FIORENTINI BIG 38, BIG 48 Instructions For Use And Maintenance Manual

ING. O. FIORENTINI S.p.A.

INDUSTRIAL CLEANING MACHINES

FLOOR SCRUBBER-DRYER

MODEL BIG 38/48

INSTRUCTIONS FOR USE

AND MAINTENANCE

CONTENTS

1.

GENERAL INFORMATION

4

1.1. Symbols used……………………………….…….........................……..................page

4

1.2. Disclaimer…...............................................................................................................

4

1.3. Use of the manual…………......…………………………....….........…….............…….

4

1.4. Warranty..............................................................…………...…………...….…...........

4

1.5. Declaration of Conformity........................................…...........………….………..……

5

2.

MACHINE FEATURES AND TECHNICAL DATA

7

2.1. Identification………………......…...............................….…………….….……............

7

2.2. Description and components….……………...…....................................................…

7

2.3. Technical data sheet................................…........……………………….....…............

9

3.

SAFETY

10

3.1. Intended use.…………..………....……………....…....……………….....………….......

10

3.2. Improper use…………………………………………………………………..…………...

10

3.3. Recommended equipment……………………………………………………….....……

10

3.4. Operator qualifications..............……………….......……………...…………................

11

3.5. Safety and warning devices……………..................…...………….............................

11

3.6. Residual risks………………………………………………………………………………

12

3.7. Safety signs……………………………………………………………….................…...

13

4.

STAR-TUP AND OPERATION INSTRUCTIONS

16

4.1. Transport and handling............. .….....................…....………….….…………........

16

4.2. Storage........................... ...............…………….………….....................................

17

4.3. Unpacking the machine... .....................……………………..........................….....

17

4.4. Handling the unpacked machine…. .…..........………………………..……............

17

4.5. Installation…..........................................................………………..……................

18

4.5.1. Battery installation……..........……..….......……………….…...….…….........….....

18

4.6. Control and monitoring devices……………………………….............................…

19

4.6.1. Dashboard…………………………………………………………………….......……

19

4.7. Operation…………………………………………..........................................……..

21

4.7.1. Starting and preparing the machine………………………………..……………….

21

4.7.2. Choice of detergent………………………………………………………….………..

21

4.7.3. Adjustment of the driving position….………………………………............………

22

Congratulations on your choice!

Thank you for choosing to purchase a product by FIORENTINI S.p.A., a global leader in
the manufacture and marketing of industrial cleaning machines.

Our long-standing experience and acquired know-how are the best guarantee of the
technical quality of your purchase; all our products are built from top quality materials to
ensure maximum reliability, sturdiness and functionality and to meet the requirements of
even the most demanding customers. FIORENTINI has recently obtained UNI EN ISO
9001:2000 certification for its quality system certificate.

Feel free to contact us with any technical or commercial inquiry; we will be happy to
supply any details and information that you may need.

4.7.4. Pedal functions…………………………………………………………..........……..

23

4.7.5. Regulating the detergent solution………………………………………….….……

23

4.7.6. Squeegee adjustment…..……………………………….………………….….……

24

4.7.7. Drain hoses………………….............…......………….………..................….……

25

4.7.8. Replacing the brushes………………………………..…………………….....….…

26

4.7.9. Replacing the squeegee blade………………….…………………………....…….

27

4.7.10 Tilting the fairing…………………………..............…………………………

28

5.

MAINTENANCE

29

5.1. Routine maintenance table…… ……..................….....…..………….................

29

5.2. Battery maintenance……………………..……………………………………..…..

29

5.2.1. Measuring specific gravity……………………….……………..................….

30

5.2.2. Topping up the water…………………………...............................................….

30

5.2.3. Charging limits……………………………………………………………………….

30

5.2.4. Batteries not in continuous service or inactive …..........………..............……...

30

5.2.5. Battery disposal….......………………………………………..…………………….

30

5.3. Maintenance of the suction motor…..……………………....……………………..

31

5.4. Checking the electrical system………………………………….……….………….

32

5.5. Inspection summary schedule……………………………….................………….

32

5.6. Maintenance Log………………………...............………………………………….

33

6.

TECHNICAL SUPPORT

34

6.1. Contact details for technical support............…………................……..................

34

6.2. Complaint report……………………………..…………...…………………..............

34

MACHINE FEATURES AND TECHNICAL DATA

BIG 38/48

1. GENERAL INFORMATION

1.1. SYMBOLS USED

This symbol is used to call the operator’s attention to important procedures or precautions
required to prevent harm to users or the machine

This symbol is used to call the operator's attention to important general information.

1.2. DISCLAIMER

1.3. USE OF THE MANUAL

This manual provides extensive coverage of all topics deemed necessary for easy and safe use of the
machine, in compliance with European Directives on product safety.

We therefore advise all authorised operators to read all parts of the manual carefully, to follow its indications
thoroughly and to contact FIORENTINI S.p.A. for clarifications in case of any doubt. The manual should also
be used for reference whenever there are doubts concerning a procedure or operation and for training new
operators.

For reasons of printing, the pictures and drawings may appear slightly different from the actual machine
parts, without however casing any confusion.
Special symbols and bold and/or Italic fonts are used to highlight important information, particularly with
regard to safety.
The current revision code is indicated at the bottom left corner of every page. The list of revised pages is
shown at the end of the manual.

1.4. WARRANTY

The warranty terms and conditions are stated below unless otherwise specified in the order confirmation.

This manual is the property of FIORENTINI S. p. A.
The reproduction of all or part of this manual or its transmission to third parties by any
mechanical or electronic means or otherwise is forbidden without written authorisation
from the manufacturer. This manual is supplied to customers in a single original copy
unless otherwise specified at the time of ordering.

This manual is supplied as an integral part of the machine and should remain with the machine if transferred
to a new owner. This manual should be kept in a safe location for the entire working life of the machine. The
purchaser is responsible for making this manual available to all users. If this manual is lost, a duplicate should be
obtained from FIORENTINI.

FIORENTINI S.p.a. will not be held responsible for any damages to persons and/or property resulting from
failure to comply with the instructions in this manual.

FIORENTINI reserves the right to introduce any required technical and commercial changes without prior
notice. Therefore, any data and information contained in this manual may be changed and/or updated.

MACHINE FEATURES AND TECHNICAL DATA

BIG 38/48

SCOPE OF THE WARRANTY
The machine has been designed and built for trouble-free use over several years. However, if any

malfunction occurs during the warranty period, FIORENTINI S.p.A. undertakes to repair or replace free of
charge any parts revealing damage or premature wear due to faulty materials, factory defects or incorrect
assembly. The warranty does not cover any parts with damage or premature wear due to:

 failure to observe the instructions contained in this manual;
 tampering or alterations made without FIORENTINI’s specific approval;
 use of non-original spare parts;
 worn replacement parts, such as brushes, squeegee blades etc.

For installed electrical parts and commercially available parts, FIORENTINI S.r.l. extends to purchasers the
same warranty terms granted to FIORENTINI itself by the suppliers of the parts.

WARRANTY PERIOD
The warranty is valid for 12 months, starting from the machine delivery date. This is a fixed warranty term

and may not be extended due to replacements or repairs carried out during the warranty period.
EXCLUSIONS

The warranty does not cover materials and components subject to normal wear (brushes, squeegee blades
etc.) and those whose working life cannot be determined beforehand.

WARRANTY APPLICATION TERMS
Defective components must be returned to FIORENTINI S.p.a. in order to establish the causes of any

defects discovered and determine warranty applicability. Repairs and replacement under warranty will be
carried out on FIORENTINI’s premises, by third parties or on the customer's premises. For services carried
out on the customer premises, power sources and any special equipment necessary for the repairs will have
to be provided by the customer.

PRODUCT RETURNS
Written approval must be obtained from FIORENTINI's Technical Support office before returning parts for

replacement or repair under warranty.
All defective parts must be carefully repacked in order to avoid damage during transport. Products must be
returned on a free-on-board basis, complete with:

 the serial number from the machine data plate (see point 2.1);
 the item code and installation position of the returned part, as given on the spare part list;
 a detailed description of the defect and the conditions under which it became apparent;

In the case of defective electrical or electronic components,
please return the parts separately from other materials, so that
waste containing dangerous substances can be segregated and
Waste Electrical and Electronic Equipment (WEEE) can be recycled
in accordance with Directive 2002/96/EC.

A missing machine data plate will result in immediate loss of any warranty rights.

1.5. DECLARATION OF CONFORMITY

The Declaration of Conformity is supplied with the purchased machine and the use and maintenance
manual.

MACHINE FEATURES AND TECHNICAL DATA

BIG 38/48

MACHINE FEATURES AND TECHNICAL DATA

BIG 38/48

2. MACHINE FEATURES AND TECHNICAL DATA

2.1. IDENTIFICATION

The machine is identified by an adhesive plate attached to the protective casing of the steering column,
which contains indelible data regarding “CE” marking.

The plate must never be removed and should always be kept legible. In case of damage,
a duplicate should be ordered. The machine cannot be sold without the plate.

2.2. DESCRIPTION AND COMPONENTS

The BIG 38/48 scrubber-dryer is designed to clean all flat surfaces by washing and then suctioning the waste
water. The scrubber-dryer has a drive system consisting of two gear motors installed on the rear wheels,
powered by a 36V x 450 A/h box battery. The brush system is driven by three 750W gear motors fitted
directly on the brushes and powered in turn by electric accumulators, as are the suction motors.

The machine uses three rotating brushes to clean the floor surfaces, assisted by the action of the water and
detergent. As the machine travels forward, the rear brush (squeegee), in contact with the floor, collects the
water, which is immediately conveyed by suction to the recovery tank.

The dashboard regulates all the machine functions and provides the operator with an LED system that
indicates the remaining battery capacity and any errors detected by the electronic board, which are displayed
as rapid flashes. All the main functions of the machine can be activated through the dashboard. In detail,
these include:

 raising, lowering and switching on the brushes;
 regulating the water delivery flow;
 starting the suction motors;
 lowering/raising the squeegee;
 turning the lights on and off;
 turning on the flashing beacon and the buzzer;
 starting and stopping the machine.

The load-bearing structure of the machine consists of a cold-galvanised or stainless steel chassis, which
prevents oxidation problems that could affect its reliability.

The machine comprises the following main components:

 a cold galvanized or stainless steel chassis;

Ing. O.Fiorentini S.p.A.

MADE

50030 Piancaldoli (FI)

IN ITALY

Mod

BIG38

S.N.

101

2008

V

36

rpm

3600

Kg

780 A 174

kW

4.75

FIGURE 2.1

MACHINE FEATURES AND TECHNICAL DATA

BIG 38/48

 an ABS plastic washing liquid tank;

 an ABS plastic waste water recovery tank with flexible suction and drainage hoses;

 three washing brushes;
 a squeegee;
 one idle wheel;
 two drive wheels controlled by electric motors;
 the steering assembly;
 the driver’s seat.

In consideration of recent EU product safety concerns, FIORENTINI has designed and built this machine in
compliance with the safety and health requirements provided by the applicable Directives. High quality
materials, advanced technology and FIORENTINI’s experience have been combined to produce a machine
of high performance and reliability. Each machine undergoes rigorous testing during construction and careful
final inspection.

MACHINE FEATURES AND TECHNICAL DATA

BIG 38/48

2.3. TECHNICAL DATA SHEET

The specifications provided above are not binding on the manufacturer and may therefore be
changed without notice. FIORENTINI can be contacted at any time for further information
(see point 6.1.).

UNIT OF MEASUREMENT CONVERSION TABLE

Length

1 inch = 1” = 25.4 mm

Power

1 kW = 1.36 CV = 1.34 BHP

Temperature

T (K) = t (°C) + 273 / t (°F) = 1.8 t (°C) + 32

Pressure

1 bar =100 kPa = 14.5 psi

MODEL

BIG 38

BIG 48

MAIN SPECIFICATIONS

Total working width

950 mm

1150 mm

Maximum output per hour

5700 m²/h

6900 m²/h

Maximum working autonomy

5-6 h

5 h

Solution tank capacity

300 l

300 l

Recovery tank capacity

300 l

300l

GENERAL SPECIFICATIONS

Traction (front/rear)

rear

rear

Type of traction

Two electric gear motors

Two electric gear motors

Travel speed

0/6 km/h

0/6 km/h

Max. gradient with a full load

12%

12%

Depression

1600 mBar

1600 mBar

Brush head pressure

0/100 kg

0/100 kg

Noise (operator’s ear)

<75 dB

<75 dB

Minimum turning radius

2450 mm

2800 mm

ELECTRICAL SYSTEM

Power supply voltage

36V

36V

Suction motor

2x 850W

2x 850W

Brush motors

3x 750W

3x 750W

Drive motors

2x 750W

2x 750W

Power supply

36V - 450A/h

36V - 450A/h

DIMENSIONS AND WEIGHT

Length

1800 mm

1800 mm

Width

1000 mm

1000 mm

Height

1820 mm

1820 mm

Number/diameter of brushes

3x Ø330 mm

3x Ø330 mm

Squeegee width

1300 mm

1470 mm

Battery weight

530 kg

530 kg

SAFETY

BIG 38/48

3. SAFETY

3.1. INTENDED USE

The BIG 38/48 is a floor scrubber-dryer machine designed and built for use in
industrial environments for washing and drying, with waste water removal, of flat
horizontal surfaces or sloping surfaces with gradients not exceeding 12%.

3.2. IMPROPER USE

 machine operation by unauthorised personnel;
 washing uneven and/or bumpy surfaces;
 washing of sloping surfaces;
 washing of surfaces with a gradient exceeding 12%;
 performing U-turns on a slope exceeding 5% and with a speed of over 1 km/h;
 using the machine in environments containing dangerous substances, and

particularly in explosive atmospheres or unsuitable microclimatic conditions;

 cleaning machine surfaces in the presence of flammable substances;
 use of the machine as a means of transport for people or other vehicles;
 modifying or tampering with the protection devices;
 charging the batteries in locations with insufficient ventilation;
 failure of operators to comply with current safety regulations/procedures;
 fitting equipment/devices likely to interfere with machine operation;
 introducing changes or alterations not authorised by FIORENTINI;
 using acid solutions likely to damage the machine;
 failure to comply with the specifications of the use and maintenance manual.

The information labels placed on the machine should be read carefully and should not be
covered for any reason. FIORENTINI shall assume no liability in any case of improper use
of the machine as described above.

3.3. RECOMMENDED EQUIPMENT

To make the best use of your machine, equipment specially designed and tested by Fiorentini and original
spare parts should be used. The FIORENTINI S.p.A. technical department is available to customers to meet
any design needs concerning parts and components required for a particular use of the machine.

SAFETY

BIG 38/48

3.4. OPERATOR QUALIFICATIONS

The table below shows the operator qualifications required based on the type of operation to be performed.

TYPE OF OPERATION

OPERATOR QUALIFICATIONS

Driving/control

Trained operator

Installation/removal

Fiorentini technician

Maintenance of mechanical parts

Fiorentini technician

Maintenance of electrical parts

Fiorentini technician

Cleaning maintenance

Trained operator

Dismantling and scrapping

Fiorentini technician

The personnel assigned to operating the machine should be specifically trained, particularly in regard to
safety issues; machine operators must have read and understood this manual.

FIORENTINI declines all liability for accidents involving persons or property caused by
unqualified and unauthorised operators.

3.5. SAFETY AND WARNING DEVICES

 Tampering with safety devices, and their removal or deactivation while the machine

is in operation, is strictly prohibited.

 The efficiency of safety and warning devices should be regularly checked (see point

5.1.).

Front brush guards

The BIG 38/48 machine has three nylon bristle brushes that rotate during
normal operation. Access to hazardous areas is prevented by plastic casing
that serves as a guard. The guard can only be removed intentionally. Removal
of a fixing element will obviously cause detachment of the guard from the
machine.

Warning devices

The BIG 38/48 machine is fitted with various warning devices to alert anyone
who happens to be within the working range of the machine:

 a horn-type acoustic signal to alert any persons in the vicinity of the

machine during normal use;

 an acoustic warning signal (buzzer) that sounds whenever the reverse

gear is engaged;

 a signal light with a yellow flashing beacon to indicate that the machine

is in operation.

SAFETY

BIG 38/48

SAFETY PLUG
The BIG 38/48 machine has a safety plug that connects the power supply batteries to the rest of the

machine. The plug is disconnected by pulling on the handle, which brings all machine functions to an
immediate halt. Operators should therefore familiarise themselves with use of the safety plug, as it provides
the most complete prevention and protection system. Use of the emergency plug should therefore be
automatic in situations of real or presumed emergency.

Pull in the case of
emergency

3.6. RESIDUAL RISKS

Starting from the design phase, FIORENTINI has analysed all the possible hazards related to use of the
machine in order to eliminate or at least minimise any risk of injury to machine operators. Warning signs and
indications regarding the accident-prevention systems and procedures to be used have been provided for
machine operators in order to minimise residual risks.

RISK OF CRUSHING

Risk of crushing is present:

 when replacing the front brushes;
 when checking the brushes in the suction motor;
 when adjusting the squeegee;

When replacing the brushes and adjusting the squeegee, the operator must ensure that the ignition
key is not inserted in the dashboard in order to prevent accidental starting of the machine.

This hazard is indicated by pictograms on the brush guards and recovery tank.

RISK OF OVERTURNING

Risk of overturning is present:

during normal use of the machine when the slope limits specified under improper use of the
machine are exceeded and when the machine is used to clean surfaces that are uneven or have
holes and depressions (see 3.2).

SAFETY

BIG 38/48

Do not use the machine to wash surfaces with gradients exceeding 12% or bumpy or
uneven surfaces likely to affect its stability.

FIORENTINI declines all liability for accidents involving persons or property caused by use of
the machine on surfaces that can compromise its stability. The buyer must put suitable signs
in place to inform the user of the state and condition of the surfaces to be cleaned.

3.7. SAFETY SIGNS

These include signs indicating:

HAZARDS

These signs are triangular with black
pictograms on a yellow background

PROHIBITIONS

These signs are round with black pictograms
on a white background with a red stripe

What is this?

This sign indicates the risk of crushing by moving parts inside the
machine.

What should
I do?

During installation or maintenance work, ensure that the ignition key
has been removed from the dashboard.

What is this?

This sign prohibits the removal of guards covering moving parts.

What should
I do?

Before removing guards for installation or maintenance work, always
ensure that the ignition key has been removed from the dashboard.
During operation, keep body parts clear of the machine and ensure
that the guards are securely in place.

SAFETY

BIG 38/48

If any signs become damaged, the purchaser must replace them with identical ones.
It is strictly forbidden to remove or tamper with these signs.

What is this?

This sign indicates risk of crushing due to closure of the recovery
tank. This can be tipped to one side along the longitudinal axis of the
machine to facilitate cleaning of the tank and to provide access to the
battery.

What should
I do?

Take particular care during maintenance and, if necessary, provide a
suitable support.

SAFETY

BIG 38/48

If any signs become damaged, the purchaser must replace them with identical ones.
It is strictly forbidden to remove or tamper with these signs.

What is this?

This sign indicates risk of crushing during maintenance by the suction
motors.

What should
I do?

Take particular care to ensure that the key is not inserted in the
dashboard and that the motor protection cover does not tip over.

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4. START-UP AND OPERATION INSTRUCTIONS

4.1. TRANSPORT AND HANDLING

The machine is delivered to the purchaser fully assembled, in special packaging whose features are indicated in
figure 4.1 below. The centre of gravity is marked by a black arrow on the packaging. The forks of the forklift or
pallet truck must be positioned with the black arrow centred between them. The package must be handled with
extreme care. Do not stack one package on top of another.
If agreed with the purchaser, the machine can be delivered without packaging, placed on a pallet and secured
by means of straps.

The purchaser should check upon delivery that the machine has not been damaged during
transport and that all the material listed in the transport documentation has been received;
otherwise, the forwarders and manufacturer should be promptly informed.
Unless otherwise agreed, purchased goods will travel at the purchaser's own risk.

Handling must be performed with appropriate lifting equipment and devices, as indicated in the following table.
Always ensure that the elevator forks and harness straps are placed so that the black arrow on the packaging is
centrally positioned in relation to the lifting system. Anchor and/or harness points must be arranged so that the
machine remains in a stably balanced position during lifting.

TYPE OF PACKAGING

LIFTING EQUIPMENT AND DEVICES

FIG.

Cardboard or plywood box on a
pallet

Forklift truck

4.2

None

Forklift truck/mobile crane with two slings and a spreader bar

4.3

FIGURE 4.1

1080

1840

850

1850

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

The slings used must be of a suitable capacity for the load. All handling operations
should be performed very slowly to prevent the load from swinging or tipping. Any
improper handling manoeuvres could damage the machine or expose operators to risk.

For the machine dimensions and weight, see point 2.3 Handling of the machine should
only be carried out by authorised personnel trained in the use of lifting equipment.

LOADING DIAGRAM

4.2. STORAGE

If the machine is not installed immediately, it should be stored in an enclosed, dry location to ensure the proper
preservation and efficiency of all its components. Relative humidity must be below 80% and the storage
temperature must be between 3°C  and  + 45 °C.

4.3. UNPACKING THE MACHINE

 Cut the strapping with care so that it does not spring up;
 Remove the staples on the base connecting the box to the pallet
 If the package is made of plywood, remove the staples from the sides and base of each panel;
 Cut the strapping holding the machine in place;
 Place the machine on the ground.

4.4. HANDLING THE UNPACKED MACHINE

When handling the machine for short transport after use, disconnect the battery cables and remove the
brushes and squeegee; for longer transport, repack the machine in the original box.

FIGURE 4.2

FIGURE 4.3

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.5. INSTALLATION

Installation must be performed by authorised personnel with knowledge of the instructions
contained in this manual.

The BIG 38/48 floor scrubber-dryer can only be put into service when there is absolute certainty that all its
components and devices are in good working condition. For this purpose, FIORENTINI's specialised technicians
conduct rigorous testing during manufacture and a thorough final inspection of each machine.

4.5.1 BATTERY INSTALLATION

For installation of the batteries, follow the instructions given below:

 raise the recovery tank to access the battery compartment (detail 1 figure 4.4);
 install the battery box in the provided compartment (detail 2 figure 4.4), making sure there are no cracks

in the battery containers;

 never add distilled water after recharging the batteries;
 clean the connection surfaces;
 the battery must be handled using appropriate lifting gear (see 2.3 for the weight of the battery).

1

2

FIGURE 4.4

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.6. CONTROL AND MONITORING DEVICES

4.6.1 DASHBOARD

The dashboard features a series of switches and indicator lights that activate/deactivate the various functions of
the machine. Each switch has a pictogram that clearly represents its function. The dashboard is illustrated in
figure 4.5 and the function of each switch is described in the table below.

POS. BUTTON

FUNCTION

1

BRUSH MOTOR PROTECTOR

2

SUCTION MOTOR LIGHT

3

ROTATING BEACON SWITCH

4

BRUSH ROTATION STOP

5

HORN

FIGURE 4.5

1 2 3 4 5 6 7

8 9 10 11 12 13

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

6

FORWARD/REVERSE GEAR SELECTOR

7

BATTERY INDICATOR

8

SUCTION MOTOR PROTECTOR

9

RAISE/LOWER BRUSHES

1 0

SQUEEGEE SUCTION SWITCH

1 1

LIGHT SWITCH

1 2

FUSE

1 3

KEY SWITCH

An emergency button is installed on the left side of the fairing on the BIG 38/48 floor scrubber-dryer for use
whenever a situation of real or presumed danger arises. Pressing the emergency button immediately stops all
machine functions. Once the problem has been resolved and the machine is ready for use, it can be restarted
simply by returning the emergency button to its original position. (see figure 4.6).

Push in case of
emergency

FIGURE 4.6

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.7. OPERATION

Washing is very intricate operation as it requires assessment of the proper brush to use, the right choice of
detergent and knowing whether or not a double cleaning action is required, all based on experience. To start the
washing operation, the brush motor switch and the suction switch must be turned on. When the washing
operation is completed, before completion of the drying, the water solenoid valve should be closed (see 4.7.5)
as this is independent from the forward travel pedal. If the floor is very dirty, a double cleaning action is
recommended: a first phase should be performed with the squeegee in the raised position and the brushes in
the working position; once the brushes have been started and the solenoid valve opened, a first run will be
carried out over an area of a few dozen square metres. The cleaning solution should remain on the floor to
dissolve the dirt with its solvent action until it is collected during the second run. Obviously, the second cleaning
action must be performed with the brushes lowered, the solenoid valve open and the squeegee in contact with
the floor (suction switch activated).

Before performing any operation, check that the guards are in position and properly
secured.

4.7.1 STARTING AND PREPARING THE MACHINE

Load the water through the cap on top of the solution tank (detail 1 figure 4.7).
The machine can now be started by turning the key switch, with the operator in the driving seat, and operating
the accelerator pedal to ensure that all the machine functions are working.

4.7.2 CHOICE OF DETERGENT

Choosing the right detergent is very important for efficient floor cleaning. A detergent that is too harsh could be
harmful. A non-foaming detergent or an anti-foaming additive should be used to avoid damage to the suction
motor. If these products are not available, common wine vinegar can be used, pouring 50 cc of it into the
recovery tank before starting the cleaning cycle.

Make sure that the detergent used is suitable for the type of surface to be cleaned.
FIORENTINI S.p.A. is not responsible for damages caused by detergents that are
excessively harsh or not suitable for the surface being cleaned.

1

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.7.3 ADJUSTMENT OF THE DRIVING POSITION

The adjustment systems on the machine allow a wide range of ergonomic positions to suit the operator's body.
The angle of the steering column can be conveniently adjusted to adapt the machine to the operator’s needs. To
adjust the steering wheel, follow the instructions below with reference to figure 4.8:

 loosen the fastening knob (detail 1);
 adjust the angle of the steering column (detail 2) to the position most suited to your needs;
 tighten the knob, making sure the steering column is firmly in place.

FIGURE 4.8

1

2

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.7.4 PEDAL FUNCTIONS

The machine control pedals consist of:

 a forward pedal (detail 1 figure 4.9). Pressing this pedal with your foot puts the machine into motion;
 a service/parking brake (detail 2 and 3 figure 4.9). The function of the brake is to slow the movement of

the machine until it stops. This pedal also has the function of engaging the parking brake. Press the
brake pedal fully down until it locks; to unlock it, press on the brake pedal and the release knob at the
same time (detail 3).

4.7.5 REGULATING THE DETERGENT SOLUTION

The amount of detergent released during washing can be adjusted by means of a special knob tap located
beside the machine’s steering column (see figure 4.10 detail 1).

FIGURE 4.10

FIGURE 4.9

2 1

3

1

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.7.6 SQUEEGEE ADJUSTMENT

To ensure perfect drying, t is essential for squeegee to be perfectly adjusted.
This type of squeegee is very effective for drawing the water towards the suction hose, but it needs to be
perfectly parallel with the ground. To adjust the squeegee:

 remove the key from the dashboard to avoid accidentally switching the machine on;
 turn the adjustment knob to adjust the angle of the squeegee (detail 1 figure 4.11). The right pressure is

achieved when the edge of the blade touches the floor at an angle of 45° - 60° from the ground.

 the pressure can be adjusted by turning the ring nuts that adjust the height of the squeegee wheels

from the floor (detail 2 figure 4.11)

It is very important that the squeegee is adjusted in order to keep the squeegee blades
parallel and resting firmly on the floor.

FIGURE 4.11

1

2

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.7.7 DRAIN HOSES

The floor scrubber-dryers have two hoses:

 a recovery tank drain hose (detail 1 figure 4.12);
 a suction hose (detail 2 figure 4.12).

To drain the water from the recovery tank, position the machine over a floor drain, release the tank hose (detail

1) and open the rubber cap at the end of the hose.

FIGURE 4.12

1

2

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.7.8 REPLACING THE BRUSHES

The following steps should be performed to replace the brushes:

 remove the key from the dashboard to prevent accidental starting.
 unscrew the knobs (detail 1 fig 4.13) then remove the protective casing covering the brushes (detail 2

fig. 4.13);

 then rotate each brush (detail 3 figure 4.13) until the knob on the brush is accessible (detail 4 figure

4.13) and press the knob to allow the brush to drop to the ground;

 replace the brush by positioning the hexagon of the female joint on the male joint (detail 5 figure 4.13)

on the brush motor;

 raise the brush vertically and rotate it until it automatically engages;
 replace the casing and tighten the knobs.

Before restarting the machine, ensure that all the details indicated above are properly
installed (including the guards).

FIGURE 4.13

1 2

4 3 5

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.7.9 REPLACING THE SQUEEGEE BLADES

The squeegee blades (figure 4.14) must be replaced when the contact edge becomes abrasive: a perfect edge
is essential for efficient drying.
The following steps should be performed to replace the blades:

 remove the squeegee from the machine by unscrewing the nuts securing it (detail 1) and place it on a

bench;

 remove the knobs fixing the blades to the squeegee (detail 2);
 take off the steel strips (detail 3) and remove the worn blades (detail 4);
 insert the new blades and the strips;
 tighten the knobs, replace the squeegee on the machine and then adjust it.

FIGURE 4.14

2 4 3

1

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

4.7.10 TILTING THE FAIRING

For easy access and maintenance on the electrical system, the BIG 38/48 machine features a system that
allows the front fairing housing the electrical system to tilt forward.

The front fairing is tilted as follows:

 remove the key from the dashboard to avoid accidentally starting the machine;
 unscrew the knob (detail 1 fig 4.15);
 tilt the fairing forward (detail 2) until it stops, taking care not to let it stop abruptly;
 carry out the necessary maintenance or repairs.
 following the reverse procedure to restore the machine.

1

2

FIGURE 4.15

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

5. MAINTENANCE

5.1. ROUTINE MAINTENANCE TABLE

Regular maintenance is essential to keep the floor scrubber-dryer in efficient working order and to extend
its working life for the entire the warranty period. A written record should be kept of all maintenance
operations performed on the form provided in this manual.

REQUIRED TASK

WORK PROCEDURE

FREQUENCY

Cleaning – Checks ­Replacement

Cleaning the recovery tank and suction motor filter

Daily

 Do not use corrosive substances.
 Do not use pressurised water

sprays.

 Checking the the suction hoses and

squeegee for dirt

Every week

 Checking the condition of the squeegee

suction blades

Every 2 weeks

 Checking the filter on the clean water tank

Every month

 Checking and adjusting the brake system

Every 3 months

 Checking the battery cable connections
 Checking the battery water level

Every 6 months

 Checking the condition of the brushes on

each motor

 Checking the electrical system
 Checking the safety devices

Once a year

 Carry out all checks, cleaning and replacements with the machine switched off.
 Maintenance operations should only be carried by authorised and trained personnel,

particularly with regard to electric and electromechanical parts. Use the proper tools and
equipment for each maintenance task.

 Contact Fioerentini S.p.A. exclusively for servicing and spare parts. (point 6.1. / 6.2.).

5.2. BATTERY MAINTENANCE

The operator can check the battery level while the machine is in operation from the indicator on the dashboard.
The indicator provides the following information:

 Green: battery fully charged
 Yellow: battery partially charged
 Red: battery low

Leave the battery compartment open while charging

 Do not smoke or use naked flames near batteries
 Be careful with battery fluid as it is corrosive
 Do not create sparks near batteries
 Battery gases are explosive
 Do not reverse the battery polarity

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

5.2.1 MEASURING SPECIFIC GRAVITY

The state of charge of the batteries should be tested while they are charging by using a hydrometer. Carry out
the following steps:

 insert the syringe hydrometer and draw a sufficient quantity of electrolyte to bring the float to the

surface;

 ensure that the top of it does not touch the rubber bulb or adhere to the glass walls through capillary

effect.

 to measure the specific gravity, after adding distilled water, you must wait for density to become uniform

in all the liquid contained in the element.

5.2.2 TOPPING UP THE WATER

 Add distilled water to each battery cell before charging to bring the liquid level to 6 mm above the

plates.

 This operation should be repeated whenever the level falls, or in any case, at intervals of no more

than one week.

5.2.3 CHARGE LIMITS

There is no need to charge the battery if, at end of a day's work, the specific gravity has not fallen below 1.24
(28 Bè). The highest recommended temperature is 45°C. If the electrolyte temperature increases to more than
10/12°C above the environment temperature, the batteries may be overcharged, regardless of the actual
temperature reached.

5.2.4 BATTERIES NOT IN CONTINUOUS SERVICE OR INACTIVE

Inactive batteries will lose their charge spontaneously (self-discharge). If a period of battery inactivity is
expected, the following steps should be taken:

 charge the batteries once a month with a "final" current intensity, until considerable gas is produced

in all the cells and voltage and specific gravity readings remain constant for 3-4 hours;

 this should be done even if specific gravity measurements show high levels. If the battery remains

idle for long periods of time, it should be stored in a dry place.

5.2.5 BATTERY DISPOSAL

Expired batteries are classified as "toxic and hazardous" waste. For disposal purposes, they should be
entrusted exclusively to specialised companies with specific authorisation, which must be checked by the
battery owner. If this is not immediately possible, “temporary storage” should be provided in compliance with
current legal requirements; this mainly involves:

 obtaining temporary storage authorisation;
 storing the batteries in plastic containers with a capacity not less than the volume of electrolyte

contained in the batteries and which can prevent any rainwater from seeping into the containers.

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

5.3. MAINTENANCE OF THE SUCTION MOTOR

The suction motor (figure 5.1) must be checked and cleaned. Every six months the brushes must be checked
and replaced, if necessary. Maintenance of the suction motor requires the following operations:

 after removing the key from the dashboard, raise the protective cover (detail 1);
 remove the suction hose (detail 2);
 unscrew the knobs (detail 3) and remove the plate (detail 4) connecting the motors to the machine;
 free the sponge filters beneath the motors in order to remove, wash and replace them;
 check the suction fan from the hole in the front of the suction motor;
 to check the brushes, first remove the plastic sleeve and then loosen the screws and remove the

two plastic brush supports;

 follow the reverse procedure for reinstallion.

Once the protective cover is raised, the recovery tank inspection cap (detail 5 figure 5.1) can be accessed,
which is useful whenever thorough cleaning of the recovery tank is deemed necessary.

FIGURE 5.1

1

2

3

4

5

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

5.4. CHECKING THE ELECTRICAL SYSTEM

The electrical system layout should be inspected and examined every year. Any defects, such as loose
connections or burnt cables, should be repaired immediately.

Any repairs to the electrical system should be carried out by a skilled technician.

Any maintenance work or repair not included under routine maintenance should be carried
out by specialised personnel authorised by FIORENTINI.

5.5. INSPECTION SUMMARY SCHEDULE

FREQUENCY

TYPE OF

TECHNICIAN

CHECKS

Safety devices

annual

professional

Electrical system

annual

Fiorentini

Braking system

every 3 months

professional

Complete revision

2 years

Fiorentini

Inspection of blade condition

2 weeks

operator

Inspection of battery water
level

every 6 months

operator

Inspection of battery cable
connections

every 6 months

professional

Inspection of the state of the
brushes in each motor

annual

professional

MAINTENANCE

Cleaning the recovery tank

daily

operator

Cleaning the filter on the
suction motor

daily

operator

Cleaning the filter on the
clean water tank

monthly

operator

Cleaning the suction hoses

weekly

operator

Cleaning the squeegee

weekly

operator

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

5.6. MAINTENANCE LOG

DATE

MAINTENANCE

OFFICER

TYPE OF SERVICE/NOTES

SIGNED BY

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

6. TECHNICAL SUPPORT

6.1. CONTACT DETAILS FOR TECHNICAL SUPPORT

For support under the warranty and/or to request maintenance or repairs, or for any information, please contact
the Fiorentini SpA Technical Support service at:

ING. O. FIORENTINI S.p.A.

“THE BEST IN FLOOR MACHINES”

BRANCHES:

20132 MILAN – Fax. [phone]

Via Palmanova 211/a – Tel. [phone]

00012 Guidonia Montecelio (ROME) – Fax. [phone] - 353314

Via B. Pontecorvo 20 – Tel. [phone] - 353015

FACTORY:

50030 PIANCALDOLI (FI) – Fax. [phone]

Loc. Rombola – Tel. [phone]

Many technical problems can be resolved through minor adjustments. Before contacting our Technical Support
service, we therefore advise you to carefully read this manual.
If a service intervention is required, clearly specify the type and details of the observed defect to help us provide
the best solution.

6.2. COMPLAINT REPORT

Fiorentini S.p.A. is conscious of its customer’s needs and of the value of customer feedback for the constant
improvement of its products. It has therefore prepared a form for reporting any defects found during use of the
BIG 38/48 floor scrubber-dryer.

START-UP AND OPERATION INSTRUCTIONS

BIG 38/48

Form filled out by:

Company:

Name:

Position within the

company:

Date:

Signature:

Machine description:

Machine:

Model:

Date of purchase:

Serial

number:

Valid warranty:

 YES

 NO

Hours of

service:

Machine work

environment:

Fault Description:

Code of the faulty

component:

Component

name:

Type of fault:

Brief description of the fault:



Faulty mechanical component



Faulty operation



Electrical system failure



Motor failure



Missing component



Excessive noise



Water leak



Other

Customer remarks:

Please write any comments and suggestions regarding the products and services supplied by Ing. O. Fiorentini S.p.A. below

MAINTENANCE

BIG 38/48

Mat. n.

Serial no. _____________________
Nr. de serie

Data di spedizione
Date of shipment _____________________
Date de spedition

Distributed by:

ING. O. FIORENTINI S.p.A.

“THE BEST IN FLOOR MACHINES”

BRANCHES:
20132 MILAN – Fax. [phone]
Via Palmanova 211/a – Tel. [phone]
00012 Guidonia Montecelio (ROME) – Fax. [phone] - 353314
Via B. Pontecorvo 20 – Tel. [phone] - 353015
FACTORY:
50030 PIANCALDOLI (FI) – Fax. [phone]
Loc. Rombola – Tel. [phone]