(battery) rider scrubber english en operator...

T7

*331051*

331051Rev. 05 (09-2013)

Rider ScrubberEnglish EN

Operator Manual

To view, print or downloadthe latest manual, visit:

www.tennantco.com/manuals

(Battery)

INTRODUCTION

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:

� 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.

PROTECT THE ENVIRONMENTPlease dispose of packagingmaterials, used components such asbatteries and fluids in anenvironmentally safe way according tolocal waste disposal regulations.

Always remember to recycle.

Model No. −

Serial No. −

Installation Date −

Please fill out at time of installation for future reference.

MACHINE DATA

INTENDED USE

The T7 is an industrial/commercial rider machine designed to wet scrub both rough and smooth hardsurfaces (concrete, tile, stone, synthetic, etc). Typical applications include schools, hospitals / health carefacilities, office buildings, and retail centers. Do not use this machine on soil, grass, artificial turf, orcarpeted surfaces. This machine is intended for indoor use only. This machine is not intended for use onpublic roadways. Do not use this machine other than described in this Operator Manual.

Tennant N.V.Industrielaan 6 5405 ABP.O. Box 6 5400 AA Uden−The [email protected]

Specifications and parts are subject to change without notice.

Original instructions, copyright �2004−2009, 2013 Tennant Company, Printed in The Netherlands. All rights reserved.

DECLARATION OF CONFORMITY FOR MACHINERY (according to Annex II A of the Machinery Directive)

TENNANT N.V.

Industrielaan 6 5405 ABP.O. Box 6 5400 AAUden − The NetherlandsUden, 21−05−2010

EN

Herewith declares, on our own responsibility, that the machinery

T7− is in conformity with the provisions of the Machinery Directive (2006/42/EC), as amended and with national

implementing legislation− is in conformity with the provisions of the Electro Magnetic Compatibility Directive 2004/108/EC

and that− the following harmonized standards or parts of these standards have been applied: EN ISO 14121−1, EN

1037, EN 60335−1, EN 60204−1, EN ISO 13849−1, EN ISO 13849−2, EN 60529, EN ISO 4413, EN 349, EN55012, EN 61000−6−2, EN ISO 11201, EN ISO 4871, EN ISO 3744*, EN ISO 13059*, EN ISO 3450, EN60335−2−72.

− the following national standards or parts of these standards have been used:

CONTENTS

1T7 331051 (9−2013)

CONTENTS

PageSafety Precautions 2. . . . . . . . . . . . . . . . . . . . . . .Operation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Machine Components 5. . . . . . . . . . . . . . . . . .Controls And Instruments 6. . . . . . . . . . . . . . .How The Machine Works 7. . . . . . . . . . . . . . .Conventional Scrubbing 7. . . . . . . . . . . . . . . .Foam Scrubbing System (FaST Model) 7. . .ec−H2O Scrubbing (ec−H2O Model) 8. . . . .Brush Information 8. . . . . . . . . . . . . . . . . . . . .Machine Setup 9. . . . . . . . . . . . . . . . . . . . . . . .Attaching Squeegee Assembly 9. . . . . . . . . .Installing Brushes/Pads 9. . . . . . . . . . . . . . . .Installing The FaST−PAK (FaST Model) 9. .Filling The Solution Tank 10. . . . . . . . . . . . . . . .Machine Operation 10. . . . . . . . . . . . . . . . . . . .Pre−Operation Checklist 10. . . . . . . . . . . . . . . .Before Operating 10. . . . . . . . . . . . . . . . . . . . . .Setting Scrub Modes 11. . . . . . . . . . . . . . . . . . .Setting FaST Button 11. . . . . . . . . . . . . . . . . . .Setting ec−H2O Button 11. . . . . . . . . . . . . . . . .Setting Brush Pressure 11. . . . . . . . . . . . . . . . .Setting Solution Flow

(Conventional Scrubbing Only) 11. . . . . . .Economy Setting 12. . . . . . . . . . . . . . . . . . . . . .Scrubbing 12. . . . . . . . . . . . . . . . . . . . . . . . . . . .Double Scrubbing 14. . . . . . . . . . . . . . . . . . . . .Water Pickup Mode (No Scrubbing) 15. . . . . .While Operating The Machine 15. . . . . . . . . . .Emergency Stop Button 16. . . . . . . . . . . . . . . .Hour Meter 16. . . . . . . . . . . . . . . . . . . . . . . . . .ec−H2O System Indicator Light 16. . . . . . . . . .Solution Tank Empty Indicator 17. . . . . . . . . . .Recovery Tank Full Indicator 17. . . . . . . . . . . .Battery Discharge Indicator 17. . . . . . . . . . . . .Fault Indicator 18. . . . . . . . . . . . . . . . . . . . . . . . .Circuit Breakers 19. . . . . . . . . . . . . . . . . . . . . . .Fuses 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Hazard Light Switch (Option) 19. . . . . . . . . . . .Draining And Cleaning The Tanks 20. . . . . . . .Propel System Troubleshooting 22. . . . . . . . . .Machine Troubleshooting 23. . . . . . . . . . . . . . .

Maintenance 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Maintenance Chart 26. . . . . . . . . . . . . . . . . . . .Batteries 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Checking The Electrolyte Level

(Wet / Lead Acid Batteries Only) 27. . . . . .Checking Connections / Cleaning 27. . . . . . . .Gel Batteries 27. . . . . . . . . . . . . . . . . . . . . . . . . .Charging The Batteries With

Off−Board Charger 28. . . . . . . . . . . . . . . . . .Electric Motors 29. . . . . . . . . . . . . . . . . . . . . . . .Belts (Cylindrical Models) 29. . . . . . . . . . . . . . .

PageScrub Brushes And Pads 30. . . . . . . . . . . . . . .Disk Brushes 30. . . . . . . . . . . . . . . . . . . . . . . . .Replacing Disk Brushes Or Pad Driver 30. . .Replacing Disk Pads 31. . . . . . . . . . . . . . . . . . .Cylindrical Brushes 32. . . . . . . . . . . . . . . . . . . .Replacing Or Rotating Cylindrical Brushes 32Checking Cylindrical Brush Pattern 33. . . . . .Adjusting Cylindrical Brush Taper 33. . . . . . . .Adjusting Cylindrical Brush Width 34. . . . . . . .FaST System Maintenance (FaST Model) 35FaST Supply Hose Connector 35. . . . . . . . . . .ec−H2O System (ec−H2O Model) 36. . . . . . .ec−H2O Module Flush Procedure 36. . . . . . . .Squeegee Blades 36. . . . . . . . . . . . . . . . . . . . . .Replacing (Or Rotating) The Rear

Squeegee Blades 37. . . . . . . . . . . . . . . . . . .Replacing Side Squeegee Blades 38. . . . . . . .Adjusting The Squeegee Guide Roller 39. . . .Leveling The Rear Squeegee 39. . . . . . . . . . .Adjusting Rear Squeegee Blade

Deflection 39. . . . . . . . . . . . . . . . . . . . . . . . .Skirts And Seals 41. . . . . . . . . . . . . . . . . . . . . . .Disk Scrub Head Floor Skirt 41. . . . . . . . . . . . .Recovery Tank Seal 41. . . . . . . . . . . . . . . . . . .Solution Tank Seals 41. . . . . . . . . . . . . . . . . . . .Tires 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Pushing, Towing, And Transporting

The Machine 42. . . . . . . . . . . . . . . . . . . . . . .Pushing Or Towing The Machine 42. . . . . . . .Transporting The Machine 42. . . . . . . . . . . . . .Machine Jacking 43. . . . . . . . . . . . . . . . . . . . . .Storage Information 43. . . . . . . . . . . . . . . . . . . .Freeze Protection 43. . . . . . . . . . . . . . . . . . . . .ec−H2O Model: 43. . . . . . . . . . . . . . . . . . . . . . .Flushing Antifreeze From

ec−H2O Module: 44. . . . . . . . . . . . . . . . . . .Specifications 45. . . . . . . . . . . . . . . . . . . . . . . . . . . .

General Machine Dimensions/Capacities 45.General Machine Performance 45. . . . . . . . . .Power Type 46. . . . . . . . . . . . . . . . . . . . . . . . . . .Tires 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FaST System (Option) 46. . . . . . . . . . . . . . . . .ec−H2O System (Option) 46. . . . . . . . . . . . . . .Machine Dimensions 47. . . . . . . . . . . . . . . . . . .

SAFETY PRECAUTIONS

T7 331051 (9−2013)2

IMPORTANT SAFETY INSTRUCTIONS − SAVE THESE INSTRUCTIONS

The following symbols are used throughout thismanual as indicated in the descriptions:

WARNING: To warn of hazards or unsafepractices that could result in severepersonal injury or death.

FOR SAFETY: To identify actions thatmust be followed for safe operation ofequipment.

The following information signals potentiallydangerous conditions to the operator. Know whenthese conditions can exist. Locate all safetydevices on the machine. Report machine damageor faulty operation immediately.

WARNING: Batteries emit hydrogen gas.Explosion or fire can result. Keepsparks and open flame away. Keepcovers open when charging.

WARNING: Flammable materials cancause an explosion or fire. Do not useflammable materials in tank(s).

WARNING: Flammable materials orreactive metals can cause an explosionor fire. Do not pick up.

FOR SAFETY:

1. Do not operate machine:− Unless trained and authorized.− Unless operator manual is read and

understood.− Under the influence of alcohol or

drugs− While using a cell phone or other

types of electronic devices− Unless mentally and physically

capable of following machineinstructions.

− With brake disabled.− If it is not in proper operating

condition.− In areas where flammable

vapors/liquids or combustible dustsare present.

− In areas that are too dark to safely seethe controls or operate the machineunless operating / headlights areturned on.

− In areas with possible falling objectsunless equipped with overhead guard.

2. Before starting machine:− Check machine for fluid leaks.− Make sure all safety devices are in

place and operate properly.− Check brakes and steering for proper

operation.− Adjust seat and fasten seat belt (if

equipped).

3. When using machine:− Use only as described in this manual.− Use brakes to stop machine.− Go slowly on inclines and slippery

surfaces.− Reduce speed when turning.− Keep all parts of body inside operator

station while machine is moving.− Use care when reversing machine.− Never allow children to play on or

around machine.− Do not carry passengers on machine.− Always follow safety and traffic rules.− Report machine damage or faulty

operation immediately.− Follow mixing, handling and disposal

instructions on chemical containers.− Follow site safety guidelines

concerning wet floors.

SAFETY PRECAUTIONS

3T7 331051 (9−2013)

4. Before leaving or servicing machine:− Stop on level surface.− Turn off machine and remove key.

5. When servicing machine:− All work must be done with sufficient

lighting and visibility.− Avoid moving parts. Do not wear loose

clothing, jewelry and secure long hair.− Block machine tires before jacking

machine up.− Jack machine up at designated

locations only. Support machine withjack stands.

− Use hoist or jack that will support theweight of the machine.

− Do not push or tow the machine oninclines with the brake disabled.

− Do not power spray or hose offmachine near electrical components.

− Disconnect battery connections beforeworking on machine.

− Avoid contact with battery acid.− Battery installation must be done by

trained personnel.− All repairs must be performed by a

trained service mechanic.− Do not modify the machine from its

original design.− Use Tennant supplied or approved

replacement parts.− Wear personal protective equipment

as needed and where recommended inthis manual.

For Safety: wear hearing protection.

For Safety: wear protective gloves.

For Safety: wear eye protection.

For Safety: wear protective dust mask.

6. When loading/unloading machineonto/off truck or trailer.− Drain tanks before loading machine.− Lower scrub head and squeegee

before tying down machine.− Turn off machine and remove key.− Use ramp, truck or trailer that will

support the weight of the machine andoperator.

− Use winch. Do not push the machineonto/off the truck or trailer unless theload height is 380 mm (15 in) or lessfrom the ground.

− Block machine tires.− Tie machine down to truck or trailer.

SAFETY PRECAUTIONS

T7 331051 (9−2013)4

The safety labels appear on the machine in thelocations indicated. If these or any label becomesdamaged or illegible, install a new label in itsplace.

Located on electrical panel underthe seat.

WARNING LABEL −Batteries emit hydrogengas. Explosion or fire canresult. Keep sparks andopen flame away. Keepcovers open when charging

Located on the seat panel.

FOR SAFETY LABEL −Read manual beforeoperating machine.

Located on the seatpanel.

WARNING LABEL − Flammablematerials can cause explosionor fire. Do not use flammablematerials in tank

Located on the seat panel.

WARNING LABEL − Flammablematerials or reactive metals can causeexplosion or fire. Do not pick up.

Located under the solution fill portand next to the foot pedals.

FOR SAFETY LABEL − Electricalcomponents, use groundingstrap before opening panel.

OPERATION

5T7 331051 (03−09)

OPERATION

MACHINE COMPONENTS

B D

C

H

I

J

G

E

L

M

N

F

K

O

S

R

Q

P

T

UA

A. Recovery tank drain hoseB. Recovery tank coverC. Recovery tankD. Operator seatE. BatteriesF. Rear squeegeeG. Side squeegeeH. Scrub headI. Steering wheelJ. Solution tankK. Tool Box or

optional FaST−PAK compartmentec−H2O System Module (option)

L. Solution tank fill cap

M. Solution tank drain hoseN. Squeegee hoseO. Front solution tank coverP. Hour meterQ. Circuit breakersR. 100 A FuseS. Battery charging connectorT. Propel pedalU. Brake pedal

OPERATION

6 T7 331051 (03−09)

CONTROLS AND INSTRUMENTS

F

E

G

H

I

L

M

N

O

P

A B C D

Q

ec−H2O Model

J

K

A. Solution tank empty indicatorB. Recovery tank full indicatorC. Battery charge level indicatorsD. Fault indicatorE. Emergency Stop ButtonF. Directional switchG. Horn buttonH. On/Off key switchI. One Step scrub buttonJ. FaST button (option)

ec−H2O button (option)K. ec−H2O system indicator light (option)L. Vacuum fan / squeegee buttonM. Brush Pressure increase button (+)N. Brush Pressure decrease button (−)O. Solution increase button (+)P. Solution decrease button (−)Q. Control panel cover

OPERATION

7T7 331051 (9−2013)

HOW THE MACHINE WORKS

The scrub components of the machine are asolution tank, scrub brushes or pads, a squeegee,a vacuum fan, and a recovery tank.

The buttons on the control panel control themachine scrubbing functions. The One StepScrub button turns the preset scrub functions onand off. The FaST button (option) enables theFaST (Foam Scrubbing Technology) system. Theec−H2O button (option) enables the ec−H2O(electrically converted water) system. The vacuumfan / squeegee button turns the vacuum fan on/offand raises and lowers the squeegee. The brushpressure buttons control the scrub brushpressure, and the solution buttons control thesolution flow.

The steering wheel controls the path of themachine travel. The directional switch controls theforward or reverse direction of the machine. Thepropel pedal controls the speed of the machine.The brake pedal slows and stops the machine.

There are two different types of scrub headsavailable, cylindrical and disk. Both scrub headsare available in two different widths. The Diskscrub head is available in 650 mm wide and 800mm wide. The Cylindrical scrub head is availablein 700 mm wide and 800 mm wide.

NOTE: The amount and type of soilage play animportant role in determining the type of brushesor pads to use. For specific recommendations,see the BRUSH INFORMATION section of thismanual or contact a Tennant representative.

CONVENTIONAL SCRUBBING

Water and detergent from the solution tank flow tothe floor through a solution valve. The brushesuse the detergent and water solution to scrub thefloor clean. As the machine propels forward, thesqueegee wipes the dirty solution from the floor.The suction created by the vacuum fan thendraws the dirty solution from the squeegee intothe recovery tank.

FOAM SCRUBBING SYSTEM (FaST MODEL)

Unlike conventional scrubbing, the optional FaST(Foam Scrubbing Technology) system operates byinjecting the FaST−PAK concentrate agent intothe system with a small amount of water and air.This mixture creates a large volume of expandedwet foam.

The expanded foam mixture is then dispersedonto the floor while the machine is scrubbing.When the squeegee picks up the mixture, thepatented foaming agent has collapsed and isrecovered into the recovery tank.

The FaST system can be used with all doublescrubbing and heavy duty scrubbing applications.

Using the FaST system improves safety and canincrease productivity by 30% by reducing yourdump/fill cycle. It will also reduce chemical usageand storage space. One FaST−PAK ofconcentrated agent can scrub up to 90,000 m2.

NOTE: Do not use the FaST system withconventional cleaning detergents in the solutiontank. Drain, rinse and refill the solution tank withclear cool water before operating the FaSTsystem. Conventional cleaning detergents maycause failure to the FaST system.

OPERATION

8 T7 331051 (03−09)

ec−H2O SCRUBBING (ec−H2O Model)

The ec−H2O (electrically converted water) systemoperates by producing electrically converted waterfor cleaning.

Normal water passes through a module where it isoxygenated and charged with an electric current.The electrically converted water changes into ablended acidic and alkaline solution forming aneutral pH cleaner. The converted water attacksthe dirt, breaks it into smaller particles, and pulls itoff the floor surface allowing the machine to easilyscrub away the suspended soil. The convertedwater then returns to normal water in the recoverytank.

The ec−H2O system can be used with all doublescrubbing applications.

NOTE: Do not enable the ec−H2O system withconventional cleaning detergents in the solutiontank. Drain, raise and refill the solution tank withclear cool water only before operating the ec−H2Osystem. Conventional cleaning detergents/restorers may cause failure to the ec−H2Osolution system.

NOTE: Storage or transporting machinesequipped with ec−H2O in freezing temperaturesrequires special procedures. Follow the freezeprotection procedure located in the STORAGEINFORMATION section.

BRUSH INFORMATION

For best results, use the correct brush type for thecleaning application. The following arerecommended brush applications.

Non-scuff polypropylene brush (Cylindricaland Disk) − This brush uses a softer, generalpurpose polypropylene bristle to lift lightlycompacted soilage without scuffing high-glosscoated floors.

Nylon brush (Cylindrical and Disk) − Softernylon bristles are recommended for scrubbingcoated floors. Cleans without scuffing

Super abrasive bristle brush (Cylindrical andDisk) − Nylon fiber impregnated with abrasive gritto remove stains and soilage. Strong action onany surface. Performs well on buildup, grease, ortire marks.

Surface preparation pad − This maroon pad isfor very aggressive floor stripping.

Heavy duty stripping pad − This black pad is forstripping floors. Cuts through old heavy finisheseasier to prepare the floor for recoating.

Stripping pad − This brown pad is for strippingfloors. Quickly and easily cuts through old finish toprepare the floor for recoating.

Scrubbing pad − This blue pad is for scrubbingfloors. Removes dirt, spills, and scuffs. Leaves aclean surface ready for recoating.

Buffing pad − This red pad is for buffing floors.Quickly cleans and removes scuff marks whilepolishing the floor to a high gloss.

Polishing pad − This white pad is for polishingfloors. Maintains a high gloss. Use for buffing verysoft finishes and lower traffic areas, and polishingsoft waxes on wood floors.

OPERATION

9T7 331051 (9−2013)

MACHINE SETUP

ATTACHING SQUEEGEE ASSEMBLY

1. Stop machine on a level surface.

2. Turn the machine ON/OFF key switch off.

FOR SAFETY: Before leaving or servicingmachine, stop on level surface, turn offmachine, and remove key.

3. Place the rear squeegee under the squeegeemount bracket and fasten with the two knobs.

4. Connect the vacuum hose to the squeegeeassembly. Loop the hose as shown using thehose clip provided.

The squeegee deflection is set at the factory.If the squeegee blade needs adjustments, seeADJUSTING REAR SQUEEGEE BLADEDEFLECTION section of this manual.

INSTALLING BRUSHES/PADSTo install the brushes or pad, see REPLACINGDISK SCRUB BRUSHES OR PAD DRIVER orREPLACING CYLINDRICAL SCRUB BRUSHESsection of this manual.

INSTALLING THE FaST−PAK (FaST Model)

1. Stop machine on a level surface.

2. Turn off the machine ON/OFF key switch.


3. Open the FaST−PAK compartment door andslide the empty FaST−PAK approximately halfway out from the FaST−PAK compartmentdoor.

4. Squeeze the button on the FaST supply hoseconnector, then pull the empty FaST−PAK outfrom the compartment.

5. Remove the perforated knock outs from thenew FaST−PAK carton. Do Not remove thebag from the carton. Pull out the hoseconnector located on the bottom of the bagand remove the hose cap from the connector.

NOTE: The FaST−PAK Floor CleaningConcentrate is specially designed for use with theFaST system scrubbing application. NEVER use asubstitute. Other cleaning solutions may causeFaST system failure.

6. Insert the new FaST−PAK approximately halfway into the FaST−PAK compartment.

7. Connect the FaST−PAK hose connector tothe FaST supply hose connector, slide theFaST−PAK the rest of the way into theFaST−PAK compartment, and close theFaST−PAK compartment door.

8. When replacing an empty FaST−PAK carton,you must scrub with the FaST system for afew minutes before the detergent will reach itsmaximum foaming.

OPERATION

10 T7 331051 (9−2013)

FILLING THE SOLUTION TANK


The machine is equipped with a fill port at the rearof the machine.


FOR CONVENTIONAL SCRUBBING: Open thesolution tank fill port and partially fill it with water(not to exceed 60°C). Pour the required amount ofdetergent into the solution tank according tomixing instructions on the bottle. Then continuefilling the solution tank with warm water until thewater level is just below the fill port.

FOR SAFETY: When using machine, followmixing and handling instructions on chemicalcontainers.

FOR FaST or ec−H2O SCRUBBING: Use coolclean water only (less than 21°C). Do not add anyconventional floor cleaning detergents, systemfailure may result.

NOTE: When filling the solution tank with abucket, make sure that the bucket is clean. Do notuse the same bucket for filling and draining themachine.

ATTENTION: For Conventional Scrubbing,only use recommended cleaning detergents.Machine damage due to improper detergentusage will void the manufacturer’s warranty.

MACHINE OPERATION

PRE−OPERATION CHECKLIST

� Check the machine for fluid leaks.

� Check the battery fluid and charge level.

� Check the tank cover seals for damage andwear.

� Clean the vacuum fan inlet filter.

� Check the condition of the scrubbing brushes.Remove any string, banding, plastic wrap, orother debris wrapped around them.

� Cylindrical brushes: Check that the debris trayis empty and clean.

� Check the squeegees for damage, wear andfor deflection adjustment.

� Check the vacuum hose for debris orblockage.

� Drain and clean the recovery tank.

� Check the brakes and steering for properoperation.

� Check the horn, headlights, taillights, safetylights, and backup alarm (if equipped).

� Check the service records to determinemaintenance requirements.

� FaST Scrubbing: Check the FaST−PAK(option) concentrate agent level. Replacecarton as needed. See the INSTALLING THEFaST−PAK AGENT section of the manual.

� For FaST or ec−H2O Scrubbing: Ensurethat all conventional cleaning agents aredrained and rinsed from the solution tank.

� For FaST or ec−H2O Scrubbing: Ensurethat the solution tank is filled with clear coolwater only.

BEFORE OPERATING

Pick up oversized debris before scrubbing. Pickup pieces of wire, string, twine, etc., that couldbecome wrapped around the scrub brush.

Plan the scrubbing in advance. Try to arrangelong runs with minimum stopping and starting. Doan entire floor or section at one time.

Pre−sweep the area to prevent streaking.

OPERATION

11T7 331051 (03−09)

SETTING SCRUB MODES

Before scrubbing, select the type of scrubbing willbe used, FaST (option), ec−H2O (option) orconventional scrubbing. Then set the preferredbrush pressure and solution flow settings.

SETTING FaST BUTTON

The FaST button enables the FaST system tocome on when the One Step Scrub button is on.The light next to the button will come on when it isin this mode.

NOTE: The solution flow cannot be adjusted whenthe machine is in the FaST mode.

SETTING ec−H2O BUTTON

The ec−H2O button enables the ec−H2O systemto come on when the One Step Scrub button ison. The light next to the button will come on whenit is in this mode.

NOTE: The ec−H2O system indicator light will notturn on until the machine starts scrubbing (Seepage 15).

ec−H2O SystemIndicator Light

SETTING BRUSH PRESSURE

Under normal conditions, the brush pressureshould be set to the minimum setting (the bottomlight). Under heavy grime conditions, the brushpressure should be set to the maximum setting(the top light). Travel speed and floor conditionswill affect scrubbing performance.

With the One Step Scrub button on, press eitherthe Brush Pressure increase button (+) or theBrush Pressure decrease button (−) to set thescrubbing pressure for the surface being cleaned.The new pressure setting will default to thissetting when the machine is powered on or off.

SETTING SOLUTION FLOW (CONVENTIONAL SCRUBBING ONLY)

NOTE: The solution flow cannot be adjusted whenthe machine is set for FaST or ec−H2O scrubbing.

Under normal soilage conditions the solution flowlevel should be set to the lowest setting (thebottom light). Under heavy grime conditions, thesolution flow level should be set to the highersettings (middle or top lights). Travel speed andfloor conditions will affect scrubbing performance.

OPERATION

12 T7 331051 (03−09)

With the One Step Scrub button on, press eitherSolution increase button (+) or Solution decreasebutton (−) to set the solution flow level for thesurface being cleaned. The new solution flowsetting will default to this setting when themachine is powered on or off.

ECONOMY SETTING

The machine will operate for a longer time if theBrush Pressure and Solution Flow settings are inthe Economy setting. The bottom lights of theBrush Pressure and Solution Flow settings are onwhen the machine is in the Economy setting.

SCRUBBING

FOR SAFETY: Do not operate machine, unlessoperator manual is read and understood.

1. Turn the On/Off key switch on.

2. Turn on lights (if equipped).

3. Select the preferred scrubbing settings (SeeSETTING SCRUB MODES).

4. Press the One Step Scrub button. The light onthe button is illuminated. All the presetscrubbing functions will turn on.

NOTE: Open the control panel cover to adjust theBrush Pressure and Solution Flow Setting whilescrubbing if necessary.

NOTE: DO NOT turn the ec−H2O/FaST systemon during conventional scrubbing. Conventionalcleaning detergents/restorers may cause failure tothe FaST/ec−H2O solution system. Drain, rinseand refill solution tank with cool clean water beforeoperating the FaST/ec−H2O system.

OPERATION

13T7 331051 (9−2013)

5. Place the directional switch in the direction themachine is to be moved (forward or reverse).

NOTE: The machine can scrub in both forward orreverse. The horn will sound when in reverse.

NOTE: The squeegee automatically raises whenthe machine is driven backwards. This preventsdamaging the squeegee. When the machine isplaced in reverse, the vacuum fan will shut offafter a short delay.

6. Press the propel pedal to begin scrubbing.


7. Release the propel pedal to stop the machine.Scrubbing functions stop and the automaticpark brake will engage when the machinestops.

8. The Brake pedal can be used to control themachine if quicker stopping is needed or ifoperating on an incline. Do not operatemachine on inclines exceeding 7% whenscrubbing.

FOR SAFETY: When using machine, go slowlyon inclines and slippery surfaces.

9. Press the One Step Scrub button to stopscrubbing. The light next to the One StepScrub button will turn off and the scrubbingfunctions will turn off after a short delay.

OPERATION

14 T7 331051 (9−2013)

DOUBLE SCRUBBING

For heavily soiled areas, use the double scrubbingmethod.

Double scrubbing can be performed using the FaST SCRUBBING SYSTEM (option), ec−H2O SCRUBBING SYSTEM (option) or CONVENTIONAL SCRUBBING methods.

Disk brushes: Before double scrubbing, removethe side squeegees to keep them from channelingwater while double scrubbing. To remove the sidesqueegees, lower the scrub head, then pull thepins on the front and rear ends of the squeegees.If the machine is equipped with the accessorybasket, you may hang the side squeegees fromthe hooks.

To double scrub, press the One Step Scrubbutton, then the vacuum fan button. The lightabove the vacuum fan button will turn off, thesqueegee will raise and the vacuum fan will stopoperating. Then scrub the area.

Let the cleaning solution set on the floor for 3−5minutes.

Place the side squeegees back on to the machinebefore scrubbing the floor the second time.

NOTE: It is easier to put the side squeegeesback on to the machine with the scrub headpartially lowered. This allows clearance to installthe pins.

Press the vacuum fan button again to lower thesqueegee and to turn on the vacuum fan. Thelight above the vacuum fan button will come on.Then scrub the floor a second time picking up thecleaning solution.


OPERATION

15T7 331051 (9−2013)

WATER PICKUP MODE (NO SCRUBBING)

The machine can be used to pick up water ornon−flammable liquid spills without scrubbing.

To pick up water or non−flammable liquid spills,check to make sure that the One Step Scrubbutton is not activated. The light next to the OneStep Scrub button must be off.


Then press the vacuum fan button. The lightabove the vacuum fan button will turn on, thesqueegee will lower and the vacuum fan will startoperating. Then pick up the water ornon−flammable liquid spill.

WHILE OPERATING THE MACHINE

Drive as straight a path as possible. Avoidbumping into posts or scraping the sides of themachine. Overlap the scrub paths by severalcentimeters (a few inches).

Avoid turning the steering wheel too sharply whenthe machine is in motion. The machine is veryresponsive to the movement of the steering wheel.Avoid sudden turns, except in emergencies.

When scrubbing dead end aisles, start at theclosed end of the aisle and scrub out towards theopening.

Adjust the machine speed, brush pressure, andsolution flow as required when scrubbing. Use theminimal brush pressure and solution flow settingsas possible.

Keep the machine moving to prevent damagingfloor finishes.

If poor scrubbing performance is observed, stopscrubbing and refer to MACHINETROUBLESHOOTING .

Conventional Scrubbing: Pour a recommendedfoam control solution into the recovery tank ifexcessive foam appears.

ec−H2O SCRUBBING: If an alarm sounds andthe ec−H2O system indicator light begins to blinkred, the ec−H2O module must be flushed toresume ec−H2O operation (See ec−H2OMODULE FLUSH PROCEDURE on page 34)

NOTE: When the alarm sounds and the lightblinks red, the machine will bypass the ec−H2Osystem. To continue scrubbing, turn the ec−H2Oswitch off and change over to conventionalscrubbing.

Change or rotate pads as necessary.

Observe the battery discharge indicator to ensurethere is adequate charge for machine operation.

Observe the solution tank indicator to ensure thesolution tank is not empty. Always empty recoverytank before refilling the solution tank.

Observe the recovery tank indicator to ensure therecovery is not full.

Remove the key when leaving the machineunattended.

Perform the Daily Maintenance Procedures afterscrubbing (see MACHINE MAINTENANCE).

Drive the machine slowly on inclines. Use thebrake pedal to control machine speed ondescending inclines. Scrub with the machine upinclines rather than down inclines.

FOR SAFETY: When using machine, go slowlyon inclines and slippery surfaces.

Do not operate machine in areas where theambient temperature is above 43� C (110� F). Donot operate scrubbing functions in areas wherethe ambient temperature is below freezing 0� C(32� F).

The maximum rated incline for scrubbing with themachine is 7%. The maximum rated incline duringtransport of the machine is 19.25%.

OPERATION

16 T7 331051 (03−09)

EMERGENCY STOP BUTTON

The Emergency Stop Button halts all power to themachine in case of an emergency. Press thebutton to halt the machine power. To restart themachine, turn the Emergency Stop Button to theright. Then turn the on/off switch to the off positionand then to the on position.

NOTE: This button should not be used for normalstopping as premature wear to the parking brakemay occur.

HOUR METER

The hour meter records the number of hours themachine has been powered on. This information isuseful for servicing the machine. It is locatedunder the seat.

ec−H2O SYSTEM INDICATOR LIGHT

The ec−H2O system indicator light will not turn onuntil the machine starts scrubbing.

ec−H2O SYSTEM INDICATOR LIGHTCODE

CONDITION

Solid green Normal operation

Blinking red Flush ec−H2O module

Solid red Contact Service Center

ec−H2O SCRUBBING: If an alarm sounds andthe ec−H2O system indicator light begins to blinkred, the ec−H2O module must be flushed toresume ec−H2O operation (See ec−H2OMODULE FLUSH PROCEDURE on page 34)

NOTE: When the alarm sounds and the lightblinks red, the machine will bypass the ec−H2Osystem. To continue scrubbing, turn the ec−H2Oswitch off and change over to conventionalscrubbing.

OPERATION

17T7 331051 (03−09)

SOLUTION TANK EMPTY INDICATOR

The solution tank empty indicator comes on whenthe solution tank is empty. When this happens, thescrub functions are disabled. If necessary, pressthe ONE STEP Scrub button for an additionalminute of operation to pick up standing water orsolution.

RECOVERY TANK FULL INDICATOR

The recovery tank full indicator comes on whenthe recovery tank is full. When this happens, thescrub functions are disabled. If necessary, pressthe ONE STEP Scrub button for an additionalminute of operation to pick up standing water orsolution.

BATTERY DISCHARGE INDICATOR

The battery discharge indicator shows the chargelevel of the batteries.

When the batteries are fully charged, all five lightsare lit. As the batteries discharge, the lights go outuntil only the left light is blinking.

When the left light blinks, the scrubbing functionswill shut off to alert the operator of the batterycondition. The machine will still propel when thelight is blinking. Recharge the batteries when thelight blinks. If necessary, press the ONE STEPScrub button for an additional minute of operationto pick up standing water or solution.

NOTE: Do not charge batteries more often thannecessary. Excessive charging could reduce thelife of the batteries. It is best to charge thebatteries only when the left light indicates that thebattery needs charging. See BATTERIES in theMAINTENANCE section.

NOTE: The blinking left battery discharge light willnot reset from blinking until the batteries are fullycharged.

OPERATION

18 T7 331051 (03−09)

FAULT INDICATOR

The fault indicator light (shown in upper right)comes on when there a fault is detected in thepropelling motor, vacuum fan motor, or brushmotors.

Refer to the table below to determine the causefor the fault or failure.

Indicator(s) Cause(s) RemedyFault Light blinks Propel motor is overloaded Contact Tennant service

representativeFault Light and top

Brush Pressure Lightboth blink

The right or rear Brush Motor isoverloaded (possibly from string or

banding wrapped around motor)

Remove string / banding from motoror Contact Tennant service

representativeFault Light and bottomBrush Pressure Light

both blink

The left or front Brush Motor isoverloaded (possibly from string or

banding wrapped around motor)

Remove string / banding from motoror Contact Tennant service

representativeFault Light and

Vacuum Fan Lightboth blink

Vacuum Fan Motor is overloaded Contact Tennant servicerepresentative

OPERATION

19T7 331051 (9−06)

CIRCUIT BREAKERS

Circuit breakers are resettable electrical circuitprotection devices that stop the flow of current inthe event of a circuit overload. Once a circuitbreaker is tripped, allow breaker to cool and thenpress the reset button to manually reset thebreaker.

If the overload that caused the circuit breaker totrip is still there, the circuit breaker will continue tostop current flow until the problem is corrected.

The circuit breakers are located inside the batterycompartment next to the hour meter.

The chart shows the circuit breakers and theelectrical components they protect.

CircuitBreaker Rating Circuit Protected

CB1 5 A Instrument Panel − power

CB2 15 A Accessories

FUSES

The fuse is a one-time protection device designedto stop the flow of current in the event of a circuitoverload. The 100 A fuse is located inside thebattery compartment near the hour meter. Itprotects the propel circuit.

NOTE: Always replace the fuse with a fuse of thesame amperage.

HAZARD LIGHT SWITCH (OPTION)

The Hazard Light Switch operates the optionalhazard light.

OPERATION

20 T7 331051 (9−2013)

DRAINING AND CLEANING THE TANKS

When cleaning is finished, or when the recoverytank full indicator comes on, the recovery tankshould be drained and cleaned. The solution tankthen can be filled again for additional cleaning.

1. Drive the machine to a solution disposal drain.



3. Tilt the operator seat forward and hook theseat latch into place to hold up the seat.

4. Remove the recovery tank drain hose. Whileholding the hose up, remove the plug, thenslowly lower the drain hose to the floor drainor sink.

5. Lift the recovery tank cover. Flush the insideof the recovery tank with clean water.


NOTE: DO NOT use steam to clean tanks.Excessive heat can damage tanks andcomponents.

6. Rinse the float sensor located inside therecovery tank.

7. Replace the recovery tank drain hose cap andmount the drain hose back onto the mountingclip after the tank is drained.

OPERATION

21T7 331051 (9−2013)

8. Remove and clean the vacuum fan filter.Clean the filter with a damp cloth or lowpressure water hose if dirty. Allow the vacuumfan filter to dry completely before reinstalling itin the machine.

9. Close the recovery tank cover.

10. Remove the solution tank drain hose. Whileholding the hose up, remove the plug, thenslowly lower the drain hose to the floor drainor sink.

11. Tilt the recovery tank back to access thesolution tank. Make sure the recovery tank isempty before tilting.

12. Flush the solution tank and rinse the floatsensor located inside the back part of thesolution tank. Rinse the screen filter on thebottom of the tank.

13. Carefully push the recovery tank forward toclose the solution tank.

14. Unhook the seat latch and lower the operatorseat.

15. Clean the front of the solution tank throughthe front access port located under the frontsolution tank cover. Wipe the bottom of thecover and the tank seal before replacing thecover.

OPERATION

22 T7 331051 (9−2013)

16. Cylindrical scrub head: Remove and clean thedebris tray. Place the tray back in the scrubhead when finished.

17. Replace the solution tank drain hose cap andmount the drain hose back onto the mountingclip after after the tank is drained.

PROPEL SYSTEM TROUBLESHOOTING

The audio alarm (horn) will sound and/or warninglights will come on when a propelling system faultor failure is detected. The machine will stoppropelling when this happens. Refer to the tablebelow to determine the cause for the fault orfailure.

Indicator(s) Cause(s) RemedyHorn repeatedly

beeps 2 timesPropel pedal depressed without

operator in seatSit in seat when operating machine

Horn repeatedly beeps 4 times

ON/OFF key switch is turned on whilepropel pedal is engaged

Release the propel pedal beforeturning key on


Failure in the Throttle system hasoccurred

Contact Tennant servicerepresentative


Failure in the Brake system hasoccurred



Failure in the Parking Brake systemhas occurred



Emergency Stop Button is engaged Reset Emergency Stop Button


ON/OFF key switch is turned on whilebattery charger is plugged into

machine

Unplug battery charger before startingmachine

Fault Light blinks Propel motor is overloaded Contact Tennant servicerepresentative

OPERATION

23T7 331051 (03−09)

MACHINE TROUBLESHOOTING

Problem Cause Remedy

Trailing water−poor or nowater pickup

Vacuum fan turned off Turn vacuum fan on

Worn squeegee blades Rotate or replace squeegee blades

Squeegee out of adjustment Adjust squeegee

Vacuum hose clogged Flush vacuum hoses

Vacuum fan filter dirty Clean vacuum fan filter

Vacuum fan cover seals worn Replace seals

Debris caught on squeegee Remove debris

Vacuum hose to squeegee orrecovery tank disconnected ordamaged

Reconnect or replace vacuum hose

Recovery tank cover notcompletely closed

Check for obstructions and closecover

Vacuum fan will not turn on Vacuum fan switch turned off Turn vacuum switch on

Recovery tank full Drain recovery tank

Foam filling recovery tank Empty recovery tank

Use less detergent

Recovery tank sensor dirty or stuck Clean or replace sensor

Little or no solution flow tothe floor (ConventionalScrubbing Mode)

Solution tank empty Fill solution tank

Solution flow turned off Turn solution flow on

Solution supply lines plugged Flush solution supply lines

Clogged solution tank filter Drain solution tank. removesolution tank filter, clean andreinstall

Poor scrubbing performance One Step Scrub button not on Turn One Step Scrub button on

Improper detergent or brushesused


Recovery tank full Empty recovery tank

Solution tank empty Fill solution tank

Debris caught on scrub brushes orpads

Remove debris

Worn scrub brush Replace scrub brush

Broken or loose brush drive belt(Cylindrical models)

Replace or tighten belt

Brush pressure set too light Increase brush pressure

Low battery charge Charge batteries until the chargerautomatically turns off

OPERATION

24 T7 331051 (03−09)

Problem Cause Remedy

FaST System does notoperate

FaST switch is turned off Turn on the FaST switch

Accessory circuit breaker tripped Reset circuit breaker

Clogged FaST−PAK supply hoseand/or connector

Soak connector and hose in warmwater and clean

FaST−PAK carton is empty or notconnected

Replace FaST−PAK carton and/orconnect supply hose

FaST system is not primed To prime, operate the FaST solu-tion system for a few minutes

Clogged solution tank filter Drain solution tank. removesolution tank filter, clean andreinstall

Clogged detergent injector See FaST SYSTEMMAINTENANCE

Faulty solution pump Replace solution pump

ec−H2O Model: ec−H2O system indicatorlight blinking red

Mineral deposit build−up in module Flush module (See ec−H2OMODULE FLUSH PROCEDUREon page 36)

ec−H2O Model: Alarm sounds

ec−H2O Model: ec−H2O system indicatorlight solid red

Defective module Contact Service Center

ec−H2O Model: ec−H2O system indicatorlight does not turn on

Defective light or module Contact Service Center

ec−H2O Model: No water flow

Clogged module Contact Service Center

Defective solution pump Replace solution pump

MAINTENANCE

25T7 331051 (03−09)

MAINTENANCE

1

1

2

8

3

9

11

5

4

3

6

310

7

10

3

12

13

14

355033

15

15

MAINTENANCE

26 T7 331051 (9−2013)

MAINTENANCE CHART

The table below indicates the Person Responsiblefor each procedure.O = Operator.T = Trained Personnel.

IntervalPersonResp. Key Description Procedure

Lubricant/Fluid

No. ofServicePoints

Daily O 1 Side and rear squeegees Check for damage andwear

− 3

Check deflection andleveling

− 6

O 2 Scrub brushes / pads Check for damage, wear,debris

− 2

O 8 Recovery tank Clean tank, screen filter,and float sensor

− 1

O 9 Vacuum fan filter Clean − 1O 7 FaST−PAK supply hose

and connector (option)Clean and connect hose tostoring plug when not inuse

− 1

O 12 Debris tray (Cylindrical brushes)

Clean − 1

Weekly T 4 Battery cells Check electrolyte level DW 12

50Hours

O 11 Disk scrub head floorskirt

Check for damage andwear

− 2

O 13 Cylindrical brushes Check taper and rotatefront to rear

− 2

100Hours

T 3 Vacuum Fan and tankseals

Check for damage andwear

− 3

T 14 Cylindrical brush drivebelts

Check tension − 2

200Hours

T 4 Battery terminals andcables

Check and clean − 12

500Hours

T 9 Vacuum fan motor(s) Check motor brushes(Check every 100 hoursafter initial 500 hourcheck)

− 1

T 5 Scrub brush motors Check motor brushes(Check every 100 hoursafter initial 500 hourcheck)

− 2

T 6 Propelling motor Check motor brushes(Check every 100 hoursafter initial 500 hourcheck)

− 1

T 10 Tires Check for damage andwear

− 3

1000Hours

T 15 FaST water and air filters(option)

Replace − 1

LUBRICANT/FLUID

DW Distilled water. . . .

NOTE: More frequent maintenance intervals may be required in extremely dusty conditions.

MAINTENANCE

27T7 331051 (9−2013)

BATTERIES


The lifetime of the batteries is limited to thenumber of charges the batteries receive. To getthe most life from the batteries, only recharge thebatteries when the battery discharge indicator isdown to the last bar. It’s also important to maintainthe proper electrolyte levels during the life of thebattery.

CHECKING THE ELECTROLYTE LEVEL (WET / LEAD ACID BATTERIES ONLY)

NOTE: Do Not check the electrolyte level if themachine is equipped with the battery wateringsystem. Proceed to HYDROLINK BATTERYWATERING SYSTEM (OPTION).

Check the battery electrolyte level weekly formachines equipped with wet/lead acid batteries.

08247

FOR SAFETY: When servicing machine, avoidcontact with battery acid.

The level should be slightly above the batteryplates as shown before charging. Add distilledwater if low. DO NOT OVERFILL. The electrolytewill expand and may overflow when charging.

Before Charging After Charging

NOTE: Make sure the battery caps are in placewhile charging.

CHECKING CONNECTIONS / CLEANING

After every 200 hours of use check for loosebattery connections and clean the surface of thebatteries, including terminals and cable clamps,with a strong solution of baking soda and water.Replace any worn or damaged wires. Do notremove battery caps when cleaning batteries.

Objects made of metal can potentially short circuitthe batteries. Keep all metallic objects off thebatteries.

GEL BATTERIES

Gel batteries do not require any maintenanceother than routine charging.

MAINTENANCE

28 T7 331051 (9−2013)

CHARGING THE BATTERIES WITHOFF−BOARD CHARGER

IMPORTANT: Before charging, make sure thatthe charger setting is properly set for thebattery type.

1. Drive the machine to a flat, dry surface.

NOTE: Make sure the area is well ventilated.



3. Tilt the operator seat forward and hook theseat latch into place to hold up the seat

NOTE: Make sure the batteries have the properelectrolyte level before charging. See CHECKINGTHE ELECTROLYTE LEVEL.

4. Plug the charger connector into the machinebattery charging connector.

WARNING: Batteries emit hydrogen gas.Explosion or fire can result. Keepsparks and open flame away. Keepcovers open when charging.

5. Plug the battery charger into the wall outlet.

NOTE: If the red “ABNORMAL CYCLE” lamplights when the TENNANT charger is plugged intoa wall outlet, the charger cannot charge thebattery and there is something wrong with thebattery.

07224

6. The TENNANT charger will startautomatically. When the batteries are fullycharged, the TENNANT charger willautomatically turn off.

NOTE: Do not disconnect he charger’s DC cordfrom the machine’s battery charging connectorwhen the charger is operating. Arcing may result.If the charger must be interrupted during charging,disconnect the AC power supply cord first.

7. After the charger has turned off, unplug thecharger from the machine battery chargingconnector.

8. Unhook the seat latch and lower the operatorseat.

MAINTENANCE

29T7 331051 (9−2013)

ELECTRIC MOTORS


The carbon brushes on the vacuum fan motor, thepropelling motor, and the scrub brush motorsshould be inspected after the initial 500 hours ofmachine operation and then every 100 hours afterthe initial 500 hours.

BELTS (Cylindrical Models)


The two brush drive belts are located on thecylindrical brush scrub head. The belts drive thecylindrical brushes. Proper belt tension is a 6 mmdeflection from a force of 2.3 to 2.5 kg at the beltmidpoint.

Check and adjust the belt tension every 100 hoursof operation.

MAINTENANCE

30 T7 331051 (9−2013)

SCRUB BRUSHES AND PADS

The machine can be equipped with either disk orcylindrical scrub brushes, or cleaning pads. Checkscrub brushes daily for wire or string tangledaround the brush or brush drive hub. Also checkbrushes for damage and wear.

DISK BRUSHES

The scrub brushes should be replaced if a largenumber of bristles are missing or if bristle length isless than 10 mm.

Cleaning pads must be placed on pad drivesbefore they are ready to use. The cleaning pad isheld in place by a pad holder.

Cleaning pads need to be cleaned immediatelyafter use with soap and water. Do not wash thepads with a pressure washer. Hang pads, or liepads flat to dry.

NOTE: Always replace brushes and pads in sets.Otherwise one brush or pad will be moreaggressive than the other.

REPLACING DISK BRUSHES OR PAD DRIVER

1. Stop machine on a level surface. Make surethe scrub head is in the raised position.



3. Pull the pin from the side squeegee retainerpivot.

4. Open the side squeegee retainer pivot towardthe front of the machine, then pull the sidesqueegee toward the rear of the machine toaccess the scrub brushes or pads.

MAINTENANCE

31T7 331051 (9−2013)

5. Pull the scrub brush/pad driver downward toremove it from the drive hub.

6. Place the new scrub brush/pad driver onto thedrive hub. Ensure that it is securely mountedonto the brush drive hub.

7. Close the side squeegee and the retainerpivot, then insert the pin.

NOTE: Be sure the pin is inserted completelythrough the bottom.

REPLACING DISK PADS

1. Remove the pad driver from the machine.

2. Squeeze the spring clip together to removethe center disk.

3. Flip or replace the scrub pad, center the scrubpad on the pad driver. Then reinstall thecenter disk to secure the pad in place on thepad driver.

4. Reinsert the pad driver into the machine.

MAINTENANCE

32 T7 331051 (9−2013)

CYLINDRICAL BRUSHES

Check the brush taper and rotate the brushesfrom front-to-rear every 50 hours of machineoperation for maximum brush life and bestscrubbing performance.

The cylindrical brushes should be replaced if largeamounts of bristles are missing, or if theremaining bristle length is less than 15 mm.

NOTE: Replace worn brushes in pairs. Scrubbingwith brushes of unequal bristle length will result indiminished scrubbing performance.

REPLACING OR ROTATING CYLINDRICALBRUSHES




3. Remove the cotter pin that holds the sidesqueegee in place. Swing the squeegee awayfrom the scrub head.

4. Remove idler plate from the scrub head bypressing the spring tab downward.

5. Pull the old brush out of the scrub head.

6. Attach the idler plate to the new or rotatedbrush on the end that has the double row ofbristles. Install the brush.

7. Push down on the door to catch the door inthe scrub head, then pull up on the door tolatch it into the spring.

8. Repeat for the other brush on the other sideof the scrub head

NOTE: Each side of the scrub head is stampedwith a letter. The idler door of that side of thescrub head is stamped with the same letter. Makesure the letter on the door matches the letter onthe scrub head when replacing the doors.

MAINTENANCE

33T7 331051 (9−2013)

CHECKING CYLINDRICAL BRUSH PATTERN

1. Apply chalk, or a similar marking material, to asmooth and level section of the floor.

NOTE: If chalk or other material is not available,allow the brush to spin on the floor for twominutes. A polish mark will remain on the floor.

2. Raise the scrub head, then position thebrushes over the chalked area.

3. Block the front or rear wheels to prevent themachine from moving.

4. Lower the scrub head in the chalked area andslowly press the propel pedal until the scrubbrushes start spinning. Allow the machine toscrub in the same place for 15 to 20 seconds.

5. Raise the scrub head and drive the machineaway from the chalked area.


6. Observe the brush patterns. If the brushpattern is the same width across the entirelength of each brush and both brushes are thesame width, no adjustment is necessary.

10355

7. If the brush patterns are tapered, seeADJUSTING CYLINDRICAL BRUSH TAPERsection of this manual.

10652

8. If the width of the brushes is not the same,see ADJUSTING CYLINDRICAL BRUSHWIDTH section of this manual.

10653

ADJUSTING CYLINDRICAL BRUSH TAPER




3. Remove the cotter pin that holds the sidesqueegee in place. Swing the squeegee awayfrom the scrub head.

MAINTENANCE

34 T7 331051 (9−2013)

4. Remove idler plate from the scrub head bypressing the spring tab downward.

5. While holding the flat end of the idler shaftwith a wrench, loosen the mounting screw onthe outside of the idler door.

6. Turn the idler shaft to raise or lower the end ofthe brush as needed to straighten the brushpattern. Tighten the mounting screw.

7. Check the brush patterns again and readjustas necessary until both patterns are thesame.

ADJUSTING CYLINDRICAL BRUSH WIDTH

1. Stop machine on a level surface. Make surethe scrub head is in the lowered position.



3. Loosen the two scrub head mounting screws.

4. Loosen the jam nut, then adjust the brushwidth adjustment screw. Tighten the jam nutand the two scrub head mounting screwswhen finished.

5. Check the brush patterns again and readjustas necessary until both brush patterns are thesame.

MAINTENANCE

35T7 331051 (9−2013)

FaST SYSTEM MAINTENANCE (FaST Model)


Every 1000 hours replace the water filter and airfilter located in the FaST detergent injector. Orderfilter kit p/n 9003009.

1. To access the detergent injector assembly,lower the scrub head. The injector assemblyis located on top of the scrub head.

new photo

Disk ModelCylindrical BrushModel

2. Remove the injector assembly from the pinchclamps.

3. Replace the water and air filter. An 8mm hexwrench is required to install the new water filter.

Water Filter (50 Mesh/Brown)

Air Filter (50 Mesh/Brown)

FaST SUPPLY HOSE CONNECTOR

The FaST supply hose connector is located belowthe FaST−PAK holder. Soak the connector inwarm water if detergent buildup is visible. When aFaST−PAK carton is not installed, store the supplyhose connector on the storing plug to prevent thehose from clogging.

MAINTENANCE

36 T7 331051 (9−2013)

ec−H2O SYSTEM (ec−H2O Model)

ec−H2O MODULE FLUSH PROCEDURE

This procedure is only required when an alarmsounds and the ec−H2O system indicator lightbegins to blink red.

FOR SAFETY: Before leaving or servicingmachine, stop on level surface and turn offmachine.

1. Drain the solution tank and recovery tank ofall water.

2. Pour 8 liters of white or rice vinegar into thesolution tank at full strength. Do not dilute.Use the rear fill port when adding vinegar. Donot use the front fill port. (p/n 1050552 −Vinegar,10 ltrs).

NOTE: Use white or rice vinegar only. Theacidity level should be between 4−8%. Do not useother acids for this procedure.

3. Disconnect the black connector fitting at thescrub head and place the hose into a bucket.

4. Turn the key to the on position.

5. Press and release the ec−H2O module flushswitch to start the flush cycle. The module islocated under the seat

NOTE: The module will automatically shut offwhen the flush cycle is complete (approx. 7minutes). The module must run the full 7 minutecycle in order to reset the system indicator lightand alarm.

6. After the 7 minute flush cycle, drain, rinse andfill solution tank with clean water. Then pressthe flush switch again to rinse out anyremaining vinegar from module. After 1−2minutes, press the flush switch to turn off themodule.

Repeat flush procedure if the ec−H2O moduledoes not reset. If module fails to reset,contact an Authorized Service Center.

SQUEEGEE BLADES

The side squeegees control water spray andchannel water into the path of the rear squeegee.The side squeegee blades are not adjustable.

The rear squeegee assembly channels water intothe vacuum fan suction. The front blade channelsthe water and the rear blade wipes the floor.

Check the squeegee blades daily for damage andwear. Rotate or replace the squeegee blades ifthe leading edge is torn or worn half-way throughthe thickness of the blade. Replace the sidesqueegee deflectors if they become worn.

The rear squeegee can be adjusted for levelingand deflection. The deflection and leveling of thesqueegee blades should be checked daily, orwhen scrubbing a different type of floor.

The rear squeegee assembly can be removedfrom the squeegee pivot to prevent damageduring transport of the machine.

MAINTENANCE

37T7 331051 (9−2013)

REPLACING (OR ROTATING) THE REARSQUEEGEE BLADES




3. Remove the squeegee suction hose from therear squeegee assembly. Then loosen bothrear squeegee assembly mounting knobs.

4. Pull the rear squeegee assembly from themachine.

5. Loosen the rear squeegee retaining bandtension latch and remove the retaining band.

6. Remove rear squeegee blade from the rearsqueegee assembly.

7. Loosen the two outer knobs on the rearsqueegee assembly. Remove the frontsqueegee blade from the squeegee assembly.

8. Install the new front squeegee blade or rotatethe existing blade to the new edge. Be surethe holes in the front squeegee blade arehooked onto the tabs on the front bladeclamp.

9. Lightly tighten the two outer knobs.

MAINTENANCE

38 T7 331051 (9−2013)

10. Install the new rear squeegee blade or rotatethe existing blade to the new edge. Be surethe holes in the squeegee blade are hookedonto the tabs on the squeegee assembly.

11. Reinstall the rear squeegee retaining bandonto the squeegee assembly. Be sure each ofthe flanges on the retaining band are seatedin the cut outs in the rear squeegee assembly.

12. Tighten the rear squeegee retaining bandtension latch.

13. Reinstall the rear squeegee under thesqueegee mount bracket and tighten all fourknobs.

14. Reinstall the squeegee suction hose onto therear squeegee assembly.

REPLACING SIDE SQUEEGEE BLADES


1. Open the side squeegee.

2. Pull the old side squeegee blade from the sidesqueegee retainer. Slide the new blade ontothe retainer.

3. Close the side squeegee.

MAINTENANCE

39T7 331051 (9−2013)

ADJUSTING THE SQUEEGEE GUIDE ROLLER


The squeegee guide rollers are located on bothends of the rear squeegee. The rollers guide thesqueegee blade end along a wall. Loosen the nutlocated at the top of the guide roller and move theroller in or out to adjust how close the end of thesqueegee blade is to the wall. The squeegeeblade end should be further away from the wallwhen the floor curves up into the wall.

LEVELING THE REAR SQUEEGEE

Leveling of the squeegee assures the entirelength of the squeegee is in even contact with thesurface being scrubbed. Perform this adjustmenton an even and level floor.

1. Lower the squeegee and drive the machineforward a few feet.



3. Look at the deflection of the squeegee overthe full length of the squeegee blade.

4. If the deflection is not the same over the fulllength of the blade, turn the squeegee levelingbolt to make adjustments.

The squeegee leveling bolt is located directlybehind the squeegee suction hose. DO NOTdisconnect the suction hose from thesqueegee frame when leveling squeegee.

Turn the squeegee leveling boltcounter-clockwise to increase the deflection atthe ends of the squeegee.

Turn the squeegee leveling bolt clockwise todecrease the deflection at the ends of thesqueegee blade.

5. Drive the machine forward with the squeegeedown to recheck the squeegee bladedeflection if adjustments were made.

6. Readjust the squeegee blade deflection ifnecessary.

ADJUSTING REAR SQUEEGEE BLADEDEFLECTION

Deflection is the amount of curl the overallsqueegee blade has when the machine movesforward. The best deflection is when thesqueegee wipes the floor dry with a minimalamount of deflection.

1. Lower the squeegee and drive the machineforward a few meters (feet).



MAINTENANCE

40 T7 331051 (9−06)

3. Look at the amount of deflection or “curl” ofthe squeegee blade. The correct amount ofdeflection is 12 mm for scrubbing smoothfloors and 15 mm for rough floors.

03719

12 mm

4. If the overall squeegee blade deflection needsto be adjusted, loosen the jam nuts on thesqueegee casters and adjust the height.

5. Drive the machine forward again to recheckthe squeegee blade deflection afteradjustments are made.

6. Readjust the squeegee blade deflection ifnecessary.

MAINTENANCE

41T7 331051 (9−2013)

SKIRTS AND SEALS

DISK SCRUB HEAD FLOOR SKIRT


The skirt is located in front of the disc brush scrubheads. Check the skirt for damage and wear afterevery 50 hours of operation.

The skirts should clear the floor by 0 to 6 mmwhen the scrub brushes are new and the scrubhead is down.

RECOVERY TANK SEAL


The recovery tank seal is located on the bottom ofthe recovery tank cover. Check the seal fordamage and wear after every 100 hours ofoperation.

SOLUTION TANK SEALS


There are two solution tank seals. Check the sealfor damage and wear after every 100 hours ofoperation.

A front seal is located on the bottom of thesolution tank cover. A rear seal is located on thebottom of the recovery tank.

TIRES


The machine has three solid rubber tires: one tireis front and two are in the rear. Check the tires fordamage and wear after every 500 hours ofoperation.

MAINTENANCE

42 T7 331051 (9−2013)

PUSHING, TOWING, AND TRANSPORTINGTHE MACHINE

PUSHING OR TOWING THE MACHINE

If the machine becomes disabled, it can bepushed from the front or rear, but only tow it fromthe front.

FOR SAFETY: When servicing machine, donot push or tow the machine on inclines withthe brake disabled.

Before attempting to push or tow the machine,disengage the brake as described below.

To disengage the brake, insert the tip of a smallscrew driver between the electronic brake leverand the hub.

For models manufactured before serial number00681, the propel motor harness connector mustalso be disconnected.

Only push or tow the machine on a level surface.Do not exceed 3.2 kp/h. It is NOT intended to bepushed or towed at a high speed.

Immediately after pushing or towing the machine,remove the screw driver to enable the parkingbrake.

FOR SAFETY: Do not operate machine withthe brake disabled.

TRANSPORTING THE MACHINEWhen transporting the machine by trailer or truck,be certain to follow the tie−down procedure below:

1. Raise the squeegee and scrub head.

FOR SAFETY: When loading/unloadingmachine onto/off truck or trailer, drain tanksbefore loading machine.

2. Load the machine using a ramp that cansupport the machine weight and operator. Donot operate the machine on a ramp inclinethat exceeds a 19.25% angle.

FOR SAFETY: When transporting machine,use a recommended ramp when loading/unloading into/off truck or trailer.

3. Position the front of machine against the frontof the trailer or truck.

4. Lower the scrub head and squeegee after themachine is positioned on the trailer or truck.

5. Place a block behind each wheel to preventthe machine from rolling.

6. Route the front tie−down straps through thestabilizer arms and then secure the tie−downsto the trailer or truck to prevent the machinefrom tipping.

NOTE: It may be necessary to install tie-downbrackets to the floor of the trailer or truck.

FOR SAFETY: When transporting machine,use tie−down straps to secure machine totruck or trailer.

7. Route the rear tie−down straps through theopening at the center part of the rear axle.

MAINTENANCE

43T7 331051 (9−2013)

MACHINE JACKING


Empty the recovery and solution tanks beforejacking the machine. Jack up the machine forservice at the designated locations. Use a hoist orjack capable of supporting the weight of themachine. Always stop the machine on a flat, levelsurface and block the tires before jacking up themachine.

Front jacking locations are located on both sidesof the machine.

Rear jacking locations are located on both sides ofthe machine at the axles.

FOR SAFETY: When servicing machine, blockmachine tires before jacking machine up. Usea hoist or jack that will support the weight ofthe machine. Jack machine up at designatedlocations only. Block machine up with jackstands.

STORAGE INFORMATION

The following steps should be taken when storingthe machine for extended periods of time.

1. Drain and clean the solution and recoverytanks. Open the recovery tank cover topromote air circulation.

2. Park the machine in a cool, dry area. Do notexpose the machine to rain. Store indoors.

3. Remove the batteries, or charge them everythree months.

FREEZE PROTECTION


1. Drain the solution tank and recovery tank ofall water.

2. Pour 8 liters of Propylene Glycol Based /Recreational Vehicle (RV) antifreeze into thesolution tank at full strength. Do not dilute.

3. FaST models: Remove the FaST−PAK andstore in temperatures above freezing.

FOR SAFETY: Avoid eye contact withantifreeze. Wear safety glasses.

4. Turn the machine power on and operate thesolution flow system. Turn the machine offwhen the antifreeze appears at the scrubhead.

Continue with the freeze protection procedure ifmachine is equipped with the ec−H2O system.

ec−H2O Model:

5. Press and release the flush switch on theec−H2O module to cycle the antifreezethrough ec−H2O system. When the antifreezeappears at the scrub head, press the switchagain to turn off the module.

IMPORTANT: Before operating machine, theantifreeze must be flushed from the module asdescribed below.

If the antifreeze is not properly flushed from theec−H2O system, the ec−H2O module may detectan error and not function (ec−H2O switch indicatorlight will turn red). If this occurs, reset key andrepeat the flush procedure as described below.

MAINTENANCE

44 T7 331051 (9−2013)

FLUSHING ANTIFREEZE FROM ec−H2OMODULE:


1. Drain the antifreeze from the solution tank intoa bucket.

2. Fill the solution tank with cool water until full(See FILLING THE SOLUTION TANK).

3 Disconnect the black connector fitting at thescrub head and place the hose into a bucket.

4. Press and release the ec−H2O module switchto flush the antifreeze from the ec−H2Osystem. The module is located under the seat.

When the water turns clear, press the moduleswitch again to stop the flush cycle.

Dispose the antifreeze in an environmentally safeway according to local waste disposal regulations.

5. The machine is now ready for scrubbing.

SPECIFICATIONS

45T7 331051 (9−2013)

SPECIFICATIONS

GENERAL MACHINE DIMENSIONS/CAPACITIES

Item Disk 650 mm

Cylindrical 700 mm

Disk 800 mm

Cylindrical 800 mm

Length 1520 mm

Height 1270 mm

Width / frame 740 mm 810 mm 740 mm 810 mm

Width / machine with scrub head 800 mm 830 mm 910 mm 930 mm

Width / rear squeegee (roller to roller) 850 mm 850 mm 1000 mm 1000 mm

Brush diameter 330 mm 150 mm 410 mm 150 mm

Brush length − 700 mm − 800 mm

Scrubbing path width 650 mm 700 mm 800 mm 800 mm

Solution tank capacity 110 L

Recovery tank capacity 110 L

Weight/net less batteries 265 Kg 287 kg 265 Kg 296 kg

Weight/with standard battery package 386 Kg 407 kg 386 Kg 416 kg

Weight/with heavy duty battery package 443 Kg 464 kg 443 Kg 473 kg

GVWR 675 Kg

Protection Grade IPX3

Values determined as per EN 60335−2−72 Disk 650 mm

Cylindrical 700 mm

Disk 800 mm

Cylindrical 800 mm

Sound pressure level LpA 69 dB(A) 75 dB(A) 69 dB(A) 75 dB(A)

Sound uncertainty KpA 3.5 dB(A) 3.0 dB(A) 3.5 dB(A) 3.0 dB(A)

Sound power level LWA + Uncertainty KWA 85 dB(A) 87 dB(A) 85 dB(A) 87 dB(A)

Vibration − Hand−arm 0.139 m/s2 0.070 m/s2 0.139 m/s2 0.070 m/s2

Vibration − Whole body 0.045 m/s2 0.023 m/s2 0.045 m/s2 0.023 m/s2

Vibration uncertainty K 0.040 m/s2 0.080 m/s2 0.040 m/s2 0.080 m/s2

GENERAL MACHINE PERFORMANCE

Item Measure

Aisle turnaround width for 650 mm scrub head 1730 mm

Aisle turnaround width for 800 mm scrub head 1840 mm

Travel Speed (maximum) 6.4 Km/h

Maximum rated climb and descent angle with full tanks 10.5%

Maximum rated climb and descent angle with empty tanks 19.25%

Maximum rated climb and descent angle when scrubbing 7%

SPECIFICATIONS

T7 331051 (03−09)46

POWER TYPE

Type Quantity Volts Ah Rating Weight (Each)

Batteries (standard lead acid) 4 6 235 @ 20 hr rate 30.0 kg

Batteries (heavy duty lead acid) 4 6 335 @ 20 hr rate 44.5 kg

Batteries (Gel) 4 6 180 @ 20 hr rate 30.0 kg

Batteries (heavy duty Gel) 4 6 220 @ 20 hr rate 30.0 kg

Type Use VDC kW (hp)

Electric Motors Scrub brush (Disk) 24 0.45 kW

Scrub brush (Cylinderical) 24 0.50 kW

Vacuum fan 24 0.45 kW

Propelling 24 0.85 kW

Type VDC amp Hz Phase VAC

Chargers (Smart) 24 30 50 / 60 1 240

Chargers (Gel/Agm) 24 30 50 / 60 1 240

Chargers (On−Board) 24 20 50 / 60 1 240

TIRES

Location Type Size

Front (1) Solid 90 mm wide x 260 mm OD

Rear (2) Solid 80 mm wide x 260 mm OD

FaST SYSTEM (OPTION)

Item Measure

Solution pump 24 Volt DC, 5A, 5.7 LPM open flow, 70 psi bypass setting

Solution flow rate 1.1 LPM

Detergent to water dilution ratio 1:1000

Detergent flow rate 1.35 CC/Minute

ec−H2O SYSTEM (OPTION)

Item Measure

Solution pump 24 Volt DC, 5A, 5.7 LPM open flow, 70 psi bypass setting

Solution flow rate* 1.1 L/min Disk model

1.5 L/min Cylindrical brush model

1.9 L/min Optional

* If the optional solution flow rates are required, contact an Authorized Service Center.

SPECIFICATIONS

47T7 331051 (9−06)

MACHINE DIMENSIONS

Frame (Cyl)810 mm

1270 mm

1520 mm

For 650 mm and 700 mm Modelssqueegee 850 mm

For 800 mm Modelsqueegee 1000 mm

Frame (Disk)740 mm

1014751

SPECIFICATIONS

T7 331051 (9−06)48

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