8 639 537 0 Operator Manual Chariot 3 IScrub 26 Windsor Sp Rider Scrubber Service Parts

2016-12-29

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86395370-C 03/29/16
Chariot 3 iScrub 26
Scrubber
Operating instructions (ENG)
MODELS: CS26
1.006-150.0
CSC26
1.006-151.0
CSM26
1.006-158.0
CSCM26
1.006-159.0
CS26SP
1.006-152.0
CSC26SP
1.006-153.0
CSM26SP
1.006-160.0
CSCM26SP
1.006-161.0
From Serial Number (Ref No. 1*)
* See Serial Number page in Spare
Parts List or call manufacturer.
286395370 Operator Manual - Chariot 3 iScrub 26
Machine Data Label / Overview
Overview
The Chariot Scrubber is a battery powered, stand-on, hard floor scrubber intended for commercial use. The
appliance applies a cleaning solution onto a hard floor, scrubs the floor with brushes or pads, and then vacuums the
soiled water back into the recovery tank.
Warranty Registration
Thank you for purchasing a Kärcher North America product. Warranty registration is quick
and easy. Your registration will allow us to serve you better over the lifetime of the product.
To register your product go to :
http://warranty.karcherna.com/
For customer assistance:
1-800-444-7654
3
Table of Contents
Machine Data Label / Overview . . . . . . . . . . . . . . . .2
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Safety
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . .5
HAZARD INTENSITY LEVEL . . . . . . . . . . . . . . . . . .7
Safety Label Locations . . . . . . . . . . . . . . . . . . . . . . .9
Operations
Technical Specifications . . . . . . . . . . . . . . . . . . . . .10
How This Machine Works . . . . . . . . . . . . . . . . . . . .12
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Drive Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Scrub Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Pre-Run Machine Inspection. . . . . . . . . . . . . . . . . .20
Starting Machine. . . . . . . . . . . . . . . . . . . . . . . . . . .20
Emergency Stop Procedures . . . . . . . . . . . . . . . . .20
Filling Solution Tank . . . . . . . . . . . . . . . . . . . . . . . .20
Normal Scrubbing . . . . . . . . . . . . . . . . . . . . . . . . . .21
To Begin Scrubbing . . . . . . . . . . . . . . . . . . . . . . . .22
To Stop Scrubbing . . . . . . . . . . . . . . . . . . . . . . . . .22
Double Scrub . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Emptying and Cleaning Tanks . . . . . . . . . . . . . . . .23
Solution Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Optional Chemical Metering System. . . . . . . . . . . .23
Squeegee Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Squeegee - Cylindrical . . . . . . . . . . . . . . . . . . . . . .25
Maintenance
Service Schedule . . . . . . . . . . . . . . . . . . . . . . . . . .27
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Changing Batteries . . . . . . . . . . . . . . . . . . . . . . . . .32
Onboard Charger Programming . . . . . . . . . . . . . . .33
Squeegee - Disk . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Squeegee - Cylindrical . . . . . . . . . . . . . . . . . . . . . .34
Squeegee Blades . . . . . . . . . . . . . . . . . . . . . . . . . .35
Scrub Deck - Disk . . . . . . . . . . . . . . . . . . . . . . . . . .36
Scrub Brushes . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Finished Floors . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Replacing or Installing Scrub Brushes - Disk . . . . .38
To Replace Scrub Brush Motors. . . . . . . . . . . . . . .39
Brush Motor Carbon Brush Replacement. . . . . . . .39
Scrub Deck - Cylindrical . . . . . . . . . . . . . . . . . . . . .40
Replacing or Installing Scrub Brushes - Cylindrical 41
Actuator Scrub Deck Removal / Replacement . . . .42
Scrub Deck Actuator Adjustment . . . . . . . . . . . . . .42
Circuit Protection. . . . . . . . . . . . . . . . . . . . . . . . . . .43
Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Solution Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Chemical Bottle (Optional) . . . . . . . . . . . . . . . . . . .45
Flow Meter (Optional) . . . . . . . . . . . . . . . . . . . . . . .45
Vacuum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Recovery Tank Float Shut-off . . . . . . . . . . . . . . . . .47
To Repair or Replace Vacuum Motor . . . . . . . . . . .47
Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Electric Parking Brake Engagement . . . . . . . . . . . .49
Drive Motor Carbon Brush Replacement . . . . . . . .49
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Controller Fault Codes . . . . . . . . . . . . . . . . . . . . . .54
Suggested Spare Parts - Disk. . . . . . . . . . . . . . . . 56
Suggested Spare Parts - Cylindrical . . . . . . . . . . . 57
86395370 Operator Manual - Chariot 3 iScrub 26
4
How To Use This Manual
This manual contains the following sections:
• How to Use This Manual
•Safety
• Operations
• Maintenance
• Suggested Spare Parts
The HOW TO USE THIS MANUAL section will tell you
how to find important information for ordering correct
repair parts.
Parts may be ordered from authorized dealers. When
placing an order for parts, the machine model and
machine serial number are important. Refer to the
MACHINE DATA box which is filled out during the
installation of your machine. The MACHINE DATA box
is located on the inside of the front cover of this manual.
The model and serial number of your machine is
located on the back of the machine.
The SAFETY section contains important information
regarding hazardous or unsafe practices of the
machine. Levels of hazards are identified that could
result in product damage, personal injury, or severe
injury resulting in death.
The OPERATIONS section is to familiarize the operator
with the operation and function of the machine.
The MAINTENANCE section contains preventive main-
tenance to keep the machine and its components in
good working condition. They are listed in this general
order:
• Service Schedule
• Batteries
• Squeegee
• Scrub Brush
• Vacuum
• Drive Motor
• Troubleshooting
NOTE: The manual part number is located on the
lower right corner of the front cover.
Model:
Date of Purchase:
Serial Number:
Dealer:
Address:
Phone Number:
Sales Representative:
86395370 Operator Manual - Chariot 3 iScrub 26
5
Safety
IMPORTANT SAFETY INSTRUCTIONS
When using this machine, basic precaution
must always be followed, including the following:
READ ALL INSTRUCTIONS BEFORE USING THIS MACHINE.
To reduce the risk of fire, electric shock, or injury:
Use only indoors. Do not use outdoors or expose to rain.
Use only as described in this manual. Use only manufacturer's recommended components and attachments.
If the machine is not working properly, has been dropped, damaged, left outdoors, or dropped into water, return it
to an authorized service center.
Do not operate the machine with any openings blocked. Keep openings free of debris that may reduce airflow.
This machine is not suitable for picking up hazardous dust.
Machine can cause a fire when operating near flammable vapors or materials. Do not operate this machine near
flammable fluids, dust or vapors.
This machine is suitable for commercial use, for example in hotels, schools, hospitals, factories, shops
and offices for more than normal housekeeping purposes.
Maintenance and repairs must be done by qualified personnel.
If foam or liquid comes out of machine, switch off immediately.
Disconnect battery before cleaning or servicing.
Before the machine is discarded, the batteries must be removed and properly disposed of.
Make sure all warning and caution labels are legible and properly attached to the machine.
During operation, attention shall be paid to other persons, especially children.
Before use, all covers and doors shall be put in the positions specified in the instructions.
When leaving unattended, secure against unintentional movement.
The machine shall only be operated by instructed and authorized persons.
When leaving unattended, switch off or lock the main power switch to prevent unauthorized use.
Only chemicals recommended by the manufacturer shall be used.
This appliance has been designed for use with the brushes specified by the manufacturer. The fitting of other
brushes may affect its safety.
Do not use on surfaces having a gradient of over 10% (6 degrees).
READ AND SAVE THESE INSTRUCTIONS
6
Safety
MESURES DE SÉCURITÉ IMPORTANTES
Lors de l'utilisation d'un appareil à batteries, il est nécessaire de respecter
systématiquement des mesures de sécurité de base, comme suit:
PRENEZ NOTE DE TOUTES CES MESURES AVANT D'UTILISER CETTE MACHINE.
Pour réduire les risques d'incendie, de chocs électriques, ou de blessures:
N'utiliser cette machine qu'en intérieur. Ne jamais l'utiliser à l'extérieur ou dans la pluie.
N'utiliser cette machine que comme décrit dans le présent manuel. N'utiliser que les composants et les accessoires
conseillés par le fabricant.
Lorsque la machine ne fonctionnant pas correctement, a fait l'objet d'une chute ou d'une détérioration, a été laissée
à l'extérieur, est tombée dans l'eau, la retourner au centre de service agréé.
Ne pas opérer la machine lorsque les conduits de ventilation sont bloquées. Débarrasser les débris des conduits,
car ils peuvent réduire l'écoulement d'air.
Cette machine n'est pas adaptée au ramassage de poussières dangereuses
Cette machine peut provoquer un incendie lorsqu'elle est utilisée près de vapeurs ou de matériaux inflammables.
Ne pas l'utiliser près de liquides, de poussières ou de vapeurs inflammables.
Cette machine est destinée à un usage commercial. Elle est recommandée davantage pour les domaines hôtelier,
scolaire, hospitalier, industriel ou pour les bureaux, les chaînes de magasin, que pour un usage domestique
normal.
L'entretien et les réparations de la machine doivent être effectuées par un personnel qualifié.
Si de la mousse ou du liquide sort de la machine, la mettre hors tension immédiatement.
Déconnecter les batteries avant de nettoyer la machine ou de la soumettre à un entretien.
Avant de se débarrasser de la machine, il est nécessaire de retirer les batteries et de les jeter correctement.
S'assurer que toutes les plaques d'avertissement ou de précaution sont lisibles et fixées correctement sur la
machine.
Durant la manoeuvre de la machine, prendre garde aux personnes environnantes et notamment aux enfants.
Avant l'utilisation de la machine, veiller à positionner tous les couvercles et portes comme indiqué dans les instruc-
tions.
Lorsque la machine est laissée sans surveillance, s'assurer qu'elle ne se déplace pas de manière accidentelle.
Cette machine ne doit être manoeuvrée que par un personnel expérimenté et qualifié.
Lorsque la machine est laissée sans surveillance, la mettre hors tension ou verrouiller l'interrupteur principal afin
d'empêcher un emploi non autorisé.
Seuls les produits chimiques recommandés par le fabricant doivent être utilisés.
Cette machine a été conçue pour être utilisée avec des brosses spécifiées par le fabricant.
L'utilisation d'autres brosses peut affecter sa sûreté.
N'employez pas sur des surfaces ayant un gradient de plus de 10% (6 degrés).
CONSERVER CES INSTRUCTIONS
86395370 Operator Manual - Chariot 3 iScrub 26
7
Safety
The following symbols are used throughout this guide as indicated in their descriptions:
HAZARD INTENSITY LEVEL
There are three levels of hazard intensity identified by signal words -WARNING and CAUTION and FOR SAFETY.
The level of hazard intensity is determined by the following definitions:
WARNING - Hazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which could result in minor personal injury or product or property damage.
FOR SAFETY: To Identify actions which must be followed for safe operation of equipment.
Report machine damage or faulty operation immediately. Do not use the machine if it is not in proper operating
condition. Following is information that signals some potentially dangerous conditions to the operator or the equip-
ment. Read this information carefully. Know when these conditions can exist. Locate all safety devices on the
machine. Please take the necessary steps to train the machine operating personnel.
FOR SAFETY:
DO NOT OPERATE MACHINE:
Unless Trained and Authorized.
Unless Operation Guide is Read and understood.
In Flammable or Explosive areas.
In areas with possible falling objects.
WHEN SERVICING MACHINE:
Avoid moving parts. Do not wear loose clothing; jackets, shirts, or sleeves when working on the machine. Use
Kärcher North America approved replacement parts.
Batteries emit hydrogen gas. Explosion or fire can result. Keep sparks and open flame away. Keep battery
compartment open during charging. Keep sparks and flames away from the batteries. Do not smoke
around batteries.
Disconnect batteries before working on machine. Only qualified personnel should work inside machine.
Always wear eye protection and protective clothing when working on or near batteries. Avoid skin contact
with the acid contained in the batteries.
Never allow metal to lie across battery tops.
86395370 Operator Manual - Chariot 3 iScrub 26
8
Safety
Les symboles ci-dessous sont utilisés à travers ce manuel comme illustré dans leurs descriptions:
DEGRÉS DE RISQUES EN CAS DE DANGER
Il existe trois degrés de risques identifiés par les termes signalétiques -AVERTISSEMENT et ATTENTION et POUR
VOTRE SÉCURITÉ. Le degré de risque est défini de la manière suivante:
AVERTISSEMENT - Dangers ou méthodes dangereuses qui POURRAIENT provoquer de graves blessures ou
entraîner la mort.
ATTENTION - Dangers ou méthodes dangereuses qui pourraient provoquer des blessures légères ou une détério-
ration du produit ou des biens immobiliers.
POUR VOTRE SÉCURITÉ: ce signe permet d'identifier les mesures de précaution à prendre pour assurer un bon
fonctionnement du matériel.
Rendre compte immédiatement d'une défaillance ou d'une détérioration de la machine. Ne pas utiliser la machine
si celle-ci ne fonctionne pas correctement. Lire soigneusement les informations ci-dessous signalant certains
dangers potentiels pour l'opérateur de la machine. L'opérateur doit être absolument au courant de ces dangers
potentiels. Localiser tous les dispositifs de sécurité sur la machine. Il est conseillé de prendre les mesures néces-
saires pour former le personnel opérateur.
POUR VOTRE SÉCURITÉ:
NE PAS MANOEUVRER LA MACHINE:
Lorsqu'on n'est pas expérimenté ou qualifié.
Lorsque le guide d'utilisation n'est pas été lu ou compris.
Dans des zones inflammables ou explosives.
Dans des zones où des objets peuvent tomber.
LORS DE L'ENTRETIEN DE LA MACHINE:
Éviter les parties amovibles. Ne pas porter de vêtements amples, tels que des vestes, des chemises ou des
vêtements avec manches lors de l'utilisation de la machine. Utiliser les pièces détachées Kärcher North America
homologuées.
Les batteries émettent le gaz d'hydrogène. L'explosion ou le feu peut résulter. Étincelles de subsistance et
flamme nue loin. Compartiment de batterie de subsistance ouvert en chargeant. Étincelles et flammes de
subsistance loin des batteries. Ne fumez pas autour des batteries.
Déconnecter les batteries avant de travailler sur la machine. La machine ne doit être confiée qu'à un
personnel qualifié. Porter systématiquement des lunettes et des vêtements de protection lors d'une inter-
vention sur les batteries ou aux alentours. Éviter tout contact de la peau avec l'acide contenu dans les
batteries.
Ne jamais placer d'objets métalliques sur le dessus des batteries.
86395370 Operator Manual - Chariot 3 iScrub 26
9
Safety
Safety Label Locations
These drawings indicate the location of safety labels on the machine. If at any time the labels become illegible,
promptly replace them.
EMPLACEMENT DE L'ÉTIQUETTE DE SÉCURITÉ
REMARQUE : Ces dessins indiquent l'emplacement des étiquettes de sécurité sur la machine. Si, à tout moment,
les étiquettes deviennent illisibles, contactez votre représentant autorisé pour un remplacement rapid
BATTERY CAUTION
86244300
86252520
86244310
86335010
86335010
CAUTION LABEL
WARNING LABEL
OBC CAUTION
86392960
86395370 Operator Manual - Chariot 3 iScrub 26
10
Operations
Technical Specifications
ITEM DIMENSION/CAPACITY
Nominal power 1800 W
Rated Voltage 36 Volts DC
Rated Amperage 50 amps
Batteries 3 X12 Volt 205-234 AH @ 20 hr. rate
Battery Compartment Dimensions 21 in. x 16 in. x 17 in. tall (533mm x 406mm x 432mm)
Scrub Brush Motors - Disk Machine 2 x.5 HP (350 W)
Scrub Brush Motors - Cylindrical Machine 2 x .75 HP (560W)
Vacuum Motor(s) .63 HP (470 W)
Maximum flow rate of vacuum motor 72 cfm (33.98 liters per second)
Maximum suction of vacuum motor 47.3 inches of water (11.7 kPa)
Propelling Motor 0.8 HP (600 W) 36V DC motor
Mass (GVW) 1274 lbs (578 kg)
Weight empty without batteries 420 lbs (191 kg)
Solution Control Variable with automatic shut-off in neutral
Solution capacity 25 gal (95 L)
Recovery capacity 27 gal (102 L)
Scrub brush diameter - Disk Machine 13 inch (330 mm)
Scrub brush diameter - Cylindrical Machine 4.1 inch (105 mm)
Scrub brush pressure 0 -150lbs (0-667N)
Scrub brush pressure - Cylindrical Machine 0 - 44 lbs
Scrub brush speed - Disk Machine 300 rpm
Scrub brush speed - Cylindrical Machine 720 - 950 rpm
Tires 10 in. (254mm) Solid scrubber compound rear, urethane front
Foundation Pressure 135 psi (928 Kpa)
Maximum Speed 4.1 miles/hour (6.5 Km/hour)
Frame Construction Powder coated steel
Brake Electrical parking brake,sets automatically whenever operator
steps off platform or engages emergency stop.
Minimum aisle u-turn width 60 in. (1524 mm)
Maximum rated climb and descent angle 10% (6 degrees)
Sound Pressure Level 66 dBA
86395370 Operator Manual - Chariot 3 iScrub 26
11
Operations
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction
concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure
that they do not play with the appliance.
Cet appareil n'est pas prévu à l'usage des personnes (enfants y compris) avec des possibilités physiques, sensori-
elles ou mentales réduites, ou le manque d'expérience et de connaissance, à moins qu'ils aient été donnés la
surveillance ou l'instruction au sujet de l'utilisation de l'appareil par une personne chargée de leur sûreté. Des
enfants devraient être dirigés pour s'assurer qu'ils ne jouent pas avec l'appareil.
ITEM MEASURE
Height 50.0 inches (1270 mm)
Length 56.1 inches (1425 mm)
Width without squeegee 29.5 inches (749 mm)
Width of squeegee - Disk Machine 32.7 inches (830 mm)
Width of squeegee - Cylindrical Machine 33.5 inches (850 mm)
Width of scrub path 26 inches (660mm)
86395370 Operator Manual - Chariot 3 iScrub 26
WIDTH
HEIGHT
LENGTH
12
Operations
How This Machine Works
The Chariot® is a battery powered, self-propelled, hard
floor scrubber intended for commercial use. The
appliance applies a cleaning solution onto a hard floor,
scrubs the floor with brushes, and then vacuums the
soiled water back into the recovery tank.
The machine's primary systems are the solution
system, scrub system, recovery system, and operator
control system.
The function of the solution system is to store cleaning
solution and deliver it to the scrub system. The solution
system consists of the solution tank, strainer, valve and
an optional chemical metering pump and reservoir are
available. The solution tank stores cleaning solution
(water and detergent) until it is delivered to the scrub
system. The strainer protects the valve from debris.
The valve automatically prevents solution flow unless
the scrub brushes are turned on and the machine is
being propelled.
The function of the scrub system is to scrub the floor.
The disk scrub system consists of two rotary type disk
scrub brushes, motors, scrub deck skirt and lift
actuator. The brushes scrub the floor as the motors
drive the brushes. The brush drive hubs allow the
scrub brushes to follow irregularities and changes in
the floor without loosing contact with the floor. The
scrub deck skirt controls the cleaning solution on the
floor so that the squeegee can pick it up.
The function of the recovery system is to vacuum the
soiled water back into the recovery tank. The recovery
system consists of the squeegee, vacuum motor, float
ball filter, recovery tank. The squeegee wipes the dirty
solution off the floor as the machine moves forward.
The vacuum motor provides suction to draw the dirty
solution off the floor and into the recovery tank. The
float ball filter protects the vacuum fan from debris and
shuts off suction to the tank when tank is full. The
recovery tank stores the dirty solution.
The function of the operator control system is to control
the direction and speed of the machine. The directional
control system consists of the direction control drive
reset switch, throttle pedal, emergency stop/brake
switch, steering wheel, propel controller, and drive
wheel. The directional control drive reset switch signals
forward or reverse direction and makes sure the
operator is on platform before machine will propel. The
controller interprets signals from the throttle pedal to
command the drive wheel to propel or slow the
machine. The steering wheel points the drive wheel in
the direction desired by the operator. The parking brake
automatically engages when the operator steps off the
platform. The emergency stop/brake can be used to
hold the machine on slopes.
86395370 Operator Manual - Chariot 3 iScrub 26
13
Operations
Components
1. Control Panel-Drive
2. Control Panel-Scrub
3. Console
4. Pedal Platform
5. Rear Cover
6. Tank
7. Recovery Sight Dome
8. Solution Drain Hose
9. Scrub Deck Aqua-Mizer™
10. Scrub Deck Skirt
11. Recovery Lid
12. Recovery Drain Hose
86395370 Operator Manual - Chariot 3 iScrub 26
1
2
3
4
56
7
8
9
10
11
12
14
Operations
86395370 Operator Manual - Chariot 3 iScrub 26
15
Operations
Drive Controls
1. Key Switch
2. Emergency Stop/Brake Switch
3. Directional Control / Drive Reset Switch
4. Throttle Pedal
5. Horn Button
6. Steering Wheel
7. Speed Control
8. Battery Discharge Indicator
9. Hour Meter
1. KEY SWITCH
Controls the power for machine functions.
To turn the machine power on, rotate key clockwise.
To turn the machine off, rotate key counterclockwise.
When the key is turned on the battery symbol will flash while the system runs self-diagnostics and returns
scrub deck and squeegee to their raised positions, if necessary. The controller will not respond to other
commands until this routine is complete.
2. EMERGENCY STOP/BRAKE SWITCH
This safety feature is designed to cut all power to the machine at any time and apply parking brake.
To shut the machine power off, push the Emergency Stop Switch, this will also engage the parking brake and
cause the machine to stop immediately. Excessive emergency stop usage can cause premature brake wear;
use only when necessary.
To reset the machine, rotate the switch clockwise.
3. DIRECTIONAL CONTROL / DRIVE RESET SWITCH
This safety feature is designed to ensure safe engagement of propel drive. Each time the machine power is
turned on, or each time an operator steps on to the platform, the Drive Reset Switch must be pushed before
machine will propel.
Controls the direction of travel of the vehicle. The lit arrow on the switch indicates direction of travel.
To travel forward, press the top of the switch.
To travel in reverse, press the bottom of the switch.
86395370 Operator Manual - Chariot 3 iScrub 26
16
Operations
4. THROTTLE PEDAL
Controls the speed of the vehicle within the speed control setting selected. Pressing the pedal causes the
machine to travel in the direction selected by the Directional Control Switch.
To increase speed, increase pressure on the pedal.
To decrease speed, decrease pressure on the pedal.
5. HORN BUTTON
The horn is activated by pressing the horn button.
6. STEERING WHEEL
The steering wheel turns the front wheel causing the machine to change direction.
7. SPEED CONTROL
Controls the maximum speed of the machine. There are two transport settings, slow and fast.
To change speed, rotate the dial to either slow or fast position. The speed for fast and slow are as indicated on
the control panel by the symbols shown below.The throttle pedal will always regulate the speed between 0 and
maximum.
86395370 Operator Manual - Chariot 3 iScrub 26
17
Operations
8. BATTERY CHARGE LEVEL INDICATOR
Indicates the charge level of the batteries.
The meter display is divided into 10 bars. Bars illuminated on the far right indicate full charge. Bars flashing
near the left side indicate the batteries should be recharged. Further operation of the machine could damage
the machine or the batteries.
When the machine is left overnight with less than a full charge, the display may initially indicate a full charge. It
will also indicate a full charge if the batteries are disconnected, then reconnected. After a few minutes of
operation the meter will give the correct charge level.
9. HOUR METER
Records the number of hours the machine has been in scrubbing operation. This information is useful in deter-
mining when to service the machine.
86395370 Operator Manual - Chariot 3 iScrub 26
18
Operations
Scrub Controls
1. Function Mode Dial
The first two positions are for transport only. See drive controls section.
Daytime cleaning / light cleaning
This mode is used for light cleaning. In this mode the machine will propel at a maximum of
medium speed. The scrub deck will automatically lower to a lower down pressure setting. The
water will flow at a low rate. Water will automatically shut off in neutral and restart when
pressure resumes. The squeegee will automatically lower and vacuum will flow at a slow rate.
(Squeegee will continue to lower and the vacuum will continue to run in neutral. The
squeegee will raise in reverse.)
Daytime Plus cleaning / light cleaning
This mode is used for light cleaning. In this mode the machine will propel at a maximum of
medium speed. The scrub deck will automatically lower to a lower down pressure setting. The
water will flow at a low rate. Water will automatically shut off in neutral and restart when
pressure resumes. The squeegee will automatically lower and vacuum will flow at a medium
rate.
Medium scrub level cleaning
This mode is used for medium level cleaning. In this mode the machine will propel at a
maximum of medium. The scrub deck will lower at a medium down pressure. The water will
flow at a medium rate. The vacuum will flow at a medium rate.
1
2
86395370 Operator Manual - Chariot 3 iScrub 26
19
Operations
Heavy scrub level cleaning
This mode is used for heavy level cleaning. In this mode the machine will propel at a
maximum of slow speed. The scrub deck will lower to a heavy down pressure. The water will
flow at a high rate. The vacuum will flow at a high rate.
Vacuum only mode
This mode is used for picking up solution only. The brushes and water will both be up and off.
In this mode the machine will propel at a maximum of slow speed. The squeegee will auto-
matically lower and the vacuum will flow at a high rate. The squeegee will raise in reverse.
The squeegee and vacuum will remain down and on in neutral propel.
Double Scrub cleaning
This mode is used for putting down solution and scrubbing without picking it back up. In this
mode the machine will propel at a maximum speed of slow. The scrub deck will automatically
lower to a heavy scrub level. The solution will flow at a high rate. The brushes and water will
shut off and raise when the machine is in neutral. They will resume when propelling is
resumed.
2. Solution Button and Indicator
The button enables and disables solution flow. When the green indicator is illuminated, solution flow is
enabled.
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20
Operations
Machine Operation
Pre-Run Machine Inspection
Do a pre-run inspection to find possible problems that
could cause poor performance or lost time from break-
down. Follow the same procedure each time to avoid
missing steps.
NOTE: Perform Pre-run Machine Check before
operating machine listed in Service Schedule in
Maintenance Section.
Starting Machine
FOR SAFETY: Before starting machine, make sure
that all safety devices are in place and operating
properly.
1. The operator should be on the pedal platform. The
throttle pedal must be in the neutral position.
2. Turn the machine power on by turning key switch
clockwise to the "ON" position.
3. Press the Drive Reset Directional Control Switch to
reset and set the intended direction for travel.
4. Press lightly on the throttle pedal with right foot.
Emergency Stop Procedures
1. Push in emergency stop button. This will also
engage the parking brake and cause the machine
to stop immediately.
Filling Solution Tank
FOR SAFETY: Before leaving or servicing
machine; stop on level surface, turn off machine
and remove key.
1. Turn the machine power off.
2. Remove solution cover.
3. Fill the solution tank with clean water, leaving
enough room for the required amount of detergent.
The solution tank capacity filled to fill inlet is 25 gal-
lons (95 liters). The water must not be hotter than
140° F (60°C) to prevent damage to the tank.
4. Measure the chemical into the solution tank. The
solution cover is also a 2 oz. (60 ml) measuring
cup. Liquid chemicals should be added to the solu-
tion tank after filling with water. Dry chemicals
should be thoroughly mixed before being added
into solution tank. Commercially available, high
alkaline floor cleaners, are suitable for use in the
solution system.
NOTE: Read the chemical manufacturers
recommended proportion instructions.
5. Replace solution tank cover.
Flammable materials can cause an explosion or
fire. Do not use flammable materials in the tanks.
Les matières inflammables peuvent provoquer une
explosion ou un incendie. Ne pas utiliser de
matériaux inflammables dans les réservoirs.
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21
Operations
Optional Chemical Metering System
1. Fill chemical container and place into console
recess. Attach lid.
2. Open rear cover and turn chemical selection knob
to chemical manufacturers recommended dilution.
3. Press and hold prime button for 30 seconds or until
chemical has filled line to scrub deck.
Normal Scrubbing
Plan the scrubbing pattern in advance. The longest
track is around the perimeter of the area to be cleaned.
For efficient operation, the runs should be the longest
possible without turning, stopping, or raising or
lowering scrub deck/squeegee.
In order to achieve the best possible results, the area
which is to be cleaned should be swept before scrub-
bing. Large debris, strings and wire must be removed
to prevent being caught in brushes or squeegee.
If the machine is allowed to stand in neutral with the
scrub deck down, the solutions flow stops and brush
motors stop. If either forward or reverse travel is
selected, the solution flow will continue in the same
setting and the scrub brush motors will continue in their
same setting once movement of machine begins.
Overlap the brush path and avoid transporting over
previously cleaned areas.
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22
Operations
To Begin Scrubbing
When operating the machine around people, pay
close attention for unexpected movement. Use
extra caution around children.
Lorsque vous utilisez la machine en présence de
gens, portez une attention particulière aux mouve-
ments inattendus. Soyez plus prudent, surtout en
présence d’enfants.
Flammable liquids and/or reactive metals can
cause explosions or fire! Do not pick up.
Les liquides inflammables et / ou les métaux
réactifs peuvent provoquer des explosions ou un
incendie! Ne les ramassez pas.
1. Stand on the operator platform. Throttle pedal
must be in neutral position.
2. Turn machine power on.
3. Press the Drive Reset / Directional Control Switch,
selecting the desired travel direction.
4. Position the function control knob to the desired
operation. The scrub deck and squeegee will
lower, and the vacuum will turn on.
5. Drive machine forward to begin scrubbing. The
scrub brush motors will run and solution will flow
when the throttle is depressed.
NOTE: Shut machine off immediately if water or foam
is expelled from the machine.
NOTE: Solution flow is automatically shut off when
brush motors stop. When brush motors are
activated, flow automatically resumes.
NOTE: The solution flow can be adjusted up or down
approximately 10 percent by changing the dip switch
settings on the control board. The dip switches are
located on the left side of the control board, mounted
on the lower control panel.
To Stop Scrubbing
1. Rotate the function knob to either transport posi-
tion. The brush motors will stop and the scrub deck
will rise to the park position. After 10 seconds the
squeegee will raise, and 10 seconds later the vac-
uum motor will turn off. This delay is to clear the
vacuum hose of recovered solution.
2. Allow the throttle pedal to return to neutral.
3. Turn machine power off.
FOR SAFETY: Before leaving or servicing
machine: stop on level surface, turn off machine
and remove key.
Double Scrub
For floors which are heavily soiled or have thick accu-
mulations of floor finish, may not clean sufficiently with
one pass. In these cases it may be necessary to double
scrub.
Rotate the knob to the double scrub position.
Make the first pass over the surface being cleaned with
the squeegee up, vacuum off and the solution on. For
best results also remove the Aqua-mizer™, this will
allow the solution to stay in contact with the soil while
loosening the surface accumulation with the brushes.
Allow time for the first application to stay in contact with
the floor. Length of time between the first and second
pass depends on amount of accumulation and the type
of chemical being used. A second scrubbing with the
function knob in one of the normal scrubbing modes will
lower the squeegee and will keep the solution on and
NOMINAL
OFF OFF
12
+ 20%
ON OFF
12
- 20%
OFF ON
12
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23
Operations
brushes down to further loosen soil. The additional
application of solution will further assist the difficult
cleaning job.
FOR SAFETY: When using machine, go slow on
inclines and slippery services.
Emptying and Cleaning Tanks
1. Park the machine next to a floor drain. Drain hoses
are at the front of the machine.
2. Turn the machine power off.
Recovery Tank
1. Open the recovery tank lid. Pull the recovery drain
hose from the mounting bracket. Open cap, then
lower hose in direction of the drain. Do not stand in
front of end of hose. Recovered solution will come
out with force.
2. Flush the recovery tank out with clean water. Do
not use water hotter than 140°F (60°C) to clean
tank. Damage may occur.
3. Clean debris bin.
4. Clean off the float shut-off system and inspect for
free movement of float.
5. Replace the drain hose cap and secure drain hose.
6. If machine is to be stored, leave the recovery tank
lid propped open.
Solution Tank
1. Remove the recovery tank lid.
2. Pull the solution drain hose from its mounting
pocket. Unscrew the cap, then lower hose in direc-
tion of drain.
3. Remove the solution tank cap.
4. Flush the solution tank out with clean water and
run several gallons of clean water through sys-
tems. Do not use water hotter than 140°F (60°C) to
clean tank. Damage may occur.
5. If machine is to be stored, leave solution cap off.
NOTE: Never allow solution to remain in tank.
Damage to tank, seals and valves could occur.
Optional Chemical Metering System
1. Remove chemical container from machine and
store unused chemical. Flush chemical container
with water.
2. Fill chemical container partway with clean water.
Press and hold prime button for 1 minute.
3. Empty chemical container. press and hold prime
button for 30 seconds to purge chemical lines.
Chemical Metering Controls
1. CHEMICAL METERING SYSTEM SELECTION
DIAL (OPTIONAL)
Eight position dial which controls chemical system
operation. Upper five positions turn chemical
system on and controls dilution from .5 to 4.0 oz/
gal. Three lower positions turn chemical system
off.
2. CHEMICAL METERING SYSTEM PRIME
BUTTON (OPTIONAL)
Runs chemical pump when pressed. Press for 30
seconds to prime empty chemical system. Fill
chemical reservoir with clean water and press
prime button for one minute to flush chemical
system.
Solution Drain
Hose
Recovery Drain
Hose
Recovery Tank
Lid
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24
Operations
Squeegee Disk
1. Squeegee Handle
The squeegee handle holds the squeegee in place.
2. Squeegee Hose and Tube
The squeegee hose and tube carry the recovered solution to the recovery tank.
3. Squeegee Wheels
The squeegee wheels support the squeegee at the correct height and angle to automatically obtain optimum
suction. The squeegee requires no adjustment.
1
2
3
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25
Operations
Squeegee - Cylindrical
1. Squeegee Knobs
The squeegee knobs hold the squeegee in place.
2. Squeegee Hose and Tube
The squeegee hose and tube carry the recovered solution to the recovery tank.
3. Squeegee Wheels
The squeegee wheels support the squeegee. The height can be adjusted by turning the knobs.
12
3
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26
Notes
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27
Maintenance
Service Schedule
MAINTENANCE BEFORE EACH
WORK PERIOD AFTER EACH
WORK PERIOD 50
HRS 100
HRS 200
HRS
Check water level of batteries after charging; add
distilled water if necessary. (Wet cell only) *
Check that recovery lid seals tightly. *
Visually check for damaged or worn wheels. *
Check brushes or pads for proper installation. *
Check vacuum hose connections. *
Check that squeegee is securely attached. *
Check for securely attached drain hoses, plug and cap. *
Check pedal, brake and steering for proper operation. *
Clean out recovery tank and debris bin. *
Clean and inspect float shutoff. *
Clean out solution tank. *
Clean and inspect solution filter strainer. *
Run vacuum motors to dry. *
Clean brushes or pads and check wear. *
Clean squeegee blades and check wear. *
Clean outside of tanks, check for damage. *
Store with recovery lid propped open. *
Charge batteries if needed. *
Flush chemical system (if equipped). *
Clean off top of batteries. *
Check battery cells with hydrometer. (Wet cell only) *
Inspect scrub deck skirts and Aqua-Mizers. *
Check battery connections are tight. *
Clean battery cases and battery compartment. *
Check parking brake. *
Clean cables and pulleys for squeegee lift. *
Clean pivot points on squeegee and scrub deck. *
Check all motors for carbon brush wear. *
Check motor commutators. *
Check steering chain tension. *
Check chemical pump peristaltic tube *
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28
Maintenance
Batteries
1. Rear Cover Latch
2. Rear Cover
3. Battery Connector-Machine
4. Battery Connector-Battery
5. Batteries
6. Battery Tray Liner
7. Battery Tray
86395370 Operator Manual - Chariot 3 iScrub 26
1
2
3
5
7
6
4
29
Maintenance
Batteries (Wet Cell Only)
The batteries provide the power to operate the
machine. The batteries require regular maintenance to
keep them operating at peak efficiency.
The machine batteries will hold their charge for long
periods of time, but they can only be charged a certain
number of times. To get the greatest life from the
batteries, charge them when their charge level reaches
25% of a full charge. Use a hydrometer to check the
charge level.
Do not allow the batteries to remain in a discharged
condition for any length of time. Never expose a
discharged battery to temperatures below freezing.
Discharged batteries will freeze causing cracked
cases. Do not operate the machine if the batteries are
in poor condition or if they have a charge level below
25% (specific gravity below 1.155).
Keep all metallic objects off the top of the batteries, as
they may cause a short circuit. Replace worn or
damaged cables and terminals.
Check the electrolyte level in each battery cell before
and after charging the batteries. Never add acid to the
batteries, use distilled water. Do not allow water level
to fall below the battery plates. Portions of plates
exposed to air will be destroyed. Do not overfill. Keep
plugs firmly in place at all times.
When servicing machine, avoid contact with
battery acid.
Lors de l'entretien de la machine, évitez tout
contact avec l'acide de batterie.
Batteries emit hydrogen gas. Explosion or fire can
result. Keep sparks and open flame away. Keep
covers open when charging.
Les batteries émettent du gaz hydrogène. Une
explosion ou un incendie peut en résulter.
Maintenez les étincelles et les flammes nues à
l’écart. Gardez les carters ouverts lors du charge-
ment.
Wear eye protection and protective clothing when
working with batteries.
Portez des lunettes de protection et des vêtements
de protection lorsque vous travaillez avec des
batteries.
Charge batteries in a well ventilated area.
Chargez les batteries dans un endroit bien ventilé.
Battery Maintenance
1. When cleaning the batteries, use a solution of
baking soda and water. Do not allow the cleaning
fluid to enter the battery cells, electrolyte will be
neutralized.
2. Maintain the proper electrolyte level in each battery
cell. If a cell should accidentally overflow, clean
immediately.
3. Wipe off the top of the batteries at least once a
week.
4. Test battery condition with a hydrometer at least
once a week.
5. Ensure that all connections are tight and all
corrosion removed.
6. Every 4 to 6 months, remove that batteries from
the machine and clean the battery cases and
battery compartment.
Not all batteries require maintenance. AGM
batteries are maintenance free. Do not attempt to
remove sealed caps from AGM batteries. Warranty
is void if caps are removed from AGM battery.
L’entretien n’est pas nécessaire pour toutes les
batteries. Les batteries AGM ne nécessitent pas
d’entretien. N'essayez pas d'enlever les bouchons
scellés des batteries AGM. La garantie est annulée
si les bouchons sont retirés des batteries AGM.
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30
Maintenance
Checking Battery Specific Gravity
Use a hydrometer to check the battery specific gravity.
CHECKING GRAVITY
a. Hydrometer Battery
b. Battery
NOTE: Do not take readings immediately after adding
distilled water, if the water and acid are not thoroughly
mixed, the reading may not be accurate.
Check the hydrometer readings against this chart.
NOTE: If the readings are taken when the battery
electrolyte is any temperature other than 80°F (27°C),
the reading must be temperature corrected.
To find the corrected specific gravity reading when the
temperature of the battery electrolyte is other than 80°F
(27°C): Add (+) to the specific gravity reading 0.004 (4
points), for each 10°F (6°C) above 80° (27°C). Subtract
(-) from the specific reading 0.004 (4 points), for each
10°F (6°C) below 80°F (27°C).
Charging Batteries
When servicing machine, avoid contact with
battery acid.
Lors de l'entretien de la machine, évitez tout
contact avec l'acide de batterie.
Batteries emit hydrogen gas. Explosion or fire can
result. Keep sparks and open flame away. Keep
covers open when charging.
Les batteries émettent du gaz hydrogène. Une
explosion ou un incendie peut en résulter.
Maintenez les étincelles et les flammes nues à
l’écart. Gardez les carters ouverts lors du charge-
ment.
Wear eye protection and protective clothing when
working with batteries.
Portez des lunettes de protection et des vêtements
de protection lorsque vous travaillez avec des
batteries.
Charge batteries in a well ventilated area.
Chargez les batteries dans un endroit bien ventilé.
Switch main circuit breaker off before charging.
SPECIFIC GRAVITY
@ 80
F (27
C) BATTERY CONDITION
1.265 100% CHARGED
1.225 75% CHARGED
1.190 50% CHARGED
1.155 25% CHARGED
1.120 DISCHARGED
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31
Maintenance
Use a 36 volt, 20 amp maximum output DC charger
which will automatically shut off when the batteries are
fully charged.
1. Stop the machine in a clean, well ventilated area
next to the charger.
2. Turn “OFF” machine.
FOR SAFETY: Before leaving or servicing
machine; stop on level surface, turn off machine
and remove key.
3. Open rear cover, unplug batteries from machine,
unlatch battery tray and pull out to expose
batteries.
Batteries emit hydrogen gas. Explosion or fire can
result. Keep sparks and open flame away. Keep
covers open when charging.
Les batteries émettent du gaz hydrogène. Une
explosion ou un incendie peut en résulter.
Maintenez les étincelles et les flammes nues à
l’écart. Gardez les carters ouverts lors du charge-
ment.
4. Check the electrolyte level in each battery cell.
Before charging, add just enough distilled water to
cover the plates. After charging is complete, add
just enough distilled water to bring up the level to
the indicator ring. If the water level is too high
before charging, normal expansion rate of the elec-
trolyte may cause an overflow resulting in a loss of
battery acid balance and damage the machine.
5. Replace the battery caps, and leave them in place
while charging.
FOR SAFETY: When charging, connect the charger
to the batteries before connecting the charger to
the AC wall outlet. Never connect the charger to
the AC wall outlet first. Hazardous sparks may
result.
6. Plug the charger connector into the battery
connector. Connect the charger AC plug to a wall
outlet. The charger gauge should indicate that the
batteries are charging.
7. When the batteries are fully charged, disconnect
the charger from the AC wall outlet, then discon-
nect the charger from the batteries.
8. Connect the batteries to the machine connector.
9. Check the electrolyte level. It should be up to the
indicator ring. If necessary, add distilled water.
10. Close the rear cover.
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32
Maintenance
Changing Batteries
Stop the machine in a clean area next to the charger.
Turn off machine.
FOR SAFETY: Before leaving or servicing the
machine; stop on level surface, turn off machine
and remove key.
1. Remove the rear cover.
2. Disconnect battery pack from machine.
3. Unlatch battery tray from machine and pull out to
expose batteries.
4. Use the proper size open end wrench to discon-
nect main ground wire first and secure cable
terminal away from batteries.
5. Disconnect main positive lead and secure cable
terminals away from batteries.
6. Loosen both terminals on each jumper cable and
remove one at a time.
7. Prepare a suitable site to place the batteries.
Attach suitable battery lifting device and lift
batteries from the machine. Batteries are a
potential environmental hazard. Consult your
battery supplier for safe disposal methods.
Fixez le dispositif de levage de batterie approprié et
levez les batteries de la machine. Les batteries
constituent un danger potentiel pour l'environne-
ment. Consultez le fournisseur de votre batterie
pour connaître les méthodes d'élimination sûres.
86395370 Operator Manual - Chariot 3 iScrub 26
REAR OF MACHINE
+
--
++
-
RED
BLK
RED
BLK
RED
BLK
33
Maintenance
Onboard Charger (Optional)
Circuit Breaker must be off before unplugging
batteries.
Onboard Charger Programming
For machines equipped with optional on-board charger.
When replacing batteries, charger programming
changes may be required. If replacing batteries with
same type, (e.g. maintenance free batteries with main-
tenance free) no programming is required. When
batteries with different type (e.g.maintenance free with
wet cell), programming change are required. Failure to
make programming changes may lead to reduced
battery life.
1. Remove upper control panel.
2. Peel back label on charger to access dip switches.
3. Change switches to correct battery type.
4. Replace charger label and install upper control
panel.
1234 5678
DIP DIP DIP DIP DIP DIP DIPDIP
LEAD ACID
DISCOVER AGM
OFF ON ON OFF ON ON OFFON
ON OFF OFF OFF ON ON OFFOFF
86395370 Operator Manual - Chariot 3 iScrub 26
34
Maintenance
Squeegee - Disk
1. Squeegee
2. Squeegee Retainer Knob
Squeegee - Cylindrical
1. Squeegee
2. Squeegee Retainer Knob
1
2
86395370 Operator Manual - Chariot 3 iScrub 26
1
2
35
Maintenance
Squeegee Blades
The front squeegee blade allows solution to pass
through channels in the blade into the squeegee
assembly while maintaining vacuum to provide lift. The
front blade has four wear surfaces and can be rotated
for extended life. The front blade should not require
regular replacement under normal use. The squeegee
is self adjusting.
The rear blade wipes the floor to a near dry condition. It
is important the rear blade be in good condition to
properly do its job. As with the front, each squeegee
blade assembly has four wear surfaces for extended
service.
Check both the front and rear squeegee blades for
damage and wear each day in the pre-run check.
Change the front blade if it is torn or has an uneven
edge. Change the rear blade if it is less than half the
original thickness.
To Remove Squeegee Assembly
FOR SAFETY: Before leaving or servicing machine;
stop on level surface, turn off machine and remove
key.
1. With the squeegee in the up position, turn key
switch "OFF".
2. Disconnect vacuum hose from squeegee and
loosen retainer knob on left side of squeegee lifting
carrier.
3. Pull squeegee assembly from the lifting carrier.
4. Inspect or repair as necessary and reinstall.
To Replace or Rotate Squeegee Blades -
Disk
1. With the squeegee in the up position, turn key
switch "OFF".
2. Remove the squeegee assembly from the
machine.
3. Unscrew each of the four knobs until they are
nearly removed from the squeegee assembly.
Grasp the squeegee assembly and push on the
knobs to remove the blade retention plate.
Remove the knobs and pull the retention plate out.
4. Remove blades from squeegee housing. Rotate
the squeegee blade to a new edge position or
replace as required. Each blade has four new edge
positions.
5. Install the blades in the squeegee housing by
hooking blades on retention features.
6. Install blade retention plate in squeegee housing
and assemble knobs.
To Replace or Rotate Squeegee Blades -
Cylindrical
1. With the squeegee in the up position, turn key
switch "OFF".
2. Remove end-cap from squeegee assembly.
3. Pull blades out of Squeegee.
4. Rotate or Replace squeegee blades and insert into
squeegee assembly.
5. Replace end-cap on squeegee assembly.
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36
Maintenance
Scrub Deck - Disk
1. Scrub Deck Aqua-mizer™
2. Aqua-mizer™ Retainer Knob
3. Scrub Deck Skirt
4. Scrub Deck Skirt Brush Strip
5. Scrub Brush Motor
6. Scrub Deck Lift Actuator
86395370 Operator Manual - Chariot 3 iScrub 26
1
35
6
2
4
37
Maintenance
Scrub Brushes
There are four different types of brushes available to
cover applications from cleaning heavily soiled floors to
polishing. A pad driver is also available to take
advantage of the many cleaning pads on the market.
Please refer to the following to assist in selecting the
proper brush or pad for the work at hand.
Uncoated Floors
Aggressive Grit is a nylon fiber impregnated with
silicone carbide grit. It grinds away stain, soil, and
removes surface material.
Mild Grit is a less aggressive silicone carbide grit
suitable for cleaning medium soil conditions. Advan-
tages are faster ground speed than nylon bristles on
light solid applications.
Polypropylene is a general-purpose scrub brush with
stiff bristles. Polypropylene works well for maintaining
concrete, wood and tile floors.
Finished Floors
Nylon bristles are used in a variety of applications on
coated or uncoated surfaces.
White Pads (Polishing) are used for dry polishing to
achieve a high-gloss appearance, or surface washing
on highly polished or burnished floors.
Red Pads (Buffing) are used for light-duty scrubbing.
When used with a mild detergent they will provide
surface cleaning without removing the finish.
Blue Pads (Scrubbing) are used for heavy-duty
scrubbing and light stripping. The blue pads remove
less finish than brown stripping pads, yet will remove
black marks, stains and dirt.
Black Pads (Stripping) are used for easy and complete
removal of old floor waxes/finishes. They will quickly
remove ground in dirt, black heel marks, and spills.
When used with the proper stripper, this pad leaves the
floor clean and ready for finishing.
The scrub brushes should be checked before each
days work for wire, string, wear and damage.
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38
Maintenance
Replacing or Installing Scrub Brushes -
Disk
FOR SAFETY: Before leaving or servicing the
machine; stop on level surface, turn OFF machine
and remove key.
1. Turn machine power off.
2. Open access cover on deck shroud.
3. Locate release lever, press release lever towards
front of machine to release brush pad. The pad will
drop down when released. Lift deck shroud up and
slide brush/pad assembly out.
4. Remove brush/pad from holder and replace with
new brush/pad.
5. To reinstall, lift deck shroud upward as shown.
Center the brush/pad driver under the brush drive
hub. Raise brush/pad until it contacts brush driver
assembly. Turn clockwise until release lever plate
locks into position.
6. Check that release lever/plate is completely closed
and pad/brush is securely attached.
NOTE: Damage to driver or brush could occur if not
securely attached.
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39
Maintenance
Do not use a pressure washer to clean around the
brush motors. Use tap pressure only.
N’utilisez pas de nettoyeur haute pression pour
nettoyer autour des moteurs des brosses. Utilisez
seulement la pression du robinet.
To Replace Scrub Brush Motors
With the scrub deck in the raised position, disconnect
brush motor wiring connector from harness.
1. Remove skirt from scrub deck.
2. Remove retaining bolt, lock washer, flat washer
and star drive from brush motor shaft.
3. Remove 4 brush motor mounting bolts located
under scrub deck.
4. Lower scrub deck.
5. Remove brush motor.
6. Reverse steps to install.
Brush Motor Carbon Brush Replacement
1. Scribe alignment mark on motor barrel to motor
cap. Remove two bolts.
2. Remove end cap from motor.
NOTE: Motors contain two wave washers in cap. Do
not lose these.
3. Release brush from spring tension. Remove screw
connecting brush wire lead to brush holder. Clean
brush holder to insure free movement.
4. Retract spring and install new brush. Install
connector screw and lead.
5. When all new brushes are installed. Place all in
retracted position, held into brush holder by spring
tension.
6. Carefully place end cap onto bearing on motor
shaft.
NOTE: Use care to assure wave washer alignment.
7. With end cap in partially installed position, release
all brushes to contact position with motor commu-
tator.
NOTE: Failure to insure all brushes are released will
result in motor failure.
8. Reset end cap and realign with scribe marks on
motor barrel. Reinstall the two attach bolts from
cap into base.
Maintain alignment between motor barrel base and
cap.
86395370 Operator Manual - Chariot 3 iScrub 26
40
Maintenance
Scrub Deck - Cylindrical
1. Scrub Deck Skirt
2. Debris Hopper
3. Scrub Deck Lift Actuator
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3
2
41
Maintenance
Replacing or Installing Scrub Brushes -
Cylindrical
1. Turn machine function dial to transport mode,
allowing deck to return to “up” position. Turn the
machine power off.
FOR SAFETY: Before leaving or servicing the
machine; stop on level surface, turn OFF machine
and remove key.
2. On right and left sides of deck, turn both brush and
skirt releases 1/4 turn counter-clockwise.
3. Swing deck skirts out. Remove brush end caps.
Slide brushes out the sides of deck.
4. To reinstall, slide brushes into deck. Replace
brush end caps. Lift end cap up and turn brush
release 1/4 turn clockwise, locking brush in place.
Swing deck skirt back to deck. Turn skirt release
1/4 turn clockwise, locking skirt into place.
NOTE: Check that brush end cap is properly secured
into deck housing. Check that brush is suspended off
ground while deck is in “up” position.
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42
Maintenance
Actuator Scrub Deck Removal /
Replacement
FOR SAFETY: Before leaving or servicing machine,
stop on a level surface. Turn off machine.
1. Remove the two screws that secure actuator
spring plate and pull actuator barrel from stud on
actuator spring bracket.
2. Remove clevis pin from upper bracket of actuator.
3. Disconnect actuator from wiring harness.
4. Reverse steps to install.
Scrub Deck Actuator Adjustment
The actuator will need to be adjusted when replaced.
To adjust the actuator:
1. While holding actuator barrel to prevent it from
spinning, apply power to the actuator such that it is
fully extended. Positive power to white wire, and
negative/ground to black. Limit switch within
actuator will stop it.
2. Turn barrel out one or more full turns to assure that
when it is retracted it will not bind against itself.
3. While holding actuator barrel to prevent it from
spinning, apply power to the actuator such that it is
fully retracted. Positive power to black wire, and
negative/ground to white wire. Limit switch within
actuator will stop it.
4. With actuator fully retracted, turn barrel in until it
touches the base of the threaded shaft.
5. At the bottomed out position, turn the barrel one full
turn, then enough more to allow connection to lift
linkage.
6. Connect actuator to lift linkage.
7. Check travel of actuator during operation.
86395370 Operator Manual - Chariot 3 iScrub 26
43
Maintenance
Circuit Protection
Circuit Breakers
1. MAIN CIRCUIT BREAKER
Interrupts the flow of power from batteries in the event of an electrical overload. When the circuit breaker is
tripped, it can be reset by pressing the toggle switch. If the circuit breaker continues to trip, the cause of the
electrical overload must be corrected.
1
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44
Maintenance
Solution
1. Strainer
2. Solution Cap
3. Solenoid Valve
4. Chemical Bottle (Optional)
5. Chemical Pump (Optional)
6. Flow Meter (Optional)
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3
4
5
6
2
45
Maintenance
Solution Strainer
Located in bottom of tank. Protects system from debris.
Solenoid Valve
The solenoid valve is mounted on the front of the scrub
deck, on left side. The solenoid valve opens and closes
to meter the correct amount of solution to the scrub
deck.
The solenoid valve shuts off solution flow to scrub deck
whenever scrubbing stops. To repair or replace
solenoid valve, remove screws that secure it to deck.
Chemical Bottle (Optional)
Holds chemical for optional metering system.
Chemical Pump (Optional)
Located in front of operator platform on left side. Pump
meters chemical into water flow from solution tank.
Flow Meter (Optional)
Located front left side of machine. Measure water flow
being delivered to scrub deck for accurate chemical
dilution.
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46
Maintenance
Vacuum
1. Recovery Tank Float Shut-off
2. Vacuum Motor
3. Debris Bin
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2
3
47
Maintenance
Recovery Tank Float Shut-off
When water is no longer being vacuumed from the floor
and the vacuum fan is operating, the ball float has
engaged. The vacuum motor will not vacuum water
with recovery tank full. The recovery tank must be
drained.
1. The float shut-off screen can be cleaned in or out
of the machine.
2. To clean the float shut-off while it is inside the
machine wipe material off screen then rinse. Check
that the ball is also clean and moves freely.
3. To remove the float shut-off, tilt and pull the float
screen assembly off the tank fitting barb.
4. To install, tilt and push the float screen assembly
over the tank fitting barb.
FOR SAFETY: Before leaving or servicing
machine, stop on a level surface, turn off machine
and disconnect power.
To Repair or Replace Vacuum Motor
1. Remove rear cover from machine.
2. Remove upper control panel.
3. Remove three screws on lower panel and hinge
panel down.
4. Disconnect electrical connector from the vacuum
motor.
5. From topside, remove one nut in front of vacuum
motor.
6. From backside, support vacuum motor and remove
two remaining nuts on vacuum housing.
7. Lower vacuum motor, remove front rubber isolator
from stub. Pull vacuum motor and upper housing
out of machine. Lower housing and hoses stay with
machine.
8. Remove upper housing from vacuum motor by
removing four screws.
9. Reverse steps to install. Make sure that gasket is
on vacuum so that vacuum seals against tank.
3
8 [9.5mm]
Vacuum Motor Carbon Brushes
Carbon
Brushes
End Cap
If armature commutator is grooved, extremely pitted or not
concentric, the motor will need to be replaced or sent to a
qualified service center.
Inportant:
These brushes wear quicker as the length shortens due to
increased heat. Spring inside brush housing will damage
motor if brushes are allowed to wear away completely.
Periodically check the length of the carbon brushes. Replace
both carbon brushes when either is less tan 3/8" (9.5mm)
long.
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48
Maintenance
Drive Motor
1. Drive Motor
2. Parking Brake
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49
Maintenance
Electric Parking Brake Engagement
FOR SAFETY: Before leaving or servicing machine,
stop on a level surface, turn off machine and
remove key.
Electric Brake Engagement
This machine is equipped with an electric parking
brake.
The brake automatically engages and keeps the
machine from moving whenever the operator steps off
the platform or when emergency stop is engaged.
The brake has a mechanical over-ride that can be
engaged so machine can be pushed or towed (slowly).
To disengage brake:
1. Pull lever away from brake housing.
2. Insert material to hold brake lever in place.
Do not operate machine with brake disengaged.
N'actionnez pas la machine avec le frein désen-
gagé.
Drive Motor Carbon Brush Replacement
Do not use a pressure washer to clean around the
motors. Use tap pressure only.
N’utilisez pas de nettoyeur haute pression pour
nettoyer autour des moteurs des brosses. Utilisez
seulement la pression du robinet.
FOR SAFETY: Before leaving or servicing machine,
stop on a level surface, turn off machine and
remove key.
1. Disconnect batteries from machine.
2. Remove brush caps from motor housing.
3. Replace brushes.
4. Install brush caps to motor housing.
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50
Maintenance
Transporting
Pushing Machine
The machine may be pushed for short distances at
speeds not to exceed 5 mph. Be careful to avoid
damaging machine. The machine may be pushed by
hand from the rear.
NOTE: To avoid damage caused by regenerative
voltage, disconnect traction motor before towing or
pushing machine.
Machine Tie-Downs
There are four tie down points, two on the front wheel
guards, and two on the rear axle located on either side
of the foot box.
Preparation for Loading/Unloading Trailer
Before loading or unloading machine from trailer,
remove squeegee, scrub deck, side skirts or side
squeegees, Aqua-Mizers and scrub brushes (pads) to
eliminate interference with tie-downs.
Scrub head must be in the up position before loading.
When transporting the machine on a trailer or in a truck,
in addition to using tie-downs, be sure to set the parking
brake, and block the tires to prevent the machine from
rolling
86395370 Operator Manual - Chariot 3 iScrub 26
Tie down point
Tie down point
Wheel Guards Rear Axle
(Both sides) (Both sides)
51
Notes
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52
Maintenance
Troubleshooting
PROBLEM CAUSE SOLUTION
No power to machine Battery disconnected Check all battery cable connections
Emergency shut-off activated Reset
Battery cables corroded Clean connections
Faulty key switch Replace switch
On board charger plugged in Unplug and stow cord
Main circuit breaker tripped Reset circuit breaker
Little or no propel Low battery charge Charge batteries
Machine turned on with pedal not in neutral
position Allow pedal to return to neutral. Restart.
Tripped circuit breaker Reset circuit breaker
Wheels spin Decrease brush pressure
Controller overheated Allow cool down period
Loose motor connection Check wires and connections from
controller to motor
Faulty throttle circuit or potentiometer Check wires and connections from and
potentiometer resistance
Faulty drive reset circuit or switch Check wires, connections and switch
Faulty platform circuit or switch Check wires, connections and switch
Machine does not
change speeds Faulty speed control circuit or switch Check wires & connections
Forward speed only
Reverse speed only Faulty forward/reverse circuit Check wires & connections
Poor or no water pickup Debris caught on squeegee Remove debris
Worn squeegee blades Rotate or replace squeegee blades
Vacuum hose clogged Clear obstruction from hose
Vacuum hose disconnected from squeegee
or recovery tank dome Reconnect vacuum hose
Recovery tank float system dirty Clean float system
Recovery tank not sealed Latch recovery tank lid to tank. Replace
damaged gaskets
Float-ball shut-off engaged, tank full Empty recovery tank
Foam filling recovery tank Empty recovery tank. Use less or different
detergent. Use defoamer.
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Maintenance
PROBLEM CAUSE SOLUTION
Vacuum motor does not run, or
runs slowly Faulty vacuum circuit or switch Check wires connections and motor
Worn vacuum motor brushes Replace brushes, check commutator
Squeegee will not go up/down Faulty circuit or actuator Check wires, connectors and actuator
Faulty cables or pulleys Repair/replace cables or pulleys
Poor scrubbing performance Debris caught in scrub brushes Remove debris
Worn brushes or pads Replace brushes or pads
Improper detergent, brush or pad used Contact equipment or application
specialists
Low battery charge Charge batteries
Little or no solution flow to the
floor Solution tank empty Fill solution tank
Solution strainer plugged Clean solution strainer
Solution system plumbing obstructed Clear obstruction from plumbiing
Solution solenoid valve obstructed or
faulty Repair or replace solenoid valve
Brush motors do not run, or run
slowly Low battery charge Charge battery
Faulty brush circuit or motor Check wires, connections and motor
Worn brush motor brushes Replace brushes, check commutator
Scrub deck goes down, then
raises Faulty actuator circuit or actuator Check wire connections and actuator
No brushes or pad drivers on machine Install brushes or pad drivers
Chemical Reservoir empty Fill reservoir
Chemical Cap Strainer clogged Clean strainer
Chemical Metering System does
not operate Chemical System plumbing obstructed Clear obstruction
Faulty Flow Meter Press prime button. If chemical flows,
Repair/replace flow meter.
Faulty Chemical Pump Press prime button. If chemical does
not flow, repair/replace pump.
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Maintenance
Controller Fault Codes
ERROR CODE
DELUXE PROBLEM SOLUTION
TRACTION MOTOR AND
CONTROLLER ERROR
THE BATTERY NEEDS CHARGING OR THERE IS A BAD
CONNECTION FROM THE BATTERY TO THE TRACTION
CONTROLLER. CHARGE BATTERY OR CALL FOR SERVICE
AND HAVE TECHNICIAN CHECK WIRING.
TRACTION MOTOR
DISCONNECTED THE TRACTION MOTOR HAS A BAD CONNECTION. CALL
FOR SERVICE AND HAVE TECHNICIAN CHECK WIRING.
TRACTION MOTOR SHORT
CIRCUIT
THE TRACTION MOTOR HAS A SHORT CIRCUIT TO THE
BATTERY. CALL FOR SERVICE AND HAVE TECHNICIAN
CHECK FOR SHORT CIRCUIT.
AUX FAULT or
ACTUATOR (DECK or SQUE)
OVERCURRENT
CALL FOR SERVICE AND HAVE TECHNICIAN CHECK AUX
OUTPUT DEVICES AND ASSOCIATED WIRING.
VACUUM MOTOR TRIP THE VACUUM MOTOR HAS EXCESSIVE CURRENT. CALL
FOR SERVICE AND HAVE TECHNICIAN CHECK FOR SHORT
CIRCUIT OR OTHER DAMAGE.
BRUSH MOTOR TRIP THE BRUSH MOTOR HAS EXCESSIVE CURRENT, CALL FOR
SERVICE AND HAVE TECHNICIAN CHECK FOR SHORT
CIRCUITS, PADS OR OTHER DAMAGE.
THROTTLE TRIP ERROR
THE THROTTLE IS DEFLECTED OR ASSOCIATED WIRING
HAS A BREAK OR SHORT CIRCUIT. CALL FOR SERVICE AND
HAVE TECHNICIAN CHECK THROTTLE AND ASSOCIATED
WIRING.
CONTROL SYSTEM TRIP THE TRACTION CONTROL SYSTEM IS IN ERROR. CALL FOR
SERVICE AND HAVE TECHNICIAN CHECK ALL
CONNECTIONS TO THE CONTROLLER.
SOLENOID BRAKE THE BRAKE SOLENOID HAS A BAD CONNECTION. CALL FOR
SERVICE AND HAVE TECHNICIAN CHECK CONNECTIONS
TO THE BRAKE.
HIGH BATTERY VOLTAGE EXCESSIVE BATTERY VOLTAGE, CALL FOR SERVICE AND
HAVE TECHNICIAN CHECK BATTERY CONDITION.
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Maintenance
ERROR CODE
DELUXE PROBLEM SOLUTION
MACHINE IS NOT REPORTING
TO KÄRCHER FLEET
MACHINES WITH KÄRCHER FLEET SUPPORT, CALL FOR
SERVICE.
MACHINES WITHOUT KÄRCHER FLEET SUPPORT, NO
ACTION REQUIRED.
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56
Suggested Spare Parts - Disk
86395370 Operator Manual - Chariot 3 iScrub 2686395370 Operator Manual - Chariot 3 iScrub 26
86361670
BLADE, AQUAMIZER, RH
86361680
BLADE, AQUAMIZER, LH
86359590
WHEEL
86359570
BLADE, SQUEEGEE REAR
86359580
BLADE, SQUEEGEE, FRONT
86354270
HOSE, RECOVERY
86353950
HOSE, SOLUTION DRAIN 86362390
CASTER
86161800
LATCH
86335520
WHEEL
86008710
RING
86232130
CAP
66132310 CARBON BRUSH SET
DRIVE WHEEL MOTOR
86326980 CARBON BRUSH SET
VACUUM MOTOR
86368290 BRUSH SET
DISK SCRUB DECK MOTORS
57
Suggested Spare Parts - Cylindrical
86395370 Operator Manual - Chariot 3 iScrub 2686395370 Operator Manual - Chariot 3 iScrub 26
86354270
HOSE, RECOVERY
86353950
HOSE, SOLUTION DRAIN
86161800
LATCH
86335520
WHEEL
86008710
RING
63212390
STAR GRIP
86232130
CAP
50942310
SLEEVE
55153460
DEFLECTOR ROLL
62732070 RUBBER LIP - OIL RESISTANT
28852940
END PIECES
62732900 RUBBER LIP - STANDARD
62732290 RUBBER LIP - ANTI STRIPE OIL RESISTANT
69069350 ROLLER BRUSH - RED
69069810 ROLLER BRUSH - WHITE
69069820 ROLLER BRUSH - ORANGE
69069830 ROLLER BRUSH - GREEN
69069840 ROLLER BRUSH - BLACK
66102160 CARBON BRUSH SET
CYLINDER BRUSH DECK MOTOR
66132310 CARBON BRUSH SET
DRIVE WHEEL MOTOR
86326980 CARBON BRUSH SET
VACUUM MOTOR

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