Duplex 340 Series User manual

InstructionManual and
Maintenance Guide
STANDARD
340 / 420
DOUBLE
HANDLE
620
STEAM 340 / 420 STEAM 620
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 ...................................................................................................................................................................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 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 MODELS..............................................................................................................................20
1.12 TIPS FOR CLEANING FLOORS 22
CLEANING FLOORING WITH WAX CLEANERS ..................................................................................................24
1.13 STOPPING THE MACHINE 25
1.14 TRANSPORT 26
TROLLEY FOR TRANSPORTATION...........................................................................................................................26
1.15 AUTOMATIC MOTOR PROTECTION "MOTOR PROTECTOR" 27
1.16 CLEANING AND MAINTENANCE OF THE BRUSHES 28
TO REMOVE THE BRUSHES................................................................................................................................28
CLEANING THE MACHINE....................................................................................................................................28
CLEANING THE TANKS...............................................................................................................................................29
GENERAL MAINTENANCE ...................................................................................................................................31
1.17 PRECAUTIONS FOR USE OF THE STEAM GENERATOR 32
DUPLEX STEAM DESCALING.....................................................................................................................................32

DUPLEX 340-420-620
HINTS ON THE “STEAM” GENERATOR OPERATION............................................................................................. 33
1.18 TROUBLESHOOTING TIPS 33
WET STRIPES ON THE SIDES .............................................................................................................................34
THE DIRT IS NOT PICKED UP ..............................................................................................................................34
DOES NOT START UP...........................................................................................................................................34
IT VIBRATES.................................................................................................................................................................34
LIQUID FLOWS CONTINUOUSLY..............................................................................................................................34
THE LIQUID CONTINUES TO RUN OUT EVEN WHEN THE PISTONS HAVE RE-ENTERED AND ONE TANK
SUPPLIES MORE LIQUID THAN THE OTHER...................................................................
WARRANTY
1.19 DISPOSAL AND WASTE SEPARATION 35
RECYCLING MATERIALS............................................................................................................................................35
1.20 HELPFUL HINTS FOR USE 36
SPECIAL PRODUCTS AVAILABLE ON REQUEST...............................................................................................36
1.21 TECHNICAL FEATURES 37

DUPLEX 340-420-620
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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 with an original automatic system for recovering
the dirty water.
Its special manufacturing characteristic consists of off-set cylindrical brushes that rotate at
600 rpm and a pressure of 200g/per cm2 which gives:-
•A thorough washing and drying 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 center of the machine;
•Safety guards bearing the weight of the entire structure in die-cast aluminum;
•Brush support in stainless steel;
•Four wheels to control the selected brush height.

DUPLEX 340-420-620
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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:-
Altro –Timber safe –ceramic tiles and grout - rubber –dimpled 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 –steel checker plate and many others
340/420
STANDARD 620 STANDARD
340/420 STEAM 620 STEAM
1.1

DUPLEX 340-420-620
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1.2 GENERAL WARNINGS
MAINS CABLE WITH PLUG
Check the mains cable regularly to see if there is any sign of damage: 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
•Qualified personnel must perform cable replacement.
AVOID ANY CONTACT OF THE MAINS CABLE WITH THE BRUSHES
•Always work with the cable behind you as to not get it near the machine during use
•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 and move the slide switch to the rest
position then remove the plug from the socket outlet
•Only the remove the cable and check for damage if it is damaged in any way the cable
must be replaced before the machine is used again
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” rest 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 from the power socket before any maintenance.
•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”.

DUPLEX 340-420-620
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WARNING
CLEANING AND MAINTENANCE OPERATIONS MUST BE
PERFORMED WITH THE MACHINE
DISCONNECTED FROM THE MAINS SUPPLY.
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 cleaning right to the edge and into the corners.
•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 actionof twopowerful 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.

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•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.
•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
Slide switch (Rest Translation)
)
5
Recovery tank
2
Insertion of dirt collector (Mop Up)
6
Steam switch
3
Motor Protector
4
Tanks for water with detergent