Tennant 5400 Product manual

ENGLISH - ESPAÑOL
Scrubber
Fregadora
5400
Model No.:
606931- Disc Standard, 610mm (24 in)
606932- Disc ES, 610mm (24 in)
607525- Disc Wand Prep, 610mm (24 in)
606933- Disc Deluxe, 610mm (24 in)
606934- Cylindrical Standard, 610mm (24 in)
606935- Cylindrical ES, 610mm (24 in)
607526- Cylindrical Wand Prep, 610mm (24 in)
606936- Cylindrical Deluxe, 610mm (24 in)
610877- Disc Standard, 660mm (26 in)
610878- Disc ES, 660mm (26 in)
610879- Disc Wand Prep, 660mm (26 in)
610880- Disc Deluxe, 660mm (26 in)
398040- Disc FaST, 610mm (24 in)
398041- Disc FaST, 660mm (26 in)
Operator and Parts Manual
Manual del Operador y Piezas
606862
Rev. 06 (05-03)
Patents Pending
The safe scrubbing alternativet
CUSTOMER SERVICE:
1–800–982–7658
1–763–513–2850
FAX: [phone]
1–763–513–2142
TECHNICAL SUPPORT:
1–800–522–7839 EXT. 5356
TENNANT COMPANY
701 NORTH LILAC DRIVE
MINNEAPOLIS, MN 55422
MAILING ADDRESS:
TENNANT COMPANY
P.O. BOX 1452
MINNEAPOLIS, MN 55440–1452

OPERATION
2Tennant 5400 (05–03)
This manual is furnished with each new 5400 model.
It provides necessary operating and maintenance
instructions and an illustrated parts list.
Read this manual completely and understand the
machine before operating or servicing.
When ordering replacement parts, use the parts lists
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
Service Center or Distributor.
This machine will provide excellent service. However,
the best results will be obtained at minimum costs if:
The machine is operated with reasonable care.
The machine is maintained regularly - per the
machine maintenance instructions provided.
The machine is maintained with manufacturer
supplied or equivalent parts.
MACHINE DATA
Please fill out at time of installation for future reference.
ModelNo.-
Install. Date -
Serial No.-
1998, 1999, 2000, 2001, 2002, 2003 Tennant Company Printed in U.S.A.
FaST, The safe scrubbing alternativeand ESare United States trademarks of
Tennant Company.

OPERATION
Tennant5400 (05–03) 3
TABLE OF CONTENTS (ESPAÑOL ÍNDICE....35)
SAFETY PRECAUTIONS 4. . . . . . . . . . . . . . . . . . . .
SAFETY LABELS 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
MACHINE COMPONENTS 6. . . . . . . . . . . . . . . . . . .
CONTROL CONSOLE SYMBOLS 7. . . . . . . . . . . .
MACHINE INSTALLATION 8. . . . . . . . . . . . . . . . . . .
UNCRATING MACHINE 8. . . . . . . . . . . . . . . . . .
INSTALLING BATTERIES 8. . . . . . . . . . . . . . . .
MACHINE SETUP 9. . . . . . . . . . . . . . . . . . . . . . . . . .
ATTACHING SQUEEGEE ASSEMBLY 9. . . . .
INSTALLING BRUSHES/PADS –
DISC SCRUB HEAD MODEL 9. . . . . . . . . . . . .
INSTALLING BRUSHES/PADS –
CYL. BRUSH SCRUB HEAD MODEL 10. . . . . .
INSTALLING FaSTPAK AGENT (OPTION) 10
FILLING SOLUTION TANK 11. . . . . . . . . . . . . . .
MACHINE OPERATION 11. . . . . . . . . . . . . . . . . . . . .
PRE–OPERATION CHECKS 11. . . . . . . . . . . . . .
OPERATING MACHINE 11. . . . . . . . . . . . . . . . . .
EMERGENCY STOPPING (OPTION) 13. . . . . .
OPERATING FaST SCRUB
SYSTEM (OPTION) 13. . . . . . . . . . . . . . . . . . . . . .
OPERATING ES(OPTION) 14. . . . . . . . . . . . .
WHILE OPERATING MACHINE 14. . . . . . . . . . .
OPERATING OFF-AISLE WAND (OPTION) 15.
CIRCUIT BREAKERS / FUSE 16. . . . . . . . . . . . .
HOUR METER 16. . . . . . . . . . . . . . . . . . . . . . . . . .
DRAINING TANKS 16. . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING SCRUB HEAD 17. . . . . . . . . . . . . . . . . .
DISC BRUSH SCRUB HEAD 17. . . . . . . . . . . . . .
CYLINDRICAL BRUSH SCRUB HEAD 17. . . . .
REMOVING BRUSHES/PADS 19. . . . . . . . . . . . . . . .
DISC SCRUB HEAD 19. . . . . . . . . . . . . . . . . . . . .
CYLINDRICAL SCRUB HEAD 19. . . . . . . . . . . . .
CHANGING SCRUB HEADS 20. . . . . . . . . . . . . . . . .
CHARGING BATTERIES 21. . . . . . . . . . . . . . . . . . . .
MACHINE MAINTENANCE 22. . . . . . . . . . . . . . . . . .
DAILY MAINTENANCE 22. . . . . . . . . . . . . . . . . . .
WEEKLY MAINTENANCE 23. . . . . . . . . . . . . . . .
MONTHLY MAINTENANCE 24. . . . . . . . . . . . . . .
QUARTERLY MAINTENANCE 24. . . . . . . . . . . .
SQUEEGEE BLADES 25. . . . . . . . . . . . . . . . . . . .
BATTERY MAINTENANCE 25. . . . . . . . . . . . . . .
MACHINE JACKING 26. . . . . . . . . . . . . . . . . . . . . . . .
TRANSPORTING MACHINE 27. . . . . . . . . . . . . . . . .
STORING MACHINE 27. . . . . . . . . . . . . . . . . . . . . . . .
FREEZE PROTECTION 27. . . . . . . . . . . . . . . . .
FaSTSYSTEM FREEZE PROTECTION 27.
RECOMMENDED STOCK ITEMS 29. . . . . . . . . . . . .
TROUBLESHOOTING 30. . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS 32. . . . . . . . . . . . . . . . . . . . . . . . . .
MACHINE DIMENSIONS 33. . . . . . . . . . . . . . . . . . . .
ELECTRICAL DIAGRAMS 69. . . . . . . . . . . . . . . . . . .
PARTS LIST 72. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT BRUSH AND PAD
DRIVER GROUP 72. . . . . . . . . . . . . . . . . . . . . . . .
SOLUTION TANK GROUP 74. . . . . . . . . . . . . . . .
RECOVERY TANK GROUP 76. . . . . . . . . . . . . . .
CONSOLE GROUP 78. . . . . . . . . . . . . . . . . . . . . .
CONSOLE PANEL GROUP 80. . . . . . . . . . . . . . .
DRIVE GROUP 82. . . . . . . . . . . . . . . . . . . . . . . . .
SCRUB HEAD ACTUATOR GROUP 84. . . . . . .
DISC SCRUB HEAD GROUP, 610mm (24 in) 86
DISC SCRUB HEAD GROUP, 660mm (26 in) 88
CYLINDRICAL BRUSH SCRUB HEAD GROUP
610mm (24 in) 90. . . . . . . . . . . . . . . . . . . . . . . . . . .
SOLUTION FLOW GROUP 94. . . . . . . . . . . . . . .
SQUEEGEE CONTROL GROUP 96. . . . . . . . . .
SQUEEGEE ASSEMBLY GROUP –STD.
WIDTH, 838mm (33 in) 98. . . . . . . . . . . . . . . . . . .
BATTERY AND CHARGER GROUP 100. . . . . . .
BATTERY CABLE GROUP 101. . . . . . . . . . . . . . .
OPTIONS 102. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SQUEEGEE ASSEMBLY GROUP –
EXTRA WIDE, 940mm (37 in) 102. . . . . . . . . . . . .
SQUEEGEE ASSEMBLY GROUP –
NARROW AISLE, 736mm (29 in) 104. . . . . . . . . .
ACCESSORY CONSOLE GROUP 106. . . . . . . . .
ESSOLUTION GROUP 108. . . . . . . . . . . . . . . .
WAND SOLUTION GROUP 109. . . . . . . . . . . . . . .
HARD FLOOR WAND ASSEMBLY 110. . . . . . . . .
HOSE ASSEMBLY 112. . . . . . . . . . . . . . . . . . . . . . .
FaSTCONSOLE PANEL GROUP 113. . . . . . . .
FaSTSOLUTION GROUP 114. . . . . . . . . . . . . .
FaSTSOLUTION PUMP BREAKDOWN 116. .
FaSTAIR PUMP BREAKDOWN 116. . . . . . . . .

OPERATION
4Tennant 5400 (05–03)
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. Use only recommended commercially
available 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, electrocution, electrical shock,
fire or explosion.
WARNING: Do Not 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.
WARNING: Do Not Pick Up Flammable
Materials Or Reactive Metals.
WARNING: Keep Sparks And Open Flame
Away. Keep Battery Hood Open When Charging.
WARNING: Disconnect Battery Cables Before
Servicing Machine.
WARNING: Moving Parts. Turn Off Power
Before Working On Machine.
WARNING: Moving parts. Turn off power
before working on machine.
WARNING: Actuator pinch point. Stay clear
of head lift area.
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 operation 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 no–slip shoes.
–Use care when reversing machine.
–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.
5. When servicing machine:
–Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves.
–Use hoist or jack that will support the
weight of the machine.
–Block machine tires before jacking up.
–Wear eye and ear protection when using
pressurized air or water.
–Disconnect battery connections before
working on machine.
–Wear protective gloves and safety glasses
when handling batteries or battery cables.
–Avoid contact with battery acid.
–Use manufacturer supplied or approved
replacement parts.
–All repairs must be performed by a
qualified service person.
–Do not modify the machine from it’s
original design.
6. When transporting machine:
–Turn machine off.
–Get assistance when lifting machine.
–Do not lift machine when batteries are
installed.

OPERATION
Tennant5400 (05–03) 5
–Use a recommended ramp when
loading/unloading into/off truck or trailer. –Use tie–down straps to secure machine to truck or trailer.
SAFETY LABELS
The safety labels appear on the machine in the
locations indicated. Replace labels if they become
damaged or illegible.
MOVING PARTS LABEL –LOCATED
ON THE SCRUB HEAD SHROUD.
WARNING: Moving parts. Turn
off power before working on
machine.
WARNING LABEL –LOCATED ON THE RECOVERY TANK COVER.
BATTERY CHARGE LABEL –
LOCATED ON THE RECOVERY TANK
COVER AND BOTTOM SIDE OF
RECOVERY TANK.
WARNING: Keep sparks and
open flame away. Keep battery
hood open when charging.
GENERAL HAZARD
LABEL –LOCATED ON
THE ACTUATOR
MOUNTING BRACKET
WARNING: Actuator
pinch point. Stay clear
of head lift area.

OPERATION
6Tennant5400 (05–03)
MACHINE COMPONENTS
11
8
5
2
6
4
3
10
7
22
13
14
15
12
9
3420 19
35
18
1
23
24 25
27
21
28
31
30
32 33
26
28
36
26
37
1. Key Switch
2. Power ON/OFF Indicator Light
3. Speed Control Knob
4. Brush Pressure Switch
5. Brush Pressure Meter
6. Battery Meter
7. Control Grips
8. Solution ON/OFF Switch
9. Squeegee Lift Lever
10. Control Console
11. Control Console Height Adjustment Lever
12. Power Kill Button (Option)
13. Wand ON/OFF Switch (Option)
14. ESON/OFF Switch (Option)
15. ESPump Indicator Light (Option)
16. FaST System ON/OFF Switch (Option)
17. FaSTPAK Dispensing System (Option)
18. Charger Plug
19. Recovery Tank Drain Hose
20. Solution Tank Drain Hose
21. Solution Fill Port
22. Solution Flow Adjustment Knob
23. Squeegee Vacuum Hose
24. Squeegee Assembly
16
17
Patents Pending
Model
25. Squeegee Thumb Knobs
26. Wall Rollers
27. Recovery Tank Lid
28. Recovery Tank
29. Solution Tank
30. Interchangeable Disc Scrub Head
31. Scrub Head Leveling Screw
32. Scrub Head Skirt
33. Drive Wheels
34. Circuit Breaker Panel
35. Solution Tank Level Hose
36. Parking Brake (Option)
37. Interchangeable Cylindrical Brush Scrub Head

OPERATION
Tennant5400 (05–03) 7
CONTROL CONSOLE SYMBOLS
Main Power
Indicator Light
Brush Pressure
Switch
Solution Switch &
Solution Control
Brush Motor (RH)
30A Circuit Breaker
Main Power 10A
Circuit Breaker
Read Manual
Before Operating
Battery Charge
Meter
Slow Speed
Brush Pressure
Meter
Brush Motor (LH)
30A Circuit Breaker
Circuit Board 2A Fuse
Vacuum Motor 25A
Circuit Breaker
ES(Extended Scrub)
Off-Aisle Wand
ESPump
Indicator Light
2
1
2A
Drive Motor 15A
Circuit Breaker
Fast Speed

Parking Brake
(Option)
FaSTSystem
10A Circuit Breaker (option)
FaSTSystem
Switch (option)

OPERATION
8Tennant5400 (05–03)
MACHINE INSTALLATION
UNCRATING MACHINE
1. Carefully check carton for signs of damage.
Report damages at once to carrier.
2. Check Carton Contents list, contact distributor for
missing items.
Carton Contents:
–Battery Tray
–4 Batteries, 235 Ah 6 V
–3 Battery Cables
–8 Battery Post Covers
–8 Battery Cable Rubber Boots
–Squeegee Assembly
–Battery Charger (Packaged Separately)
Scrub brushes, pad drivers and pads must be
purchased separately (See PARTS LIST section).
3. To uncrate your machine: unbolt rear of chassis
from shipping pallet, remove shipping straps and
carefully lift machine with assistance or use a
ramp to remove from pallet.
ATTENTION: Do not roll machine off pallet,
machine damage may occur.
ATTENTION: To prevent possible machine
damage, install batteries after removing machine
from shipping pallet.
INSTALLING BATTERIES
WARNING: Keep Sparks And Open Flame
Away. Keep Battery Hood Open When Charging.
FOR SAFETY: When servicing machine, wear
protective gloves and safety glasses when
handling batteries and battery cables. Avoid
contact with battery acid.
Recommended Battery Specifications:
Four 6 volt, deep cycle, 235 amp. hour batteries.
Maximum battery dimensions are 181 mm (7.13 in) W
x 260 mm (10.25 in) L x 292 mm (11.50 in) H.
1. Remove key from machine and set parking brake,
if equipped.
2. Hinge open recovery tank to access battery
compartment. Remove loose battery cables from
compartment (Figure 1).
FIG. 1
3. Carefully install batteries into battery compartment
tray and arrange battery posts as shown
(Figure 2).
Machine Front
5
RED
BLACK
4
3
12
FIG. 2
ATTENTION: Do not drop batteries into
compartment, battery and machine housing
damage may result. This damage is not covered
by warranty.
4. Before connecting battery cables, make sure
terminals and posts are clean. Use a post cleaner
and wire brush to clean posts and terminals.
5. Connect cables to battery posts in numerical order
as labeled, RED TO POSITIVE & BLACK TO
NEGATIVE, use battery post covers and rubber
boots supplied (Figure 2).
NOTE: Apply a light coating of non-metallic grease or
protective spray on the cable connections to prevent
battery corrosion.
6. Check battery meter charge level. Machine must
be in full operation for correct reading (See
MACHINE OPERATION). Charge batteries if
necessary.

OPERATION
Tennant5400 (07–02) 9
MACHINE SETUP
ATTACHING SQUEEGEE ASSEMBLY
1. Turn key to the off position.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
2. Raise squeegee mount bracket using squeegee lift
lever (Figure 3).
FIG. 3
3. Loosen two thumb knobs on squeegee and slide
squeegee into slots of squeegee mount bracket.
Tighten thumb knobs securely (Figure 4).
FIG. 4
4. Connect vacuum hose to squeegee assembly,
make sure vacuum hose forms a trap using rubber
band provided (Figure 5).
FIG. 5
INSTALLING BRUSHES/PADS
(DISC Scrub Head Model)
NOTE: Consult an authorized distributor for pad/brush
recommendations.
1. Press bottom half of brush pressure switch until
scrub head is completely raised (Figure 6).
FIG. 6
2. Turn key to the off position.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
3. Attach pads to pad drivers before installing
drivers. Secure pad with centerlock (Figure 7).
FIG. 7

OPERATION
10 Tennant5400 (05–03)
4. Align brush/pad driver under motor hub and push
driver upward to engage. Be certain that
brushes/pad drivers are secure before operating
machine (Figure 8).
FIG. 8
5. To remove brush/pad drivers: raise scrub head,
turn machine off, remove key and push brush
release knobs downward (Figure 9).
FIG. 9
(For Cylindrical Brush Scrub Head Model)
See REMOVING BRUSHES/PADS.
INSTALLING FaSTPAK AGENT (OPTION)
Machine must be equipped with the FaSTOption.
1. Remove the perforated knock-outs from the
FaSTPAK 365 Floor Cleaning Concentrate
carton. Do not remove the bag from the carton.
Pull out the bag’s hose connector at the bottom of
the bag and remove the orange hose cap from the
connector (Figure 10).
ATTENTION: The FaSTPAK 365 Floor Cleaning
Concentrate is specifically designed for the
FaSTsystem scrubbing application. NEVER use
a substitute, machine damage will result.
FOR SAFETY: When using machine, always follow
the handling instructions on chemical container.
FIG. 10
2. Place the FaSTPAK carton in the carton holder
at the rear of the machine and connect the supply
hose to the FaSTPAK bag (Figure 11).
FIG. 11
NOTE: If any dried concentrate is visible on the
supply hose connector or on the FaSTPAK
connector, soak and clean with warm water.
3. Make sure to connect the supply hose onto the
hose storing plug when not in use (Figure 12).
This will prevent the FaSTsolution system from
drying out and clogging up the supply hose.
FIG. 12
4. The FaSTsolution system MUST be primed for
first time use. To prime system, make sure the
solution tank is empty and operate the machine in
the FaSTScrub Mode for 3 minutes (See
MACHINE OPERATION). This step is only
required for first time FaSTtsystem use.

OPERATION
Tennant5400 (05–03) 11
FILLING SOLUTION TANK
ATTENTION: When using FaSTsystem (Option).
USE CLEAR COOL WATER ONLY.DO NOT add
cleaning agents in solution tank. Conventional
cleaning agents/restorers may cause failure to the
FaSTsolution system.
1. Transport machine to filling station. Raise
squeegee and scrub head when transporting.
2. Turn key to the off position.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
3. Remove fill-port cover at front of machine and fill
solution tank with clean water, 60°C (140°F)
maximum. The clear hose at rear of machine
indicates amount of water in solution tank
(Figure 13).
FIG. 13
4. For conventional scrubbing, pour a recommended
cleaning detergent into the solution tank according
to mixing instructions on bottle. For FaST
scrubbing (Option), DO NOT add cleaning agents in
solution tank.
FOR SAFETY: When using machine, follow mixing
and handling instructions on chemical containers.
ATTENTION: Use only recommended cleaning
detergents for conventional scrubbing, DO NOT
use substitutes. Consult an authorized distributor
for cleaning detergent recommendations.
WARNING: Do Not Use Flammable Liquids Or
Operate Machine In Or Near Flammable Liquids,
Vapors Or Combustible Dusts.
5. If equipped with ESoption, pour between 19 and
38 liters (5 and 10 gal) of hot water, 60°C (140°F)
maximum, into recovery tank (Figure 14) (See
OPERATING ESOPTION).
FIG. 14
MACHINE OPERATION
FOR SAFETY: Do not operate machine, unless
operation manual is read and understood.
PRE–OPERATION CHECKS
1. Sweep and dust-mop floor (disc brush model only).
2. Check battery meter’s charge level, machine must
be in full operation for correct reading.
3. Check that pads/brushes are installed.
4. Lower pads/brushes to floor and check that scrub
skirt touches floor all the way around scrub head.
5. Check that squeegee is installed and condition of
squeegee blades.
6. Check that debris trough is installed and empty
(cylindrical brush model).
7. FaSTScrubbing (option): Make sure that the
solution tank is filled with clear cool water only.
All conventional cleaning agents/restorers must be
drained and rinsed from solution tank. Check
FaSTPAK agent level, replace carton as
needed.
OPERATING MACHINE
NOTE: If your machine is equipped with the FaSTor
ESOption, refer to pages 13 and 14 for additional
operation procedures.
1. Release parking brake, if equipped (Figure 15).
FIG. 15

OPERATION
12 Tennant5400 (05–03)
2. Adjust control console to a comfortable operating
height, 5 settings. To adjust height, pull control
console trigger and lift or lower console to desired
height, release trigger to lock position (Figure 16).
FIG. 16
3. Turn the key and solution switch to the ON
position.
4. To conventional scrub with a FaSTmodel, make
sure the FaSTsystem switch is in the off (O)
position (Figure 17).
FIG. 17
5. Lower squeegee assembly to floor using the
squeegee lift lever, vacuum motor will
automatically turn on (Figure 18).
FIG. 18
6. Press top half of brush pressure switch to lower
scrub head to floor (Figure 19).
FIG. 19
NOTE: The brushes and solution will start when
control grips are rotated.
7. Turn speed control knob to slowest setting
(Figure 20).
FIG. 20
8. Rotate control grips completely forward and
gradually turn speed control knob to a desired
maximum scrubbing speed (Figure 21).
FIG. 21

OPERATION
Tennant5400 (05–03) 13
9. Turn solution flow knob to desired solution flow
rate (Figure 22).
NOTE: When scrubbing with the FaSTOption, the
solution flow is pre-set by the FaSTsystem.
FIG. 22
10. Observe brush pressure meter while operating.
Meter should read within the green zone, press
brush pressure switch to adjust (Figure 23).
ATTENTION: Do not operate machine with pad
pressure meter in red zone, circuit breakers will
trip and floor damage may occur.
FIG. 23
11. To operate machine in reverse, gradually rotate
control grips backwards.
12. To stop scrubbing, release control grips, raise
scrub head and squeegee.
13. After scrubbing, perform the Daily Maintenance
procedures (See MACHINE MAINTENANCE).
EMERGENCY STOPPING (OPTION)
In the event of an emergency while operating, strike
the power kill button at rear of control console to halt
machine. Turn button clockwise to reset (Figure 24).
FIG. 24
OPERATING FaSTSCRUB SYSTEM (OPTION)
How the FaSTSystem operates (Foam Scrubbing
Technology). The FaSTPAK concentrate agent is
injected into the system with a mixture of a small
amount water and compressed air. This mixture creates
a large volume of expanded wet foam. The expanded
foam mixture is then dispersed onto the floor while two
scrubbing discs go to work. By the time the squeegee
picks up the mixture, the patented foaming agent has
collapsed and recovered into the recovery tank. By
performing the FaSTsystem application, you can
increase your productivity rate by 30% by reducing your
dump/fill cycle. You will also reduce your chemical usage
and storage space. One FaSTPAK of concentrated
agent allows you to scrub up to 1 million sq. ft.
1. Make sure that the FaSTPAK 365 Floor
Cleaning Concentrate carton is properly installed
(See INSTALLING FaSTPAK AGENT).
2. Make sure that the solution tank is filled with clear
cool water only. DO NOT add conventional
cleaning agents in solution tank. Conventional
cleaning agents/restorers in the solution tank will
result in premature FaSTsystem failure.

OPERATION
14 Tennant5400 (05–03)
3. Press the FaSTsystem switch to the on ( I )
position (Figure 25).
NOTE: To scrub with clear water only, simply press
the FaST system switch to the off (O) position. This
will allow you to operate the machine in a rinsing
application.
FIG. 25
4. Make sure that the main solution switch is in the
ON position.
NOTE: The water flow rate from the solution tank is
automatically regulated by the operation of the FaST
system. The solution flow rate can not be adjusted by
the Solution Control Adjustment Knob during the
FaSTScrub mode.
5. Follow the standard MACHINE OPERATION
instructions to begin scrubbing.
General Information: The FaSTand ES options
can not be equipped on the same machine.
OPERATING ES(OPTION)
ESoption extends scrubbing time by reusing
recovered water. The recovered water is filtered and
recycled back into the solution tank for reuse.
NOTE: The ESOption is not available for FaST
models.
1. Pour between 19 and 38 liters (5 and 10 gal) of
hot water, 60°C (140°F) maximum, into recovery
tank when filling solution tank (Figure 26).
WARNING: Do Not Use Flammable Liquids Or
Operate Machine In Or Near Flammable Liquids,
Vapors Or Combustible Dusts.
FIG. 26
2. Turn ESswitch on when ready to begin
scrubbing. The ESindicator light will
automatically turn on and off when recovery tank
reaches its recycling point (Figure 27).
FIG. 27
NOTE: If ESindicator light remains on, drain tanks
and clean ESfilter located in recovery tank.
3. Follow the standard MACHINE OPERATION
instructions to begin scrubbing.
WHILE OPERATING MACHINE
FOR SAFETY: When using machine, go slow on
inclines and slippery surfaces.
1. Overlap each path by 50 mm (2 in).
2. Keep machine moving to prevent damage to finish
or floor.
3. Observe brush pressure meter while operating.
Meter should read within the green zone, press
brush pressure switch to adjust.
ATTENTION: Do not operate machine with pad
pressure meter in red zone, circuit breakers will
trip and floor damage may occur.
4. Periodically observe recovery tank for excessive
foam. Pour a recommended foam control solution
into recovery tank if excessive foam appears.

OPERATION
Tennant5400 (05–03) 15
ATTENTION: Do not allow foam or water to enter
float shut-off screen, vacuum motor damage will
result; not covered by warranty. Foam will not
activate float shut-off screen.
5. For heavily soiled areas, double scrubbing is
recommended. First scrub area with squeegee up,
let solution set for 3–5 minutes, then scrub area a
second time with squeegee down.
6. Disc Scrub Head: Change or turn pads over when
worn.
7. Cylindrical Brush Scrub Head: If you experience
excessive brush vibration or poor scrubbing
performance, see ADJUSTING SCRUB BRUSH.
8. If squeegee leaves streaks, raise and wipe blades
with a cloth. Pre-sweep area to prevent streaking.
9. Observe battery meter. When needle drops into
red zone, stop scrubbing and recharge batteries.
ATTENTION: Do not operate machine with battery
meter in red zone, battery damage will result.
WARNING: Do Not Pick Up Flammable
Materials Or Reactive Metals.
OPERATING OFF-AISLE WAND (OPTION)
The off–aisle wand allows you to scrub areas that the
machine is unable to reach.
NOTE: The off–aisle wand Option is not available for
FaSTmodels.
1. Turn key to the off position and set parking brake,
if equipped.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
2. Connect solution hose to quick disconnect coupler
located behind right drive wheel (Figure 28).
FIG. 28
3. Disconnect squeegee vacuum hose from
squeegee assembly and connect wand’s vacuum
hose using hose adapter (Figure 29).
FIG. 29
4. Connect hoses to wand.
5. Turn key and wand switch to the on position
(Figure 30).
FIG. 30
6. Lower squeegee lever knob to activate vacuum
motor (Figure 31).
FIG. 31

OPERATION
16 Tennant5400 (05–03)
7. Squeeze lever on wand and spray solution on
floor. Scrub floor with brush side of wand and
vacuum up solution with squeegee side of wand
(Figure 32).
WARNING: Do Not Pick Up Flammable
Materials Or Reactive Metals.
FIG. 32
CIRCUIT BREAKERS / FUSE
The 5400 is equipped with five resettable circuit
breakers and one fuse to protect machine from
damage. If a circuit breaker should trip during
operation, determine cause, allow motor to cool and
then manually reset breaker. If replacing the fuse,
never substitute a higher fuse than specified. Circuit
breaker panel is located at rear of machine
(Figure 33).
–10A Main Circuit Breaker
–15A Drive Motor Circuit Breaker
–25A Vacuum Motor Circuit Breaker
–30A Brush Motor Circuit Breaker (2)
–2A Circuit Board Fuse
–10A FaSTSystem (option)
FIG. 33
HOUR METER
The hour meter records number of hours the machine
has been powered on. Use hour meter to determine
when to perform recommended maintenance
procedures and to record service history (Figure 34).
FIG. 34
DRAINING TANKS
Drain recovery tank:
–After each use.
–Between solution tank refills.
–When squeegee starts trailing water.
–When solution flow stops.
–When float shut-off screen, located inside
recovery tank, is activated.
–If optional ESindicator light remains on.
1. Drive machine to floor drain and turn key off.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
2. Remove drain hose from hose hook. Right side
hose drains recovery tank and left side hose
drains solution tank. Turn drain hose knob
counter-clockwise and pull plug out to drain
(Figure 35).
Recovery
Tank
Hose
Solution
Tank
Hose
FIG. 35

OPERATION
Tennant5400 (05–03) 17
3. Flush out recovery tank with clean water.
4. If you operated the ESoption, you must drain
solution tank also. Flush out solution tank with
clean water.
5. Replace drain hose plug(s) securely.
6. When finished scrubbing, perform the Daily
Maintenance procedures (See MACHINE
MAINTENANCE).
ADJUSTING SCRUB HEAD
DISC BRUSH SCRUB HEAD
NOTE: Before adjusting scrub head, check tire
pressure and fill solution tank.
1. With pads/brushes installed, lower scrub head to
floor and apply maximum pad pressure.
2. Turn off machine and remove key.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
3. From center front and back of scrub head,
measure distance from top edge of scrub head to
floor (Figure 36).
FIG. 36
4. If scrub head is not level, loosen lock nut and turn
scrub head leveling screw to level, 1 inch wrench
required. Tighten down lock nut once head is level
(Figure 37).
FIG. 37
CYLINDRICAL BRUSH SCRUB HEAD
To check for proper brush adjustment perform the
following steps:
NOTE: Before checking or adjusting scrub brush,
check tire pressure and fill solution tank.
1. Apply a powdered substance, such as chalk, on a
smooth, level floor.
2. With scrub head raised, position scrub head over
test area and set parking brake, if equipped.
3. Lower scrub head to floor with minimal down
pressure.
4. Turn solution switch to the off position.
5. Turn speed control knob to slowest setting and
slightly rotate control grips forward for 2 seconds
while holding machine in one spot.
NOTE: If a powdered substance is not available, let
brushes spin for 30 seconds in one spot.
6. Release parking brake, raise scrub head and
reverse machine from test area.
7. Observe brush pattern on floor. Both brushes
should leave an even, parallel pattern (Figure 38).
CORRECT BRUSH PATTERN
INCORRECT BRUSH PATTERNS
Even and
Parallel
Pattern
Tapered
Pattern Uneven
Pattern
FIG. 38

OPERATION
18 Tennant5400 (05–03)
8. If brush pattern represents one of the incorrect
patterns, adjustment is required.
To adjust cylindrical brush with uneven pattern:
1. Lower scrub head to floor and apply maximum
down pressure.
2. Turn off machine and remove key.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
3. Measure distance from bottom edge of scrub head
to floor at all four corners (Figure 39).
FIG. 39
4. If scrub head is not level, loosen lock nut and turn
scrub head leveling screw clockwise to lower rear
brush width or counter–clockwise to lower front
brush width, 1 inch wrench required (Figure 40).
FIG. 40
5. Recheck brush pattern, readjust if necessary.
To adjust cylindrical brush with tapered pattern:
1. Raise scrub head off floor and remove key.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
2. Remove idler plate that has the tapered brush
pattern. To remove idler plate from scrub head,
push spring mount tab downward, then pull bottom
of plate down and outward (Figure 41).
FIG. 41
3. Pull idler plate off end of brush.
4. Hold brush plug shaft with .375 inch wrench and
loosen Allen head screw, 6 mm Allen wrench
required (Figure 42).
FIG. 42
5. When adjusting front brush, turn shaft clockwise to
lower brush end. If adjusting rear brush, turn shaft
counter–clockwise to lower brush end. Retighten
Allen screw after adjusting (Figure 43).
FIG. 43
6. Replace idler plate and recheck brush pattern,
readjust if necessary.

OPERATION
Tennant5400 (07–02) 19
REMOVING BRUSHES/PADS
DISC SCRUB HEAD
Disc brushes should be replaced if bristles are worn to
a length of 10 mm (0.38 in) or less.
NOTE: Always replace brushes as a set. Never
replace just one.
1. Press bottom half of brush pressure switch until
scrub head is completely raised.
2. Turn key to the off position.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
3. Push brush release knobs downward to release
scrub brushes/pad drivers (Figure 44).
FIG. 44
4. Squeeze retaining clip on centerlock to remove
pad (Figure 45).
FIG. 45
CYLINDRICAL SCRUB HEAD
Cylindrical brushes should be replaced if bristles are
worn to a length of 10 mm (0.38 in) or less.
NOTE: Always replace brushes as a set. Never
replace just one.
1. Raise scrub head off floor and remove key.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
2. Remove idler plates from scrub head. To remove
idler, push spring mount tab downward, then pull
bottom of plate down and outward (Figure 46).
FIG. 46
3. Pull idler plate off end of brush. Remove brush
from scrub head.
4. Install idler plate on new brush and reinstall brush
(Figure 47).
NOTE: Make sure end of brush that has a double row
of bristles goes towards the idler plate.
DOUBLE ROW OF BRISTLES
FIG. 47
5. Repeat steps for other brush on opposite side of
scrub head.
6. Check brush adjustment (See ADJUSTING
SCRUB HEAD).

OPERATION
20 Tennant5400 (05–03)
CHANGING SCRUB HEADS
Two types of scrub heads are available for the 5400
model, disc brush and cylindrical brush. They are
easily interchangeable.
The disc brush scrub head is designed to scrub
smooth surfaces without debris, and the cylindrical
brush scrub head is designed to scrub tile and uneven
floors with small, light debris.
1. Lower scrub head to floor, do not apply any down
pressure.
2. Turn machine off, remove key and set parking
brake, if equipped.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off machine,
and set parking brake, if equipped.
3. Remove shroud located above scrub head. The
hex spacer is required for cylindrical brush scrub
head only (Figure 48).
CYLINDRICALBRUSH SCRUB HEAD
DISC SCRUB HEAD
HEX SPACER
FIG. 48
4. Disconnect solution hose from scrub head
(Figure 49).
5. Unplug brush motor wire harness connectors
(Figure 49).
SolutionHose
Wire
Harness
Connector
(2) Lift Arm
Clevis Pins
Lift Arm
Roller Bracket
Clevis Pin
Roller Bracket
Disc Scrub Head
Cylindrical Brush
Scrub Head
Roller Bracket
Socket Screw
(2) Lift
Arm Clevis
Pins
Wire Harness
Connector
Solution Hose
Note: Loosen this
bracket if scrub head
does not release from
machine.
Align scrub
head sym-
bol with
notch
Switch
Box –Cylindrical
–Disc
Loosen
screwsDETAIL
Scrub
Head
Symbol
Switch
Box
Spring
Bracket
FIG. 49