42................
Vacuum Fan Belt 42...................
Main Brush Intermediate Belt 42.........
Main Brush Belt 42....................
Hopper Dust Filter 43.....................
Replacing The Hopper Dust Filter 43.....
Cleaning The Hopper Dust Filter 44......
Cleaning The Cyclone Assembly 44........
Cyclone Dust Tray Seals 44............
Cyclone Perma−Filter 45...............
Cyclone Cover Seals 45................
Hopper Dust Filter Cover Seal 45........
Main Brush 46...........................
Replacing Or Rotating The Main Brush 46
Checking The Main Brush Pattern 47....
Adjusting The Main Brush Taper 47......
Adjusting The Main Brush Width 48......
Side Brush(Es) 48........................
Replacing The Side Brush 48...........
Adjusting The Side Brush Pattern 49.....
Side Brush Guard 49..................
Side Brush Pivot 49....................
Skirts, Flaps, And Seals 50................
Hopper Lip Skirt 50....................
Hopper Side Skirt 50...................
Brush Door Skirts 50...................
Rear Skirts 50........................
Side Brush Dust Control
Skirts (Option) 51...................
Brush Door Seals 51...................
Hopper Seals 51......................
Hopper Access Door Seal 51...........
Inner Hopper Access Door Seal
(Option − Vacuum Wand Only) 52....
Hopper Door Seals 52.................
Filter Chamber Inlet Seal 52............
Brakes And Tires 53......................
Brakes 53............................
Tires 53..............................
Rear Wheel 53........................
Pushing, Towing, And Transporting
The Machine 54.......................
Pushing Or Towing The Machine 54......
Transporting The Machine 54...........
Machine Jacking 55......................
Storage Information 55....................

CONTENTS
S20 Electric 9006704 (4−2014)
2
Page
Specifications 56............................
General Machine Dimensions/Capacities 56.
General Machine Performance 57..........
Power Type 57...........................
Steering 57..............................
Hydraulic System 59......................
Braking System 58.......................
Tires 58.................................
Machine Dimensions 58...................
Index 59...................................

SAFETY PRECAUTIONS
3
S20 Electric 9006704 (4−2014)
IMPORTANT SAFETY INSTRUCTIONS − SAVE THESE INSTRUCTIONS
The following precautions 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: Lift arm pinch point. Stay
clear of hopper lift arms.
WARNING: Raised hopper may fall.
Engage hopper support bar.
WARNING: Moving belt and fan. Keep
away.
WARNING: Machine can emit excessive
noise. Hearing loss can result. Wear
hearing protection. (Cab option only).
WARNING: Accident may occur. Do not
operate vacuum wand while driving.
(Vacuum wand option only)
This machine may be equipped with
technology that automatically communicates
over the cellular network. If this machine will
be operated where cell phone use is restricted
because of concerns related to equipment
interference, please contact a Tennant
representative for information on how to
disable the cellular communication
functionality.
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.
− Without filters in place.
− With brake disabled.
− 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 operating / headlights are
turned on.
− In areas with possible falling objects
unless equipped with overhead guard.
2. Before starting machine:
− Check machine for fluid leaks
− Make sure all safety devices are in
place and operate properly.
− Check brakes and steering for proper
operation.
− Adjust seat and fasten seat belt (if so
equipped).
3. When starting machine:
− Keep foot on brake and directional
pedal in neutral.
4. When using machine:
− Use only as described in this manual.
− Do not pick up burning or smoking
debris, such as cigarettes, matches or
hot ashes
− Use brakes to stop machine.
− Go slowly on inclines and slippery
surfaces.
− Do not sweep on ramp inclines that
exceed 14% grade or transport
(GVWR) on ramp inclines that exceed
17.6% grade.
− Reduce speed when turning.
− Keep all parts of body inside operator
station while machine is moving.

SAFETY PRECAUTIONS
S20 Electric 9006704 (4−2014)
4
− Use care when reversing machine.
− Move machine with care when hopper
is raised.
− Make sure adequate clearance is
available before raising hopper.
− Do not raise hopper when machine is
on an incline.
− Keep children and unauthorized
persons away from machine.
− Do not carry passengers on any part
of the machine.
− Always follow safety and traffic rules.
− Report machine damage or faulty
operation immediately.
5. Before leaving or servicing machine:
− Stop on level surface.
− Set parking brake.
− Turn off machine and remove key.
6. 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.
− Do not push or tow the machine on
inclines with the brake disabled.
− 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 push or tow the machine
without an operator in the seat
controlling the machine.
− Do not power spray or hose off
machine near electrical components.
− Disconnect battery connections and
charger cord before working on
machine.
− Keep all metal objects off batteries.
− Use a non−conductive battery removal
device.
− Use a hoist and adequate assistance
when lifting batteries.
− Avoid contact with battery acid.
− Use cardboard to locate leaking
hydraulic fluid under pressure.
− Battery installation must be done by
trained personnel.
− Follow site safety guidelines
concerning battery removal.
− All repairs must be performed by
trained personnel.
− Do not modify the machine from its
original design.
− Use Tennant supplied or approved
replacement parts.
− Do not disconnect the off−board
charger’s 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.
− Do not use incompatible battery
chargers as this may damage battery
packs and potentially cause a fire
hazard.
− Inspect charger cord regularly for
damage.
− 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.
7. When loading/unloading machine
onto/off truck or trailer:
− Empty debris hopper before loading
machine.
− Turn off machine and remove key.
− Use ramp, truck or trailer that will
support the weight of the machine and
operator.
− Do not load/unload on ramp inclines
that exceed 25% grade.
− Use winch. Do not drive 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.
− Block machine tires.
− Tie machine down to truck or trailer.

SAFETY PRECAUTIONS
5
S20 Electric 9006704 (4−2014)
The following safety labels are mounted on the
machine in the locations indicated. If any label
becomes damaged or illegible, install a new label
in its place.
Located on belt guard.
354590
Located on the hopper support bar.
Located only on machines with cab option.
WARNING LABEL − Lift arm pinch
point. Stay clear of hopper lift arms.
Located on both
hopper lift arms.
WARNING LABEL − Raised hopper may
fall. Engage hopper support pin.
WARNING LABEL − Machine can emit
excessive noise. Hearing loss can result. Wear
hearing protection.
WARNING LABEL −
Moving belt and fan.
Stay away.

SAFETY PRECAUTIONS
S20 Electric 9006704 (4−2014)
6
Located on back of
main electrical panel.
354590
Located on the optional vacuum wand.
Located on the side of
the operator
compartment.
FOR SAFETY LABEL −
Read manual before
operating machine. WARNING LABEL − Batteries
emit hydrogen gas. Explosio
n
or fire can result. Keep spark
s
and open flame away. Keep
covers open when charging
WARNING LABEL − Accident may occur.
Do not operate vacuum wand while driving.

OPERATION
7
S20 Electric 9006704 (8−2009)
OPERATION
MACHINE COMPONENTS
123
4
6
7
5
8
9
1. Operator seat
2. Steering wheel
3. Instrument panel
4. Hopper cover
5. Side brush
6. Brush door
7. Batteries
8. Hopper access door
9. Main cover

OPERATION
8S20 Electric 9006704 (8−2009)
CONTROLS AND INSTRUMENTS
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15
16
17
18 19
20
21
22
23
24
25
1. Directional pedal
2. Parking brake pedal
3. Brake pedal
4. Seat adjustment lever
5. Hopper raise / lower lever
6. Hopper door lever
7. Vacuum and filter shaker lever
8. Main brush lever
9. Main brush adjustment knob
10. Hopper temperature light −
Thermo−Sentry
11. Clogged dust filter light
12. Hopper door closed light
13. Clogged hydraulic filter light
14. Battery discharge indicator
15. Hour meter
16. Steering wheel
17. Horn button
18. Steering wheel tilt handle
19. Key switch
20. Side brush lever
21. Operating / hazard lights switch
22. Power kill switch
23. Right side brush adjustment knob
24. Left side brush adjustment knob
(Dual side brush option only)
25. Main cover lever

OPERATION
9
S20 Electric 9006704 (8−2009)
SYMBOL DEFINITIONS
These symbols identify controls, displays, and
features on the machine:
Filter shaker Hour meter
Vacuum fan on Steering wheel tilt
Vacuum fan off Off
Hopper down On
Hopper up Start
Hopper door open Horn
Hopper door close (lever) Side brush down and on
Main brush down and on Side brush up and off
Main brush up and off Operating lights
Battery charging system Hazard light
Clogged dust filter Side brush pressure
Thermo−Sentry Parking brake
Hopper door closed (light) Clogged hydraulic filter

OPERATION
10 S20 Electric 9006704 (8−2009)
Brush pressure (Increase) Brush pressure (Decrease)
Turn counterclockwise Turn clockwise
Circuit breaker #1 Circuit breaker #2
Circuit breaker #3 Circuit breaker #4
Circuit breaker #5 Circuit breaker #6
Circuit breaker #7 Circuit breaker #8
Circuit breaker #9 Circuit breaker #10
Circuit breaker #11 Circuit breaker #12
Circuit breaker #13 Circuit breaker #14
Circuit breaker #15 Circuit breaker #16
Circuit breaker #17 Circuit breaker #18
Circuit breaker #19

OPERATION
11
S20 Electric 9006704 (4--2014)
INSTALLING BATTERIES
FOR SAFETY: When servicing machine: Keep
all metal objects off batteries. Use a
non--conductive battery removal device. Use a
hoist and adequate assistance when lifting
batteries. Battery installation must be done by
trained personnel. Follow site safety
guidelines concerning battery removal.
BATTERY SPECIFICATIONS
Six 6--volt deep cycle lead acid batteries or 2
18--volt batteries.
Maximum battery dimensions: 178 mm (7 in) W x
297 mm (11.7 in) L x 424 mm (16.7 in) H or 282
mm (11.1 in) W x 485 (19.1 in) L x 590 mm (23.25
in) H.
1. Park the machine on a level surface and
remove the key.
2. Open the main cover
3. With adequate assistance carefully install the
batteries into the battery compartment tray
and arrange the battery posts as shown.
NOTE:For large traction batteries, use a hoist to
install the battery.
Front of machine
4. Using the supplied battery post boots,
connect the cables to the battery posts,
RED TO POSITIVE (+) & BLACK TO
NEGATIVE (--).
IMPORTANT: Before charging, make sure that
the charger setting is properly set for the
battery type.

OPERATION
12 S20 Electric 9006704 (8−2009)
OPERATION OF CONTROLS
DIRECTIONAL PEDAL
Press the top of the Directional pedal to move
forward and the bottom of the pedal to move
backward. The pedal returns to the neutral
position when it is released.
BRAKE PEDAL
Press the Brake pedal to stop the machine.
PARKING BRAKE PEDAL
Press the Brake pedal down as far as possible
and use toe to lock the Parking brake pedal into
place. Press the Brake pedal to release the
parking brake. The Parking brake pedal will return
to the unlocked position.
PARKING BRAKE LIGHT
The parking brake light comes on when the
parking brake is engaged. Release the parking
brake before operating the machine.

OPERATION
13
S20 Electric 9006704 (8−2009)
MAIN COVER LEVER
The main cover lever releases and locks the seat
support.
Release: Pull the lever back and lift the main
cover.
Lock: Close the main cover and release the lever
to lock the cover in place.
STEERING WHEEL TILT HANDLE
The steering wheel tilt handle controls the angle
of the steering wheel.
Adjust: Pull out the tilt handle, move the steering
wheel up or down, and release the tilt handle.
MAIN BRUSH ADJUSTMENT KNOB
The main brush adjustment knob changes the
amount of contact the main brush has with the
surface being swept. Refer to ADJUSTING THE
MAIN BRUSH WIDTH section of this manual.
NOTE: The main brush adjustment knob can be
repositioned if it interferes with any of the
controls. Lift the knob, turn it to the desired
position, and release it.
SIDE BRUSH ADJUSTMENT KNOB
The side brush adjustment knob changes the
amount of contact the side brush has with the
surface being swept. Refer to ADJUSTING THE
SIDE BRUSH PATTERN section of this manual.
NOTE: The side brush adjustment knob can be
repositioned. Lift the knob, turn it to the desired
position, and release it.

OPERATION
14 S20 Electric 9006704 (8−2009)
CLOGGED DUST FILTER LIGHT
The clogged dust filter light comes on when the
hopper dust filter is clogged.
To clean the filter, hold the vacuum and filter
shaker lever in the Filter shaker position. If the
clogged filter light remains lit, manually clean the
hopper dust filter. See HOPPER DUST FILTER in
the MAINTENANCE section of this manual.
NOTE: The clogged dust filter light also comes
on when the hopper door is closed and the
vacuum fan is on.
HOPPER TEMPERATURE LIGHT −
THERMO−SENTRY
The hopper temperature light comes on when the
Thermo−Sentry senses that there is excessive
heat in the hopper, possibly from a fire. The
Thermo−Sentry will also move the vacuum and
filter shaker lever to the Vacuum fan off position.
If this happens, stop the machine, eliminate the
source of the heat, and return the lever to the
Vacuum fan on position.
HOPPER DOOR CLOSED LIGHT
The hopper door closed light comes on when the
hopper door is closed.
Make sure the hopper door is open all the way
and the hopper door closed light is off, before
sweeping.
CLOGGED HYDRAULIC FILTER LIGHT
The clogged hydraulic filter light comes on when
the hydraulic filter is clogged. If this light remains
on, have the hydraulic filter changed as soon as
possible.

OPERATION
15
S20 Electric 9006704 (8−2009)
POWER KILL SWITCH
The power kill switch halts all power to the
machine.
Halt: Push the power kill switch in.
Restart: Turn off the machine. Turn the power kill
switch to the right to release the switch. Turn on
the machine.
BATTERY DISCHARGE INDICATOR
The battery discharge indicator shows the charge
level of the batteries. It displays the charge level
when the machine is operating.
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 reading on the battery discharge
indicator is not accurate when the machine is first
powered on. Operate the machine a few minutes
before reading the charge level of the batteries.
NOTE: The battery discharge indicator will not
reset from the flashing indicator unless the
batteries have been fully charged.
HOUR METER
The Hour meter records the hours the machine
was operated. Use this information to determine
machine service intervals.
OPERATING / HAZARD LIGHTS SWITCH
The operating / hazard lights switch powers on
and off the headlights and taillights and the
optional hazard light.
Operating lights on: Press the top part of the
switch.
Operating / Hazard lights on (Optional): Press the
bottom part of the switch.
Off: Place the switch in the middle position.

OPERATION
16 S20 Electric 9006704 (8−2009)
OPERATOR SEAT
The front−to−back adjustment lever adjusts the
seat position.
DELUXE SUSPENSION SEAT (OPTION)
The operator seat has three adjustments:
backrest angle, operator weight, and front to
back.
The operator’s weight adjustment lever controls
the seat weight adjustment. The lever has three
positions: lightweight, middleweight, and
heavyweight.
The backrest adjustment knob adjusts the angle
of the backrest.
The front−to−back adjustment lever adjusts the
seat position.
SEAT BELTS (OPTION)
FOR SAFETY: Before starting machine, adjust
seat and fasten seat belt (if equipped).

OPERATION
17
S20 Electric 9006704 (4−2014)
HOW THE MACHINE WORKS
The steering wheel controls the direction of
machine travel. The directional pedal controls the
speed and forward/reverse direction. The brake
pedal slows and stops the machine.
The side brush sweeps debris into the path of the
main brush. The main brush sweeps debris from
the floor into the hopper. The vacuum system
pulls dust and air through the hopper and the dust
control system.
When sweeping is finished, shake the dust filter
and empty the hopper.
BRUSH INFORMATION
For best results, use the correct brush type for the
cleaning application.
NOTE: The amount and type of soilage play an
important role in determining the type of brushes
to use. Contact a Tennant representative for
specific recommendations.
Polypropylene Sand Wedge Main Brush −
Recommended for heavy accumulation of sand
and other fine particles.
Polypropylene Window Main Brush −
Recommended for light litter, especially on
smooth floors.
Polypropylene 8-double row Main Brush −
Recommended for general sweeping applications.
Polypropylene and Wire 8-double row Main
Brush − Recommended for general sweeping and
slightly impacted debris.
Polyester 8-double row Main Brush −
Recommended for general sweeping, especially
on rough or irregular surfaces. Nylon has a long
wear life.
Polyester Full Fill Main Brush − Recommended
for accumulation of sand and other fine particles.
Nylon has a long wear life.
Natural Fiber 8-double row Main Brush −
Recommended for accumulation of sand and
other very fine particles.
Polypropylene Side Brush − Recommended for
general sweeping of light to medium debris.
Nylon Side Brush − Recommended for general
sweeping of rough or irregular surfaces. Nylon
has a long wear life.
Flat Wire Side Brush − Recommended for
outdoor curb-side sweeping where dirt is heavy or
compacted.

OPERATION
18 S20 Electric 9006704 (4−2014)
WHILE OPERATING THE MACHINE
Pick up oversized debris before sweeping. Pick
up wire, string, twine, large pieces of wood, or any
other debris that could become wrapped around
or tangled in the brushes.
NOTE: Debris can be placed in the hopper
through the hopper access door on the front of
the hopper.
Drive as straight a path as possible. Avoid
bumping into posts or scraping the sides of the
machine. Overlap the sweep paths by several
centimeters (a few inches).
Avoid turning the steering wheel too sharply when
the machine is in motion. The machine is very
responsive to the movement of the steering wheel.
Avoid sudden turns, except in emergencies.
Adjust the machine speed and brush pressure.
Use the lowest brush pressure for best
performance.
Keep the machine moving to prevent damaging
floor finishes.
If poor cleaning performance is observed, stop
cleaning and refer to MACHINE
TROUBLESHOOTING in this manual.
Perform the Daily Maintenance Procedures after
each use (see MACHINE MAINTENANCE in this
manual).
Drive the machine slowly on inclines. Use the
brake pedal to control machine speed on
descending inclines. Sweep with the machine up
inclines rather than down inclines.
FOR SAFETY: When using machine, go slowly
on inclines and slippery surfaces. Do not
sweep on ramp inclines that exceed 14%
grade or transport (GVWR) on ramp inclines
that exceed 17.6% grade.
Do not operate machine in areas where the
ambient temperature is above 43_C (110_F). Do
not operate sweeping functions in areas where
the ambient temperature is below freezing 0_C
(32_F).