Tennant M20 User manual

*331410*
www.tennantco.com
Scrubber--Sweeper
Operator Manual
331410
Rev. 06 (5-2009)
North America / International
The Safe Scrubbing AlternativeR
M20
(Diesel)
Hygenic Fully Cleanable Tanks
FloorSmart
t Integrated Cleaning System
ES Extended Scrub System
R
R

This manual is furnished with each new model. It provides necessary operation and maintenance instructions.
Read this manual completely and understand the machine before operating or servicing it.
This machine will provide excellent service. However, the best results will be obtained at minimum costs if:
SThe machine is operated with reasonable care.
SThe machine is maintained regularly - per the machine maintenance instructions provided.
SThe machine is maintained with manufacturer supplied or equivalent parts.
PROTECT THE ENVIRONMENT
Please dispose of packaging materials,
old machine components such as
batteries, hazardous fluids including
antifreeze and oil, in an
environmentally safe way according to
local waste disposal regulations.
Always remember to recycle.
MACHINE DATA
Please fill out at time of installation for future reference.
Model No. --
Serial No. --
Machine Options --
Sales Rep. --
Sales Rep. phone no. --
Customer Number --
Installation Date --
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: [phone] or (763) 513--2850
www.tennantco.com
CALIFORNIA PROPOSITION 65 WARNING:
Engine exhaust from this product contains chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
Thermo--Sentry, Touch--N--Go, 1--STEP, Clean--Wedge, Variable Drain Valve, EasyOpen, Grip--n--Go, MaxPro, Dura--Track, SmartRelease,
InstantAccess, Duramer, FaST--PAK, ErgoSpace and Lower Total Cost of Ownership are US registered and unregistered trademarks of Tennant Company.
Specifications and parts are subject to change without notice.
Original Instructions, copyright E2006 -- 2009 TENNANT Company, Printed in U.S.A.

CONTENTS
3
M20 Diesel 331410 (5--09)
CONTENTS
Page
SAFETY PRECAUTIONS 3.................
OPERATION 7............................
MACHINE COMPONENTS 7.............
CONTROLS AND INSTRUMENTS 8......
TOUCH PANEL 9.......................
SYMBOL DEFINITIONS 10................
OPERATION OF CONTROLS 11..........
CHARGING SYSTEM INDICATOR 11...
ENGINE OIL PRESSURE INDICATOR 11
CHECK ENGINE INDICATOR
(S/N 000000--002885) 11............
GLOW PLUG LIGHT (PREHEAT) 11....
PARKING BRAKE INDICATOR
(OPTION) 11......................
SETTING THE ENGINE SPEED 12.....
SIDE BRUSH (OPTION) 12............
FUEL INDICATOR 12..................
HOUR METER 13.....................
SUPERVISOR CONTROL BUTTONS 13.
OPERATING LIGHTS 13...............
HAZARD LIGHT (OPTION) 13..........
OPERATOR SEAT 14..................
SEAT BELTS 14......................
STEERING COLUMN TILT KNOB 14....
BRAKE PEDAL 15....................
PARKING BRAKE PEDAL 15...........
DIRECTIONAL PEDAL 15..............
SQUEEGEE PROTECTORS
(OPTION) 15......................
HOW THE MACHINE WORKS 16..........
BRUSH INFORMATION 16................
WHILE OPERATING THE MACHINE 17....
PRE--OPERATION CHECKLIST 18.........
STARTING THE MACHINE 19.............
TURNING OFF THE MACHINE 19.........
FILLING THE SOLUTION TANK 20........
FOAM SCRUBBING (FaST MODE) 20...
CONVENTIONAL SCRUBBING MODE 20
ES (EXTENDED SCRUB) MODE
WITH AUTO--FILL 21...............
ES (EXTENDED SCRUB) MODE --
MANUALLY FILLING TANKS 21......
SETTING SCRUB MODES 22.............
SETTING FaST MODE 22..............
SETTING ES (EXTENDED SCRUB)
MODE 22.........................
SETTING BRUSH PRESSURE 22.......
SETTING SOLUTION FLOW 23........
CONVENTIONAL AND FaST
SOLUTION FLOW 23............
ES (EXTENDED SCRUB)
SOLUTION FLOW 23............
SCRUBBING 24.........................
DOUBLE SCRUBBING 25.................
WATER PICKUP MODE
(NO SCRUBBING) 26..................
Page
SWEEPING 27..........................
EMPTYING THE HOPPER 28.............
ENGAGING HOPPER SUPPORT PIN 29...
DISENGAGING HOPPER SUPPORT PIN 29
REMOVING THE HOPPER DUST FILTER 30
CLEANING THE HOPPER AND
DEBRIS SCREEN 31..................
DRAINING AND CLEANING THE
RECOVERY TANK 33.................
DRAINING THE RECOVERY TANK
WITH THE DRAIN HOSE 33.........
DRAINING THE RECOVERY TANK
WITH THE DRAIN PLUG 34.........
DRAINING AND CLEANING THE
SOLUTION TANK 36..................
FAULT INDICATOR(S) 38.................
CONDITIONS / WARNINGS 39............
OPTIONS 40............................
SPRAY NOZZLE (OPTION) 40..........
VACUUM WAND (OPTION) 41..........
MACHINE TROUBLESHOOTING 42.......
MAINTENANCE 44.........................
MAINTENANCE CHART 45...............
LUBRICATION 47........................
ENGINE OIL 47.......................
SQUEEGEE CASTER BEARINGS 47...
FRONT WHEEL SUPPORT BEARING 47
STEERING CYLINDER BEARING 47....
HOPPER LIFT ARM PIVOTS 48........
HOPPER DOOR PIVOTS 48...........
LIFT ARM LATCH 48..................
TORQUE TUBES 48...................
HYDRAULICS 49........................
HYDRAULIC FLUID 49................
HYDRAULIC HOSES 50...............
ENGINE 50.............................
COOLING SYSTEM 50................
AIR FILTER 51........................
FUEL FILTER 52......................
FUEL LINES 52.......................
PRIMING THE FUEL SYSTEM 52.......
ENGINE BELT 52.....................
BATTERY 53............................
FUSES AND RELAYS 53.................
RELAY PANEL FUSES AND RELAYS 53.
ENGINE HARNESS FUSES
AND RELAYS 54...................
CLEANING THE HOPPER
DUST FILTER 55......................
THERMO--SENTRY 55...................
MAIN BRUSHES 55......................
REPLACING OR ROTATING THE
MAIN BRUSHES 55................
CHECKING THE MAIN BRUSH
PATTERN 57......................
ADJUSTING THE MAIN BRUSH
TAPER 58.........................

CONTENTS
M20 Diesel 331410 (5--09)
4
Page
ADJUSTING THE MAIN BRUSH
WIDTH 58.........................
SIDE BRUSH (OPTION) 59...............
REPLACING THE SIDE BRUSH 59.....
FaST SYSTEM 60.......................
REPLACING THE FaST--PAK
CARTON 60.......................
CLEANING THE FaST SUPPLY
HOSE CONNECTOR 61............
CLEANING THE FaST SYSTEM
FILTER SCREEN 61................
CLEANING THE FaST SYSTEM
AIR PUMP FILTER
(S/N 000000 -- 002532) 61...........
REPLACING THE FaST SYSTEM
FILTERS (S/N 002533-- ) 61....
SQUEEGEE BLADES 62.................
REPLACING (OR ROTATING) THE
REAR SQUEEGEE BLADES 62......
REPLACING OR ROTATING THE SIDE
SQUEEGEE BLADES 64............
REPLACING THE SIDE BRUSH
SQUEEGEE BLADE (OPTION) 65...
LEVELING THE REAR SQUEEGEE 66..
ADJUSTING THE REAR SQUEEGEE
BLADE DEFLECTION 67............
SKIRTS AND SEALS 68..................
SCRUB HEAD SKIRT 68...............
RECOVERY TANK SEAL 68............
SOLUTION TANK SEALS 68...........
BRAKES AND TIRES 69..................
BRAKES 69..........................
PARKING BRAKE 69..................
TIRES 69............................
FRONT WHEEL 69....................
PROPELLING MOTOR 69................
PUSHING, TOWING, AND
TRANSPORTING THE MACHINE 70....
PUSHING OR TOWING THE
MACHINE 70......................
TRANSPORTING THE MACHINE 70....
MACHINE JACKING 72...................
STORAGE INFORMATION 72.............
FREEZE PROTECTION 72................
SPECIFICATIONS 73.......................
GENERAL MACHINE
DIMENSIONS/CAPACITIES 73............
GENERAL MACHINE PERFORMANCE 73..
HYDRAULIC SYSTEM 73.................
STEERING 73...........................
POWER TYPE 74........................
TIRES 74...............................
FaST SYSTEM 74.......................
MACHINE DIMENSIONS 75...............
INDEX 77..................................

SAFETY PRECAUTIONS
3
M20 Diesel 331410 (4--08)
SAFETY PRECAUTIONS
The following precautions are used throughout
this manual as indicated in their description:
WARNING: To warn of hazards or
unsafe practices that could result in
severe personal injury or death.
CAUTION: To warn of unsafe practices
that could result in minor or moderate
personal injury.
FOR SAFETY: To identify actions that must be
followed for safe operation of equipment.
Do not use the machine other than described in
this Operator Manual. The machine is not
designed for use on public roads.
The following information signals potentially
dangerous conditions to the operator or
equipment:
WARNING: Flammable materials can
cause an explosion or fire. Do not use
flammable materials in tank.
WARNING: Flammable materials or
reactive metals can cause an explosion
or fire. Do not pickup.
WARNING: Moving belt and fan. Keep
away.
WARNING: Engine emits toxic gases.
Serious injury or death can result.
Provide adequate ventilation.
WARNING: Raised hopper may fall.
Engage hopper support pin.
WARNING: Lift arm pinch point. Stay
clear of hopper lift arms.
WARNING: Burn hazard. Hot surface. Do
NOT touch.
CALIFORNIA PROPOSITION 65
WARNING: Engine exhaust from this
product contains chemicals known to
the State of California to cause cancer,
birth defects, or other reproductive
harm.
FOR SAFETY:
1. Do not operate machine:
-- Unless trained and authorized.
-- Unless operator manual is read and
understood.
-- If it is not in proper operating
condition.
-- In flammable or explosive areas.
-- In areas with possible falling objects
unless equipped with overhead guard.
2. Before starting machine:
-- Check for fuel, oil, and liquid leaks.
-- Keep sparks and open flame away
from refueling area.
-- Make sure all safety devices are in
place and operate properly.
-- Check brakes and steering for proper
operation.
3. When starting machine:
-- Keep foot on brake and directional
pedal in neutral.
4. When using machine:
-- Do not pick up burning or smoking
debris, such as cigarettes, matches, or
hot ashes.
-- Use brakes to stop machine.
-- Go slow on inclines and slippery
surfaces.
-- Use care when reversing machine.
-- Move machine with care when hopper
is raised.
-- Make sure adequate clearance is
available before raising hopper.
-- Do not carry passengers on machine.
-- Always follow safety and traffic rules.
-- Report machine damage or faulty
operation immediately.
-- Follow mixing and handling
instructions on chemical containers.

SAFETY PRECAUTIONS
M20 Diesel 331410 (9--06)
4
5. Before leaving or servicing machine:
-- Stop on level surface.
-- Set parking brake.
-- Turn off machine and remove key.
6. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves.
-- Block machine tires before jacking
machine up.
-- Jack machine up at designated
locations only. Support machine with
jack stands.
-- Use hoist or jack that will support the
weight of the machine.
-- Wear eye and ear protection when
using pressurized air or water.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Avoid contact with hot engine coolant.
-- Do not remove cap from radiator when
engine is hot.
-- Allow engine to cool.
-- Keep flames and sparks away from
fuel system service area. Keep area
well ventilated.
-- Use cardboard to locate leaking
hydraulic fluid under pressure.
-- Use Tennant supplied or approved
replacement parts.
7. When loading/unloading machine
onto/off truck or trailer:
-- Turn off machine.
-- Use truck or trailer that will support
the weight of the machine.
-- Use winch. Do not drive the machine
onto/off the truck or trailer unless the
load height is 380 mm (15 in) or less
from the ground.
-- Set parking brake after machine is
loaded.
-- Block machine tires.
-- Tie machine down to truck or trailer.

SAFETY PRECAUTIONS
5
M20 Diesel 331410 (9--06)
The following safety labels are mounted on the
machine in the locations indicated. If these or any
labels become damaged or illegible, install a new
label in its place.
EMISSIONS LABEL -- Located on the
side of the operator compartment.
FOR SAFETY LABEL --
Located on the side of the
operator compartment.
FLAMMABLE SPILLS LABEL --
Located on the side of the
operator compartment.
HOPPER LIFT ARMS LABEL --
Located on both hopper lift arms.

SAFETY PRECAUTIONS
M20 Diesel 331410 (3--07)
6
FAN AND BELT LABEL --
Located on engine
compartment panel.
FLAMMABLE MATERIALS
LABEL -- Located next to
the solution tank covers
and on the detergent tank.
HOT SURFACE LABEL -- Located on
the side of the bumper, on the
exhaust shield, and on the hydraulic
reservoir.
RAISED HOPPER LABEL -- Located
on both hopper lift arms.

OPERATION
7
M20 Diesel 331410 (9--06)
OPERATION
MACHINE COMPONENTS
C
F
I
J
B
A
E
H
N
O
P
D
K
Q
R
T
G
L
M
S
A. Instrument panel
B. Front shroud
C. Headlights
D. Side brush (option)
E. Side squeegee
F. Scrub head access door
G. Fuel tank
H. Seat shroud
I. FaST carton or ES detergent tank
compartment (option)
J. Solution tank cover
K. Operator seat
L. Audible backup alarm (option)
M. Taillights
N. Recovery tank drain hose
O. Recovery tank cover
P. Solution tank drain hose
Q. Hopper
R. Rear squeegee
S. Hopper safety pin
T. Engine cover

OPERATION
8M20 Diesel 331410 (9--06)
CONTROLS AND INSTRUMENTS
B
I
H
FE
LM
G
KA
C
D
J
A. Steering wheel
B. Ignition switch
C. Horn button
D. Steering column tilt knob
E. Directional pedal
F. Brake pedal
G. Parking brake pedal
H. Hopper door open / close switch
I. Hopper raise / lower switch
J. Touch panel
K. Operating / Hazard Lights switch
L. Spray nozzle switch (option)
M. Engine indicator lights

OPERATION
9
M20 Diesel 331410 (9--06)
TOUCH PANEL
H
C
G
A
N
JE
B
D
F
I
K
LM
O
P
A. Fault indicator light
B. Hour meter / fuel indicator / fault code
indicator
C. 1--STEP sweep button
D. 1--STEP scrub button
E. Scrub vacuum fan / squeegee button
F. ES (Extended Scrub) button (option)
G. FaST button (option)
H. Solution increase button (+)
I. Solution decrease button (--)
J. Brush pressure increase button (+)
K. Brush pressure decrease button (--)
L. Filter shaker button
M. Sweep vacuum fan button
N. Side brush button (option)
O. Engine speed button
P. Supervisor control buttons

OPERATION
10 M20 Diesel 331410 (5--09)
SYMBOL DEFINITIONS
These symbols are usd on the machine to identify
controls, displays, and features.
Hazard light Engine speed
Operating lights Side brush
Spray nozzle Main brush pressure
Hopper door open Solution flow
Hopper door close Increase
Hopper raise Decrease
Hopper lower Charging system
Fault indicator Engine oil pressure (000000--002885)
Filter shaker Engine oil pressure (002886-- )
Sweep vac fan Glow plugs (preheat -- diesel only)
Scrub vac fan/squeegee Horn
1--STEP sweep Jack point
1--STEP scrub Diesel fuel only
ES (extended scrub) Parking Brake (002886-- )
FaST (foam scrubbing) Check engine (000000--002885)

OPERATION
11
M20 Diesel 331410 (5--09)
OPERATION OF CONTROLS
CHARGING SYSTEM INDICATOR
The Charging system indicator comes on when
the alternator is not operating within the normal
range. If this indicator comes on, stop the
machine immediately and correct the problem.
ENGINE OIL PRESSURE INDICATOR
The Engine oil pressure indicator comes on when
the engine oil pressure falls below the normal
operating pressure. If this indicator comes on,
stop the machine immediately and correct the
problem.
CHECK ENGINE INDICATOR
(S/N 000000--002885)
The Check engine indicator comes on when the
engine control system detects a fault during
machine operation.
If this indicator comes on, contact a Tennant
service representative.
GLOW PLUG LIGHT (PREHEAT)
The Glow plug light comes on when the igntition
switch is turned counterclockwise to the preheat
position. The light will stay on when the key is
held in this position.
PARKING BRAKE INDICATOR (OPTION)
The parking brake indicator comes on when the
parking brake is engaged.

OPERATION
12 M20 Diesel 331410 (9--06)
SETTING THE ENGINE SPEED
The engine speed is controlled automatically
when either the 1--STEP Scrub button or 1--STEP
Sweep button is pressed. When not sweeping or
scrubbing, press the Engine Speed button to
increase the engine RPM for increased travel
speed. Press the Engine Speed button again to
reduce the engine RPM. The two lights above the
button indicate engine speed setting. When one
light is lit the engine is in the low setting. When
two lights are lit the engine is in the high setting.
SIDE BRUSH (OPTION)
The side brush allows users to sweep or scrub
difficult to reach corners and areas near walls.
The side brush also widens the scrubbing/
sweeping path.
With the 1--STEP Scrub button or 1--STEP Sweep
button activated, press the Side brush button to
lower and start the side brush. The light next to
the button will come on. When finished using the
side brush, press the button again to raise and
stop the side brush. The light next to the button
will turn off. The machine will default to the last
setting used when it is powered on or off.
FUEL INDICATOR
The Fuel indicator displays the amount of fuel left
in the tank. The fault indicator will flash and a low
fuel message will appear when the tank is near
empty.

OPERATION
13
M20 Diesel 331410 (9--06)
HOUR METER
The Hour meter records the hours the machine
was operated. Use this information to determine
machine service intervals.
SUPERVISOR CONTROL BUTTONS
The Supervisor Control buttons are for accessing
the configuration and diagnostic modes. Only
properly trained service personnel and TENNANT
representatives should access these modes.
OPERATING LIGHTS
Push the top of the Operating / hazard light switch
to turn on the headlights and taillights. Return the
light switch to the center position to turn off the
lights.
HAZARD LIGHT (OPTION)
Press the bottom of the Operating / hazard light
switch to turn on the hazard light, headlights, and
taillights. Return the light switch to the center
position to turn off the lights.

OPERATION
14 M20 Diesel 331410 (9--06)
OPERATOR SEAT
The operator seat has three adjustments:
backrest angle, operator weight, and front to
back.
The backrest adjustment knob adjusts the angle
of the backrest.
Increase angle: Turn the angle adjustment knob
counterclockwise.
Decrease angle: Turn the angle adjustment knob
clockwise.
The weight adjustment knob controls the firmness
of the operator seat.
Increase firmness: Turn the weight adjustment
knob clockwise.
Decrease firmness: Turn the weight adjustment
knob counterclockwise.
Use the gauge next to the weight adjustment knob
to help determine seat firmness for the operator.
The front--to--back adjustment lever adjusts the
seat position.
Adjust: Pull the lever out and slide the seat to the
desired position. Release the lever to lock the
seat into place.
SEAT BELTS
Always fasten and adjust the seat belts before
operating the machine.
STEERING COLUMN TILT KNOB
1. Pull the Steering column tilt knob and adjust
the steering column to the desired height.
2. Release the Steering column tilt handle.

OPERATION
15
M20 Diesel 331410 (9--06)
BRAKE PEDAL
Press the Brake pedal to stop the machine.
PARKING BRAKE PEDAL
Press the Brake pedal down as far as possible
and use toe to lock the Parking brake pedal into
place. Press the Brake pedal to release the
parking brake. The Parking brake pedal will return
to the unlocked position.
DIRECTIONAL PEDAL
Press the top of the Directional pedal to move
forward and the bottom of the pedal to move
backward. The backup lights will come on when
the machine is in reverse. The pedal returns to
the neutral position when it is released.
NOTE: An audible alarm will sound and the
backup light will flash when backing the machine if
equipped with the optional backup alarm.
SQUEEGEE PROTECTORS (OPTION)
The rear and side squeegee protectors help
protect the rear squeegee from being damaged.
To engage the rear squeegee protector, pull the
pin, lower the protector bar, and reinsert the pin.

OPERATION
16 M20 Diesel 331410 (9--06)
HOW THE MACHINE WORKS
This machine can effectively scrub or sweep dirty
floors. The 1--STEP Scrub button and 1--STEP
Sweep button make it possible to immediately
begin scrubbing or sweeping.
The 1--STEP Sweep button operates all the dry
sweeping functions (without scrubbing). The
1--STEP Scrub button operates all the scrubbing
functions. (The machine also sweeps while
scrubbing).
When in the conventional Scrub mode, a water
and detergent mixture is used to scrub the floor.
When in the optional FaST (Foam scrubbing)
mode, the FaST scrubbing system mixes the
FaST--PAK concentrate with a small amount of
water, creating a large volume of expanded wet
foam. The FaST system can be used with all
double scrubbing and heavy duty scrubbing
applications.
When in the optional ES (Extended Scrub) mode,
the dirty solution in the recovery tank is filtered
through the ES system and returned to the
solution tank for reuse. Detergent is then injected
into the returned solution to revitalize the cleaning
capability of the solution.
BRUSH INFORMATION
For best results, use the correct brush type for the
cleaning application. Listed below are the brushes
and the applications for which each is best suited.
NOTE:The amount and type of soilage play an
important role in determining the type of brushes
to use. Contact a Tennant representative for
specific recommendations.
PolyPro brush -- Heavy duty polypropylene
bristles provide a more aggressive cleaning
performance and can more easily lift compacted
dirt, debris, and sand while offering excellent
scrubbing performance.
Polypropylene brush -- General purpose
polypropylene bristles lift lightly compacted dirt
without scuffing high-gloss coated floors.
Polyester brush -- Softer general purpose
polyester bristles lift light debris while sweeping
and gently clean while scrubbing. Perfect for
sensitive floor surfaces. Polyester does not
absorb water so it is preferred over Nylon in wet
applications.
Super AB brush -- Nylon fiber impregnated with
abrasive grit to remove stains and compacted dirt.
Aggressive action on any surface. Performs well
on buildup, grease, or tire marks.

OPERATION
17
M20 Diesel 331410 (9--06)
WHILE OPERATING THE MACHINE
Pick up oversized debris before scrubbing or
sweeping. Pick up wire, string, twine, large pieces
of wood, or any other debris that could become
wrapped around or tangled in the brushes.
Drive as straight a path as possible. Avoid
bumping into posts or scraping the sides of the
machine. Overlap the scrub/sweep 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.
Adjust the machine speed, brush pressure, and
solution flow as required when scrubbing. Use the
lowest brush pressure and solution flow settings
for best performance. If the machine is equipped
with the FaST system, use the FaST system for
the best scrubbing results.
Keep the machine moving to prevent damaging
floor finishes.
If poor cleaning performance is observed, stop
cleaning and refer to MACHINE
TROUBLESHOOTING in this manual.
Perform the Daily Maintenance Procedures after
each use (see MACHINE MAINTENANCE in this
manual).
Drive the machine slowly on inclines. Use the
brake pedal to control machine speed on
descending inclines. Scrub with the machine up
inclines rather than down inclines.
FOR SAFETY: When using machine, go slow
on inclines and slippery surfaces.
The maximum rated incline for scrubbing with the
machine is 8_or 14%. The maximum rated incline
during transport of the machine is 10_or 18%.

OPERATION
18 M20 Diesel 331410 (9--06)
PRE--OPERATION CHECKLIST
-Check the hydraulic fluid level.
-Check the fuel level.
-Check the condition of the main brushes.
Remove string, banding, plastic wrap, or other
debris wrapped around the brushes.
-Check the main brush compartment right
skirts, seals, and squeegee for damage and
wear.
-Side Brush Option: Check the condition of the
brush. Remove string, banding, plastic wrap,
or other debris wrapped around the brush.
-Side Brush Option: Check the condition of the
side brush skirt or squeegee.
-Check the radiator and hydraulic cooler fins
for debris.
-Check the engine coolant level.
-Check the engine oil level.
-Check the main brush compartment left skirts,
seals, and squeegee for damage and wear.
-Check the left solution tank cover seal for
damage and wear.
-Check the recovery tank cover seal for
damage and wear.
-Clean the vacuum fan debris filter.
-Drain and clean the recovery tank.
-ES Option: Drain and clean the solution tank,
float sensor, and ES filter.
-Check the right solution tank cover seal for
damage and wear.
-Check the condition of the hopper dust filter
and seals.
-Clean the hopper and the debris screen.
-Check the squeegee hose for debris or
blockage.
-Check the squeegees for damage, wear, and
deflection adjustment.
-FaST Scrubbing: Check the FaST--PAK
concentrate agent level. Replace carton as
needed. See the INSTALLING THE
FaST--PAK CARTON section of the manual.
-FaST Scrubbing: Ensure all conventional
cleaning agents are drained and rinsed from
the solution tank.
-FaST Scrubbing: Ensure the solution tank is
filled with clear cool water only.
-Check the headlights, taillights, and safety
lights.
-Check the brakes and steering for proper
operation.
-Check the service records to determine
maintenance requirements.