Tennant M20 User manual

M20/M30
(S/N 008000- )
Sweeper Scrubber
Service Manual
9016006
Rev. 01 (03-2017)
*9016006*
North America / International
For the latest Parts Manuals and other
language Operator Manuals, visit:
www.tennantco.com/manuals
ES®Extended Scrub System
Tennant True®Parts
IRIS®a Tennant Technology
Pro-Panel™ Controls
Insta-Fit™ Adapter

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 uids in an
environmentally safe way
according to local waste disposal
regulations.
Always remember to recycle.
MACHINE DATA
Please ll out at time of installation for future
reference.
Model No. -
Serial No. -
Installation Date -
INTENDED USE
The M17 is an industrial rider machine designed to wet scrub and sweep both rough and smooth hard surfaces (concrete, tile, stone, synthetic, etc).
Typical applications include schools, hospitals / health care facilities, ofce buildings, and retail centers. Do not use this machine on soil, grass,
articial turf, or carpeted surfaces. This machine is intended for indoor use only. This machine is not intended for use on public roadways. Do not use
this machine other than described in this Operators Manual.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or [phone]
www.tennantco.com
DFS (Dual Force Sweeping), PerformanceView, Pro-ID, Pro-Check, Perma-Filter, ShakeMax, Zone Settings, SmartRelease, QA Controls, 1−Step,
Dura−Track, Touch−N−Go, Duramer, are trademarks of Tennant Company.
Specications and parts are subject to change without notice.
Original Instructions, copyright © 2017 TENNANT Company, Printed in U.S.A.

3
M20/M30 9016006 - 3-2017
CONTENTS
CONTENTS
Contents ............................................................ 3
Specications .................................................... 7
M30 General Machine Dimensions /
Specications .............................................. 7
M20 General Machine Dimensions /
Specications ............................................ 12
Electrical Component Locator ......................... 17
M Series Electrical Component Locator ........ 17
Electrical.......................................................... 32
Electrical Schematic Symbols........................ 32
Electrical Option Components ....................... 33
Key Power Distribution .............................. 34
Key Power Distribution .............................. 35
Key On Power Distribution......................... 36
Main Brushes On ....................................... 37
Hopper Lift ................................................. 38
Hopper Lower ............................................ 39
Scrub Vacuum Fan On & Squeegee
Down ...................................................... 40
Hopper Door Open .................................... 41
Side Brush On ........................................... 42
Side Brush On ........................................... 43
Shaker Motor On ....................................... 44
Solution & Recovery Float Switches.......... 45
Forward Propel .......................................... 46
Auto Fill Solenoids ..................................... 47
Conventional Detergent Pump &
Es Pump................................................. 48
Horn ........................................................... 49
Hopper Door Closed .................................. 50
Reverse Propel .......................................... 51
Shutdown Relay (Normal Machine
Operation) .............................................. 52
Shutdown Relay (Normal Machine
Operation) .............................................. 53
Shutdown Relay (Shutdown Mode) ........... 54
Shutdown Relay (Shutdown Mode) ........... 55
Starting System On.................................... 56
Starting System On.................................... 57
Glow Plugs On........................................... 58
Conventional Main & Side Brush
...........................................Solution Valves...
59
Fast System On ......................................... 60
Fuel Level Sensor (Gas / Lp / Diesel)........ 61
Impact, Hydraulic Temperature & Filter
Sensors .................................................. 62
Engine Oil Pressure, Temperature,
And Mil System ...................................... 63
Engine Oil Pressure And
Temperature Sensor............................... 64
Fuel Pump And Speed Control Output ...... 65
Fuel Pump ................................................. 66
Engine Speed Control................................ 67
M_series Enable / Disable Chart ............... 68
M_series Control Board Connectors.......... 69
M_series Fault Condition Chart ................. 70
M_series Condition And Warning
Indicators................................................ 71
General Information ................................... 73
M20_m30 Operational Matrix .................... 75
M20_m30 Option Components.................. 76
M20_m30 Hydraulic Component
Locator Side Brush Motor -
Sweep Fan Motor - Scrub Fan Motor
Propel Motor - Main Brush Motor -
Side Sqeegee Lift Cylinder..................... 77
M20_m30 Hydraulic Component
Locator Hopper Cylinder - Scrub
Head Cylinder - Side Brush Extend
Cylinderside Squeegee Cylinder -
Main Brush Motor................................... 78
M20_m30 Hydraulic Component
Locator Sweep Fan Valve - Scrub Manifold -
Sweep Manifold...................................... 79
M20_m30 Hydraulic Component
Locator Steering Cylinder -
Hopper Door Cylinder - ......................... 80
Rear Squeegee Lift Cylinder...................... 80
M20_m30 Hydraulic Component
Locator Hose Group - Steering
And Propel ............................................. 81
M20_m30 Hydraulic Component
Locator Hose Group - Pump And
Vacuum Fan ........................................... 82
M20_m30 Hydraulic Component
Locator Hose Group - Brush
And Hopper ............................................ 83
M20_m30 Hydraulic Component
Locator Hose Group - Squeegee Lift ..... 84
M20_m30 Scrub/Sweep Head Lower ........ 85
M20_m30 Scrub/Sweep Head Lift ............. 86
M20_m30 Squeegee Lower....................... 87
M20_m30 Squeegee Lift............................ 88
M20_m30 Main Brushes On ...................... 89
M20_m30 Side Brush On .......................... 90
M20_m30 Scrub Vacuum Fan On ............. 91

4M20/M30 9016006 - 3-2017
CONTENTS
M20_m30 Scrub Vacuum Fan &
Side Brush On........................................ 92
M20_m30 Scrub Vacuum Fan On ............. 93
M20_m30 Scrub Vacuum Fan &
Side Brush On........................................ 94
M20_m30 Pressure Washer On ................ 95
M20_m30 Hopper Lift ................................ 96
M20_m30 Hopper Lower ........................... 97
M20_m30 Hopper Door Open ................... 98
M20_m30 Hopper Door Close ................... 99
M20_m30 Side Brush Lower ................... 100
M20_m30 Side Brush Lift ........................ 101
M20_m30 Side Brush Extend .................. 102
M20_m30 Side Brush Retract.................. 103
Hydraulic Solenoid Valve Details ............. 104
M20_m30 Fault Codes
(Propanel And Standard Panel) ........... 105
M Series Maintenance ..............................112
Troubleshooting............................................. 147
M20/M30 Membrane Panel Service Modes 147
Service Mode .......................................... 147
Manual Mode ........................................... 148
Conguration Mode ................................. 149
Additional Water Level Setting
Information: .......................................... 150
Self Test Mode ............................................. 150
Throttle Adjust Mode................................ 152
Down Pressure Adjust Mode ................... 154
Membrane Test Mode .............................. 155
Service Mode........................................... 156
M20/M30 Propanel Service Modes.......... 157
Conguration Mode ................................. 158

5
M20/M30 9016006 - 3-2017
CONTENTS

6M20/M30 9016006 - 3-2017
CONTENTS

SPECIFICATIONS
M20/M30 9016006 - 3-2017 7
M30 GENERAL MACHINE DIMENSIONS/CAPACITIES
Item Dimension/Capacity
Length 2745 mm (108 in)
Height 1475 mm (58 in)
Height (with overhead guard) 2135 mm (84 in)
Width/frame (roller to roller) 1475 mm (58 in)
Width (rear squeegee) 1500 mm (59 in)
Width (with side brush) 1625 mm (64 in)
Cleaning path width (Main brush length) 1220 mm (48 in)
Cleaning path width (with scrubbing side brush) 1575 mm (62 in)
Cleaning path width (with sweeping side brush) 1625 mm (64 in)
Main brush diameter (2) 305 mm (12 in)
Side brush diameter (scrubbing) 410 mm (16 in)
Side brush diameter (sweeping) 535 mm (21 in)
Solution tank capacity 284 L (75 gallons)
Recovery tank capacity 360 L (95 gallons)
Debris hopper volume capacity 198 L (7.0 ft3)
Debris hopper weight capacity 295 kg (650 lbs)
Dump height (variable to) 1525 mm (60 in)
Minimum ceiling dump height 2620 mm (103 in)
Weight - empty 1815 Kg (4000 lbs)
GVWR 2449 Kg (5400 lbs)
Transport ground clearance 80 mm (3 in)
Protection Grade IPX3
Values determined as per IEC 60335- 2- 72 Measure
Sound pressure level LpA 84 dB(A)
Sound uncertainty KpA 3.0 dB(A)
Sound power level LWA + Uncertainty KWA 106 dB(A)
Vibration - Hand- arm < 2.5 m/s@
Vibration - Whole body < 0.5 m/s@
SPECIFICATIONS
M30 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS

SPECIFICATIONS
M20/M30 9016006 - 3-2017
8
M30 POWER TYPE
Engine Type Ignition Cycle Aspiration Cylinders Bore Stroke
Mitsubishi 2.0 Piston Coil @ Plug 4Natural 485 mm
(3.35 in)
88 mm (3.46
in)
Displacement Tennant machine governed net
power
Engine mfg un- governed
net power
1997 cc (122 cu in) 37.3 kw (50 hp) @ 2300 rpm 44.7 kw (60 hp) @ 30
00 rpm
Fuel Cooling system Electrical system
Gasoline, 87 octane
minimum, unleaded
Fuel tank: 42 L (11.2 gal)
Water/ethylene glycol
antifreeze
12 V nominal
LPG,
Fuel tank: 15 kg (33 lb)
Total: 7.5 L (2 gal) 75 A alternator
Radiator: 3.8 L (1 gal)
Idle speed, no load (Fast) governed speed, under load Firing order
1350 + 50 rpm 2300 + 50 rpm 1- 3- 4- 2
Spark plug gap Valve clearance, cold Engine lubricating oil with
filter
1.1 mm (0.043 in) No Adjustment
OHC Engine
4.7 L (5 qt) 5W30
SAE- SG/SH
Engine Type Ignition Cycle Aspiration Cylinders Bore Stroke
Kubota V1505- TB Piston Diesel 4Charged /
Turbo
478 mm
(3.07 in)
78.4 mm
(3.08 in)
Displacement Tennant machine governed net
power
Engine mfg un- governed
net power
1500 cc (91.4 cu in) 25.4 kw (34 hp) @ 2800 rpm 27.2 kw (44.2 hp) @ 3000
rpm
Fuel Cooling system Electrical system
Diesel
Fuel tank: 42 L (11.2 gal)
low sulfur fuel content less
than 500ppm only
Water/ethylene glycol
antifreeze
12 V nominal
Total: 7.5 L (2 gal) 37 A alternator
Radiator: 3.8 L (1 gal)
Idle speed, no load (Fast) governed speed, under load Engine lubricating oil
without filter
1350 +50 rpm 2800 +50 rpm 6 L (6.35 qt) API diesel
classification CF or better
M30 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS - (CONTINUED)

SPECIFICATIONS
M20/M30 9016006 - 3-2017 9
M30 GENERAL MACHINE PERFORMANCE
Item Measure
Minimum aisle turn 3175 mm (125 in)
Travel speed forward (maximum) 12.9 Km/h (8 mph)
Travel speed reverse (maximum) 4.8 Km/h (3 mph)
Maximum ramp incline for loading - Empty tanks 18%
Maximum ramp incline for scrubbing 10%
Maximum ramp incline for transporting (GVWR) 14%
Maximum ambient temperature for machine operation 43_C (110_F)
Minimum temperature for operating machine scrubbing functions 0_C (32_F)
M30 HYDRAUL
IC SYSTEM
System Capacity ISO Grade Viscosity Index Ambient Air Temperature Ranges
Hydraulic reservoir 38 L (10 gal) ISO 100 VI 126 or higher 19_C (65_F) or higher
Hydraulic total 45 L (12 gal) ISO 68 VI 155 or higher 7to43_C (45 to 110_F)
ISO 32 VI 163 or higher 16_C (60_F) or lower
M30 STEERING
Type Power source
Front wheel, hydraulic cylinder and rotary
valve controlled
Hydraulic accessory pump
M30 BRAKING SYSTEM
Type Operation
Service brakes Mechanical drum brakes (2), one per rear wheel, cable
actuated
Parking brake Utilize service brakes, cable actuated
M30 TIRES
Location Type Size
Front (1) Solid 150 mm x 460 mm (6 in x 18 in)
Rear (2) Solid 127 mm x 460 mm (5 in x 18 in)
M30 FaST SYSTEM
Item Measure
Solution pump 12 Volt DC, 11A, 0.7 GPM & 1.4 GPM flow (2 speed), 75
psi high- pressure shutdown
Low solution flow rate 2.7 LPM (0.7 GPM)
High solution flow rate 5.4 LPM (1.4 GPM)
Low concentrate flow rate 2.6 CC/Minute (0.085 Liquid Ounces/Minute)
High concentrate flow rate 5.2 CC/Minute (0.17 Liquid Ounces/Minute)
M30 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS - (CONTINUED)

SPECIFICATIONS
M20/M30 9016006 - 3-2017
10
M30
ec- H2O SYSTEM
Item Measure
Solution pump 12 Volt DC, 11A, 0.7 GPM & 1.4 GPM flow, (2 speeds), 75 psi
high- pressure shutdown
Solution flow rate 2.65 LPM (0.7 GPM) - Low
5.30 LPM (1.4 GPM) - High
M30 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS - (CONTINUED)

SPECIFICATIONS
M20/M30 9016006 - 3-2017 11
M30 MACHINE DIMENSIONS
Frame
(roller to roller)
1475 mm (58 in)
1475 mm
(58 in)
2745 mm
(108 in)
Rear
Squeegee
1500 mm
(59 in) Width
(with side brush)
1625 mm (64 in)
Track
(at rear wheels)
1473 mm
(58 in)
Wheel base
1422 mm
(56 in)
1014751
M30 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS - (CONTINUED)

SPECIFICATIONS
M20/M30 9016006 - 3-2017
12
M20 SPECIFICATIONS
M20 GENERAL MACHINE DIMENSIONS/CAPACITIES
Item Dimension/capacity
Length 2410 mm (95 in)
Height 1470 mm (58 in)
Height (with overhead guard) 2120 mm (83.5 in)
Width/frame (roller to roller) 1270 mm (50 in)
Width (rear squeegee) 1300 mm (51 in)
Width (with side brush) 1470 mm (58 in)
Wheel base 1280 mm (50.38 in)
Track 1270 mm (50 in)
Cleaning path width (Main brush length) 1020 mm (40 in)
Cleaning path width (with scrubbing side brush) 1370 mm (54 in)
Cleaning path width (with sweeping side brush) 1420 mm (56 in)
Main brush diameter (2) 300 mm (12 in)
Side brush diameter (scrubbing) 410 mm (16 in)
Side brush diameter (sweeping) 530 mm (21 in)
Solution tank capacity 212 L (56 gallons)
Recovery tank capacity 276 L (73 gallons)
Debris hopper volume capacity 110L(3.9ft
3)
Debris hopper weight capacity 177 kg (390 lbs)
Dump height (variable to) 1520 mm (60 in)
Minimum ceiling dump height 2500 mm (98 in)
Weight - empty 1497 Kg (3300 lbs)
GVWR 2359 Kg (5200 lbs)
Transport ground clearance 80 mm (3 in)
Protection Grade IPX3
Values determined as per IEC 60335- 2- 72 Measure
Sound pressure level LpA 84 dB(A)
Sound uncertainty KpA 3.0 dB(A)
Sound power level LWA + Uncertainty KWA 106 dB(A)
Vibration - Hand- arm < 2.5 m/s@
Vibration - Whole body < 0.5 m/s@
M20 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS

SPECIFICATIONS
M20/M30 9016006 - 3-2017 13
M20 GENERAL MACHINE PERFORMANCE
Item Measure
Minimum aisle turn 2790 mm (110 in)
Travel speed forward (maximum) 12.9 Km/h (8 mph)
Travel speed reverse (maximum) 4.8 Km/h (3 mph)
Maximum ramp incline for loading - Empty tanks 18%
Maximum ramp incline for scrubbing 14%
Maximum ramp incline for transporting (GVWR) 18%
Maximum ambient temperature for machine operation 43_C (110_F)
Minimum temperature for operating machine scrubbing functions 0_C (32_F)
M20 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS - (CONTINUED)

SPECIFICATIONS
M20/M30 9016006 - 3-2017
14
M20 HYDRAUL
IC SYSTEM
System Capacity ISO Grade Viscosity Index Ambient Air Temperature Ranges
Hydraulic reservoir 38 L (10 gal) ISO 100 VI 126 or higher 19_C (65_F) or higher
Hydraulic total 45 L (12 gal) ISO 68 VI 155 or higher 7to43_C (45 to 110_F)
ISO 32 VI 163 or higher 16_C (60_F) or lower
M20 POWER TYPE
Engine Type Ignition Cycle Aspiration Cylinders Bore Stroke
Mitsubishi 2.0 Piston Coil @ Plug 4Natural 485 mm
(3.35 in)
88 mm (3.46
in)
Displacement Tennant governed power Gross intermittent power
per SAE J1995
2.0 L (122 cu in) 37.3 kw (50 hp) @ 2300 rpm 44.7 kw (60 hp) @ 30
00 rpm
Fuel Cooling system Electrical system
Gasoline, 87 octane
minimum, unleaded
Fuel tank: 42 L (11.2 gal)
Water/ethylene glycol
antifreeze
12 V nominal
LPG,
Fuel tank: 15 kg (33 lb)
Total: 7.5 L (2 gal) 75 A alternator
Radiator: 3.8 L (1 gal)
Idle speed, no load (Fast) governed speed, under load Firing order
1350 + 50 rpm 2300 + 50 rpm 1- 3- 4- 2
Spark plug gap Valve clearance, cold Engine lubricating oil with
filter
1.1 mm (0.043 in) No Adjustment
OHC Engine
4.7 L (5 qt) 5W30
SAE- SG/SH
Engine Type Ignition Cycle Aspiration Cylinders Bore Stroke
Kubota V1505- B Piston Diesel 4Natural 478 mm
(3.07 in)
78.4 mm
(3.09 in)
Displacement Tennant governed power Gross intermittent power
per SAE J1995
1500 cc (91.4 cu in) 18.5 kw (24.8 hp) @ 2300 rpm 18.5 kw (24.8 hp) @ 2300
rpm
Fuel Cooling system Electrical system
Diesel
Fuel tank: 42 L (11.2 gal)
low sulfur fuel content less
than 500ppm only
Water/ethylene glycol
antifreeze
12 V nominal
Total: 7.5 L (2 gal) 37 A alternator
Radiator: 3.8 L (1 gal)
Idle speed, no load (Fast) governed speed, under load Engine lubricating oil
without filter
950 +50 rpm 2400 +50 rpm 6 L (6.35 qt)
diesel classification CF or
better
M20 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS - (CONTINUED)

SPECIFICATIONS
M20/M30 9016006 - 3-2017 15
M20 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS - (CONTINUED)
M20 BRAKING SYSTEM
Type Operation
Service brakes Mechanical drum brakes (2), one per rear wheel, cable actuated
Parking brake Utilize service brakes, cable actuated
M20 TIRES
Location Type Size
Front (1) Solid 140 mm x 460 mm (5.5 in x 18 in)
Rear (2) Solid 90 mm x 410 mm (3.5 in x 16 in)
M20 STEERING
Type Power source
Front wheel, hydraulic cylinder, and rotary valve controlled Hydraulic accessory pump
M20 FaST SYSTEM
Item Measure
Solution pump 12 Volt DC, 11A, 0.7 GPM & 1.4 GPM flow,
(2 speeds), 75 psi high- pressure shutdown
Low solution flow rate 2.7 LPM (0.7 GPM)
High solution flow rate 5.4 LPM (1.4 GPM)
Low concentrate flow rate 2.6 CC/Minute (0.085 Liquid Ounces/Minute)
High concentrate flow rate 5.2 CC/Minute (0.17 Liquid Ounces/Minute)
M20
ec- H2O SYSTEM
Item Measure
Solution pump 12 Volt DC, 11A, 0.7 GPM & 1.4 GPM flow,
(2 speeds), 75 psi high- pressure shutdown
Solution flow rate 2.65 LPM (0.7 GPM) - Low
5.30 LPM (1.4 GPM) - High

SPECIFICATIONS
M20/M30 9016006 - 3-2017
16
M20 GENERAL MACHINE DIMENSIONS / SPECIFICATIONS - (CONTINUED)
M20 MACHINE DIMENSIONS
Frame
(roller to roller)
1270 mm (50 in)
1470 mm
(58 in)
2410 mm
(95 in)
Rear
Squeegee
1300 mm
(51 in) Width
(with side brush)
1470 mm (58 in)
Track
(at rear wheels)
1270 mm
(50 in)
Wheel base
1280 mm
(50.38 in)
1014751

ELECTRICAL COMPONENT LOCATOR
M20/M30 9016006 - 3-2017 17
M20/30 -Series ElectricalComponentLocator
Shaker Motor Hopper Latch
Solenoid SOL-9
Hopper Down
Sense Switch
Recovery Tank
Full Switch S-15
ELECTRICAL COMPONENT LOCATOR
M SERIES ELECTRICAL COMPONENT LOCATOR

ELECTRICAL COMPONENT LOCATOR
M20/M30 9016006 - 3-2017
18
M20/30 Series ElectricalComponentLocator
Solution Tank
Switch S-14
Auto Fill Solenoid
Valves Sol-1 and 2
Solution Tank
Empty Switch (S-15)
M SERIES ELECTRICAL COMPONENT LOCATOR - (CONTINUED)

ELECTRICAL COMPONENT LOCATOR
M20/M30 9016006 - 3-2017 19
M20/30 Series ElectricalComponentLocator
Battery
Fuse / Relay
Panel
Horn
Recovery Tank Half
Full Switch S-16
ES (Extended Scrub
Pump
ES Equipped Machines
M SERIES ELECTRICAL COMPONENT LOCATOR - (CONTINUED)

ELECTRICAL COMPONENT LOCATOR
M20/M30 9016006 - 3-2017
20
M20/30 Series ElectricalComponentLocator
Shaker Motor Hopper Thermal
Sentry Switch S-9
Sweeper Filter Clogged
Switch S-18
(Viewed Behind Bumper
M SERIES ELECTRICAL COMPONENT LOCATOR - (CONTINUED)