Superabrasive LAVINA ELITE L20NEU User manual

1
LAVINA ELITE
L20NEU/20NOEU
User Manual
www.superabrasive.com / [email protected]m

Superabrasive User Manual Original Language Lavina®20NEU/20NOEU 8/2020
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Table of Contents
LAVINA ELITE L20NEU/20NOEU.............................................................................................................................. 1
WARRANTY AND RETURNS.....................................................................................................................................................4
1. GENERAL INFORMATION ....................................................................................................................................................4
1.1 MANUFACTURER ..........................................................................................................................................................5
1.2 GENERAL DESCRIPTION .................................................................................................................................................5
1.3 ENVIRONMENTAL CONDITIONS ....................................................................................................................................5
1.4 VACUUM CONNECTION................................................................................................................................................. 5
1.5 LAVINA® 20EU MAIN COMPONENTS ............................................................................................................................. 5
1.6 TECHNICAL DATA .......................................................................................................................................................... 7
1.7 VIBRATIONS .................................................................................................................................................................. 7
1.8 CE-CERTIFICATION......................................................................................................................................................... 7
2. SAFETY INSTRUCTIONS RECOMMENDED USE......................................................................................................................8
2.1 PROHIBITED USE ...........................................................................................................................................................8
2.2 PREPARATION FOR WORK............................................................................................................................................. 8
2.3 PROTECTION DEVICES ...................................................................................................................................................8
2.4 ARREST FUNCTIONS ...................................................................................................................................................... 8
2.5 SAFE USE .......................................................................................................................................................................8
2.6 RESIDUAL RISKS.............................................................................................................................................................8
2.7 BEFORE YOU BEGIN ....................................................................................................................................................... 8
2.8 OPERATING MACHINE................................................................................................................................................... 9
2.9 AFTER WORK IS COMPLETED .........................................................................................................................................9
2.10 THE WORK AREA .........................................................................................................................................................9
2.11 PERSONAL PROTECTION EQUIPMENT (PPE)................................................................................................................9
2.12 OPERATOR .................................................................................................................................................................. 9
3. HANDLING AND TRANSPORTATION .................................................................................................................................. 10
3.1 ADJUSTING THE HANDLE............................................................................................................................................. 10
3.2 TURNING THE MACHINE FROM WORKING TO TOOL MOUNTING POSITION................................................................. 10
3.3 LIFTING ....................................................................................................................................................................... 10
3.4 STORAGE..................................................................................................................................................................... 11
4. OPERATION....................................................................................................................................................................... 11
4.1 PRELIMINARY CONTROLS............................................................................................................................................ 11
4.2 WATER FLOW CONTROL SYSTEM................................................................................................................................. 12
4.3 ADJUSTING AND MOUNTING TOOLS ........................................................................................................................... 13
4.4 VACUUM CONNECTION............................................................................................................................................... 13
4.5 CONTROL BOARD ........................................................................................................................................................ 14
4.6 STARTING THE MACHINE............................................................................................................................................. 14
4.7 OPERATING THE MACHINE .......................................................................................................................................... 14
4.8 STOPPING THE MACHINE............................................................................................................................................. 14
5. TOOLS AND ACCESSORIES............................................................................................................................................. 15
6. POPULAR TOOLS ............................................................................................................................................................... 15
7. MAINTENANCE AND INSPECTION ..................................................................................................................................... 17
7.1 CLEANING ................................................................................................................................................................... 17
7.2 CHECK HOURLY ........................................................................................................................................................... 17
7.3 CHECK DAILY ............................................................................................................................................................... 17
7.4 CHECK AND REPLACE AFTER THE FIRST 15 WORKING HOURS ....................................................................................... 17

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7.5 CHECK AND REPLACE EVERY 200 WORKING HOURS..................................................................................................... 17
7.6 CHECK AND REPLACE EVERY 400 WORKING HOURS..................................................................................................... 17
7.7 VACUUM..................................................................................................................................................................... 17
7.8 WATER LEAKS.............................................................................................................................................................. 17
7.9 MECHANICAL PARTS ................................................................................................................................................... 18
7.10 ELECTRICAL SYSTEM.................................................................................................................................................. 18
8. TROUBLESHOOTING.......................................................................................................................................................... 20
8.1 SEPARATING THE HEAD FROM THE CARRIAGE............................................................................................................. 21
8.2 DISMOUNTING/MOUNTING THE GUARD .................................................................................................................... 23
8.3 REPLACING POWER CORD AND PLUGS ........................................................................................................................ 23
8.4 DISMOUNTING TOOL HOLDER TO CHANGE V-RINGS AND FELT-RINGS......................................................................... 23
8.5 DISASSEMBLING AND MOUNTING TOOL HOLDER TO CHANGE BUFFERS AND ELASTIC ELEMENT ................................. 23
8.6 CORRECTING DEFLECTION OF THE USED PLANETARY CHAIN........................................................................................ 25
8.7MOUNTING NEW PLANETARY CHAIN .......................................................................................................................... 26
8.8 REPLACING THE PLANETARY DRIVING CHAIN WHEEL AND PLANETARY TENSIONER..................................................... 27
8.9 REPLACING PULLEY UNITS ........................................................................................................................................... 27
8.10 MOUNTING THE BELT................................................................................................................................................ 29
8.11 CHECKING THE TENSION OF THE BELT........................................................................................................................ 30
9. DISPOSAL .......................................................................................................................................................................... 30
10. MANUFACTURER’S CONTACTS........................................................................................................................................ 30
11. SPARE PARTS .................................................................................................................................................................. 31
11.1 GENERAL PARTS ........................................................................................................................................................ 31
11.2 GENERAL PARTS ........................................................................................................................................................ 32
11.3 BUMPER LAVINA 20NEU............................................................................................................................................ 33
11.4 BUMPER LAVINA 20NOEU ......................................................................................................................................... 34
11.5 VACUUM HOSE.......................................................................................................................................................... 35
11.6 CARRIAGE LAVINA 20NEU......................................................................................................................................... 36
11.7 CARRIAGE LAVINA 20NOEU ...................................................................................................................................... 37
11.8 WATER PUMP............................................................................................................................................................ 40
11.9 WATER BALL VALVE................................................................................................................................................... 40
11.10 WATER PUMP REGULATOR...................................................................................................................................... 40
11.11 WATER TANK........................................................................................................................................................... 41
11.12 CONTROL BOARD ASSEMBLY................................................................................................................................... 42
11.13 CONTROL BOX PARTS LAVINA 20NEU 380-400V ...................................................................................................... 44
11.14 CONTROL BOX PARTS LAVINA 20NOEU 200-240V ................................................................................................... 45
11.15 TOP COVER PARTS 1 ................................................................................................................................................ 46
11.16 GUARD ASSEMBLY................................................................................................................................................... 46
11.17 TOP COVER ASSEMBLY ............................................................................................................................................ 47
11.18 BOTTOM COVER 1PARTS ........................................................................................................................................ 47
11.19 PLANETARY DRIVE PARTS ........................................................................................................................................ 48
11.20 PULLEY UNITS.......................................................................................................................................................... 49
11.21 DRIVING PULLEY UNIT PARTS .................................................................................................................................. 50
11.22 TOOL HOLDER PARTS.................................................................................................................................................... 51

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WARRANTY AND RETURNS
WARRANTY POLICY FOR LAVINA®ELITE MACHINES
A warranty card must be submitted to Superabrasive within 30 days of purchase in order for the foregoing warranty to apply.
You can either mail a hard copy of the warranty card or submit it electronically - see page 2.
Superabrasive warrants, from the time of delivery and receipt by the original customer, new and unused products sold
by Superabrasive or Superabrasive-appointed distributors or dealers. Goods shall be free from defects in materials and
workmanship. Superabrasive or a Superabrasive-appointed repair facility shall either replace or repair any defects in the
Goods resulting from faulty design, materials, or workmanship. Products repaired or replaced during the warranty period
shall be covered by the foregoing warranty for the remainder of the original warranty period, or ninety (90) days from
date of the repair or shipment of the replacement, whichever is longer. Spare parts for repair will be either new or
equivalent to new.
Warranty period shall be 2 years from the time of delivery and receipt by the original customer, or 600 operating hours on
the machine - whichever occurs first. Superabrasive will cover the shipping charges for the transportation of the machine
to Superabrasive (or an approved repair facility) and back to the customer (within the contiguous 48 United States) in the
event that the damage occurs and is reported within 200 operating hours. Shipping charges, if covered by Superabrasive,
must be agreed upon in advance and approved by Superabrasive. Thereafter, the customer will have to cover the shipping
charges to Superabrasive and back. Superabrasive will not warranty Goods after a period of 2 years from the time of delivery
and receipt by the original customer, or 600 operating hours on the machine - whichever occurs first.
Superabrasive shall not be liable for any defects that are caused by circumstances that occur after the Goods have been
delivered and whilst the Goods are in the possession of the purchaser. Furthermore, the warranty does not include
normal wear and tear or deterioration. Wear parts are not warranted. Superabrasive is not liable for defects arising out
of use of non-OEM parts.
The Warranty is void if the purchaser has not followed the maintenance plan stipulated by the machine’s manual and
warranty card. The warranty is void if the purchaser repairs said Goods himself, or if repairs are conducted by a repair
facility that is not approved by Superabrasive. Superabrasive’s liability does not cover defects which are caused by faulty
maintenance, incorrect operation, faulty repair by the purchaser, or by alterations conducted without Superabrasive’s prior
written consent. The same applies to any alterations of the Goods or services performed by another party other than
Superabrasive, a Superabrasive-appointed distributor, or a Superabrasive-approved repair facility. The warranty is not
applicable on a defect that arises due to tools or parts that are not original to Superabrasive. Replaced defective parts shall
be placed at Superabrasive’s disposal and shall become property of Superabrasive. If such defective parts are replaced
within the warranty period, the shipping charges will be covered by Superabrasive. In warranty complaint cases, when no
defects are found for which Superabrasive is liable, Superabrasive shall be entitled to compensation for the labor, material
cost, and shipping charges, incurred by Superabrasive as as a result of the complaint.
The warranty herein is non-transferable, and only applies to the original owner or purchaser of the machine.
RETURN POLICY FOR LAVINA®ELITE MACHINES
The Lavina®ELITE machines may be returned, subject to the following terms:
In no case, a machine is to be returned to Superabrasive Inc. for credit or repair without prior authorization. Please
contact Superabrasive Inc. or your local distributor for an authorization and issuance of a return authorization number.
This number along with the serial number of the machine must be included on all packages and correspondence.
Machines returned without prior authorization will remain property of the sender and Superabrasive Inc. will not be
responsible for them. No machines will be credited after 90 days from the date of invoice.
All returns must be shipped freight prepaid. Returned machines may be exchanged for other equipment or parts of equal
dollar value. If machines are not exchanged, they are subject to a fifteen percent (15%) restocking fee.
1. GENERAL INFORMATION
This owner’s manual is intended for the operator of the Lavina®ELITE machine, the servicing technician as well as for anyone
involved with operating or servicing the machine. We recommend that you read the instructions very carefully and follow

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them strictly. The manual includes information about assembling, using, handling, adjusting and maintaining your Lavina®
ELITE floor grinding and polishing machine.
1.1 MANUFACTURER
Superabrasive was founded in 1987, as a manufacturer of high quality diamond tools for the stone and concrete industry.
Today, Superabrasive is one of the world’s leading companies in the production of diamond tools and floor grinding
machinery. At Superabrasive, we strive to deliver the very best solutions to our customers, and enable them to work more
efficiently.
1.2 GENERAL DESCRIPTION
The Lavina®ELITE machine is intended for grinding, polishing and buffing concrete, marble, granite, limestone and terrazzo
surfaces with diamond tools. Additionally, the machine could be used for grinding wood floor surfaces.
The Lavina®ELITE machine is a three-disc machine, which can be used wet or dry.
For best results, use only tools manufactured or recommended by Superabrasive and its distributors.
The Lavina® ELITE machine is manufactured and fitted for the above-mentioned applications only! Every other
use may possess risks to the persons involved.
1.3 ENVIRONMENTAL CONDITIONS
The temperature range for operating the Lavina® ELITE machine outdoors is between 41°F and 86°F or 5°C and 30°C.
Never use the Lavina® ELITE machine during rain or snow when working outdoors. When working indoors, always
operate the machine in well‐ ventilated areas.
1.4 VACUUM CONNECTION
A connection for a vacuum dust extractor is located on the carriage. The Lavina® ELITE machine does not include a vacuum
dust extractor. The customer must purchase the vacuum dust extractor separately. The vacuum dust extractor must be
adapted for floor grinders and have a minimum air displacement of 310m3/h with a negative vacuum of 21 kPa.
1.5 LAVINA® 20EU MAIN COMPONENTS
The Lavina®ELITE machine is made of two main component sections:
1.5.1 Carriage which contains:
Handle - the handle on the frame is adjustable in height and allows the operator to work in a correct and safe
posture (see point 3. Handling and transportation).
LED lights - the LED lights (Fig.1.1; Fig.1.2) enables the operator to work in darker areas. Existing lighting
system does not replace adequate overhead lighting.
The control panel (fig.1.3) is positioned on top of the frame and contains buttons and switches for start/stop
the machine also for the pump, lights, RPMs control switch, hour meter unit, EMG button and the USB port
for charging your phone.
The water tank is on the opposite side of the frame, so that the weight of the water does not affect
the operation of the machine. The frame weight, on the other hand, is fully absorbed by the driving
wheels. An electric pump sprays the water through a front mist system or internal under cover.
Power box
Water pump
1.5.2 Machine head which contains:
The Electric motor - its mounted on the base plate and it is driving the three heads with a belt system.
The planetary motion - it derives from the main engine, driven by a simplex roller chain.
The self‐leveling Guard is designed to have contact with the surface. Anytime, no matter the height
of the tool used.
 “Quickchange” tool holder is designed to hold the tools with “Quickchange”connection (All of our new
tools use the “Quickchange” connection and there is no more foam holders).

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Figure 1.3
Figure 2.3
Figure 1.1
Figure 1.2

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1.6 TECHNICAL DATA
1.7 VIBRATIONS
The vibrations of the machine are within the limits of directives and harmonized standards from the European Union when
the
Lavina® ELITE is operated with the recommended tools and in normal conditions.
SONOROUS EMISSIONS
The sonorous emissions are within the limits of directives and harmonized standards from the European Union when the
Lavina® ELITE is operated with the recommended tools and in normal conditions. However, as previously stated, the
operator must wear ear protectors.
LABEL DATA
The data on the label provides the correct Voltage and kW (needed for operational purposes);
Weight (needed for transportation purposes); production year and serial number (needed for maintenance purposes).
CUSTOMER SERVICE
For customer assistance and technical support call your local distributor or call Superabrasive Inc. at
1‐800‐987‐8403 or visit us at: www.superabrasive.com , where you can download a copy of this manual.
1.8 CE-CERTIFICATION
THE LAVINA® ELITE MACHINE IS DESIGNED TO OPERATE CORRECTLY IN AN ELECTROMAGNETIC ATMOSPHERE OF
INDUSTRIAL TYPE AND IS EQUIPPED WITH ALL THE MECHANICAL AND ELECTRICAL SAFETY PROTECTIONS IN CONFORMITY
WITH THE FOLLOWING EUROPEAN CEE RULES AND REGULATIONS:
THE LAVINA® ELITE MACHINE COMPLIES WITH THE SAFETY DIRECTIVE FOR MACHINES 2006/42/EC, THE EMC DIRECTIVE
2004/108/EC AND THE LOW VOLTAGE DIRECTIVE 2006/95/EC.
ALSO COMPLIES WITH THE NORMS IN USE BDS EN ISO 12100, BDS EN 13862,BDS EN ISO 13857, BDS EN 349, BDS EN ISO
13850,BDS EN 13732-1, BDS EN 953, BDS EN ISO 13849-1,BDS EN 1037, BDS EN ISO 5349-1, BDS EN ISO 11201, BDS EN ISO
3744, BDS EN 1033:2002, BDS EN 60204-1,BDS EN 1837, BDS EN 61000-6-4, BDS EN 61000-6-2, BDS EN 61000-4-2, BDS EN
61000-4-4, BDS EN 61000-4-5,BDS EN 61000-4-11, BDS EN 55016-2-1
TEST RESULTS ARE A PART OF THE MACHINE’S TECHNICAL INFORMATION AND CAN BE SENT UPON A SPECIAL REQUEST.
THE MACHINE IS DELIVERED WITH THE CE MARK EXPOSED AND PROVIDED WITH A EC DECLARATION OF CONFORMITY.
Lavina® 20NEU
Lavina® 20NOEU
Voltage/Hz
3 ph x 380-400V 50-60Hz
1 ph x 200-240V 50-60Hz
Amperage
Max 15 Amps
Max 15 Amps
Power
5.5 kW
7.5 HP
5.5 kW
7.5 HP
Tool holder rpm
400-1100 rpm
400-1100 rpm
Direction off rotation
The heads have clockwise / right rotation
The heads have clockwise / right rotation
Working width
510mm
20”
510mm
20”
Tool diameter (QC Plate)
3x 225 mm
3x 9”
3x 225 mm
3x 9”
Weight
265 kg
584 lbs
265 kg
584 lbs
Grinding pressure
Weights upward
85 kg
187 lbs
85 kg
187 lbs
Grinding pressure
Weights downward
130 kg
287 lbs
130 kg
287 lbs
Application
wet and dry
wet and dry
Vacuum hose port
Cam lock E250
or hose 2”
Cam lock E250
or hose 2”
Water tank capacity
20 l
5.2 gal
20 l
5.2 gal
Water feed
Peripheral and front mist with pump
Peripheral and front mist with pump
Cable length
17.4 m
57 ft
17.4 m
57 ft
Machine LxWxH
1709x557x1195 mm
67.3x21.9x47”
1709x557x1195 mm
67.3x21.9x47”
Packing LxWxH Crate 1
1390x710x1400 mm
54.7x28.5x55.1”
1390x710x1400 mm
54.7x28.5x55.1”

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2. SAFETY INSTRUCTIONS RECOMMENDED USE
The LAVINA® ELITE machine is
designed and manufactured to grind and polish concrete, terrazzo, and natural stone floors. It can be used for renovations as
well as for polishing. The machine is designed for dry or wet use. When using it dry, use a vacuum of appropriate size. For
more information, please refer to the chapter on handling the
vacuum connection.
2.1 PROHIBITED USE
The machine MUST NOT be used:
For applications different from the ones stated in the General
Description chapter.
For not-suitable materials.
In environments which: Possess risks of explosion
Possess high concentration of powders or oil substances in the air
Possess risks of fire
Feature inclement conditions. Possess electromagnetic radiation.
2.2 PREPARATION FOR WORK
Make sure that You have closed
the work area, so that no person unfamiliar with operating the machine can enter the area. The tool plate and tools are adjusted
to the machine properly. There are no missing parts of the machine.
The machine is in upright working position. The protection devices are working properly. The electrical cable is free move and
follow the machine easily. In order to keep the electrical cable from being
damaged, no vehicle should cross the zone where electrical cables are situated.
2.3 PROTECTION DEVICES
The machine is equipped with several protection devices including the following:
An emergency stop button
A protection skirt and hood for protecting the tool plates.
These devices protect the operator and/or other persons from potential injuries. Do not remove them. On contrary, before
using the machine, please ensure that all protection devices are mounted and function properly. The Security plate prevents
the QuickChange pads from loosening during use.
2.4 ARREST FUNCTIONS
Functions of arresting the machine are following: Button to stop the motor (category 1)
Emergency button (category 1)
2.5 SAFE USE
The LAVINA® ELITE is designed to
eliminate all risks correlated with its use. However, it is not possible to eliminate the risks of an eventual accident with the
machine. Unskilled or uninstructed operator may cause correlated residual risks. Such risks are:
Position Risks due to operator’s incorrect working position Tangling up Risks due to wearing inappropriate working clothes
Training Risks due to lack of operational training
NOTE: In order to reduce all consequences of the above- mentioned risks, we advise that machine operators follow the
instructions in the manual at all times.
2.6 RESIDUAL RISKS
During the normal operating
and maintenance cycles, the operator is exposed to few residual risks, which cannot be eliminated due to the nature of the
operations.
2.7 BEFORE YOU BEGIN
Working area must be clear
from any debris or objects.
A first-time operator must always read the manual and pay attention to all safety instructions.
All electric connections and cables must be inspected for potential damages.
Ground wire system of the power supply must be also inspected. Perform general daily inspections of the machine and inspect
the machine before each use.
Always inspect the safety devices: Mount the Security plate for the Quickchange pads.
The emergency break must be clear and working

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The tool protector must be working
The machine must be clean
Never operate the machine in the rain!
Confirm that there are no missing parts especially after
transportation, repair, or maintenance.
Before filling the water tank with water make sure the machine is not working and the main switch is turned off.
Before turning on the machine make sure that the base is placed on the floor, the machine MUST NOT be in an upright
position when turned on!
2.8 OPERATING MACHINE
When operating the LAVINA® ELITE , make certain that there is no one, but you around the machine.
Never leave the machine unattended while working.
The electrical cable must move freely and must be damage-free.
The water hose must move freely and must be damage-free.
Check the floor you will work on to make sure it is not too uneven. If this is the case, it may damage the machine.
2.9 AFTER WORK IS COMPLETED
Clean the machine and its surroundings properly
Empty and clean the water tank
Unplug the machine and wind up the electrical cable
Store the machine in a safe place
2.10 THE WORK AREA
Make certain that people or vehicles do not enter the work area.
Avoid cables and hoses being in the way. Always check the floor for debris
2.11 PERSONAL PROTECTION EQUIPMENT (PPE)
Always wear safety shoes when working with the machine. Always wear ear protectors
when working with the machine.
All personnel in the immediate work area must wear safety glasses with side shields.
Always wear safety gloves when changing the tools. Always wear clothes suitable for the work environment.
2.12 OPERATOR
The LAVINA® ELITE machine.
The operator must know the machine’s work environment. Only one operator at a time can work with the machine. The
operator must be properly trained and well instructed prior operating the machine.
The operator must understand all the instructions in this manual.
The operator must understand and interpret all the drawings and designs in manual.
The operator must know all sanitation and safety regulations pertaining to the operation of the machine.
The operator must have floor grinding experience.
The operator must know what to do in case of emergency.
The operator must have an adequate technical knowledge and preparation.

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3. HANDLING AND TRANSPORTATION
3.1 ADJUSTING THE HANDLE
The Handle on the frame is adjustable in height and allows the operator to work in a correct
and safe posture (Fig. 3.1, Fig. 3.2, Fig. 3.3, and Fig.3.5). Choose the upright position to move
easy the machine.
3.2 TURNING THE MACHINE FROM WORKING TO TOOL MOUNTING POSITION
Put the handles of the carriage as shown on (Fig.
3.5). Ensure that the water tank is empty before
flipping the machine. Push the handles and flip in
position shown on (Fig. 3.6). If necessary, help by
placing your foot on the heel near the control box.
Always keep both rear wheels locked (Fig. 3.7).
Unlock the wheels (Fig. 3.8) only when you wish to
move the machine.
3.3 LIFTING
Lifting the machine by crane is possible by using the handles of the carriage (see fig. 3.5 and fig. 3.6).Do not lift any other
loads on the machine. Always use hoisting equipment rated for 300 kg (660 lbs) or greater.
Figure 3.1
Figure 3.2
Figure 3.3
Figure 3.4
Figure 3.7
Figure 3.8
Figure 3.5
Figure 3.6

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3.4 STORAGE
Always store the LAVINA® ELITE machine in a dry place.
Never transport the LAVINA® ELITE machine unprotected; it
may be damaged if transported unprotected and exposed to
rain or snow.
When the machine is in storage and the temperature may
fall down to or below 32F (or 0oC). You should empty the
water from the system:
-Pull out the hose of the tank (Fig.3.7)
-With compressed air blow out the water from the
system in the two positions of the turn-cock.
4. OPERATION
4.1 PRELIMINARY CONTROLS
Inspect the working area as explained in the safety instructions. Fill in the water tank for wet use or connect the vacuum
extractor and ensure that the vacuum hose is clear and it will follow the machine easily.
Make sure that the electrical motor is connected with the power box and then you can connect the power cable with the
electricity and start the machine.
Figure 3.7

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4.2 WATER FLOW CONTROL SYSTEM
. The operator can direct water to be sprayed in front of the machine (Fig.4.1) by positioning the lever in the
horizontal position (Fig.4.2). Water will spray under the cover of the machine when the lever is in the vertical
position (Fig.4.2). The pressure regulator is located above the lever (Fig.4.3) and controls the water pressure in the
system. You can see the whole water flow control system - main and filtering parts in fig4.4. Fig. 4.5 and fig. 4.6
shows how to remove and clean the filter mesh. In the instances where more water is required to spray under the
cover of the machine, the orifice plate (shown on pos.8 of table 11.9 in „spare pats“ ) can be removed.
ALWAYS USE CLEAN WATER TO PROTECT THE SYSTEM FROM DIRT.
Figure 4.1
Figure 4.2
Figure 4.3
Figure 4.4
Figure 4.5
Figure 4.6

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Figure 4.7
Figure 4.7
4.3 ADJUSTING AND MOUNTING TOOLS
Lavina® 20EU uses tool holder A63. With this new holder every one of our tools uses the “Quickchange” connection. To
change the tools you need first to unlock the butterfly (fig 4.6 in blue) by using the key we provide you (you can see it in the
pictures fig. 4.7) remove the security plate (fig 4.6 in red) then load the tools you want and insert the security plate again so
the tools cannot go backwards, rotate and lock the butterfly (as shown in fig.4.7). As you can see in fig. 4.6, for some of the
new tools you need to remove the security plate as they don’t need locking system at all but for the others always make sure
that the tools are securely locked.
In Lavina ELITE the holder is initially mounted with 3 buffers.
Mount the tools only after ensuring that there is enough diamond bond material left. Be sure that the plates are always
clean before mounting.
WARNING: Always secure the Quick Change tools with the butterfly (Fig.4.6 in blue), lock with the tool holder key
(Fig.4.7) and make sure that the butterfly is securely locked and it holds the security plate not to fall off.
4.4 VACUUM CONNECTION
To connect a vacuum cleaner, the Lavina ELITE is supplied with vacuum hose Cam Lock inlet C250 / vacuum hose diam.
2, 5 in (63mm) (Fig.4.8). You can also dismount the Cam Lock adaptor and connect a hose with outside diam. 2in.
Figure 4.8
Figure 4.6
Figure 4.6

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4.5 CONTROL BOARD
1. ALARM glowing button. Usually glows when
you pressed the EMG button.
2. USB charger.
3. STOP button which stops the motor.
4. EMERGENCY button used to stop the motor in
case of emergency.
5. POWER glowing button - it glows when the
machine is connected to the electricity.
6. Forward/Reverse switch. Select forward for
clockwise rotation of the grinding plates or reverse
for counterclockwise rotation of the grinding plates
(recommended configuration). The preferred
operating direction should be when the switch is in
the forward position. The proper direction of rotation
of the motor (counterclockwise) is indicated by an
arrow on its cover.
7. Water pump switch. Glows in orange when the
water pump is working.
8. LED lights switch
9. QR code. When you scan it with your phone for
example, it will redirect your browser to Lavina
manuals page.
10. READY ON / OFF switch. If you want to start the motor it must be ON as it puts the inventor into standby mode (it
glows
when it’s turned ON). If it’s off the inventor will be out of standby mode and you cannot start the motor. The switch
returns to its starting position after being released.
11. Cup holder.
12. Potentiometer.Controls the RPM of the grinding plates in a range of 300-1100 rpm.
13. RUN button. Start the motor (ready ON/OFF switch must be ON).
14. Digital Tachometer. Indicates the revolution per minute of the grinding plates (not the revolution per minute of the
entire unit).
15. Reset button. Resets the alarm of the inverter.
16. Phone holder.
4.6 STARTING THE MACHINE
First, follow the directions in the chapter on Safety Devices and Safety Instructions. Next, release the emergency stop (4), turn
the Ready switch (10) to the ON position to put the machine in standby mode. Check the potentiometer (12), and ensure that
it is set to the working speed. If you are working wet, add water to the floor surface by starting the pump (7). If you are working
dry make sure your machine is connected to the vacuum unit. Finally, hold the machine firmly and push the RUN button (13).
4.7 OPERATING THE MACHINE
Guide the machine in straight lines across the floor, slightly overlapping the previously completed surface with
each new line. Work at a constant speed, allowing the tools time to work at a speed appropriate for the tools’ grit
size. Avoid vibrations. Do not stop the machine while tools are still running as they will mark the surface of the
floor. When working wet, select the destination of the water feed with the water tap (fig. 4.2) and periodically run
the pump to release water onto the floor surface. Starting the pump is possible only if the machine motor is on.
When working dry, check the floor surface periodically for dust accumulation. Check regularly to see if you’re
vacuum works properly.
4.8 STOPPING THE MACHINE
The stopping of the machine must be done gradually until the motor stops. Do not stop moving the machine before the motor
comes to rest, as the tools could damage the surface.
To stop the machine:
1.Push the STOP button (3) .
2.Turn the ON/OFF (10) switch in position OFF, this will cut the voltage to the invertor and the green light will turn off.
Fgure 4.4
Fgure 4.4
Figure 4.9
Figure 4.9

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5. TOOLS AND ACCESSORIES
The tool holder key (Fig. 5.1) is used for mounting and dismounting the security plate. Always use the key for mounting.
Item number is A03.00.00.00
Security Plate (Fig.5.2) used to ensure the “Quickchange” tools.
Item number is A63.00.01
Figure 5.1
Figure 5.2
Figure 5.2

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6. POPULAR TOOLS
The heads have clockwise / right rotation. Use the black PCDs and Carbide
Scrapers / available reverse /.
RECOMMENDED TOOLS
Note: All of our new tools use the “Quickchange” connection as
mentioned above.
QuickChange System and Tooling feature extremely fast and convenient tool changes, and a long tool
life, providing for great long‐term cost savings. The QuickChange pads are produced in four different
bonds for super hard, hard, medium and soft concrete, in a variety of grit sizes. They are offered with 1
or 2 buttons or rectangular segments, which allows you to customize the aggressiveness of the cut.
Calibra grinding discs: our popular ceramic bond discs are designed for the removal of
difficult scratches and they save you valuable time by eliminating the need for multiple
passes with metal tools. They can be used wet or dry, and are best for hard concrete
applications.
NATO®polishing discs feature a special resin formula designed for both wet and dry
applications and a unique design with wide channels allowing for work on a cleaner
surface and ensuring a quality polish.
V‐HARR®Premium Polishing Pads are designed for mechanically polishing and
restoring concrete; also ideal for terrazzo and hard stone floors. Dry use is strongly
recommended.
Use Only Superabrasive’s Recommended Tools. For More Tooling Options, Visit www.superabrasive.com

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7. MAINTENANCE AND INSPECTION
7.1 CLEANING
Keep your machine clean. Cleaning the machine on a regular basis will help detect and solve potential problems before
they cause damage to the machine. Most importantly, check and clean the tool plate connections, vacuum hoses, water
tank and the Propane installation.
7.2 CHECK HOURLY
7.3 CHECK DAILY
After operating the Lavina® ELITE machine, the operator should conduct a visual inspection
of the machine. Any defect should be solved immediately. Pay attention to power cords,
plugs and vacuum hoses, loose bolt or screws.
Tool holders: Buffers and elastic element are consumables and must be visually checked
daily and replaced if needed. See that flanges or discs are mounted and locked well in place.
The key lock holders (butterflies) should be also checked.
Check the rubber buffers and fixing of the holders. The flange holding the buffers (Fig.7.1_1)
has to be firmly fixed to the unit. A gap seen there means that there are loose screws fixing
the holder. The screws have to be tightened immediately for safe operation. Working with
loose screws on the holder could also cause bad damages on the machine. Tightening force
of the screws has to be 22...25N.m(16...18 ft/lbs).
It is very important to regularly check the screws (Fig.7.1_2) that fix the “Quickchange”
holder to the safety part, so that the holder will not fly away if the buffers get damaged.
“Quickchange” should be clean.
7.4 CHECK AND REPLACE AFTER THE FIRST 15 WORKING HOURS
Check the belt tension after 15 hours working with the machine.
The bottom cover has a control cover (Fig.7.2) that allows fast and easy control and
correction of the belt. It is recommended to check the tension of the belt after the first 15
hours and to tighten if necessary. For the correct tension, see TROUBLESHOOTING
“mounting the belt”. Every time you open the control cover, mount back all the screws.
7.5 CHECK AND REPLACE EVERY 200 WORKING HOURS
Every 200 working hours the operator should inspect all parts of the machine carefully.
Most importantly, inspect and clean the tool plate connections, vacuum hoses and water
tank. Also, check the water flow. Check the guard assembly. Make certain the wheels are clean and rotate properly.
Inspect the control buttons. If there are defective control parts, they should be replaced immediately. Replace worn
vacuum‐and water hoses.
Carefully inspect the seal rings and bearings of the grinding units, and replace any showing signs of excessive wear.
For more information, refer to chapter troubleshooting below.
Open the service cover on the motor base (Fig 7.2) (Fig 7.3) to check of the
planetary chain. Lubricate the chain with special lubricant for chains and correct
the sag if needed. For sagging correction (See TROUBLESHOOTING).
Dismount the tool holders (See Troubleshooting) replace all parts (elastic element,
buffers, and sealers) with the slightest damage or consume. Return machine to
authorized service center for overall checkup of the Engine. For Propane safety,
have the machine serviced by a Certified Technician, including emission check.
7.6 CHECK AND REPLACE EVERY 400 WORKING HOURS
Besides the checks of 200 working hours, replace sealer and V‐rings like described in
chapter “TROUBLESHOOTING REPLACING BELT AND PULLEY UNITS. Check if belts
and bearings are in good condition, change if needed.
Return machine to authorized service center for overall checkup of the Engine. For Propane safety, have the machine
serviced by a Certified Technician, including emission check.
7.7 VACUUM
As stated previously, frequently check hoses and othe r parts for clogging.
7.8 WATER LEAKS
Replace any leaking parts immediately as the water could damage your machine
Figure 7.1
Figure 7.2
Figure 7.3
Figure 7.3

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7.9 MECHANICAL PARTS
Parts such as the belts, seal rings, cap rings, spiders and buffers and guard assembly are subject to wear and should be
replaced as needed.
7.10 ELECTRICAL SYSTEM
Dust should not enter the control box, as it will destroy the contacts. Remove (blow out) any dust present
LAVINA® 20NEU ELECTRICAL SCHEMES WITH YASKAWA INVERTER 380-400 VOLT
OPERATION
INTERVAL
Daily
Every 200
Hrs.
Every 400
Hrs.
Inspect power cords, plugs and vacuum hoses, loose bolt or screws.
X
Check the rubber buffers, elastic element and fixing of the holders
X
Inspect and clean the tool plate connections
X
Inspect and clean water tank, filters mesh and misting nozzle
X
X
Inspect the seal rings and bearings of the grinding units
X
Check the planetary chain and lubricate
X
X
Replace Felt-Ring and V‐rings
X
Check belts and bearings
X

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LAVINA® 20NOEU ELECTRICAL SCHEMES WITH YASKAWA INVERTER 2000-240 VOLT

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