Duplex 340 Series User manual

InstructionManual
Use and Maintenance
STANDARD TEKNA
STEAM STEAM PLUS
FLOOR WASHER / CARPET
CLEANER
DUPLEX
340 / 420 / 620

WARNINGS
READ THE INSTRUCTIONS OF THIS BOOKLET
CAREFULLY BEFORE USING THE MACHINE.
See Directive ISO 7000-0434-1691-0790
WARNING: This appliance cannot be used to collect hazardous dusts
WARNING: This device is intended for use exclusively with the brushes specified by
the manufacturer.
The use of any other brushes could compromise the safety of the device.

DUPLEX 340-420-620
TABLE OF CONTENTS
1.1 FOREWORD 5
PROPER AND IMPROPER USE..............................................................................................................................6
1.2 GENERAL WARNINGS 7
MAINS CABLE WITH PLUG....................................................................................................................................7
AVOIDANY CONTACT OF THE MAINS CABLE WITH BRUSHES........................................................................7
OTHER WARNINGS.................................................................................................................................................7
1.3 DISTINCTIVE FEATURES AND COMPETITIVE ADVANTAGES OF DUPLEX MACHINE 8
1.4 GENERAL FEATURES AND FUNCTIONS 10
STEAM AND STEAM PLUS ...................................................................................................................................11
1.5 MACHINE ASSEMBLY 12
1.6 ASSEMBLING THE HANDLE 12
STEAM GENERATOR OPERATION...........................................................................................................................14
1.7 LOADING THE WASHING LIQUID 15
DUPLEX STEAM 340 AND 420 AND DUPLEX STEAM PLUS 420AND 620 .....................................................15
1.8 STARTING UP 16
1.9 USE PROCEDURE FOR ALL MODELS 17
1.10 HOW TO WASH FLOORS 19
STAGE 1.................................................................................................................................................................19
STAGE 2.................................................................................................................................................................19
1.11 CLEANING EXTREMELY DIRTY FLOORS 20
USING THE STEAM AND STEAM PLUS MODELS...............................................................................................20
1.12 TIPS FOR CLEANING FLOORS 22
CLEANING FLOORING WITH WAX CLEANERS ..................................................................................................23
1.13 STOPPING THE MACHINE 24
1.14 TRANSPORT 25
TROLLEY FOR TRANSPORTATION...........................................................................................................................25
1.15 AUTOMATIC MOTOR PROTECTION "MOTOR PROTECTOR" 26
1.16 CLEANING AND MAINTENANCE OF THE BRUSHES 27
TO REMOVE THE BRUSHES................................................................................................................................27
CLEANING THE MACHINE....................................................................................................................................27
CLEANING THE TANKS...............................................................................................................................................28
GENERAL MAINTENANCE ...................................................................................................................................29
1.17 PRECAUTIONS FOR USE OF THE STEAM GENERATOR 31
DUPLEX STEAM DESCALING.....................................................................................................................................31

DUPLEX 340-420-620
HINTS ON THE “STEAM” GENERATOR OPERATION............................................................................................. 32
1.18 TROUBLESHOOTING TIPS 32
WET STRIPES ON THE SIDES .............................................................................................................................32
THE DIRT IS NOT PICKED UP ..............................................................................................................................32
DOES NOT START UP...........................................................................................................................................33
IT VIBRATES.................................................................................................................................................................33
LIQUID FLOWS CONTINUOUSLY.............................................................................................................................. 33
THE LIQUID CONTINUES TO RUN OUT EVEN WHEN THE PISTONS HAVE RE-ENTERED AND ONE TANK
SUPPLIES MORE LIQUID THAN THE OTHER................................................................33.
WARRANTY
1.19 DISPOSAL AND WASTE SEPARATION 34
RECYCLING MATERIALS............................................................................................................................................34
1.20 HELPFUL HINTS FOR USE 35
SPECIAL PRODUCTS AVAILABLE ON REQUEST...............................................................................................35
1.21 TECHNICAL FEATURES 36

DUPLEX 340-420-620
5
WARNING
Read the instructions of this booklet carefully before using the machine.
The device is NOT intended for use by persons (children included) 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.
WARNING: Operators must be adequately trained to use the machine.
1.1 FOREWORD
DUPLEX is a machine for washing floors equipped with an original automatic system for
recovering dirty water.
Its special manufacturing characteristic consists of the off-set position of the cylindrical
brushes that thanks to their strong rotation permit:
•A thorough washing of any surface;
•Right to the edge cleaning;
•Automatic collection of dirty water.
Ease of use of the machine is ensured by the following:
•Two way handle operation for cleaning in forward and reverse directions;
•Counterbalanced position of the tanks that contain and supply the clean water;
•Tank for recovering the dirt located in the centre of the machine;
•Safety guards bearing the weight of the entire structure in die-cast aluminium;
•Brush support in stainless steel;
•Four wheels to control the selected brush height.

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DUPLEX is covered by international patents and has been designed and built according to the
best Italian technical tradition exploiting the know-how of an extremely high technological level.
PROPER AND IMPROPER USE
The proper use of this appliance includes washing, scrubbing and drying applications in
industrial and commercial use (hotels, schools, factories, hospitals, shops, offices) of floors
(internal and external) made of the following materials:
Ceramics - rubber –terracotta tiles - cement - wood –plastic –non-slip safety –PVC –
Vinyl –Profiled Rubber –Sports Safety Flooring - epoxy resin - brick - marble - granite –
relief ceramics –circular disk floors - linoleum - porcelain - glass –artistic mosaics - quartz.
Any other use is considered improper.
STANDARD TEKNA
STEAM STEAM PLUS
1.1

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1.2 GENERAL WARNINGS
MAINS CABLE WITH PLUG
•ChecktheMains Cable regularlytoseeifthereisanysignofdamage:cracking,peeling,
ageing.
•If the Mains Cable is damaged, replace it before using the machine.
•Use a cable of the same type used by the Manufacturer, certified according to “ENEC”
European standards
•Cable replacement must be performed by qualified personnel.
AVOID ANY CONTACT OF THE MAINS CABLE WITH BRUSHES
•Should the Mains Cable get caught under the machine brushes, DO NOT ATTEMPT TO
GET IT OUT WHILE THE MACHINE IS WORKING. Move the handle upwards to the
vertical position to stop the machine immediately.
OTHER WARNINGS
•Whenever the machine is in the rest position check that it does not rest on the brushes but
that it is supported by the four wheels that come down automatically when the slide
switch is in the “RT” position (see figure “1.10”). If this not the case, the machine weight
could warp the brushes.
•Do not pour water or liquids directly onto the machine.
•Unplug the Mains Cable plug from the power socket before any maintenance intervention.
•Store the machine in a closed and dry place after use.
•The machine is designed and constructed exclusively to clean floors. Any other use is
considered improper.
•When the machine is no longer able to operate after years of work, it must be dismantled
and rendered unusable for disposal in compliance with the indications on paragraph “1.20
DISPOSALAND RECYCLING”.
WARNING
CLEANING AND MAINTENANCE OPERATIONS MUST BE
PERFORMED
WITH THE MACHINE DISCONNECTED FROM THE MAINS.

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1.3 DISTINCTIVE FEATURES AND COMPETITIVE ADVANTAGES OF
DUPLEX MACHINE
The DUPLEX brand name is synonymous with double efficiency and distinguishes a machine
that actually has a dual function thereby providing numerous advantages for the best possible
floor cleaning and hygiene.
•OFF-SET BRUSH POSITION
This allows for reaching into the corners of every wall.
•TWO-WAY HANDLE
This allows for easily changing the direction of cleaning.
•DOUBLE LIQUID DISPENSING SYSTEM
This wets both brushes simultaneously.
•DOUBLE DIRT COLLECTION SYSTEM
Possible thanks to the forward and reverse cleaning action.
•BALANCED AND LIGHTWEIGHT USE
Thanks to the balancing of the components.
•DOUBLE WASHING SYSTEM
Possiblethankstothe actionoftwopowerful contra-rotatingbrushesthatscrub and agitate with a
peripheral speed of 5 metres a second.
•DOUBLE USE SYSTEM
Pre-washing is achieved by turning off the pick-up system or washing and drying simultaneously
with the pick-up system on.
•LARGER DIAMETER BRUSHES
Thisallowsfortheutmostworkingefficacyandmoreeffectivecleaningofthegroutinginfloors.
•BRUSH INSERTION SYSTEM
Original solution that prevents vibrations during operation.
•BRUSH REMOVAL
Easy removal by using the allen key supplied with the machine.
•OPTIONAL BRUSHES
Suitable for washing and polishing all types of floors, brushes for carpets, and also abrasive
brushes for removing ground-in dirt.
•TWO TANKS CONTAINING THE WASHING LIQUID
Easy removal for cleaning.

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•RECOVERY TANK
Installed in the middle of the machine for easy removal and fitted with two efficient trimmers.
•VERSATILITY
Lightweight, user-friendly, and fatigue-free.
•FOUR OPERATING POSITIONS
For adapting from heavy, hard-floor scrubbing to delicate, deep pile carpet cleaning.
•TECHNOLOGICALADVANTAGES
1. No electrostatic loads.
2. Hermetically sealed motor.
3. Revolving mechanisms on maintenance-free sealed stainless steel bearings.
4. Electrical energy 110% greater than other machines.
5. Exceptional efficacy thanks to the original dirt recovery system.
•QUIET OPERATION
Noise level and vibration dBA < 60
•TANK CAPACITY
200% greater than other machines.
•STEAM GENERATOR
The original and exclusive generator allows Duplex floor washer Steam model to wash and
sanitize all types of flooring by means of steam at 110c. The steam is directed on to the floor at
a high temperature facilitating the removal of even the most stubborn dirt.

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1.4 GENERAL FEATURES AND FUNCTIONS
1
Regulator (Rest Translation")
5
Recovery tank
2
Insertion of dirt collector (Mop Up)
6
Steam switch
3
Motor Protector
7
Plug
4
Tanks for water with detergent
8
Boiler (with switch)
5 4 5 4
4 4
3
3
STANDARD
1 1
2 2
TEKNA
6
6
7
7
4 5
8
45 8
3
1
2
STEAM STEAM PLUS

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11
STEAM AND STEAM PLUS
ECOFRIENDLY STEAM MACHINES
By using steam and brush agitation we can clean all types of flooring
without the use of chemicals and detergents.
Washes, restores, dries and sanitizes all types of flooring by means of powerful steam.
The steam is directed on to the floor at a high temperature facilitating the removal of even the
most stubborn dirt.
The ste am sprayed cl ose to th e flo or i s e ven more effe ctive
in the removal of greasy and stubborn dirt on either hard, smooth or profiled flooring.
This steam washing system is particularly effective on textile flooring such as CARPETS
as it not only washes the textile fibres but it re-vitalizes them as well.
The machine is also equipped with two standard tanks which can be used in a conventional
manner with water and detergent.
On the STEAM and STEAM PLUS models, two tanks are used, one contains and supplies the
water and the other contains the steam generator.
The possibility to reverse the handle position, allows the operator to easily work in both directions
and thoroughly clean and wash floors and carpets.
Figure 1.3

DUPLEX 340-420-620
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1.5 MACHINE ASSEMBLY
The machine is shipped packed in cardboard
boxes (1). 1
On receipt of the package, the user must carry
out the assembly of the parts which due to their
overall dimensions are unassembled before
being shipped.
The package contains the following:
•Machine (2);
•Elbow for handle (3); 2
•Handle (4);
•Connecting casing (5);
•Use and maintenance manual (6);
•Tanks (7);
•Certificate of Compliance.
1.6 ASSEMBLING THE HANDLE
5 7
4 3 6
Figure 1.4
1. Insert the elbow of the handle into the housing of the jointed elbow.
2. Tighten the two screws with the allen key supplied and tighten well (A);
3. Assemble the handgrip of the handle by pushing it through the connecting casing and make
sure to point the screws inward switch the cable-holder facing towards the bottom.
4. Screw up the three screws with the same allen key supplied (B)
A B
Figure 1.5

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GF7 V1 waterproof plug and socket.
All UK Duplex steam machines have a plug and socket
connection (A) to the steam generator.
When using the machine in steam mode the plug and
socket must be connected and the fitting ring has to be
fully tightened
When changing to standard water tanks (removing steam generator) the cap (B) attached to
the steam tank socket on the machine must be fitted (screwed fully on and tightened).
Machine operation
The switch on the steam tank operates as an on/off switch for the steam, when in the on
position the steam generator only operates when the main handle is in the working position
i.e. the brushes are rotating.
The steam will take approximately 30 seconds to start,
before this there will be a small amount of water pumped
out of the steam generator, this is normal.
Remember a small amount of Hydroscale used at each
session will minimize scale build up.
When assembled the machine must look like the following drawing.
Cap B
Plug and socket A

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8
STANDARD STEAM STEAM PLUS TEKNA
Figure 1.6
5. Adjust the screw of the slide switch located underneath the lever (7) of the handgrip, at
the same time paying attention to the movement of the pistons (8) that allow the liquid to
exit from the tanks.
6. Make sure that the pistons (8) remain flush with the side panel when the lever (7) is not
pulled down.
IMPORTANT!
If the pistons protrude it may not be possible to insert or
extract the tanks containingtheliquidfromtheirhousings.
Useascrewdriverto adjust their position either inwards or outwards.
7
Figure 1.7

DUPLEX 340-420-620
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A
FILLING THE TANK
Twotankscontainthewashingliquidandthey both
have always to be at the same level.
Filling can be performed as follows:
1. bypouringwaterinfromajug(figure“1.9”);
2. removingthetanksandplacingthemunder
a tap.
STEAM PLUS model is equipped with a level
gauge for water (1) ensuring easy control of
the residual active solution in the tank.
Fill tank “A” only with water.
1
Figure 1.9
WARNING
Themanufacturerdeclinesanyliabilityfordamagecausedtothe
machine, flooring of any kind, including carpets,
deriving from the use of
non conforming detergents or products (see “1.19 WARRANTY” )
DUPLEX STEAM 340 and 420 AND DUPLEX STEAM PLUS 420 and 620
WARNING
With DUPLEX STEAM model detergents must not be used.
The use of detergents will irreparably damage the equipment.
the manufacturer shall not be liable for damage caused to the machine deriving from
the use of any other type of detergent or non conforming products (see paragraph
“1.19 WARRANTY”).

DUPLEX 340-420-620
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1
Heavy duty wash for very dirty floors.
2
Delicate wash for all types of floors.
3
Normal carpets and wooden floors.
4
Long-pile carpets.
5
Transporting position.
(REST TRASLATION)
1.8 STARTING UP
1. Make sure that the handle is in the Rest
position (perfectly vertical) and that the
slide switch is in the “Translation”
position (REST TRANSLATION);
2. Plug the mains cable into an earthed socket. MU RT
3. Shift the slide switch to one of the four
available positions according to the type
of cleaning you wish to perform (figure
“1.11”).
(MU= Mop-Up)
Figure 1.10
1
2
3
4
5
Figure 1.11
WARNING
During machine operation it is recommended to keep the cable
well clear of the brushes to prevent it from being
damaged.

DUPLEX 340-420-620
17
1.9 USING THE MACHINE
1. Takehold of the handle and lowerit slowlyto one of the two
sides. The machine will start up and the brushes will start
revolving on the floor (figure “1.12”) .
2. Move the machine slowly forwards, going over the same
washing path with the recovery device MU (MOP UP)
engaged (figure “1.10”).
3. Dispense the liquid by activating the lever underneath the
handleatbriefintervalsandonlywhenthemachineismoving
forwards, taking care not to flood the floor.
Figure 1.12
The dirty water will be collected instantly inside the recovery
tank which must be emptied as soon as it fills up removing it
from its seat (figure “1.13”) .
Figure 1.13
WARNING
The disposal of the dirty water must be carried out in compliance with
the regulations in force.

DUPLEX 340-420-620
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Figures A, B and C illustrate how Duplex floor washing machines work close to the edges of
the skirting boards or furniture gaining access also into restricted spaces.
Reversing the handle from right to leftand vice versa, allows DUPLEX machines toworkin both
directions and reach the opposite ends of every room.
A B C
Figure 1.14

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1
st
stage
2
st
stage
1.10 HOW TO WASH FLOORS
Stage 1
1. From the starting position, move forward towards the corner as indicated in the figure.
2. When you havereached the corner,move backwith the machine andkeep cleaning the lane
until you reach your starting position.
3. From the starting position move to the second lane to wash slightly overlapping the area
you have cleaned before.
4. Repeat this operation until you complete stage 1.
5. Clean the outer edge on the opposite side of the cleaning area, reversing the machine.
Stage 2
6. Reverse the machine cleaning direction using the handle.
7. Repeat the operations described in Stage 1.
1st Stage
2st Stage
Figure 1.15

DUPLEX 340-420-620
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1.11 CLEANING EXTREMELY DIRTY FLOORS
When it is necessary to thoroughly wash floors with ingrained dirt it is advisable to switch off
the “mop-up”.
In such conditions the water left on the floor will serve to further soften the dirt and this will be
subsequently removed by an energetic brushing action together with the steam.
To deactivate the recovery device, proceed as follows:
1. Stop the machine (if in operation);
2. Position the MOP-UP lever (figure “1.10”) upwards.
Then, by positioning the MOP-UP lever downwards the automatic dirty water recovery system
will be switched back on.
IMPORTANT!
When using this procedure on carpets extra care must
be taken not to soak the floor.
USING THE STEAM AND STEAM PLUS MODELS
1. Pressthemainswitchontheboiler(A) (figure“1.16”).
The switch will light up when the
handle is moved into a working
position.
2. Slowly lower the handle on one of the sides. The
machine will start up and the revolving brushes will
start revolving on the floor.
3. As the machine is moved over the floor the steam
generator will start to heat up, after about 1 minute
steam will start to flow from the stainless steel
plate on the side of the tank.
4. Operate the lever positioned under the handle
every time that floor needs additional wetting.
5. Move the machine forwards following the same washing
track.
6. Dispense the liquid by activating the lever underneath the
handleatbriefintervalsandonlywhenthemachineismoving
forwards, taking care not to flood the floor.
A
Figure
1.16
1