Electrolux AR 4090 User manual

Operating instruction
MANUAL
AR 4090 EASY
AR 4100 EASY
AR 4095 FREE SCRUB
S31EUK4090SY(2)99-01

S31EUK4090SY(2)99-01
LIST OF CONTENTS
INTRODUCTION/GENERAL INSTRUCTIONS/SAFETY .............................................................. 1
UNPACKING .................................................................................................................................. 2
NOTES FOR THE USE OF MODEL AR 4095 FREE SCRUB ................................................. 2
TECHNICAL DATA ........................................................................................................................ 3
DESCRIPTION OF COMMANDS AND CONTROL PANEL.......................................................... 4
ACTIVATION AND USE OF THE FRONT ELECTRIC BRAKE .................................................... 5-7
PREPARATION OF A NEW MACHINE......................................................................................... 8-13
BATTERY SET UP.................................................................................................................... 8
FILLING THE BATTERY WITH SULPHURIC ACID ................................................................ 9
MOUNTING THE BRUSHES .................................................................................................... 11
MOUNTING THE BRUSHES ON MODEL AR 4095 FREE SCRUB ........................................ 13
FITTING THE SQUEEGEE ....................................................................................................... 13
USE ............................................................................................................................................... 14-20
PRELIMINARY OPERATIONS ................................................................................................. 14
AUTOMATIC USE..................................................................................................................... 15
DESCRIPTION OF THE AUTOMATIC PROGRAMS (P1, P2, P3 AND P4) ............................ 16
MANUAL USE........................................................................................................................... 19
USE OF THE “ECO” BUTTON................................................................................................. 20
ADJUSTMENT OF THE SOLUTION PUMP SPEED................................................................ 20
STOP OF THE FLOW OF THE CLEANING SOLUTION ......................................................... 20
MAINTENANCE ............................................................................................................................. 21-23
BATTERY CHECK AND RECHARGE ..................................................................................... 21
EMPTYING THE DIRT CONTAINER........................................................................................ 22
OTHER MAINTENANCE ISSUES ............................................................................................ 22
USE OF THE PROGRAMMER ...................................................................................................... 24-28
PROGRAMMING THE MACHINE: EXAMPLES ...................................................................... 24
SUMMARY OF ORDINARY MAINTENANCE INTERVENTIONS ................................................. 29
OPTIONAL ACCESSORIES .......................................................................................................... 30
SAFETY FEATURES AND TROUBLE SHOOTING...................................................................... 31
MODEL
SERIAL NUMBER
POWER
EMPTY WEIGHT
TOLD WEIGHT
AMPERE
PROD. NUMBER
MAX AXEL REAR
MAX AXEL FRONT
NOISE LEVEL
PROTECTION
VOLTAGE
LOCALITÀ NOVELLA TERZA 26862 GUARDAMIGLIO -ITALY

S31EUK4090SY(2)99-01
INTRODUCTION
This manual is a guide to the efficient use of the machine and also contains practical information concerning the
functioning, adjustments and user maintenance of your new scrubber/drier. Your machine has been designed and
constructed to ensure maximum performarnce and ease of operation in a wide variety of applications. Before
delivery, the machine has been tested in our factory and by our distributor to ensure that it is delivered to you in
perfect condition. To maintain the machine in this condition and guarantee functioning without problems, it is
essential that the periodic maintenance operations indicated in this manual are properly carried out. Before using the
machine, carefully read this manual and keep it within easy reach for your future reference. Indications of “LEFT” and
“RIGHT” are as seen from the operator position. If you should need any further information concerning the machine,
please do not hesitate to contact either Electrolux Euroclean or our local distributor.
GENERAL SAFETY RULES
The rules below have to be followed carefully in order to avoid damages to the operator and to the machine.
- Read the labels carefully on the machine; Do not cover them for any reason and replace them immediately if
damaged.
- Do not mix different detergents, avoiding harmful odours.
- Do not place any liquid containers onto the machine.
- The storage temperature has to be between +0°C and + 55°C.
- The perfect operating temperature should be between 0° C and 40° C.
- The humidity should be between 30 and 95%.
- Do not use the machine in explosive atmosphere.
- Do not use the machine as a means of transport.
- Do not use acid solutions which could damage the machine.
- Avoid working with the brushes when the machine stands still, in order to prevent floor damages.
- Do not vacuum iflammable liquids.
- In case of fire, use a powder extinguisher. Do not use water.
- Do not strike shelvings or scaffoldings, where there is danger of falling objects.
- Adapt the utilization speed to the adhesion conditions.
- Do not exceed over the limit gradient stated, to avoid conditions of instability (16% max).
- The machine has to carry out simultaneously the operations of washing and drying. Different operations have to be
carried out in areas which are not permitted for the passage of non employed staff. Signal the areas of moist floors
with suitable signs.
- If the machine does not work properly, check by conducting simple maintenance procedures. Otherwise, it is better
to ask for technical service.
-Where parts are required, ask for ORIGINAL spare parts to an agent and/or to an authorized dealer.
- For any maintenance operation take off the battery power supply from the machine.
- Do not take off the pieces which require the use of tools to be removed.
- Do not wash the machine with direct water jets or with high water pressure not with corrosive material.
- Every 200 working hours have a machine check through a service department.
- The machine should not be abandoned, because of the presence of toxic-harmful materials (batteries, oil etc.).This
disposal must be subject to the rules which provide for its scrapping in appropiate centres.
- The machine does not cause any harmful vibrations.
MODIFICATIONS AND IMPROVEMENTS
Electrolux Euroclean aim toward continuous improvement of its machines and reserves the right to carry out
modifications and improvements whenever necessary without being obliged to update machines which have been
sold previously.
SAFETY
You too can avoid accidents.
No accident prevention programme is effective without the total co-operation of the person directly responsible for
the functioning of the machine. The majority of accidents which may occur either during work or transferring the
machine from site to site are caused by the non-observance of the most elementary safety rules. An alert and
cautious operator is the best guarantee against accidents and is more effective than any other part of an accident
prevention programme.
The machine must be switched off and disconnected from its battery before any servicing or adjustment of
operational parts be carried out. Ensure that any assistant is clear of the machine and that covers are closed before
switching on.
During the work pay attention to the people around, especially to children.
INTRODUCTION/GENERAL
INSTRUCTIONS/SAFETY
1

S31EUK4090SY(2)99-01
UNPACKING
Check that you have received the following items
with the machine:
User Manual and Spare Parts List
Electric cables for the connection of the battery
to the machine; electric connector for the battery
charger and fuses.
Hose for tank emptying.
Squeegee.
2
NOTES FOR THE USE OF MODEL AR 4095 FREE SCRUB
The most important difference between model AR 4095 Free Scrub and models AR 4090 e 4100 Easy is in the type
of brushes installed on the machine. In fact model AR 4095 is equipped with cylindrical brushes, whilst the other two
models use traditional disk brushes.
By using the cylindrical brushes the sweeping function can also be carried out, in addition to the normal
scrubbing function . From the use and maintenance point of view model AR 4095 Free Scrub is identical to the
traditional Easy models; in addition the periodical emptying of the dirt container – lodged in the rear side of the brush
compartment - must be done.
It must also be said that the use of the click-Off/click-On button is not necessary for model AR 4095.

S31EUK4090SY(2)99-01
TECHNICAL DATA
3
MODELS AR 4090
EASY
AR 4100
EASY
AR 4095
FR. SC.
Working width (mm) 840 1000 900
Squeegee width (mm) 1130 1280 1130
Automatic click-on/click-off Yes Yes -
Number of brushes and diameter (mm) Nr. 2 - 430 Nr. 2 - 500 -
Cylindrical brushes --
Nr. 2
Diam. 150
Leng. 900
Brushes (RPM) 200 200 700
Brush motor power (W) Nr. 2 x 500 Nr. 2 x 500 Nr. 2 x 450
Brush pressure to the floor (Kg) 10-80 10-90 10-90
Solution tank capacity (lt) 175 200 200
Recovery tank capacity (lt) 180 205 205
Min/max cleaning solution flow (lt/min)
from 1,2 to
9,5
from 1,2 to
9,5 from 1,5 to 9
Suction motor power (W) 1000 1000 1000
Suction depression (mmH
2
O) 2100 2100 2100
Automatic solution dosing Yes Yes Yes
Display for safety codes/voltmeter Yes Yes Yes
Max ramp slope 16% 16% 16%
Drive motor power (W) 1200 1200 1200
Forward speed 1st, 2nd, 3rd (Km/h) 2 - 4 - 7,2 2 - 4 - 7,2 2,5-5-7,2
Reverse speed (Km/h) 333
Front drive wheel diameter (mm) 300 300 300
Rear wheels diameter (mm) 300 300 300
Working voltage (V) 36 36 36
Lenght (mm) 1580 1580 1681
Width (mm) 860 1080 1053
Height (mm) 1290 1370 1366
Weight (batteries not included) (Kg) 375 405 435
Weight (batteries included) 760 790 820
Suggested battery 36 V 320 Ah 36 V 320 Ah 36 V 320 Ah
Max working autonomy 4,5h 4,5h 4,5h

S31EUK4090SY(2)99-01
DESCRIPTION OF COMMANDS AND
CONTROL PANEL
4
CONTROL PANEL FOR
MODEL
AR 4095 FREE SCRUB
1 - Button for selection of display data
2 - Display
3 - Indicator: solution tank empty
4 - Tank emptying pump (optional): On/
Off button and indicator
5 - Indicator: recovery tank full
6 - Buttons and indicators for selection
of automatic working programs
7 - Click-Off indicator
8 - Click-Off/ Click-On button (Not used
on model AR 4095 Free Scrub)
9 - Click-On indicator
10 - Forward speed selection button
11 - Forward speed indicators
12 - Brush pressure increase
13 - Brush pressure decrease
14 - Electrovalves On/Off (Incr./decrease
of solution flow)
15 - Solution pump: On/Off button and
indicator
16 - On/Off of ECO function
17 - Solution flow indicators(electrovalves
On/Off)
18 - Suction motor: On/Off button and
indicator
19 - Brush motors: On/Off button and
indicator
20 - On/Off button and indicator of the
Programming Function
21 - Removable programmer
22 - Additional adjustment of solution flow
23 - Emergency stop button
24 - On/Off master key
25 - Lever for selection of forw./rev.
speed, front light On/Off and horn
26 - Rear brakes pedal
27 - Forw./rev. speed accelerator
28 - Steering wheel
29 - Connector for removable
programmer
NOTE : The On/Off and ECO buttons (16)
enable the corresponding
function when pressed the first
time and disable it when pressed
the second time.
WARNING : The connection/
disconnection of the
removable programmer 21
in/from the connector 29
must be done with the
machine turned Off (master
key 24 in the Off position).
CONTROL PANEL FOR
MODELS
AR 4090 EASY
AR 4100 EASY

S31EUK4090SY(2)99-01
Warning: before using the machine the front
electric brake must be set according to the
folowing instructions.
Push the pedal of the rear mechanical brake
to stop the machine when removing it from
the pallet.
Remove the rubber protection from the elctric
brake on the front drive wheel.
To set the brake scews A and B must be
removed (keep them for further use)
Note: after having removed the two screws it will
not be possible to move/push the machine untill
the battery will have been installed and
activated.
Fit carefully the rubber protection on the brake.
Now the brake is set.
In the event of a failure - on the field - of the
electronic drive control in order to be able to
push the machine it is necessary first to
disengage the electric brake, according to the
following instruction.
ACTIVATION AND USE OF THE FRONT
ELECTRIC BRAKE
A
B
5

S31EUK4090SY(2)99-01
1
2
1
3
ACTIVATION AND USE OF THE FRONT
ELECTRIC BRAKE
To disengage the electric brake follow the
instructions below.
Turn the master key to the Off position.
Remove the right side panel from the machine.
Remove the plastic cover.
Disconnect cable 2 from cable 1.
Note: cable 1 is connected to the brake winding
through a protection fuse (check the fuse).
Remove the protection cap from cable 3 (it is
connected to the 36V battery).
Connect cable 1 to cable 3: the operation of the
brake will be hared.
6

S31EUK4090SY(2)99-01
Now you can push the machine.
If the machine can not yet be moved you have
two further options:
1
st
: to reinstall the two screws removed from the
machine - when new - to set the brake
2
nd
: to remove the complete brake and the brake
pad (three screws and two cables).
ACTIVATION AND USE OF THE FRONT
ELECTRIC BRAKE
7

S31EUK4090SY(2)99-01
PREPARATION OF A NEW MACHINE
BATTERY SET UP
The machine is equipped with a 36 Volt battery.
Depending on the country the machine can be
supplied according to one of the three following
options:
1 - The battery is installed and filled with
electrolyte
2 - The battery is installed and empty (without
electrolyte)
3 - The battery is not supplied.
Lift the seat of the machine - forward - to get
access to the battery compartment and check
which option is applied.
If the machine is equipped with the battery open
one of the battery cell caps to see if the battery is
filled or not with electrolyte.
1 - If the battery is filled with electrolyte:
1a . Chech the electrolyte level and fill up with
distilled water if necessary (see the battery
user manual).
1b. Make a recharge (see the Maintenance
paragraph and the battery user manual).
Warning: before starting the battery recharge
the battery connector must be disconnected
from the machine.
When the recharge has been completed the
battery can be reconnected to the machine.
8

S31EUK4090SY(2)99-01
2- If the battery is supplied without electrolyte
(i.e. in dry charged condition) a filling must be
done with sulphuric acid (density from 1.27 to
1.29 at 25°C) according to the following rules
and to the battery user manual.
FILLING THE BATTERY WITH
SULPHURIC ACID.
Take special care: the battery acid is
corrosive; if it should come in contact with
the skin or eyes wash aboundantly with water
and consult a doctor.
The battery must be filled in a well ventilated
area.
Fill the battery cells with acid; the proper acid
level is shown in the figure.
Two hours later fill up the cells with acid if
necessary.
Let batteries rest for two further hours; then
proceed with a recharge according to the
instructions specified in the Battery User Manual
and in the MAINTENANCE paragraph. During
the recharge the battery caps must be open.
PREPARATION OF A NEW MACHINE
9

S31EUK4090SY(2)99-01
PREPARATION OF A NEW MACHINE
Warning: before starting the battery recharge
the battery connector must be disconnected
from the machine.
After the recharge close all the cell caps and
clean the top of the battery from any acid
remains.
Connect the battery connector to the machine.
Close the lid of the battery compartment.
3- If the machine is not equipped with batteries
they must be procured and mounted.
It is recommended to get the assistance of
qualified personnel to chose and set the
batteries.
10

S31EUK4090SY(2)99-01
BLACK CABLE
RED CABLE
The electrical terminals supplied with the battery
must be used for the connection of the cables to
the batteries. The cables are supplied with the
machine.
WARNING: before starting the recharge the
battery connector must be disconnected
from the machine.
MOUNTING THE BRUSHES
Open the two side doors of the machine.
Note: The instruction for mounting the brushes
on model AR 4095 Free Scrub are
specified on the next paragraph.
Put the brushes under the machine in contact
with the guide, to get a good alignment with the
brush holder.
Climb onto the machine and adjust the seat to
find the most comfortable position.
PREPARATION OF A NEW MACHINE
11

S31EUK4090SY(2)99-01
PREPARATION OF A NEW MACHINE
Insert the ignition key into the panel and turn it
clockwise: the display will show four zeros and
after a few seconds the battery voltage will
appear.
Push button Akeeping it pressed a couple of
seconds.
The machine will first run trough a click-Off
sequence (indicator Blighting) and, after that,
the click-On sequence will be enabled (indicator
Clighting).
Now the machine is ready for click-On that can
be done by pressing button Aagain (two
seconds at least).
After the second action on button Athe indicator
Cwill be On until the click-On will be completed.
Now the brushes are fitted.
A
B
C
A
C
12

S31EUK4090SY(2)99-01
13
MOUNTING THE BRUSHES ON MODEL
AR 4095 FREE SCRUB
Open the left and right side doors of the
machine.
Unscrew the knobs fixing the cover of the brush
compartment and remove the cover itself (on
both sides)
Insert the cylindrical brush (one from each side):
during this operation the guide pin on the
opposite side must be properly fit inside the
brush.
Fix the cover of the brush compartment and
close the side door.
FITTING THE SQUEEGEE
Remove the squeegee from the envelope and fit
it into the holder as shown in the figure; tighten
the knobs.
Disconnect the suction hose from its support and
fit the free terminal to the squeegee.
PREPARATION OF A NEW MACHINE

S31EUK4090SY(2)99-01
USE
14
PRELIMINARY OPERATIONS
Disconnect the locks on both sides of the tank
lid.
Fill the tank with detergent and water, making a
mix in accordance with the instructions of the
detergent manufacturer.
Close the tank lid.
Warning: do not use flammable nor explosive
solutions; foam making detergents are not
allowed.
Insert the ignition key into the panel and turn it
clockwise: the display will show four zeros and
after a few seconds the battery voltage will
appear.
Note: wait minimum 5 seconds to switch On the
machine after having switched it Off; otherwise
you will not get the start.
Check the battery voltage on the display.
The display has three functions: voltmeter, brush
pressure indicator and hour meter. The voltmeter
will activate the block function during an
undervoltage; it will disable all the machine
activities - except for the drive - when the battery
voltage drops below 29 Volt (the display flashes):
in this case the recharge of the battery must be
done as specified in the Maintenance paragraph
(see also the battery user manual).

S31EUK4090SY(2)99-01
USE
To display the current brush pressure value the
button shown in the figure must be pressed (i.e.:
when you read P 40 it means that the brush
pressure is 40% of the maximum possible value)
To access the hour meter function press again
the button shown in the figure: the display will
show the number of machine service hours.
Press the button the third time to display the
number of machine service minutes. Pressing
the button again or waiting ten seconds the
reading on the display will return to the battery
voltage level.
AUTOMATIC USE
Four different automatic working programs are
available named P1, P2, P3 and P4.
The working parameters of every program are
pre-set by the manufacturer of the machine.
It is possible - if necessary - to modify the values
of such parameters (see the paragraph USE OF
THE PROGRAMMER or ask for after sales
service assistance).
The use of the four automatic working programs
does not require the connection of the removable
programmer in the relevant connector.
Choose the best automatic program for the
specific application pressing one of the four
buttons (the functions performed by eachone of
the four automatic programs are described
below): the corresponding indicator and all the
activated functions will turn On.
Note: in order to enable the selection of a
different automatic program it is
necessary, first, to de-select the
previously chosen program.
15

S31EUK4090SY(2)99-01
DESCRIPTION OF THE AUTOMATIC
PROGRAMS (P1, P2, P3 AND P4)
P1: washing program with medium intensity
(medium brush pressure, low solution flow), for
smooth floor and light dirt; drying suction
activated.
Note: The content of this chapter is applicable
for all models described in this manual,
including model AR 4095 Free Scrub.
Note: the flow of the cleaning solution to the
brushes will be enabled only when both
the drive function and the brush motors
are working; this is applicable for all
working conditions.
P2: washing program with high intensity (high
brush pressure, high solution flow), for rough
floor (i.e. concrete) and heavy dirt; drying suction
activated.
P3: pre-washing program with medium intensity
(medium brush pressure, low solution flow);
drying suction disabled (squeegee lifted).
P4: drying function only (brushes not working, no
solution flow).
USE
16
P1
P3
P2
P4

S31EUK4090SY(2)99-01
USE
When one of the four automatic working
programs has been chosen select the forward
speed by means of the lever under the steering
wheel.
The functions of the lever are descibed in the
figure:
1- forward speed
2- reverse speed
3- horn
4- front light On/Off
Press the accelerator pedal to start the job.
Note: when either the accelerator pedal is
released or the lever for the speed
selection is set to the neutral position the
automatic switch Off of all functions will
occurr within some seconds (AUTO
POWER OFF); when in this condition the
indicator of the selected automatic
program will start lighting. To restart the
job just press the accelerator pedal
(AUTO POWER ON).
A safety device is located inside the operator
seat: the drive function - either forward or
reverse - is disabled as soon as the operator will
stand up or leave the seat.
Note: when the reverse speed is selected the
automatic lifting of the squeegee will
occur, then the reverse movement will be
enabled. When running reverse an
acoustic signal will be heared (all
functions will remain enabled).
The machine stops automatically as soon as the
accelerator pedal is released; in order to get a
quicker breaking the mechanical brake pedal
can be used (see the figure).
The machine is equipped with an emergency
stop red button; by pressing the button (red light
On) the stop of the traction and of all other
functions is got.
To re-enable the machine turn the emergency
button clockwise, as per the arrow on the button
itself. To restart the job it is necessary to select
again the preferred automatic working program.
1
23
4
17

S31EUK4090SY(2)99-01
When the job is compleded it is necessary to
empty the recovery tank.
A level sensor is located inside the recovery
tank: when the tank is full an automatic stop of
the suction motor will occur and the
corresponding alert light will turn On.
Switch the machine Off.
Open the tank lid.
An emptying hose can be connected if
necessary.
Open the valve of the recovery tank to discharge
the dirty water.
Note: if the machine will not be used for a long
time it is better to empty the solution tank
too.
USE
18