Tennant T3 Product manual

ENGLISH - ESPAÑOL - FRANÇAIS
T3
Operator and Parts Manual
Manual De Operador
Y Lista De Repuestos
Opérateur Manuel et
Liste Des Piéces
614343
Rev. 06 (01-2007)
www.tennantco.com
Scrubber--Dryer
Fregadora--Secadora
Brosseuse--Sécheuse
*614343*
The Safe Scrubbing Alternativer
HygenicRFully Cleanable Tanks

OPERATION
2Tennant T3 (01--07)
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.
When ordering replacement parts, use the illustrated
parts list section in this manual. Before ordering parts
or supplies, be sure to have your machine model
number and serial number available. Parts and
supplies may be ordered by phone or mail from any
authorized parts and service center, distributor or from
any of the manufacturer’s subsidiaries.
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 a safe
environmentally way according to your
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
Specifications and parts are subject to change without notice.
Copyright E2004, 2005, 2007 Tennant Company. All rights reserved.
Printed in U.S.A.
MACHINE DATA
Please fill out at time of installation for future reference.
Model No.-
Install. Date -
Serial No.-

OPERATION
Tennant T3 (01--07) 3
TABLE OF CONTENTS (ESPAÑOL....27) (FRANÇAIS....56)
SAFETY PRECAUTIONS 4....................
SAFETY LABELS 5...........................
MACHINE COMPONENTS 6...................
CONTROL PANEL SYMBOLS 6...............
MACHINE INSTALLATION 7...................
UNCRATING MACHINE 7..................
INSTALLING BATTERIES 7................
HOW THE MACHINE WORKS 8...............
BRUSH AND PAD INFORMATION 8............
MACHINE SETUP 9..........................
ATTACHING SQUEEGEE ASSEMBLY 9.....
INSTALLING BRUSH/PAD 9................
INSTALLING FAST--PAK (FaST Model) 10.....
FILLING SOLUTION TANK 10...............
MACHINE OPERATION 11.....................
PRE--OPERATION CHECKS 11..............
OPERATING THE MACHINE 11.............
WHILE OPERATING MACHINE 13...........
BATTERY METER 13.......................
CIRCUIT BREAKER / FUSES 14.............
HOUR METER 14..........................
DRAINING TANKS 14..........................
DRAINING RECOVERY TANK 14............
DRAINING SOLUTION TANK 15.............
CHARGING BATTERIES 15....................
MACHINE MAINTENANCE 17..................
DAILY MAINTENANCE 17...................
MONTHLY MAINTENANCE 18..............
QUARTERLY MAINTENANCE 19............
ANNUAL MAINTENANCE 19................
SQUEEGEE BLADE REPLACEMENT 19......
SQUEEGEE BLADE ADJUSTMENT 20.......
BATTERY MAINTENANCE 20...............
TRANSPORTING MACHINE 21.................
STORING MACHINE 21........................
FaST SYSTEM FREEZE PROTECTION
(FaST Model) 22...........................
RECOMMENDED STOCK ITEMS 22.............
TROUBLESHOOTING 23.......................
LED FAULT CODES (Drive Model Battery Meter
Display) 24...................................
SPECIFICATIONS 25..........................
MACHINE DIMENSIONS 26....................
ELECTRICAL DIAGRAMS 84...................
PARTS LIST 86...............................
REPLACEMENT BRUSH AND PAD DRIVER
GROUP 86................................
RECOVERY TANK GROUP 88...............
SOLUTION TANK GROUP 90................
CONTROL CONSOLE GROUP,
DRIVE MODEL 92.........................
CONTROL CONSOLE GROUP,
BRUSH ASSIST MODEL 94
.................
COMPONENT PANEL GROUP,
DRIVE MODEL 96.........................
COMPONENT PANEL GROUP,
BRUSH ASSIST MODEL 98.................
WHEEL GROUP, DRIVE MODEL
(After Serial #10309875) 100.................
WHEEL GROUP, DRIVE MODEL
(Before Serial #10309875) 102................
WHEEL GROUP, BRUSH ASSIST MODEL
(After Serial #10309875) 104.................
WHEEL GROUP, BRUSH ASSIST MODEL
(Before Serial #10309875) 106................
SCRUB HEAD GROUP, 50 cm
(20 in) MODEL 108..........................
SCRUB HEAD GROUP, 43 cm
(17 in) MODEL 110..........................
SCRUB HEAD LIFT GROUP
(After Serial #10309875) 112.................
SCRUB HEAD LIFT GROUP
(Before Serial #10309875) 114................
SOLUTION GROUP, FaST MODEL 116........
SOLUTION GROUP, STANDARD MODEL 118..
SQUEEGEE GROUP 120....................
BATTERY AND CHARGER GROUP, 12V/155AH,
50 cm (20 in) DRIVE MODEL 122.............
BATTERY AND CHARGER GROUP, 12V/130AH,
50 cm (20 in) BRUSH ASSIST MODEL 123....
BATTERY AND CHARGER GROUP, 12V/105AH,
43 cm (17 in) BRUSH ASSIST MODEL 124....

OPERATION
4Tennant T3 (10--04)
SAFETY PRECAUTIONS
This machine is intended for commercial use. It is
designed exclusively to scrub hard floors in an
indoor environment and is not constructed for any
other use. Only use recommended pads, brushes
and commercially approved floor cleaners
intended for machine application.
All operators must read, understand and practice
the following safety precautions.
The following warning alert symbol and the “FOR
SAFETY” heading are used throughout this manual as
indicated in their description:
WARNING: To warn of hazards or unsafe
practices which could result in severe personal
injury or death.
FOR SAFETY: To identify actions which must be
followed for safe operation of equipment.
Failure to follow these warnings may result in
personal injury, electrical shock, fire or explosion.
WARNING: Fire Or Explosion Hazard:
-- Never Use Flammable Liquids Or Operate
Machine in Or Near Flammable Liquids,
Vapors Or Combustible Dusts.
This machine is not equipped with explosion proof
motors. The electric motors will spark upon start
up and during operation which could cause a flash
fire or explosion if machine is used in an area
where flammable vapors/liquids or combustible
dusts are present.
-- Do Not Pick Up Flammable Materials Or
Reactive Metals.
-- Batteries Emit Hydrogen Gas. Keep Sparks
And Open Flame Away. Keep Battery
Compartment Open When Charging.
WARNING: Electrical Hazard. Disconnect
Battery Cables Before Servicing Machine.
WARNING: Spinning Brush. Keep Hands
Away. Turn Off Power Before Working On
Machine.
The following information signals potentially
dangerous conditions to the operator or
equipment:
FOR SAFETY:
1. Do not operate machine:
-- With flammable liquids or near flammable
vapors as an explosion or flash fire may
occur.
-- Unless trained and authorized.
-- Unless operator manual is read and
understood.
-- If not in proper operating condition.
2. Before starting machine:
-- Make sure all safety devices are in place
and operate properly.
3. When using machine:
-- Go slow on inclines and slippery surfaces.
-- Wear non--slip shoes.
-- Reduce speed when turning.
-- Report machine damage or faulty
operation immediately.
-- Never allow children to play on or around.
-- Follow mixing and handling instructions
on chemical containers.
4. Before leaving or servicing machine:
-- Stop on level surface.
-- Turn off machine.
-- Remove key.
5. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves.
-- Disconnect battery connections before
working on machine.
-- Wear protective gloves and eye protection
when handling batteries or battery cables.
-- Avoid contact with battery acid.
-- Do not power spray or hose off machine.
Electrical malfunction may occur.
-- Use manufacturer supplied or approved
replacement parts.
-- All repairs must be performed by a
qualified service person.
-- Do not modify the machine from its
original design.

OPERATION
Tennant T3 (10--04) 5
6. When transporting machine:
-- Turn machine off.
-- Do not lift machine when batteries are
installed.
-- Get assistance when lifting machine.
-- Use a recommended ramp when
loading/unloading into/off truck or trailer.
-- Use tie--down straps to secure machine to
truck or trailer.
-- Put scrub head in the lowered position.
SAFETY LABELS
The safety labels appear on the machine in the locations indicated. Replace labels if they are missing or become
damaged or illegible.
SPINNING BRUSH LABEL --
Located on scrub head
WARNING: Spinning Brush.
Keep Hands Away. Turn Off
Power Before Working On
Machine.
BATTERY CHARGE LABEL --
Located on bottom side of recovery tank.
WARNING: Fire Or Explosion
Hazard. Batteries Emit Hydrogen
Gas. Keep Sparks And Open
Flame Away. Keep Battery
Compartment Open When
Charging.
WARNING LABEL -- Located on recovery tank cover.

OPERATION
6Tennant T3 (10--04)
MACHINE COMPONENTS
1234
14
59
8
10
11
15
7
16
18
612
25
26
24
19
23
21, 22
13
17
20
27
28 29
30
30
1. Control Handle
2. Activation Bail
3. Speed Control Knob (drive model)
4. Battery Meter
5. Main Power Key Switch
6. Recovery Tank Drain Hose
7. Squeegee Lift Lever
8. Hour Meter
9. FaST System On/Off Switch (FaST Model)
10. Brush Motor Circuit Breaker Button
11. Battery Charge Receptacle
12. Hose Fill-Port
13. Solution Tank Sight Gauge/Drain Hose
14. Down Pressure Lever
15. Scrub Head Lift Pedal
16. Squeegee Assembly
17. Solution Flow Control Knob
18. Solution Tank Clean-Out Port
19. Recovery Tank Support Stand
20. Batteries
21. Solution Tank
22. Bucket Fill Port/Clean--out Port
23. FaST--PAK Concentrate (FaST Model)
24. Recovery Tank
25. Recovery Tank Cover
26. Cup Holder
27. Scrub Head
28. Scrub Head Skirt
29. Pad Driver/Brush Window
30. Wall Rollers
CONTROL PANEL SYMBOLS
Main Power
I/O Key Switch
Solution Flow
Control
Slow Speed Brush Motor
Circuit Breaker
Fast Speed
FaST System I/O Switch
(FaST Model)
5% (3°) Maximum
Machine Climb
Bail Direction Brush Down Pressure

OPERATION
Tennant T3 (01--07) 7
MACHINE INSTALLATION
UNCRATING MACHINE
1. Carefully check the shipping crate for signs of
damage. Report damages at once to carrier.
2. Check the contents list. Contact distributor for
missing items.
Contents:
S2--12 V Batteries -- Optional
S24V Battery Charger -- Optional
S2--Foam Battery Spacers (#630375)
SBattery Tray (#1012994)
S38 cm (15 in.) Battery Cable (#130364)
S4--Battery Cable Rubber Boots
S1--FaST--PAK 365 Concentrate (#1017015)
(FaST Model)
SSqueegee Assembly (#9001178)
SPad Driver -- Optional
Brushes and pads must be purchased separately.
3. To uncrate your machine, remove the shipping
hardware and straps that secure the machine to
the pallet. With assistance, carefully lift the
machine off the pallet.
ATTENTION: Do not roll machine off pallet unless
a ramp is used, machine damage may occur.
ATTENTION: To prevent possible machine
damage, install batteries after removing machine
from shipping pallet.
INSTALLING BATTERIES
WARNING: Fire Or Explosion Hazard.
Batteries Emit Hydrogen Gas. Keep Sparks And
Open Flame Away. Keep Battery Hood Open When
Charging.
FOR SAFETY: When servicing machine, wear
protective gloves and eye protection when
handling batteries and battery cables. Avoid
contact with battery acid.
Battery Specifications:
Two 12 volt deep cycle lead acid batteries.
105 AH battery -- 43cm (17 in) Brush Assist Model
130 AH battery -- 50cm (20 in) Brush Assist Model
155 AH battery -- 50cm (20 in) Drive Model
Maximum battery dimensions: 174 mm ( 8.85 in) W x
380 mm (15 in) L x 284 mm (11.18 in) H.
1. Park the machine on a level surface and remove
the key.
2. Lift the recovery tank to access the battery
compartment (Figure 1).
FIG. 1
3. Carefully install the batteries into the battery
compartment tray and arrange the battery posts
as shown (Figure 2). Insert the two foam spacers
along side the batteries as shown.
ATTENTION: Do not drop the batteries into the
compartment, battery and machine housing
damage may result.
Machine Front
RED
BLACK
Foam Spacers
2
1
Brush Assist Model
Machine Front
1
Drive Model
Foam Spacer
BLACK
RED 2
Foam Spacer
FIG. 2
4. Before connecting the battery cables, make sure
the terminals and posts are clean. Use a post
cleaner and wire brush if necessary.
NOTE: Apply a light coating of non-metallic grease or
protective spray on the cable connections to prevent
battery corrosion.

OPERATION
8Tennant T3 (10--04)
5. Using the supplied battery post boots, connect the
cables to the battery posts in numerical order as
labeled (Figure 2), RED TO POSITIVE (+) &
BLACK TO NEGATIVE (--).
6. After installing the batteries, check the battery
meter charge level (Figure 3). Charge batteries if
needed. (See BATTERY METER on page 13 for
further details)
FIG. 3
HOW THE MACHINE WORKS
Conventional Scrubbing:
Water and detergent from the solution tank flow to the
floor through a manually controlled solution valve. The
brush uses the detergent and water solution to scrub
the floor clean. As the machine moves forward, the
squeegee wipes the dirty solution from the floor into
the recovery tank.
Foam Scrubbing (FaST Model):
(FaST-- Foam Scrubbing Technology)
Unlike conventional scrubbing, the FaST system
injects the patented FaST--PAK concentrate formula
with a small amount of water and air onto the floor.
The mixture creates a large volume of expanded wet
foam for the brush to scrub the floor clean. As the
machine moves forward, the foam collapses and the
squeegee wipes the dirty solution into the recovery
tank leaving the floor clean, dry and residue free.
FaST, the Safe Scrubbing Alternative
t , is certified by
the National Floor Safety Institute (NFSI) for providing
high traction walk--way surfaces.
Using the foam scrubbing application (FaST) can
increase productivity by 30% by reducing the empty/fill
cycle. It will also reduce chemical usage and storage
space. One FaST--PAK can scrub up to 90,000 m2
(1 million sq. ft.).
NOTE: The FaST model can also be operated as a
conventional scrubber. However, it’s important that you
follow the instructions in this manual to prevent FaST
system failure.
BRUSH AND PAD INFORMATION
For best results, use the correct brush type for the
cleaning application. The following are recommended
brushes and pads.
Polypropylene Bristle Scrub Brush (Black) --
Part No. 1016765 -- 43 cm (17 in),
Part No. 1016811 -- 50 cm (20 in)
This general purpose polypropylene bristle scrub
brush is used for scrubbing lightly compacted soilage.
This brush works well for maintaining concrete, wood
and grouted tile floors.
Soft Nylon Bristle Scrub Brush (White) --
Part No. 1016764 -- 43 cm (17 in),
Part No. 1016810 -- 50 cm (20 in)
Recommended for cleaning coated floors without
removing finish. Cleans without scuffing.
Super Abrasive Bristle Scrub Brush (Gray) --
Part No. 1016763 -- 43 cm (17 in),
Part No. 1016805 -- 50 cm (20 in)
Nylon fiber impregnated with abrasive grit to remove
stains and soilage. Strong action on any surface.
Performs well on buildup, grease, or tire marks.
Polishing Pad (White) --
Used to maintain highly polished or burnished floors.
Buffing Pad (Red) --
Used for light duty scrubbing without removing floor
finish.
Scrubbing Pad (Blue) --
Used for medium to heavy--duty scrubbing. Removes
dirt, spills, and scuffs and leaves surface clean ready
for recoating.
Stripping Pad (Brown) --
Used for stripping of floor finish to prepare the floor for
recoating.
Heavy Duty Stripping Pad (Black) --
Used for aggressive stripping of heavy
finishes/sealers, or very heavy duty scrubbing.

OPERATION
Tennant T3 (04--05) 9
MACHINE SETUP
ATTACHING SQUEEGEE ASSEMBLY
1. Park the machine on a level surface and remove
the key.
2. Lift the squeegee lift lever to the upward position
(Figure 4).
FIG. 4
3. Mount the squeegee assembly to the squeegee
pivot bracket as shown (Figure 5). Make sure the
knobs are completely seated into the slots before
securing knobs.
FIG. 5
4. Connect the vacuum hose to the squeegee
assembly. Loop the hose as shown using the hose
clip provided (Figure 6).
FIG. 6
5. Check the squeegee blades for proper adjustment
(See SQUEEGEE BLADE ADJUSTMENT).
INSTALLING BRUSH/PAD
NOTE: Refer to the BRUSH AND PAD
INFORMATION section in this manual or consult your
authorized distributor for brush and pad
recommendations.
1. Park the machine on a level surface and remove
the key.
2. Step down on the scrub head lift pedal to raise the
scrub head off the floor (Figure 7).
FIG. 7
3. Attach the pad to the pad driver before installing
the driver (Figure 8). Secure pad with centerlock.
FIG. 8
4. Align the pad driver/brush mounting studs into the
motor hub slots and give it a quick counter--
clockwise turn towards the spring clip (Figure 9).
Spring Clip
FIG. 9
5. To remove a pad driver or brush, simply give it a
quick turn away from the spring clip.

OPERATION
10 Tennant T3 (10--04)
INSTALLING FaST--PAK (FaST Model)
FaST 365 Floor Cleaning Concentrate (#1017015)
ATTENTION: The FaST--PAK Concentrate Formula
is specifically designed for the FaST system.
NEVER use a substitute, machine damage may
result.
1. Remove the perforated knock-out from the
FaST--PAK carton. Do not remove the bag from
the carton. Pull the hose connector through the
knock--out and remove the orange cap
(Figure 10).
FOR SAFETY: When using machine, always follow
the handling instructions on chemical container.
FIG. 10
2. Lift the recovery tank to access the FaST--PAK
compartment. Connect the supply hose to the
FaST--PAK and place the FaST--PAK carton into
the compartment as shown (Figure 11). Make sure
that the supply hose doesn’t get kinked or
pinched.
NOTE: If any dried concentrate is visible on the
supply hose connector or on the FaST-- PAK
connector, soak and clean with warm water.
FIG. 11
3. When the supply hose is not in use, make sure to
connect it to the storage plug (Figure 12). This will
prevent the FaST system from drying out and
clogging up the supply hose.
FIG. 12
FILLING SOLUTION TANK
The machine is equipped with a hose fill--port at the
rear of the machine, and a bucket fill--port located
under the recovery tank (Figure 13). Before accessing
the bucket fill--port make sure that the recovery tank is
empty.
Fillthesolutiontanktothe“40LMAX”levelonthe
solution tank sight gauge. When using the bucket
fill--port, stop filling when the level reaches the bottom
edge of the fill--port (Figure 13).
FOR FOAM SCRUBBING (FaST Model) : FILL THE
TANK WITH ONLY CLEAN COOL WATER (<21°C /
70°F). DO NOT use hot water or add any conventional
floor cleaning detergents, FaST system failure may
result.
FOR CONVENTIONAL SCRUBBING: Fill the tank
with hot water, 60°C (140°F) maximum. Pour a
recommended cleaning detergent into the solution
tank according to mixing instructions on the bottle.
Fill to bottom edge
FIG. 13

OPERATION
Tennant T3 (10--04) 11
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.
WARNING: Fire or Explosion Hazard.
Never Use Flammable Liquids.
FOR SAFETY: When using machine, follow mixing
and handling instructions on chemical containers.
MACHINE OPERATION
FOR SAFETY: Do not operate machine, unless
operator manual is read and understood.
WARNING: Fire Or Explosion Hazard. Never
Operate Machine In Or Near Flammable Liquids,
Vapors Or Combustible Dusts.
FIRST TIME USE (FaST Model): The FaST system is
protected against freezing during shipment. You must
operate the FaST system for 10 minutes to disperse
the mixture of RV anti--freeze/FaST concentrate
before achieving maximum foam.
PRE--OPERATION CHECKS
-Sweep and dust-mop the floor.
-Check the battery meter charge level (See
BATTERY METER).
-Check the pad/brush for wear.
-Check the squeegee blades for wear and proper
adjustment.
-Make sure the recovery tank is empty and the
float shut--off screen is installed and clean.
-Check the scrub head skirt for wear.
-Foam scrubbing (FaST Model): Check the
FaST--PAK concentrate level.
-Foam scrubbing (FaST Model): Make sure the
solution tank is filled with only cool clean water, no
detergents.
OPERATING THE MACHINE
1. Turn the main power key switch to the on ( I )
position (Figure 14).
FIG. 14
2. FaST Model: To foam scrub, press the FaST
system switch to the on ( I ) position (Figure 15).
NOTE: When using the FaST model for conventional
scrubbing DO NOT turn the FaST system switch on.
Conventional cleaning detergents/restorers may cause
failure to the FaST injection system. Drain, rinse and
refill solution tank with cool clean water before
operating the FaST system.
FIG. 15
3. Lower the squeegee assembly to floor by lowering
the squeegee lift lever (Figure 16). The vacuum
motor will automatically turn on.
FIG. 16

OPERATION
12 Tennant T3 (10--04)
4. Lower the scrub head to the floor by stepping on
the scrub head lift pedal as shown (Figure 17).
FIG. 17
5. Pull the activation bail towards you to start
scrubbing (Figure 18). The drive model will
automatically propel forward. To reverse the drive
model, simply push the activation bail forward.
Drive Model--Reverse
FIG. 18
6. Drive Model: Adjust the speed control knob to a
desired scrubbing speed (Figure 19).
NOTE: 45--60 meters (150--200 ft) per minute is the
recommended scrubbing speed.
FIG. 19
7. For conventional scrubbing, turn the solution flow
control knob to a desired flow rate (Figure 20).
NOTE: FaST Model -- When using the FaST system,
the solution flow control knob is nonfunctional. The
FaST system has a set solution flow rate.
FIG. 20
8. When more brush pressure is needed for heavily
soiled areas simply lift the down pressure lever
(Figure 21).
FIG. 21
9. To stop scrubbing, release the activation bail, raise
the scrub head and the squeegee.

OPERATION
Tennant T3 (08--05) 13
WHILE OPERATING MACHINE
WARNING: Fire Or Explosion Hazard. Do Not
Pick Up Flammable Materials Or Reactive Metals.
1. Overlap each scrubbing path by 5 cm (2 in).
2. Keep the machine moving to prevent damage to
floor finish.
3. Wipe the squeegee blades with a cloth if blades
leave streaks. Pre-sweep the area to prevent
streaking.
4. Do not operate the machine on inclines that
exceed 5% (3°).
FOR SAFETY: When using machine, go slow on
inclines and slippery surfaces.
5. Pour a recommended foam control solution into
the recovery tank if excessive foam appears.
ATTENTION: Do not allow foam to enter the float
shut-off screen, vacuum motor damage will result.
Foam will not activate the float shut-off screen.
6. Use the double scrubbing method for heavily
soiled areas. First scrub the area with the
squeegee up, let solution set for 3--5 minutes, then
scrub the area a second time with the squeegee
down.
7. Change or rotate pads as needed.
8. Observe the battery meter discharge level (See
BATTERY METER).
9. Observe the solution tank sight gauge for remaining
solution. 10 liters will last approximately 10 minutes
during conventional scrubbing and 20 minutes
during foam scrubbing with the FaST Model.
10. When the solution tank runs dry, empty the
recovery tank before refilling.
11. When leaving the machine unattended, park the
machine on a level surface and remove the key.
12. Perform the Daily Maintenance procedures after
scrubbing (See MACHINE MAINTENANCE).
BATTERY METER
The battery meter displays the charge level of the
batteries. When the batteries are fully charged, all
indicator lights are lit. As the batteries discharge, the
indicator lights will begin to go out from right to left.
To prolong the life of the batteries, do not allow the
indicator lights to go beyond the discharge level as
described below.
NOTE: To prolong the life of the batteries ONLY
recharge the batteries when the machine is used for a
total of 30 minutes or more.
DRIVE MODEL: When the discharge level reaches
the first red light (Figure 22), stop scrubbing and
recharge the batteries. If the last red light begins to
flash, the scrubbing function will shut off automatically.
This protects the batteries from total discharge. Drive
the machine to the charging area and recharge the
batteries immediately.
NOTE: The Drive Model battery meter also displays
machine fault codes. If a fault is detected the LED
bars will flash specific fault codes (See LED FAULT
CODES).
Stop scrubbing and recharge batteries
FIG. 22
BRUSH ASSIST MODEL: When the discharge level
reaches the last yellow light (Figure 23), the light will
begin to flash, stop scrubbing and recharge the
batteries. If the red light appears, the scrubbing
function will shut off automatically. This protects the
batteries from total discharge. Recharge the batteries
immediately.
Stop scrubbing and recharge batteries
FIG. 23

OPERATION
14 Tennant T3 (10--04)
CIRCUIT BREAKER / FUSES
The machine is equipped with a resettable circuit
breaker to protect the brush motor from damage. The
circuit breaker button is located on the control panel
(Figure 24). If the circuit breaker should trip, determine
the cause, allow the motor to cool, and then manually
reset the circuit breaker button.
The machine is also equipped with three fuses located
inside the control console: 30A Main fuse (drive
model), 5A Main fuse (brush assist model), 25A
vacuum motor fuse and 7.5A FaST Pump fuse. When
replacing a fuse never substitute a higher Amp rated
fuse than specified.
Contact an Authorized Service Center for
machine repairs.
FIG. 24
HOUR METER
The hour meter records the number of total hours the
brush motor has been powered on. Use the hour
meter to determine when to perform recommended
maintenance procedures and to record service history
(Figure 25).
FIG. 25
DRAINING TANKS
The recovery tank should be drained and cleaned out
after every use. The solution tank should be cleaned
out periodically to remove any corrosion.
Transport the machine to a draining site, turn the key
off and follow the draining instructions below:
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine
and remove key.
DRAINING RECOVERY TANK
1. Remove the recovery tank drain hose cap by
turning it counter--clockwise and drain the tank
(Figure 26).
FIG. 26
NOTE: When using a bucket to drain the machine, do
not use the same bucket to fill the solution tank.
2. Open the recovery tank cover and rinse out the
tank. Use a rag to remove any excess dirt
(Figure 27).
FIG. 27

OPERATION
Tennant T3 (10--04) 15
3. Remove and clean the float shut-off screen
located in the recovery tank (Figure 28).
FIG. 28
DRAINING SOLUTION TANK
1. To drain any remaining water from the solution
tank, pull the solution tank level hose off the hose
fitting as shown (Figure 29).
FIG. 29
2. To rinse out the solution tank, remove the
clean--out cap at the rear of the machine and
spray water, 60°C (140°F) maximum, directly into
the two fill--ports located under the recovery tank
(Figure 30).
FIG. 30
3. Remove and clean the solution tank filter
(Figure 31). Turn the filter counter--clockwise to
remove.
FIG. 31
4. After rinsing out the tank, securely replace the
solution tank filter, clean--out cap, fill--port covers
and hose.
CHARGING BATTERIES
ATTENTION: To prolong the life of the batteries
and to provide optimum machine performance,
ONLY recharge the batteries after a total of 30
minutes of use or more. Do not leave batteries
discharged for lengthy periods.
The following charging instructions are intended for
battery chargers supplied with the machine. Only use
a battery charger with the following specifications to
prevent battery damage.
BATTERY CHARGER SPECIFICATIONS:
SCHARGER TYPE:
-- FOR LEAD ACID BATTERIES
SOUTPUT VOLTAGE - 24 VOLTS
SOUTPUT CURRENT - 15 AMPS
SAUTOMATIC SHUTOFF CIRCUIT
SFOR DEEP CYCLE BATTERY CHARGING
1. Transport the machine to a well--ventilated area
for charging.
WARNING: Fire Or Explosion Hazard.
Batteries Emit Hydrogen Gas. Keep Sparks And
Open Flame Away. Keep Battery Compartment
Open When Charging.
2. Park the machine on a level surface and turn the
key off.

OPERATION
16 Tennant T3 (10--04)
3. Before charging the batteries, check the
electrolyte level in each battery cell (Figure 32).
FIG. 32
FOR SAFETY: When servicing machine, wear
protective gloves and eye protection when
handling batteries and battery cables. Avoid
contact with battery acid.
The electrolyte level (A) should slightly cover the
battery plates (B). Add distilled water as needed.
DO NOT OVERFILL, the fluid may expand and
overflow while charging. Replace cell caps before
charging (Figure 33).
A
B
FIG. 33
4. Rest the recovery tank on the support stand to
promote ventilation during charging (Figure 34).
FIG. 34
5. Connect the charger’s AC power supply cord to a
properly grounded receptacle.
6. Connect the charger’s DC cord to the machine’s
battery receptacle at the rear of the machine
(Figure 35).
FIG. 35
7. The charger will automatically begin charging and
shut off when fully charged.
NOTE: The machine will not operate once the battery
charger is connected.
ATTENTION: Do not disconnect the charger’s DC
cord from the machine’s receptacle when the
charger is operating. Arcing may result. If the
charger must be interrupted during charging,
disconnect the AC power supply cord first.
WARNING: Fire Or Explosion Hazard.
Batteries Emit Hydrogen Gas. Keep Sparks And
Open Flame Away. Keep Battery Compartment
Open When Charging.
8. After charging, check the electrolyte level (A)
again. The level should be approximately 1 cm
(.375 in) from the bottom of the fill--port (B) (Figure
36). Add distilled water if needed. DO NOT
OVERFILL.
A
B
FIG. 36

OPERATION
Tennant T3 (04--05) 17
MACHINE MAINTENANCE
To keep the machine in good working condition, simply
follow the daily, monthly and quarterly maintenance
procedures.
WARNING: Electrical Hazard. Disconnect
Battery Cables Before Servicing Machine.
DAILY MAINTENANCE (After Every Use)
1. Drain and clean out the recovery tank (Figure 37).
FIG. 37
2. Remove and clean the float shut--off screen
located in the recovery tank (Figure 38).
FIG. 38
3. Drain the solution tank and rinse out the inside
with hot water, 60°C (140°F) maximum
temperature, as needed (Figure 39)
FIG. 39
4. Remove and clean the solution tank filter (Figure
40). Turn the filter counter--clockwise to remove.
FIG. 40
5. Remove the pad/brush and clean. Rotate pad or
replace when worn (Figure 41).
FIG. 41
6. Wipe the squeegee blades clean (Figure 42).
Store the squeegee assembly in the raised
position to prevent blade damage.
FIG. 42

OPERATION
18 Tennant T3 (10--04)
7. Check the condition of the squeegee blade wiping
edge (Figure 43). Rotate blade if worn.
(See SQUEEGEE BLADE REPLACEMENT)
FIG. 43
8. Clean the machine with an all purpose cleaner and
damp cloth (Figure 44).
FOR SAFETY: When cleaning machine, do not
power spray or hose off machine. Electrical
malfunction may occur.
FIG. 44
9. Inspect the condition of the scrub head skirt,
replace if worn or damaged (Figure 45).
FIG. 45
10. FaST Model: Connect the FaST--PAK supply hose
to the storage plug when not in use (Figure 46).
Remove any dried concentrate from the hose
connector by soaking it in warm water.
FIG. 46
11. Recharge the batteries after a total of 30 minutes
of use or more (Figure 47). (See CHARGING
BATTERIES).
FIG. 47
MONTHLY MAINTENANCE (Every 80 hours of use)
1. Clean the battery tops to prevent corrosion (See
BATTERY MAINTENANCE).
2. Check for loose battery cable connections.
3. Inspect and clean the recovery tank cover seal
(Figure 48). Replace if damaged.
FIG. 48
4. Lubricate all pivot points and rollers with silicone
spray then coat with a water resistant grease to
maintain smooth operation.
5. Check the machine for loose nuts and bolts.

OPERATION
Tennant T3 (06--05) 19
6. Check the machine for leaks.
QUARTERLY MAINTENANCE
Every 250 hours, check the drive transaxle motor
(drive model), the vacuum motor and the brush motor
for carbon brush wear. Replace carbon brushes when
worn to a length of 10 mm (.375 in) or less.
Contact an Authorized Service Center for
machine repairs.
WARNING: Electrical Hazard. Disconnect
Battery Cables Before Servicing Machine.
ANNUAL MAINTENANCE
(Every 1000 hours of use)
FaST Model Only:
Clean or replace the orifice plate and filter screen
located inside the solution injector assembly. Order
service kit p/n 9001489.
1. To access the orifice plate and filter, lower the scrub
head and remove the injector assembly from the
clamps located behind the front edge of the machine
(Figure 49).
FIG. 49
2. Open the black filter housing and clean or replace
the orifice plate and filter (Figure 50).
FIG. 50
SQUEEGEE BLADE REPLACEMENT
Each squeegee blade has four wiping edges. When
the blades become worn, simply rotate the blades
end-for-end or top-to-bottom for a new wiping edge.
Replace blade if all four edges are worn.
1. Remove the squeegee assembly from the machine.
2. Loosen the band clamp and remove the band from
the squeegee assembly (Figure 51).
FIG. 51
3. Rotate the rear blade to a new wiping edge and
reinstall the band. Make sure the notched edge of
the band is facing downward (Figure 52).
FIG. 52

OPERATION
20 Tennant T3 (08--05)
4. To replace the front blade, remove the rear band
and fully loosen the four squeegee assembly
knobs, do not remove the knobs. Lift and tilt the
retainer plate to access the front blade
(Figure 53). Rotate the front blade to a new wiping
edge and return the retainer plate. Make sure the
retainer plate tabs engage the blade slots.
Reinstall the band then retighten the knobs.
Retainer Plate
FIG. 53
SQUEEGEE BLADE ADJUSTMENT
The adjustment of the squeegee blades are factory set
and require no further adjustment. Squeegee
adjustment is only necessary if it comes out of
adjustment.
For optimum squeegee blade performance, the
squeegee assembly casters must be adjusted to a
specified height as described below.
1. To check the squeegee assembly for proper
adjustment, remove the squeegee assembly from
the machine and place it on a level surface.
Measure the distance between the caster and the
surface. It should measure approximately 3 mm
(1/16”) (Figure 54).
2. To adjust the caster height, loosen the top nut and
remove the plastic bearing cover to access the
adjustment nut. Turn the adjustment nut until
properly adjusted (Figure 54). After adjusting,
tighten the top nut and replace the plastic bearing
cover. Repeat step for the other caster.
3mm
1/16”
FIG. 54
3. During machine operation, with the casters
properly adjusted, the squeegee blades should
deflect as shown (Figure 55).
FIG. 55
BATTERY MAINTENANCE
WARNING: Fire Or Explosion Hazard.
Batteries Emit Hydrogen Gas. Keep Sparks And
Open Flame Away. Keep Battery Compartment
Open When Charging.
FOR SAFETY: When servicing machine, wear
protective gloves and eye protection when
handling batteries and battery cables. Avoid
contact with battery acid.
1. Check the specific gravity using a hydrometer to
determine the charge level and the condition of the
batteries (Figure 56). If one or more of the battery
cells read lower than the other battery cells (0.050
or more), the cell is damaged, shorted, or is about
to fail. Check the hydrometer readings against the
following chart to determine the remaining battery
charge level.
NOTE: Do not take readings immediately after adding
distilled water. If the water and acid are not thoroughly
mixed, the readings may not be accurate.
FIG. 56