Tennant T7 User manual

T7
*331040*
www.tennantco.com
Rider--Scrubber
Operator Manual
331040
Rev. 03 (07-2007)
North America / International
Hygenic Fully Cleanable Tanks
R
The Safe Scrubbing AlternativeR

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 such as
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
FaST--PAK is a US registered and unregistered trademark of Tennant Company.
Specifications and parts are subject to change without notice.
Copyright E2004 -- 2007 TENNANT Company, Printed in U.S.A.

CONTENTS
1
T7 331040 (7--07)
CONTENTS
Page
SAFETY PRECAUTIONS 2.................
OPERATION 4............................
MACHINE COMPONENTS 4.............
CONTROLS AND INSTRUMENTS 5......
HOW THE MACHINE WORKS 6..........
FOAM SCRUBBING SYSTEM
(FaST MoDE) 6......................
BRUSH INFORMATION 7................
MACHINE SETUP 7.....................
AttachING Squeegee Assembly 7......
InstallING Brushes/Pads 7.............
FILLING THE SOLUTION TANK 8......
MACHINE OPERATION 8................
PRE--OPERATION CHECKLIST 8......
BEFORE OPERATING 8..............
SETTING SCRUB MODES 9..........
SETTING FaST BUTTON 9...........
SETTING BRUSH PRESSURE 9.......
SETTING SOLUTION FLOW LEVEL 9..
ECONOMY SETTING 9...............
SCRUBBING 10......................
DOUBLE SCRUBBING 11..............
WATER PICKUP MODE
(NO SCRUBBING) 12...............
WHILE OPERATING THE MACHINE 13.
EMERGENCY STOP BUTTON 13.......
HOUR METER 13.....................
SOLUTION TANK EMPTY INDICATOR 14
RECOVERY TANK FULL INDICATOR 14.
BATTERY DISCHARGE INDICATOR 14.
FAULT INDICATOR 15.................
CIRCUIT BREAKERS 16...............
FUSES 16............................
HAZARD LIGHT SWITCH (OPTION) 16..
DRAINING AND CLEANING THE TANKS 17
PROPEL SYSTEM TROUBLESHOOTING 19
MACHINE TROUBLESHOOTING 20.......
MAINTENANCE 22.........................
MAINTENANCE CHART 23...............
BATTERIES 24..........................
GEL BATTERIES 24...................
LEAD ACID BATTERIES 24............
CHARGING THE BATTERIES WITH
OFF--BOARD CHARGER 25.........
CHECKING ON--BOARD BATTERY
CHARGER SETTINGS 26...........
CHARGING THE BATTERIES WITH
THE ON--BOARD CHARGER 27.....
ON--BOARD BATTERY CHARGER
ERROR CODES 27.................
Page
ELECTRIC MOTORS 28..................
BELTS (Cylindrical Models) 28.............
SCRUB BRUSHES AND PADS 29.........
DISK BRUSHES 29...................
REPLACING DISK BRUSHES
OR PAD DRIVER 29.............
REPLACING DISK PADS 30............
CYLINDRICAL BRUSHES 31..............
REPLACING OR ROTATING
CYLINDRICAL BRUSHES 31........
CHECKING CYLINDRICAL BRUSH
PATTERN 32......................
ADJUSTING CYLINDRICAL
BRUSH TAPER 33.................
ADJUSTING CYLINDRICAL
BRUSH WIDTH 34.................
REPLACING THE FaST--PAK
(FaST Model) 35......................
FaST SUPPLY HOSE CONNECTOR 35.
SQUEEGEE BLADES 36.................
REPLACING (OR ROTATING) THE
REAR SQUEEGEE BLADES 36......
REPLACING SIDE SQUEEGEE
BLADES 38..........................
ADJUSTING THE SQUEEGEE
GUIDE ROLLER 38.................
LEVELING THE REAR SQUEEGEE 38..
ADJUSTING REAR SQUEEGEE
BLADE DEFLECTION 39............
SKIRTS AND SEALS 40..................
DISK SCRUB HEAD FLOOR SKIRT 40..
RECOVERY TANK SEAL 40............
SOLUTION TANK SEALS 40...........
TIRES 40...............................
PUSHING, TOWING, AND
TRANSPORTING THE MACHINE 41....
PUSHING OR TOWING THE
MACHINE 41......................
TRANSPORTING THE MACHINE 41....
MACHINE JACKING 42...................
STORAGE INFORMATION 42.............
FREEZE PROTECTION 42.............
SPECIFICATIONS 43.......................
GENERAL MACHINE
DIMENSIONS/CAPACITIES 43.........
GENERAL MACHINE PERFORMANCE 43..
POWER TYPE 44........................
TIRES 44...............................
FaST SYSTEM (OPTION) 44..............
MACHINE DIMENSIONS 45...............
INDEX 47..................................

SAFETY PRECAUTIONS
T7 331040 (9--05)
2
SAFETY PRECAUTIONS
The following symbols are used throughout this
manual as indicated in the descriptions:
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 cleaning
smooth flooring 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 pick up.
FOR SAFETY:
1. Do not operate machine:
-- Unless trained and authorized.
-- With brake disabled.
-- Unless operation manual is read and
understood.
-- In flammable or explosive areas.
-- In areas with possible falling objects.
2. Before starting machine:
-- Make sure all safety devices are in
place and operate properly.
-- Check brakes and steering for proper
operation.
3. When using machine:
-- Go slow on inclines and slippery
surfaces.
-- Use care when backing machine.
-- Report machine damage or faulty
operation immediately.
-- Follow mixing and handling
instructions on chemical containers.
4. Before leaving or servicing machine:
-- Stop on level surface.
-- Turn off machine and remove key.
5. When servicing machine:
-- Do not push or tow the machine on
inclines with the brake disabled.
-- 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.
-- Wear protective gloves when handling
batteries or battery cables.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Do not power spray or hose off
machine. Electrical malfunction may
occur.
-- Use Tennant supplied or equivalent
replacement parts.
6. When loading/unloading machine
onto/off truck or trailer:
-- Drain tanks before loading machine.
-- Turn off machine.
-- Use truck or trailer that will support
the weight of the machine.
-- Block machine tires.
-- Lower scrub head and squeegee
before tying down machine.
-- Tie machine down to truck or trailer.

SAFETY PRECAUTIONS
3
T7 331040 (11--04)
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 THE SEAT PANEL
FLAMMABLE SPILLS LABEL --
LOCATED ON THE SEAT PANEL
FOR SAFETY LABEL --
LOCATED ON THE
SEAT PANEL
FLAMMABLE MATERIALS LABEL --
LOCATED UNDER THE SOLUTION FILL
PORT AND NEXT TO FOOT PEDALS
ELECTRICAL COMPONENTS, USE
GROUNDING STRAP BEFORE
OPENING PANEL LABEL --
LOCATED ON ELECTRICAL PANEL
UNDER THE SEAT

OPERATION
4T7 331040 (11--04)
OPERATION
MACHINE COMPONENTS
A
BD
C
H
I
J
G
E
L
M
N
F
K
O
S
R
Q
P
A. Recovery tank drain hose
B. Recovery tank cover
C. Recovery tank
D. Operator seat
E. Batteries
F. Rear squeegee
G. Side squeegee
H. Scrub head
I. Steering wheel
J. Solution tank
K. Tool Box or
optional FaST--PAK compartment
L. Solution tank fill cap
M. Solution tank drain hose
N. Squeegee hose
O. Front solution tank cover
P. Hour meter
Q. Circuit breakers
R. 100 A Fuse
S. Battery charging connector

OPERATION
5
T7 331040 (11--04)
CONTROLS AND INSTRUMENTS
A
F
J
E
BCD
G
H
I
K
L
M
N
0
P
Q
R
A. Solution tank empty indicator
B. Recovery tank full indicator
C. Battery charge level indicators
D. Fault indicator
E. Emergency Stop Button
F. Directional switch
G. Horn button
H. On/Off key switch
I. One Step scrub button
J. FaST button (option)
K. Vacuum fan / squeegee button
L. Brush Pressure increase button (+)
M. Brush Pressure decrease button (--)
N. Solution increase button (+)
O. Solution decrease button (--)
P. Brake pedal
Q. Propel pedal
R. Control panel cover

OPERATION
6T7 331040 (9--06)
HOW THE MACHINE WORKS
The machine solution tank, scrub brushes,
squeegee, vacuum fan, and recovery tank work
together to effectively clean dirty floors.
Water and detergent from the solution tank flow to
the floor through a solution valve. The brushes
use the detergent and water solution to scrub the
floor clean. As the machine propels forward, the
squeegee wipes the dirty solution from the floor.
The suction created by the vacuum fan then
draws the dirty solution from the squeegee into
the recovery tank.
The steering wheel controls the path of the
machine travel. The directional switch controls the
forward or reverse direction of the machine. The
propel pedal controls the speed of the machine.
The brake pedal slows and stops the machine.
The buttons on the control panel control the
machine scrubbing functions. The One Step
Scrub button turns the preset scrub functions on
and off. The FaST button controls use of the
Foam scrubbing system. The vacuum fan /
squeegee button turns the vacuum fan on/off and
raises and lowers the squeegee. The brush
pressure buttons control the scrub brush
pressure, and the solution buttons control the
solution flow.
There are two different types of scrub heads
available, cylindrical and disk. Both scrub heads
are available in two different widths. The Disk
scrub head is available in 650 mm (26 in) wide and
800 mm (32 in) wide. The Cylindrical scrub head is
available in 700 mm (28 in) wide and 800 mm (32
in) wide.
NOTE:The amount and type of soilage play an
important role in determining the type of brushes
or pads to use. For specific recommendations,
see the BRUSH INFORMATION section of this
manual or contact a Tennant representative.
FOAM SCRUBBING SYSTEM (FAST MODE)
Unlike conventional scrubbing, the optional FaST
(Foam Scrubbing Technology) system operates
by injecting the FaST--PAK concentrate agent into
the system with a small amount of water and air.
This mixture creates a large volume of expanded
wet foam.
The expanded foam mixture is then dispersed
onto the floor while the machine is scrubbing.
When the squeegee picks up the mixture, the
patented foaming agent has collapsed and is
recovered into the recovery tank.
The FaST system can be used with all double
scrubbing and heavy duty scrubbing applications.
Using the FaST system improves safety and can
increase productivity by 30% by reducing your
dump/fill cycle. It will also reduce chemical usage
and storage space. One FaST--PAK of
concentrated agent can scrub up to 90,000 m2(1
million square feet).
NOTE: Do not use the FaST system with
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 failure to the FaST system.

OPERATION
7
T7 331040 (9--06)
BRUSH INFORMATION
For best results, use the correct brush type for the
cleaning application. The following are
recommended brush applications.
Non-scuff polypropylene brush (Cylindrical
and Disk) -- This brush uses a softer, general
purpose polypropylene bristle to lift lightly
compacted soilage without scuffing high-gloss
coated floors.
Nylon brush (Cylindrical and Disk) -- Softer
nylon bristles are recommended for scrubbing
coated floors. Cleans without scuffing
Super abrasive bristle brush (Cylindrical and
Disk) -- Nylon fiber impregnated with abrasive grit
to remove stains and soilage. Strong action on
any surface. Performs well on buildup, grease, or
tire marks.
Heavy duty stripping pad -- This black pad is for
stripping floors. Cuts through old heavy finishes
easier to prepare the floor for recoating.
Stripping pad -- This brown pad is for stripping
floors. Quickly and easily cuts through old finish to
prepare the floor for recoating.
Scrubbing pad -- This blue pad is for scrubbing
floors. Removes dirt, spills, and scuffs. Leaves a
clean surface ready for recoating.
Buffing pad -- This red pad is for buffing floors.
Quickly cleans and removes scuff marks while
polishing the floor to a high gloss.
Polishing pad -- This white pad is for polishing
floors. Maintains a high gloss. Use for buffing very
soft finishes and lower traffic areas, and polishing
soft waxes on wood floors.
MACHINE SETUP
ATTACHING SQUEEGEE ASSEMBLY
1. Stop machine on a level surface.
2. Turn the machine ON/OFF key switch off.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, and turn off
machine.
3. Place the rear squeegee under the squeegee
mount bracket and fasten with the two knobs.
The squeegee deflection is set at the factory.
If the squeegee blade needs adjustments, see
ADJUSTING REAR SQUEEGEE BLADE
DEFLECTION section of this manual.
INSTALLING BRUSHES/PADS
To install the brushes or pad, see REPLACING
DISK SCRUB BRUSHES OR PAD DRIVER or
REPLACING CYLINDRICAL SCRUB BRUSHES
section of this manual.

OPERATION
8T7 331040 (9--06)
FILLING THE SOLUTION TANK
The machine is equipped with a fill port at the rear
of the machine.
WARNING: Flammable materials can
cause an explosion or fire. Do not use
flammable materials in tank(s).
FOR CONVENTIONAL SCRUBBING: Open the
solution tank fill port and partially fill it with water
(not to exceed 60°C / 140°F). Pour the required
amount of detergent into the solution tank
according to mixing instructions on the bottle.
Then continue filling the solution tank with warm
water until the water level is just below the fill port.
FOR SAFETY: When using machine, follow
mixing and handling instructions on chemical
containers.
FOR FOAM SCRUBBING (FaST MODE) : FILL
THETANKWITHONLYCLEANCOOLWATE
R
(less than 21°C/70°F). DO NOT use hot water or
add any conventional floor cleaning detergents or
FaST system failure may result.
NOTE: When filling the solution tank with a
bucket, make sure that the bucket is clean. Do not
use the same bucket for filling and draining the
machine.
ATTENTION: For Conventional Scrubbing,
only use recommended cleaning detergents.
Machine damage due to improper detergent
usage will void the manufacturer’s warranty.
MACHINE OPERATION
PRE--OPERATION CHECKLIST
-Check the battery fluid and charge level.
-Check the tank cover seals for damage and
wear.
-Clean the vacuum fan inlet filter.
-Check the condition of the scrubbing brushes.
Remove any string, banding, plastic wrap, or
other debris wrapped around them.
-Cylindrical brushes: Check that the debris tray
is empty and clean.
-Check the squeegees for damage, wear and
for deflection adjustment.
-Check the vacuum hose for debris or
blockage.
-Drain and clean the recovery tank.
-Check the brakes and steering for proper
operation.
-Check the service records to determine
maintenance requirements.
-FaST Scrubbing: Check the FaST--PAK
(option) concentrate agent level. Replace
carton as needed. See the INSTALLING THE
FaST--PAK AGENT section of the manual.
-FaST Scrubbing: Ensure that all conventional
cleaning agents are drained and rinsed from
the solution tank.
-FaST Scrubbing: Ensure that the solution
tank is filled with clear cool water only.
BEFORE OPERATING
Pick up oversized debris before scrubbing. Pick
up pieces of wire, string, twine, etc., that could
become wrapped around the scrub brush.
Plan the scrubbing in advance. Try to arrange
long runs with minimum stopping and starting. Do
an entire floor or section at one time.
Pre--sweep the area to prevent streaking.

OPERATION
9
T7 331040 (11--04)
SETTING SCRUB MODES
Before scrubbing, determine which scrub mode
will be used (FaST or conventional). Then set the
scrub brush pressure and if conventional
scrubbing, adjust the solution flow levels.
SETTING FaST BUTTON
The FaST button enables the FaST system to
come on when the One Step Scrub button is on.
The light next to the button will come on when it is
in this mode.
NOTE: The solution flow cannot be adjusted when
the machine is in the FaST mode.
SETTING BRUSH PRESSURE
Under normal conditions, the brush pressure
should be set to the minimum setting (the bottom
light). Under heavy grime conditions, the brush
pressure should be set to the maximum setting
(the top light). Travel speed and floor conditions
will affect scrubbing performance.
With the One Step Scrub button on, press either
the Brush Pressure increase button (+) or the
Brush Pressure decrease button (--) to set the
scrubbing pressure for the surface being cleaned.
The new pressure setting will default to this
setting when the machine is powered on or off.
SETTING SOLUTION FLOW LEVEL
(CONVENTIONAL SCRUBBING ONLY)
NOTE: The solution flow cannot be adjusted when
the machine is in the FaST mode.
Under normal soilage conditions the solution flow
level should be set to the lowest setting (the
bottom light). Under heavy grime conditions, the
solution flow level should be set to the higher
settings (middle or top lights). Travel speed and
floor conditions will affect scrubbing performance.
With the One Step Scrub button on, press either
Solution increase button (+) or Solution decrease
button (--) to set the solution flow level for the
surface being cleaned. The new solution flow
setting will default to this setting when the
machine is powered on or off.
ECONOMY SETTING
The machine will operate for a longer time if the
Brush Pressure and Solution Flow settings are in
the Economy setting. The bottom lights of the
Brush Pressure and Solution Flow settings are on
when the machine is in the Economy setting.

OPERATION
10 T7 331040 (11--04)
SCRUBBING
FOR SAFETY: Do not operate machine, unless
operator manual is read and understood.
1. Turn the On/Off key switch on.
NOTE:Make sure the scrub modes / settings are
set before scrubbing.
2. Press the One Step Scrub button. The light
on the button is illuminated. All the preset
scrubbing functions will turn on.
NOTE:Open the control panel cover to adjust the
Brush Pressure and Solution Flow Setting while
scrubbing if necessary.
NOTE:DO NOT turn the FaST system on during
conventional scrubbing. Conventional cleaning
detergents may cause the FaST injection system
to fail. Drain, rinse, and refill solution tank with
cool clean water before operating the FaST
system.
3. Place the directional switch in the direction
the machine is to be moved (forward or
reverse).
NOTE: The machine can scrub in both forward or
reverse. The horn will sound when in reverse.
NOTE:Thesqueegee automatically raises when
the machine is driven backwards. This prevents
damaging the squeegee. When the machine is
placed in reverse, the vacuum fan will shut off
after a short delay.
4. Press the propel pedal to begin scrubbing.
WARNING: Flammable materials or
reactive metals can cause an explosion
or fire. Do not pick up.
5. Release the propel pedal to stop the machine.
Scrubbing functions stop and the automatic
park brake will engage when the machine
stops.

OPERATION
11
T7 331040 (9--06)
6. The Brake pedal canbeusedtocontrolthe
machine if quicker stopping is needed or if
operating on an incline. Do not operate
machine on inclines exceeding 7% (4_) when
scrubbing.
FOR SAFETY: When using machine, go slow
on inclines and slippery surfaces.
7. Press the One Step Scrub button to stop
scrubbing. The light next to the One Step
Scrub button will turn off and the scrubbing
functions will turn off after a short delay.
DOUBLE SCRUBBING
For heavily soiled areas, use the double scrubbing
method.
Disk brushes: Before double scrubbing, remove
the side squeegees to keep them from channeling
water while double scrubbing. To remove the side
squeegees, lower the scrub head, then pull the
pins on the front and rear ends of the squeegees.
If the machine is equipped with the accessory
basket, you may hang the side squeegees from
the hooks.
To double scrub, press the One Step Scrub
button, then the vacuum fan button. The light
above the vacuum fan button will turn off, the
squeegee will raise and the vacuum fan will stop
operating. Then scrub the area.
Let the cleaning solution set on the floor for 3--5
minutes.

OPERATION
12 T7 331040 (11--04)
Place the side squeegees back on to the machine
before scrubbing the floor the second time.
NOTE: It is easier to put the side squeegees
back on to the machine with the scrub head
partially lowered. This allows clearance to install
the pins.
Press the vacuum fan button again to lower the
squeegee and to turn on the vacuum fan. The
light above the vacuum fan button will come on.
Then scrub the floor a second time picking up the
cleaning solution.
WARNING: Flammable materials or
reactive metals can cause an explosion
or fire. Do not pick up.
NOTE:When scrubbing the area a second time,
you can turn off the solution flow by pressing the
Solution decrease button (--) repeatedly until all
lights above the button are off.
WATER PICKUP MODE (NO SCRUBBING)
Themachinecanbeusedtopickupwateror
non--flammable liquid spills without scrubbing.
To pick up water or non--flammable liquid spills,
check to make sure that the One Step Scrub
button is not activated. The light next to the One
Step Scrub button must be off.
WARNING: Flammable materials or
reactive metals can cause an explosion
or fire. Do not pick up.
Then press the vacuum fan button. The light
above the vacuum fan button will turn on, the
squeegee will lower and the vacuum fan will start
operating. Then pick up the water or
non--flammable liquid spill.

OPERATION
13
T7 331040 (11--04)
WHILE OPERATING THE MACHINE
Drive as straight a path as possible. Avoid
bumping into posts or scraping the sides of the
machine. Overlap the scrub 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.
When scrubbing dead end aisles, start at the
closed end of the aisle and scrub out towards the
opening.
Adjust the machine speed, brush pressure, and
solution flow as required when scrubbing. Use the
minimal brush pressure and solution flow settings
as possible. Use the FaST system for the best
results.
Keep the machine moving to prevent damaging
floor finishes.
If poor scrubbing performance is observed, stop
scrubbing and refer to MACHINE
TROUBLESHOOTING.
Conventional Scrubbing: Pour a recommended
foam control solution into the recovery tank if
excessive foam appears.
Change or rotate pads as necessary.
Observe the battery discharge indicator to ensure
there is adequate charge for machine operation.
Observe the solution tank indicator to ensure the
solution tank is not empty. Always empty recovery
tank before refilling the solution tank.
Observe the recovery tank indicator to ensure the
recovery is not full.
Remove the key when leaving the machine
unattended.
Perform the Daily Maintenance Procedures after
scrubbing (see MACHINE MAINTENANCE).
EMERGENCY STOP BUTTON
The Emergency Stop Button halts all power to the
machine in case of an emergency. Press the
button to halt the machine power. To restart the
machine, turn the Emergency Stop Button to the
right. Then turn the on/off switch to the off position
and then to the on position.
NOTE:This button should not be used for normal
stopping as premature wear to the parking brake
may occur.
HOUR METER
The hour meter records the number of hours the
machine has been powered on. This information
is useful for servicing the machine. It is located
under the seat.

OPERATION
14 T7 331040 (11--04)
SOLUTION TANK EMPTY INDICATOR
The solution tank empty indicator comes on when
the solution tank is empty. When this happens,
the scrub functions are disabled. If necessary,
press the ONE STEP Scrub button for an
additional minute of operation to pick up standing
water or solution.
RECOVERY TANK FULL INDICATOR
The recovery tank full indicator comes on when
the recovery tank is full. When this happens, the
scrub functions are disabled. If necessary, press
the ONE STEP Scrub button for an additional
minute of operation to pick up standing water or
solution.
BATTERY DISCHARGE INDICATOR
The battery discharge indicator shows the charge
level of the batteries.
When the batteries are fully charged, all five lights
are lit. As the batteries discharge, the lights go out
until only the left light is blinking.
When the left light blinks, the scrubbing functions
will shut off to alert the operator of the battery
condition. The machine will still propel when the
light is blinking. Recharge the batteries when the
light blinks. If necessary, press the ONE STEP
Scrub button for an additional minute of operation
to pick up standing water or solution.
NOTE: Do not charge batteries more often than
necessary. Excessive charging could reduce the
life of the batteries. It is best to charge the
batteries only when the left light indicates that the
battery needs charging. See BATTERIES in the
MAINTENANCE section.
NOTE: The blinking left battery discharge light will
not reset from blinking until the batteries are fully
charged.

OPERATION
15
T7 331040 (11--04)
FAULT INDICATOR
The fault indicator light (shown in upper right)
comes on when there a fault is detected in the
propelling motor, vacuum fan motor, or brush
motors.
Refer to the table below to determine the cause
for the fault or failure.
Indicator(s) Cause(s) Remedy
Fault Light blinks Propel motor is overloaded Contact Tennant service
representative
Fault Light and bottom
Brush Pressure Light
both blink
Right Brush Motor is overloaded
(possibly from string or banding
wrapped around motor)
Remove string / banding from Right
brush motor or Contact
Tennant service representative
Fault Light and top
Brush Pressure Light
both blink
Left Brush Motor is overloaded
(possibly from string or banding
wrapped around motor)
Remove string / banding from Left
brush motor or Contact
Tennant service representative
Fault Light and
Vacuum Fan Light
both blink
Vacuum Fan Motor is overloaded Contact Tennant service
representative

OPERATION
16 T7 331040 (9--06)
CIRCUIT BREAKERS
Circuit breakers are resettable electrical circuit
protection devices that stop the flow of current in
the event of a circuit overload. Once a circuit
breaker is tripped, allow breaker to cool and then
press the reset button to manually reset the
breaker.
If the overload that caused the circuit breaker to
trip is still there, the circuit breaker will continue to
stop current flow until the problem is corrected.
The circuit breakers are located inside the battery
compartment next to the hour meter.
The chart shows the circuit breakers and the
electrical components they protect.
Circuit
Breaker Rating Circuit Protected
CB1 5A Instrument Panel -- power
CB2 15 A Accessories
FUSES
The fuse is a one-time protection device designed
to stop the flow of current in the event of a circuit
overload. The 100 A fuse is located inside the
battery compartment near the hourmeter. It
protects the propel circuit.
NOTE: Always replace the fuse with a fuse of the
same amperage.
HAZARD LIGHT SWITCH (OPTION)
The Hazard Light Switch operates the optional
hazard light.

OPERATION
17
T7 331040 (11--04)
DRAINING AND CLEANING THE TANKS
When cleaning is finished, or when the recovery
tank full indicator comes on, the recovery tank
should be drained and cleaned. The solution tank
then can be filled again for additional cleaning.
1. Drive the machine to a solution disposal drain.
2. Turn the machine ON/OFF key switch off.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, and turn off
machine.
3. Tilt the operator seat forward and hook the
seat latch into place to hold up the seat.
4. Remove the recovery tank drain hose. While
holding the hose up, remove the plug, then
slowly lower the drain hose to the floor drain
or sink.
5. Lift the recovery tank cover. Flush the inside
of the recovery tank with clean water.
WARNING: Flammable materials can
cause an explosion or fire. Do not use
flammable materials in tank(s).
NOTE: DO NOT use steam to clean tanks.
Excessive heat can damage tanks and
components.
6. Rinse the float sensor located inside the
recovery tank.
7. Replace the recovery tank drain hose cap and
mount the drain hose back onto the mounting
clip after the tank is drained.
8. Remove and clean the vacuum fan filter.
Clean the filter with a damp cloth or low
pressure water hose if dirty. Allow the vacuum
fan filter to dry completely before reinstalling it
in the machine.

OPERATION
18 T7 331040 (9--06)
9. Close the recovery tank cover.
10.Remove the solution tank drain hose. While
holding the hose up, remove the plug, then
slowly lower the drain hose to the floor drain
or sink.
11. Tilt the recovery tank back to access the
solution tank. Make sure the recovery tank is
empty before tilting.
12. Flush the solution tank and rinse the float
sensor located inside the back part of the
solution tank. Rinse the screen filter on the
bottom of the tank.
13. Carefully push the recovery tank forward to
close the solution tank.
14. Unhook the seat latch and lower the operator
seat.
15. Clean the front of the solution tank through
the front access port located under the front
solution tank cover. Wipe the bottom of the
cover and the tank seal before replacing the
cover.