Tennant SweepSmart S20 ELECTRIC Operating and installation instructions

S20
www.tennantco.com
North America / International
SweepSmart t System
ShakeMax t 360
(Gas/LPG/Diesel)
Sweeper
Service Information Manual
*9006724*
9006724
Rev. 00 (11-2009)

Ref Part No. Serial Number Description Qty.
1 82681 (000000--- ) Bracket Wldt, Lpg Mount 1
o2 63810 (000000--- ) Latch Assy, Lpg Tank Mtg, W/Nut 4
Y3 51839 (000000--- ) Nut Adjustable, Lpg Tank Mtg 2
4 49263 (000000--- ) Tie, Cable 3
5 82556 (000000---001039 ) Bracket, Vaporizer 1
6 54930 (000000--- ) Vaporizer, LPG 1
C
D
AB
FOR REPLACEMENT PARTS
Identify machine model and serial number.
1. (A) Identify the machine model.
2. (B) Identify the machine serial number from the data plate.
Refer to the TENNANT Parts Manual.
NOTE: Only use TENNANT Company supplied or equivalent parts. Parts and supplies may be ordered
online, by phone, by fax or by mail.

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 --
PROTECT THE ENVIRONMENT
Please dispose of packaging materials,
old machine components such as
batteries, hazardous fluids, including
antifreeze and oil, in an
environmentally safe way according to
local waste disposal regulations.
Always remember to recycle.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or (763) 513--2850
www.tennantco.com
Thermo--Sentry, 1--STEP, EasyOpen, MaxPro, InstantAccess, II--Speed, Perma--Filter, Duramer, Lower Total Cost of Ownership, Touch--N--Go, and Cab
Forward ErgoSpace are US registered and unregistered trademarks of Tennant Company.
Specifications and parts are subject to change without notice.
Copyright E2009 TENNANT Company, Printed in U.S.A.

v
S20 GAS/LPG/D TABLE OF CONTENTS
SAFETY PRECAUTIONS vii
GENERAL MACHINE INFORMATION 1
SPECIFICATIONS 2
GENERAL MACHINE DIMENSIONS/CAPACITIES 2
GENERAL MACHINE PERFORMANCE 2
POWER TYPE 3
POWER TYPE 3
STEERING 3
HYDRAULIC SYSTEM 3
MACHINE DIMENSIONS 5
COMPONENT LOCATOR 6
SYMBOL DEFINITIONS 8
MAINTENANCE & REPAIR 11
HOPPER DUST FILTER 12
REPLACING THE HOPPER DUST FILTER 13
HOPPERDUSTFILTERMEASUREMENT 13
FILTER SEAL HEIGHT ADJUSTMENT 13
ELECTRICAL TROUBLESHOOTING INFORMATION 14
ELECTRICAL SYMBOLS AND ABBREVIATIONS 15
ELECTRICAL SCHEMATIC FIG 1 --- GAS/LP 16
ELECTRICAL SCHEMATIC FIG. 7 --- DIESEL 22
WIRE HARNESSES GROUP FIG. 13 --- GAS/LP 28
WIRE HARNESSES GROUP FIG. 17 --- DIESEL 32
KEY SWITCH INFORMATION (GAS/LPG ONLY) 36
KEY SWITCH INFORMATION (DIESEL ONLY) 37
KEY OFF POWER DISTRIBUTION (GAS/LP ONLY) 38
KEY ON, ENGINE OFF POWER DISTRIBUTION (GAS/LPG ONLY) 39
KEY ON, ENGINE RUNNING POWER DISTRIBUTION
(GAS/LPG ONLY) 40
KEY OFF POWER DISTRIBUTION (DIESEL ONLY) 41
KEY ON, ENGINE OFF POWER DISTRIBUTION (DIESEL ONLY) 42
KEY ON, ENGINE RUNNING POWER DISTRIBUTION
(DIESEL ONLY) 43
MAIN BRUSH AND SIDE BRUSH ON (STANDARD) 44
MAIN BRUSH & SIDE BRUSHES ON
(WITH OPTIONAL LEFT SIDE BRUSH) 45
FILTER SHAKER AND CLOGGED DUST FILTER CIRCUITS 46
HOPPER DOOR CLOSED LAMP & CLOGGED HYDRAULIC
FILTER LAMP CIRCUITS 47
HOPPER THERMO SENTRY CIRCUIT (NORMAL OPERATION) 48
HOPPER THERMO SENTRY CIRCUIT (FIRE IN HOPPER) 49

vi
HYDRAULIC TROUBLESHOOTING INFORMATION 50
GENERAL INFORMATION 51
HYDRAULIC SCHEMATIC 54
HYDRAULIC HOSE GROUP 55
MAIN BRUSH ON 56
MAIN BRUSH DOES NOT TURN ON 57
MAIN BRUSH DOES NOT TURN OFF 58
MAIN AND SIDE BRUSH ON (STANDARD) 59
MAIN AND SIDE BRUSHES ON
(WITH OPTIONAL LEFT SIDE BRUSH) 60
SIDE BRUSH(ES) DOES NOT TURN ON 61
SIDE BRUSH(ES) DOES NOT TURN OFF 62
HOPPER DOOR OPEN 63
HOPPER DOOR DOES NOT OPEN 64
HOPPER DOOR CLOSE 65
HOPPER DOOR DOES NOT CLOSE 66
HOPPER DOOR DOES NOT STAY CLOSED 67
HOPPER LIFT 68
HOPPER DOES NOT RAISE 69
HOPPER DOES NOT STAY IN RAISED POSITION 70
HOPPER LOWER 71
HOPPER DOES NOT LOWER 72
STEERING SYSTEM --- RIGHT TURN 73
STEERING SYSTEM --- LEFT TURN 74
STEERING SYSTEM NOT WORKING PROPERLY 75
PROPEL SYSTEM 76

SAFETY PRECAUTIONS
vii
S20 9006724 (11--09)
SAFETY PRECAUTIONS
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.
CAUTION: To warn of unsafe practices
that could result in minor or moderate
personal injury.
FOR SAFETY: To identify actions that must be
followed for safe operation of equipment.
Do not use the machine other than described in
this Operator Manual. The machine is not
designed for use on public roads.
The following information signals potentially
dangerous conditions to the operator or
equipment:
WARNING: Moving belt and fan. Keep
away.
WARNING: Machine emits toxic gases.
Serious injury or death can result.
Provide adequate ventilation.
WARNING: Raised hopper may fall.
Engage hopper support bar.
WARNING: Lift arm pinch point. Stay
clear of hopper lift arms.
WARNING: Burn hazard. Hot surface. Do
NOT touch.
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).
FOR SAFETY:
1. Do not operate machine:
-- Unless trained and authorized.
-- Unless operator manual is read and
understood.
-- If it is not in proper operating
condition.
-- In flammable or explosive areas.
-- In areas with possible falling objects
unless equipped with overhead guard.
2. Before starting machine:
-- Check for fuel, oil, and liquid leaks.
-- Keep sparks and open flame away
from refueling area.
-- 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:
-- Do not pick up burning or smoking
debris, such as cigarettes, matches or
hot ashes
-- Use brakes to stop machine.
-- Go slow on inclines and slippery
surfaces.
-- 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.
-- Do not carry passengers on 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.

SAFETY PRECAUTIONS
S20 9006724 (11--09)
viii
6. When servicing machine:
-- Avoid moving parts. Do not wear loose
clothing or jewelry.
-- 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.
-- Wear eye and ear protection when
using pressurized air or water.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Avoid contact with hot engine coolant.
-- Do not remove cap from radiator when
engine is hot.
-- Allow engine to cool.
-- Keep flames and sparks away from
fuel system service area. Keep area
well ventilated.
-- Use cardboard to locate leaking
hydraulic fluid under pressure.
-- Use Tennant supplied or approved
replacement parts.
7. 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 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
ix
S20 9006724 (11--09)
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.
EMISSIONS LABEL -- Located on the side of the
operator compartment.
HOPPER LIFT ARMS LABEL --
Located on both hopper lift arms.
FAN AND BELT LABEL --
Located on engine belt
guard.
354902
HEARING PROTECTION LABEL -- Located only
on machines with cab option.

SAFETY PRECAUTIONS
S20 9006724 (11--09)
x
HOT SURFACE LABEL -- Located on
the exhaust shield.
RAISED HOPPER LABEL -- Located on the
hopper lift arm.
FOR SAFETY LABEL --
Located on the side of the
operator compartment.
RAISED HOPPER LABEL -- Located on the
hopper support bar.
VACUUM WAND LABEL -- Located on the
optional vacuum wand.
354902

S20 Service Information
1
S20 9006724 (11--09)
GENERAL
MACHINE
INFORMATION
BEFORE CONDUCTING TESTS:
* Read and Follow ALL Safety Warnings and Precautions as
mentioned at the beginning of this manual
* Always Disconnect Battery (Negative terminal 1st) when
removing or replacing components
DURING TESTS:
* Call Technical Services if Diagnostic Time Exceeds One
Hour With Unknown Cause or Course of Action
NOTE: Troubleshooting charts may be shown with optional equipment. The optional equipment
may not be specified in these charts. Some machines may not be equipped with all components
shown.

S20 Service Information
S20 9006724 (11--09)
2
SPECIFICATIONS
GENERAL MACHINE DIMENSIONS/CAPACITIES
Item Dimension/capacity
Length 2090 mm (82.3 in)
Length with side brush 2248 mm (88.5 in)
Width 1230 mm (48.5 in)
Width with side brush 1260 mm (49.5 in)
Height without overhead guard 1260 mm (49.5 in)
Height with overhead guard 2085 mm (82.1 in)
Track 1135 mm (44.7 in)
Wheelbase 1135 mm (44.7 in)
Main sweeping brush diameter 355 mm (14 in)
Main sweeping brush length 910 mm (36 in)
Side brush diameter 580 mm (23 in)
Sweeping path width with side brush 1270 mm (50 in)
Sweeping path width with dual side brushes 1575 mm (62 in)
Main sweeping brush pattern width 50 to 75 mm (2 to 3 in)
Hopper weight capacity (polyethylene hopper) 340 kg (750 lb)
Hopper weight capacity (optional steel hopper) 318 kg (700 lb)
Hopper volume capacity (polyethylene hopper) 310 L (11 ft3)
Hopper volume capacityv(optional steel hopper) 319 L (11.25 ft3)
Dust filter area 7.4 m2(80 ft2)
Minimum ceiling dump height 2490 mm (98 in)
Weight -- empty 1110 kg (2450 lb)
GVWR (Gross Vehicle Weight Rating) 1674 kg (3690 lb)
Operating sound level at operator ear 80 ±1.5 dBA
Vibration level at steering wheel does not exceed 0.2 m/s@
GENERAL MACHINE PERFORMANCE
Item Measure
Maximum forward speed 10 km/h (6 mph)
Maximum reverse speed 4.8 km/h (3 mph)
Minimum aisle turn width, left 2415 mm (95 in)
Minimum turning radius, right 2113 mm (83.2 in)
Minimum turning radius, left 1625 mm (64 in)
Maximum rated incline with empty hopper 14_/ 25%
Maximum rated incline with full hopper 10_/ 17.6%

S20 Service Information
3
S20 9006724 (11--09)
POWER TYPE
Engine Type Ignition Cycle Aspiration Cylinders Bore Stroke
Kubota DF972
Gas/LP
Piston Distributerless
solid state
4Natural 374.5 mm
(2.93in)
73.6 mm
(2.90 in)
Displacement Net power, governed Net power, maximum
962 cc (58.70 cu in) 17.9 kw (24 hp) @ 2500 rpm 24 kw (32 hp) @
3600 rpm
Fuel Cooling system Electrical system
Gasoline, 87 octane
minimum, unleaded. Fuel
tank: 27.6 L (7.3 gal)
Water/ethylene glycol
antifreeze
12 V nominal
LPG,
Fuel tank: 15 kg (33 lb)
Total:8L(2gal) 40 A alternator
Radiator: 4 L (1 gal)
Idle speed (Fast) governed speed Firing order
1350 + 50 rpm 2500 + 50 rpm 1--2--3
Spark plug gap Valve clearance, cold Engine lubricating oil
with filter
1 mm (0.043 in) 0.135 to 0.165 mm (0.0053 to
0.0064 in) intake and exhaust
10W30 SAE--SJ/SL
3.4L (3.6 qts.)
POWER TYPE
Engine Type Ignition Cycle Aspiration Cylinders Bore Stroke
Kubota D1005 Piston Diesel 4Natural 376 mm
(2.99 in)
73.6 mm
(2.90 in)
Displacement Net power, governed Net power, maximum
1001 cc (61.08 cu in) 14 kw (18.7 hp) @ 2500 rpm 19.4 kw (26 hp) @
3600 rpm
Fuel Cooling system Electrical system
Diesel
Fuel tank: 27.6 L (7.3 gal)
Water/ethylene glycol antifreeze 12 V nominal
Radiator: 4 L (1 gal)
Total:8L(2gal)
30 A alternator
Idle speed (Fast) governed speed under
load
Engine lubricating oil
with filter
1350 + 50 rpm 2500 + 50 rpm 5.1L(5.4qt)
SAE--CD/CE rated
STEERING
Type Power source Emergency steering
Rear wheel, hydraulic cylinder and rotary
valve controlled
Hydraulic accessory pump Manual
HYDRAULIC SYSTEM
System Capacity Fluid Type
Hydraulic reservoir 19.3 L (5.1 gal) TENNANT part no. 65869 -- above 7_C(45_F)
TENNANT part no. 65870 -- below 7_C(45_F)
Hydraulic total 20.8 L (5.5 gal)

S20 Service Information
S20 9006724 (11--09)
4
BRAKING SYSTEM
Type Operation
Service brakes Mechanical drum brakes (2), one per front wheel, rod actuated
Parking brake Utilize service brakes, rod actuated
TIRES
Location Type Size Pressure
Front (2) Solid 89 x 410 mm (3.5 X 16 in) --
Rear (1) Pnuematic 150 x 410 mm (6 X 16 in) 795 kPa (115 psi)

S20 Service Information
5
S20 9006724 (11--09)
MACHINE DIMENSIONS
TOP VIEW
SIDE VIEW
2090 mm
(82.3 in)
1230 mm
(48.5 in)
2085 mm
(82.1 in)
FRONT VIEW
1260 mm
(49.5 in)
354901

S20 Service Information
S20 9006724 (11--09)
6
COMPONENT LOCATOR
6. Fuel Pump (gas)
4
LP filter in lockoff
5
6
3
1
1. Fuse & relay panel
2. Steering Valve
3. Low Fuel Pressure Switch (LPG)
4. Steering Cylinder
5. Fuel Filter
2
3 3
5
6
Gas
Front
Front
Front
Front
Front
Front

S20 Service Information
7
S20 9006724 (11--09)
COMPONENT
LOCATOR
6. Fuel Filter (diesel)
7. Fuel Pump (diesel)
8. Tow By--Pass
1
1. Fuel Sending Unit
2. Brake light switch
3. Hydraulic Solenoid Control Valve
4. Propel System Hydraulic Pump
5. Accessory Hyraulic Pumps
22
3
2
Located under
operator com-
partment floor
panel
4
6
3
7
1
Front
Front
Front
Front
Front
8
5

S20 Service Information
S20 9006724 (11--09)
8
SYMBOL DEFINITIONS
These symbols identify controls, displays, and
features on the machine.
Filter shaker Thermo--Sentry
Vacuum fan on Clogged dust filter
Vacuum fan off Hopper door closed (light)
Fast engine speed Clogged hydraulic filter
Idle engine speed LPG fuel level low
Hopper down Hourmeter
Hopper up Steering wheel tilt
Hopper door open Off
Hopper door close (lever) On
Main brush down and on Start
Main brush up and off Horn
Battery charging system Operating lights
Engine oil pressure Hazard light

S20 Service Information
9
S20 9006724 (11--09)
Engine water temperature Engine choke (Gasoline Only)
Side brush up and off Side brush pressure
Side brush down and on Parking brake
Brush pressure (Decrease) Brush pressure (Increase)
Turn clockwise Turn counterclockwise
Unleaded fuel only Glow plugs
Diesel fuel only

S20 Service Information
S20 9006724 (11--09)
10
FOR OPERATOR AND MAINTENANCE CHARTS, REFER TO OPERATORS
MANUAL