Tennant T15 User manual

T15
*331550*
www.tennantco.com
331550
Rev. 03 (02-2009)
The Safe Scrubbing AlternativeR
(Electric)
Rider Scrubber
Operator Manual
ES Extended Scrub System
R
North America / International

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,
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.
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 --
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or (763) 513--2850
www.tennantco.com
ES , Pre--Sweep, FaST--PAK, Smart Release, Touch--N--Go Control Panel, 1--Step, and Lower Total Cost of Ownership are US registered and
unregistered trademarks of Tennant Company.
Specifications and parts are subject to change without notice.
Original Instructions, copyright E2007, 2008, and 2009 TENNANT, Printed in U.S.A.

CONTENTS
1
T15 331550 (2--09)
CONTENTS
Page
Safety Precautions 3......................
Operation 5..............................
Machine Components 5.................
Control Panel Symbols 6................
Controls And Instruments 7..............
Operation Of Controls 8.................
Directional Pedal 8..................
Brake Pedal 9......................
Parking Brake 9.....................
Key Switch 10.......................
Power Kill Switch 10..................
Operating Lights Switch 10............
Hourmeter 10........................
Operator Seat 11.....................
Seat Support Arm 11.................
Solution Flow Lever 11................
Scrubbing Switch 12..................
Squeegee Switch 13..................
ES Switch (Option) 13................
FaST Switch (Option) 13..............
ec--H2O Switch (Option) 14............
Recovery Tank Full Indicator 14........
Battery Discharge Indicator 15.........
Pre--sweep Switch (Option) 16.........
Dust Control Switch (Option) 16........
Side Brush Pedals (Option) 16.........
Circuit Breakers 17...................
Fuse 18............................
Steering Wheel 18....................
Squeegee Wheel Cams 19............
Squeegee Leveling Knob 19...........
Side Squeegee Down Pressure
Controls 19.......................
How The Machine Works 20..............
Brush And Pad Information 20............
FaST Scrubbing System 22...............
ec--H20 System (Option) 23..............
Pre-operation Checklist 24................
Installing FaST PAK Agent 25.............
Starting The Machine 26.................
Filling The Tanks 27.....................
Scrubbing 29...........................
Double Scrubbing 33....................
Stop Scrubbing 34.......................
Draining And Cleaning The Tanks 36.......
Stop The Machine 40....................
Options 41.............................
Side Brush 41........................
Pre--sweep Assembly 42..............
To Empty The Pre--sweep
Debris Hopper 43
...............
To Remove The Pre--sweep
Assembly 45...................
To Mount The Pre--sweep Assembly 46
Power Wand 48......................
Vacuum Wand 52....................
Page
Positive Drain Control Valve 55.........
Rollout Battery 56....................
Machine Troubleshooting 61..............
Maintenance 63............................
Maintenance Chart 63...................
Lubrication 65..........................
Steering Caster Pivot Bearing 65.......
Rear Squeegee Casters 65............
Steering Gear Chain 65...............
Batteries 66............................
Charging The Batteries 67.............
Self--diagnostic Test 70..................
Electric Motors 72.......................
Pre--sweep Brushes 72..................
Pre--sweep Disk Brushes 72...........
Replacing The Disk Brushes 72.....
Pre--sweep Cylindrical Brush 74........
Checking And Adjusting Cylindrical
Brush Pattern 74..................
Replacing The Pre--sweep
Cylindrical Brush 76................
Scrub Brushes 78.......................
Disk Scrub Brushes 78................
Replacing The Disk Scrub Brushes 78
Cylindrical Scrub Brushes 81...........
Checking And Adjusting Cylindrical
Scrub Brush Pattern 81..........
Replacing The Cylindrical
Scrub Brushes 84...............
Solution System 86......................
Recovery Tank 86....................
Solution Tank 87.....................
FaST System 87.....................
FaST Supply Hose Connector 87.......
FaST / Solution Filter Screen 88........
FaST System Air Pump Filter
(S/N 000000--015437) 88...........
FaST System Injector Filters
(S/N 015438-- ) 88............
ec--H2O Module Flush Procedure 89....
Rear Squeegee Assembly 90.............
Removing The Rear Squeegee
Assembly 90......................
Replacing The Rear Squeegee
Assembly 91......................
Leveling The Rear Squeegee 91........
Adjusting Rear Squeegee
Blade Deflection 92................
Adjusting The Squeegee Guide Roller 93
Rear Squeegee Blades 93................
Replacing Or Rotating The
Rear Squeegee Blade 93
...........
Replacing Or Rotating The
Front Squeegee Blade 95...........
Side Squeegee Blades 96................
Replacing Side Squeegee Blades 96....

CONTENTS
T15 331550 (2--09)
2
Page
Skirts And Seals 97......................
Pre--sweep Side Skirts (Option) 97......
Pre--sweep Recirculation
Skirt (Option) 97...................
Pre--sweep Rear Skirt (Option) 97......
Belts And Chains 98.....................
Scrub Brush Drive Belts 98............
Pre--sweep Brush Motor Belt (Option) 98
Pre--sweep Brush Drive Belt (Option) 98.
Static Drag Strap 99..................
Steering Gear Chain 99...............
Tires 99................................
Pushing, Towing, And Transporting
The Machine 100......................
Pushing Or Towing The Machine 100..
Transporting The Machine 100..........
Machine Jacking 102.....................
Storage Information 103...................
Freeze Protection 103..................
ec--H2O Model 104.................
Flushing Antifreeze From
The ec--H2O Module 104......
Specifications 105...........................
General Machine Dimensions/Capacities 105
General Machine Performance 105.........
Power Type 106..........................
Tires 106................................
FaST System 106........................
ec--H2O System (Option) 106..............
Machine Dimensions 107..................
Index 108.................................

SAFETY PRECAUTIONS
3
T15 331550 (2--09)
SAFETY PRECAUTIONS
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.
This machine is designed solely for scrubbing dirt
and dust in an indoor environment. Tennant does
not recommend using this machine in any other
environment.
The following information signals potentially
dangerous conditions to the operator or
equipment. Read this manual carefully. Know
when these conditions can exist. Locate all safety
devices on the machine. Then, take necessary
steps to train machine operating personnel.
Report machine damage or faulty operation
immediately. Do not use the machine if it is not in
proper operating condition.
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 operation manual is read and
understood.
-- With brake disabled.
-- If it is not in proper operating
condition.
-- In flammable or explosive areas unless
designed for use in those areas.
-- In areas with possible falling objects
unless equipped with overhead guard.
2. Before starting machine:
-- Make sure all safety devices are in
place and operate properly.
-- Check brakes and steering for proper
operation (if so equipped).
-- Adjust seat and fasten seat belt (if so
equipped).
3. When using machine:
-- Do not pick up burning or smoking
debris, such as cigarettes, matches or
hot ashes
-- Go slow on inclines and slippery
surfaces.
-- Use care when backing machine.
-- Do not carry passengers on machine.
-- Follow mixing and handling
instructions on chemical containers.
-- Report machine damage or faulty
operation immediately.
4. Before leaving or servicing machine:
-- Stop on level surface.
-- Turn off machine and remove key.
5. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves when
working on machine.
-- Block machine tires before jacking
machine up.
-- Jack machine up at designated
locations only. Block machine up 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.
-- Wear protective gloves and eye
protection when handling vinegar.
-- Avoid contact with battery acid.
-- Use Tennant supplied or equivalent
replacement parts.
6. 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 push the machine
onto/off the truck or trailer unless the
load height is 380 mm (15 in) or less
from the ground.
-- Block machine tires.
-- Tie machine down to truck or trailer.

SAFETY PRECAUTIONS
T15 331550 (3--08)
4
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.
BATTERY CHARGING LABEL -- LOCATED ON
AND UNDERNEATH THE SEAT SUPPORT.
FLAMMABLE SPILLS LABEL --
LOCATED ON THE SEAT SUPPORT.
FOR SAFETY LABEL -- LOCATED ON THE
SEAT SUPPORT.
FLAMMABLE MATERIALS LABEL -- LOCATED
ON THE UNDERSIDE OF THE TANK COVER
AND ON THE LEFT SIDE OF THE OPERATOR
COMPARTMENT.
350656

OPERATION
5
T15 331550 (2--09)
OPERATION
MACHINE COMPONENTS
A
B
C
D
E
F
G
H
I
J
K
L
353673
A. Solution tank
B. Tank Cover
C. Recovery tank
D. Vacuum fan inlet screen
E. Rear squeegee
F. Side squeegee
G. Scrub head
H. Pre--Sweep assembly (option)
I. Pre--Sweep side brush (es) (option)
J. Batteries
K. FaST PAK (option)
ec--H20 System Module (option)
L. FaST solution system

OPERATION
6T15 331550 (2--09)
CONTROL PANEL SYMBOLS
These symbols identify controls and displays on
the machine:
Battery charge Circuit breaker #3
Scrubbing Circuit breaker #4
Squeegee Circuit breaker #5
Brush pressure Circuit breaker #6
ES -- Extended Scrub (Option) Circuit breaker #7
FaST (Option) Circuit breaker #8
ec--H20 (Option) Circuit breaker #9
Recovery tank full Circuit breaker #10
Solution flow Circuit breaker #11
Pre--Sweep (Option) Circuit breaker #12
Dust control (Option) Circuit breaker #13
Circuit breaker #1 Circuit breaker #14
Circuit breaker #2 Circuit breaker #15

OPERATION
7
T15 331550 (2--09)
CONTROLS AND INSTRUMENTS
A
BCD
E
F
G
H
J
I
K
L
M
N
OPQ
R
S
T
U
V
WX
Y
Z
350655
A. Steering wheel
B. Control panel
C. Battery discharge indicator
D. Recovery tank full indicator
E. Hourmeter
F. Brush pressure indicator
G. Scrubbing switch
H. Squeegee switch
I. ES (Extended Scrub) switch (option), FaST switch (option),
ec--H20 system on/off switch (option)
J. Key switch
K. Power kill switch
L. Operating lights switch
M. Power wand switch (option)
N. Recovery tank clean--out port
O. Solution flow lever
P. Operator console
Q. Seat adjustment lever
R. Use and care guide
S. Directional pedal
T. Brake pedal
U. Circuit breakers
V. Horn button
W. Dust control switch (option)
X. Pre--Sweep switch (option)
Y. Side brush pedals (option)
Z. ec--H20 indicator light (option)

OPERATION
8T15 331550 (3--08)
OPERATION OF CONTROLS
DIRECTIONAL PEDAL
The directional pedal controls the machine’s
direction of travel and propelling speed. The
machine’s speed is controlled by the amount of
pressure placed on the pedal; the farther the
pedal is pressed, the faster the machine will
travel.
Forward: Press the top of the directional pedal
with the upper part of your foot.
NOTE: A seat switch is located under the
operator seat. If there is no weight on the operator
seat, the machine WILL NOT propel in any
direction.
Reverse: Press the bottom of the directional
pedal with the heel of your foot.
When the directional pedal is placed into the
reverse position, the rear squeegee will
automatically raise. After a short delay, the
vacuum will stop.
Neutral: The machine will automatically return to
the Neutral position when you take your foot off
the directional pedal.
When the directional pedal returns to the neutral
position, the scrub brushes will stop and after a
short delay, the scrub head will raise.

OPERATION
9
T15 331550 (5--07)
BRAKE PEDAL
Release the directional pedal to stop the machine.
The Brake Pedal canbeusedtostopthemachine
if quicker stopping is needed on surfaces such as
inclines. Do not operate the machine on inclines
exceeding 8_with empty tanks or 4_with full
tanks.
FOR SAFETY: When using machine, go
slow on inclines and slippery surfaces.
PARKING BRAKE
The parking brake on this machine is automatic
and will engage approximately one second after
the machine stops.

OPERATION
10 T15 331550 (2--09)
KEY SWITCH
The key switch turns the machine’s power on and
off.
On: Turn the key fully clockwise and release it to
the on position.
Off: Turn the key to the left until it clicks.
POWER KILL SWITCH
The power kill switch immediately stops all power
to the machine.
Stop machine power: Press the power kill switch.
Restart machine power: Release the power kill
switch by turning it to the right. Turn the key
switch off, then turn the key fully clockwise and
release it to the on position.
OPERATING LIGHTS SWITCH
The operating lights switch powers the headlights
and taillights on and off.
On: Press the top of the operating lights switch.
Off: Press the bottom of the operating lights
switch.
HOURMETER
The hourmeter records the number of hours the
machine has been operated. Check the hourmeter
regularly; this information is used to determine
when to perform routine machine maintenance.

OPERATION
11
T15 331550 (2--09)
OPERATOR SEAT
The operator seat is designed to be adjusted
forward and backward.
Adjust: Move the lever toward the center of the
seat, slide the seat backward or forward to the
desired position, and release the lever.
NOTE: A seat switch is located under the
operator seat. If there is no weight on the operator
seat, the machine WILL NOT propel in any
direction.
SEAT SUPPORT ARM
The seat support arm holds the seat up to allow
access to the batteries. The support arm
automatically engages when the seat is lifted all
the way up. Lower the seat support by slightly
raising it while pushing the support arm inward.
SOLUTION FLOW LEVER
The solution flow lever controls the amount of
solution that flows to the floor while scrubbing.
Increase solution flow: Push the lever forward.
Decrease solution flow: Pull the lever backward.
NOTE: The machine is equipped with a solenoid
valve that automatically stops the solution flow
when the directional pedal is in the neutral
position or when the scrub head is raised.
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
12 T15 331550 (2--09)
SCRUBBING SWITCH
The scrubbing switch controls the scrub head,
scrub brushes, squeegee, and vacuum fan. The
scrubbing switch is also used to set the scrub
brush pressure.
Start scrubbing: Press the scrubbing switch. The
indicator light will illuminate, the squeegee will
lower, and the vacuum fan will start. The
scrubbing system and solution flow will start when
the directional pedal is pressed and the machine
begins to move forward.
Stop scrubbing: Press the scrubbing switch. The
pressure indicator light will go out. The scrub
brushes stop, the scrub head will raise, and the
solution flow will stop. After a short delay, the rear
squeegee will automatically raise. After another
delay, the vacuum will stop.
The brush down pressure indicators display the
pressure selection. The brush pressure switch
has four positions. Brush pressure increases as
the indicator light moves to the right across the
display. Travel speed and floor conditions will
affect the scrubbing performance. Under normal
conditions, the brush pressure should be set in
the one of the minimum settings. Set the brush
pressure in one of the maximum settings to scrub
a heavily soiled floor.
Change brush pressure: Press and hold the
scrubbing switch. The pressure indicator light will
cycle through the four brush pressure settings.
When the switch is pressed and held, the brush
pressure will increase until it reaches the maximum
setting. The pressure will then return to the
minimum setting. Release the scrubbing switch
when the desired setting is indicated on the display.
NOTE: When the machine power is turned off, the
brush pressure will remain in the last setting used.
NOTE: The scrub switch also controls the
FaST/ec--H2O system (option) when the
FaST/ec--H2O system is enabled with the
FaST/ec--H2O switch.

OPERATION
13
T15 331550 (5--07)
SQUEEGEE SWITCH
The squeegee switch controls the rear squeegee
and vacuum fan.
Lower squeegee and turn vacuum fan on: Press
the switch. The indicator light will illuminate when
the squeegee is lowered.
Raise squeegee and turn vacuum fan off: Press
the switch. The indicator light will go out when the
squeegee is raised.
ES SWITCH (OPTION)
The ES (Extended Scrub) switch turns the
solution recycling system on and off.
On: Press the switch.
Off: Press the switch.
NOTE: If the machine is powered off while in the
ES mode, it will remain in the ES mode when
the machine is powered on.
FaST SWITCH (OPTION)
The FaST switch enables the FaST (Foam
Scrubbing Technology) system. When the FaST
system is enabled, it is turned on and off with the
scrub switch.
On: Press the FaST switch. The indicator light
above the switch will illuminate.
Off: Press the FaST switch. The indicator light
above the switch will turn off.
NOTE: The FaST system will not start until the
directional pedal is pressed.
NOTE: To use the machine for conventional
scrubbing, disable the FaST system by turning the
FaST switch off.
NOTE: Do not use the FaST system when there
are conventional cleaning detergents in the
solution tank. Drain, rinse, and refill the solution
tank with clear cool water before operating the
FaST system. Conventional cleaning detergents
may cause a FaST system failure.

OPERATION
14 T15 331550 (2--09)
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.
On: Press the ec--H2O switch. The indicator light
above the switch will illuminate.
Off: Press the ec--H2O switch. The indicator light
above the switch will turn off.
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.
RECOVERY TANK FULL INDICATOR
The recovery tank full indicator light will illuminate
when the recovery tank is full.
NOTE: When the indicator illuminates,all
scrubbing functions will shut off automatically.

OPERATION
15
T15 331550 (2--09)
BATTERY DISCHARGE INDICATOR
The battery discharge indicator displays the
charge level of the batteries while the machine is
operating.
When the batteries are fully charged, all four
indicator lights are lit. As the batteries discharge,
the indicator lights will go out from right to left.
The batteries should be recharged when the
indicator on the left flashes. When the indicator
flashes, all scrubbing functions will shut off
automatically. Drive the machine to the battery
charging area and charge the batteries
immediately after the battery discharge indicator
begins to flash.
NOTE: The reading on the battery discharge
indicator may not be accurate when the machine
is first powered on. Operate the machine for a few
minutes before reading the charge level of the
batteries.

OPERATION
16 T15 331550 (3--08)
PRE--SWEEP SWITCH (OPTION)
The Pre--Sweep switch turns the Pre--Sweep
option on and off.
On: Press the top of the switch. The Pre--Sweep
assembly will lower. The indicator light will
illuminate and the Pre--Sweep assembly will
begin sweeping when the machine propels
forward.
Off: Press the bottom of the switch. The indicator
light will turn off. The Pre--Sweep assembly will
stop sweeping and raise up to the off position.
DUST CONTROL SWITCH (OPTION)
The dust control switch turns the dust control
option on and off.
On: Press the top of the switch. The indicator
light will illuminate and the dust control system will
start spraying when the machine propels forward.
The water will only spray for five seconds every
two minutes.
NOTE: The dust control system will only operate
if the Pre--Sweep option is on.
Off: Press the bottom of the switch. The indicator
light will turn off. The dust control system will stop
spraying.
SIDE BRUSH PEDALS (OPTION)
The side brush pedals raise and lower the side
brush (option).
Lower brush: Press the lower pedal with the toe
of your foot to disengage the pedal lock. Release
the pedal to lower the side brush to the floor and
begin sweeping.
Raise brush: Press the top pedal all the way
down with the toe of your foot. The side brush will
raise to the off position and stop sweeping.
Release the pedal and the pedal will lock
automatically.

OPERATION
17
T15 331550 (2--09)
CIRCUIT BREAKERS
Circuit breakers are resetable electrical circuit
protection devices designed to stop the flow of
current in the event of a circuit overload. Once a
circuit breaker is tripped, reset it manually by
pressing the reset button after the breaker has
cooled down.
NOTE: If the scrub system stops and the 4 brush
indicator lights blink, CB14 or CB15 may need to
be reset.
Circuit breaker 10 is located inside the
Pre--Sweep assembly (option).
If the overload that caused the circuit breaker to
trip is still present, the circuit breaker will continue
to stop current flow until the problem is corrected.
The chart below shows the circuit breakers and
the electrical components they protect.
Machines serial numbers 000000--015999 Machines serial numbers 016000--
Circuit
Breaker Rating Circuit Protected
Circuit
Breaker Rating Circuit Protected
CB1 10 A Machine power CB1 2.5 A Machine power
CB2 10 A Start CB2 2.5 A Start
CB3 15 A Head lights CB3 10 A Head lights / Warning lights
CB4 10 A Power wand /
Side brush (option)
CB4 10 A Power wand /
Side brush (option)
CB5 10 A Horn CB5 2.5 A Horn
CB6 15 A Instrument panel/FaST or ES
pump (option)
CB6 15 A Instrument panel and loads
CB7 20 A Vacuum Fan (50 A -- If heavy
duty vacuum fan)
CB7 2.5 A ec--H20 controller (option)
CB8 25 A RH Scrub brush motor CB8 2.5 A ec--H20 pump (option)
CB9 25 A LH Scrub brush motor CB9 10 A FaST (option)
CB10 25 A Pre--Sweep (option) CB10 25 A Pre--Sweep (option)
CB11 -- Not Used CB11 2.5 A Taillights
CB12 10 A Pre--Sweep Side brush
motors (option)
CB12 -- Not Used
CB13 25 A Vacuum fan (50 A -- If heavy
duty vacuum fan)
CB14 30 A RH Scrub brush motor
CB15 30 A LH Scrub brush motor

OPERATION
18 T15 331550 (2--09)
FUSE
The fuse is a one-time protection device designed
to stop the flow of current in the event of a circuit
overload.
NOTE: Always replace the fuse with a fuse of the
same amperage.
The fuse is located behind the operator console.
Access the fuse by lowering the operator console.
Fuse Rating Circuit Protected
FU-1 80 A Propelling
STEERING WHEEL
The steering wheel controls the machine’s
direction of travel.
Left: Turn the steering wheel to the left.
Right: Turn the steering wheel to the right.