Name: Tennant T20
Brand: Tennant
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T20

(S/N 008000- )

Rider Scrubber

English EN

Service Information Manual

9016205

Rev. 00 (5-2017)

*9016205*

For the latest Parts Manuals and other

language Operator Manuals, visit:

www.tennantco.com/manuals

The Safe Scrubbing Alternative

Extended Scrub System

Tennant True

Parts

Hygenic

Fully Cleanable tanks

FloorSmart

Integrated Cleaning system

IRIS

a Tennant Technology

Pro-Panel™ Controls

Insta-Fit™ Adapter

Introduction2
Intended Use2
Machine Data2
- Serial Number Location2
- Table of Contents3
Contents3
Safety Precautions6
General Information10
- Electrical Component Locator10
- Hydraulic Component Locator19
- Specifications27
Maintenance31
- Maintenance Chart32
- Yellow Touch Points35
- Lubrication35
- Hydraulics37
  - Hydraulic Fluid38
  - Hydraulic Hoses38
- Engine - Gas/Lpg39
- Engine - Diesel42
- Engine Belt44
Battery44
Fuses and Relays45
- Relay Panel Fuses and Relays45
- Engine Harness Fuses and Relays46
- Optional Relays46
- CIRCUIT BREAKERS (Ec H2O)46
Scrub Brushes and Pads46
Disk Brushes46
- Replacing Disk Brushes or Pad Driver47
- Replacing Disk Pads47
- Checking the Disk Scrub Head Stop Bumpers48
Cylindrical Brushes49
- Replacing or Rotating Cylindrical Brushes49
- Checking Cylindrical Brush Pattern50
- Adjusting the Cylindrical Brush Taper51
- Adjusting the Cylindrical Brush Width51
Side Brush (Option)52
- Replacing the Side Brush52
Fast System53
- REPLACING the Fast PAK CARTON53
- Cleaning the Fast Supply Hose Connector54
- Cleaning the Fast System Filter Screen54
- Filters54
Ec H2O MODULE FLUSH PROCEDURE55
CLEANING the Ec H2O FILTER SCREEN56
Squeegee Blades57
- Replacing (or Rotating) the Rear Squeegee Blades57
- Replacing or Rotating the Side Squeegee Blades59
- Replacing or Adjusting the Side Brush Squeegee Blade (Option)61
- Leveling the Rear Squeegee62
- Adjusting the Rear Squeegee Blade Deflection63
Skirts and Seals64
- Scrub Head Skirt64
- Recovery Tank Seal64
- Solution Tank Seals64
Brakes and Tires65
- Brakes65
- Tires65
- Front Wheel65
Propelling Motor65
Pushing, Towing, and Transporting the Machine66
- Pushing or Towing the Machine66
- Transporting the Machine66
Machine Jacking68
Storage Information68
- Freeze Protection (Machines Without Ec−H2O System)69
- Freeze Protection (Machines with Ec−H2O System)69
- PRIMING the Ec H2O SYSTEM71
Electrical Troubleshooting72
Schematic Symbols73
Machine Electrical Schematic74
Diesel Engine Harness Electrical Schematic81
Gas Engine Harness Electrical Schematic82
Lpg Engine Harness Electrical Schematic84
T20 Option Components87
Key Switch88
Main Brushes on91
Scrub Vacuum on and Squeegee down92
Side Brush on93
Tank Level Switches94
Auto-Fill Solenoid95
Conventional Detergent Pump and es Pump96
Horn97
Reverse Propel98
Shutdown Relay99
Starting System on103
Glow Plugs on105
- Solution Valves106
Fast System on107
Fuel Level Sensors108
- Sensor109
- Oil Pressure, Temperature, and Mil System110
  - Control112
- Key on Power Distribution115
- Key off Power Distribution116
- Horn117
- Enable/Disable Chart118
- Control Board Connectors (P1)119
- Control Board Connectors (P2)120
- Fault Indicators121
- Condition and Warning Indicators122
Hydraulic Troubleshooting123
- Hydraulic Schematic Symbols124
- Hydraulic Schematic126
- Operating Matrix128
- Option Components129
- Hose Group: Steering and Propel130
- Hose Group: Pump and Vac Fan131
- Hose Group: Cylindrical Brush132
- Hose Group: Disk Brush133
- Hose Group: Squeegee Lift134
- Scrub Head Lower135
- Scrub Head Lift136
- Squeegee Lower137
- Squeegee Lift138
- Main Brush on (Cylindrical)139
- Main Brush on (Disk)140
- Side Brush on141
- Scrub Vacuum Fan on142
  - Side Brush on143
- Side Brush Lower144
- Side Brush Lift145
- Side Brush Extend146
- Side Brush Retract147
- Hydraulic Solenoid Valve Details148
Service149
- Propanel Service Modes149
- Down Pressure Adjust Mode155
- Membrane Test Mode157
Membrane Panel Service Modes158
- Service Mode158
- Manual Mode159
- Configuration Mode160
- Self Test Mode161
- Input Display Mode163
- Throttle Adjust Mode164
- Down Pressure Adjust Mode165
- Membrane Test Mode167
Front Tire and Wheel Support168
- Replace Front Drive Wheel168

Tennant T20 Service Information Manual

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Tennant T20 Specifications

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Brand	Tennant
Model	T20
Category	Scrubber
Language	English