Superabrasive LAVINA ELITE Series User manual

LAVINA ELITE L20NE
User Manual
Tech Support Line: 800-987-8403 | www.superabrasive.com | [email protected]

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Superabrasive User Manual Original Language Lavina®20NE 1/2019
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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.

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LAVINA ELITE L20NE..................................................... 1
1. GENERAL INFORMATION ...................................................... 5
1.1 MANUFACTURER ................................................................. 5
1.2 GENERAL DESCRIPTION ....................................................... 5
1.3 ENVIRONMENTAL CONDITIONS........................................... 5
1.4 VACUUM CONNECTION ....................................................... 5
1.5 LAVINA® 20NE MAIN COMPONENTS ................................... 5
1.6 TECHNICAL DATA ................................................................. 7
1.7 VIBRATIONS ......................................................................... 7
2. SAFETY INSTRUCTIONS ......................................................... 8
2.1 RECOMMENDED USE................................................................. 8
2.2 PROHIBITED USE ...................................................................... 8
2.3 PREPARATION FOR WORK ........................................................... 8
2.4 PROTECTION DEVICES................................................................ 8
2.5 ARREST FUNCTIONS .................................................................. 8
2.6 SAFE USE ................................................................................ 8
2.7 RESIDUAL RISKS........................................................................ 8
2.8 BEFORE YOU BEGIN .................................................................. 8
2.9 OPERATING MACHINE ......................................................... 8
2.10 AFTER WORK IS COMPLETED............................................. 8
2.11 THE WORK AREA ................................................................ 9
2.12 PERSONAL PROTECTIVE ..................................................... 9
EQUIPMENT (PPE) ..................................................................... 9
2.13 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
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................... 20
8.2 DISMOUNTING/MOUNTING THE GUARD .......................... 22
8.3 REPLACING POWER CORD AND PLUGS ........................................ 22
8.4 DISMOUNTING TOOL HOLDER TO CHANGE V-RINGS AND
FELT-RINGS .............................................................................. 22
8.5 DISASSEMBLING AND MOUNTING TOOL HOLDER TO
CHANGE BUFFERS AND ELASTIC ELEMENT .............................. 23
8.6 CORRECTING DEFLECTION OF THE USED PLANETARY CHAIN
................................................................................................. 24
8.7MOUNTING NEW PLANETARY CHAIN................................. 25
8.8 REPLACING THE PLANETARY DRIVING CHAIN WHEEL AND
PLANETARY TENSIONER........................................................... 26
8.9 REPLACING PULLEY UNITS ........................................................ 26
8.10 MOUNTING THE BELT ............................................................ 28
8.11 CHECKING THE TENSION OF THE BELT ........................................ 29
9. DISPOSAL............................................................................ 29
10. MANUFACTURER’S CONTACTS .......................................... 29
11. SPARE PARTS .................................................................... 30
11.1 GENERAL PARTS LAVINA 20NE ......................................... 30
11.2 BUMPER 20NE................................................................. 31
11.3 VACUUM HOSE 20NE ....................................................... 32
11.4 CARRIAGE LAVINA 20NE........................................................ 33
11.5 WATER PUMP 20NE ......................................................... 35
11.6 WATER BALL VALVE 20NE ...................................................... 35
11.7 WATER PUMP REGULATOR 20NE ............................................ 36
11.9 CONTROL BOARD ASSEMBLY 20NE ................................. 37
11.10 LAVINA 20NE CONTROL BOX PARTS 200-240V............... 38
11.11 TOP COVER PARTS 120NE.............................................. 39
11.12 GUARD ASSEMBLY 20NE..................................................... 39
11.13 TOP COVER ASSEMBLY 20NE......................................... 40
11.13 LAVINA®20NE TOP COVER ASSEMBLY ............................. 40
11.14 BOTTOM COVER 1PARTS 20NE...................................... 40
11.15 PLANETARY DRIVE PARTS 20NE..................................... 41
11.16 PULLEY UNITS 20NE ...................................................... 42
11.17 DRIVING PULLEY UNIT PARTS 20NE ............................... 43
11.18 LAVINA®20NE TOOL HOLDER PARTS ................................... 44

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 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® 20NE 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 .

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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).
Figure 1.3
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 .
Lavina® 20NE
Voltage/Hz
1 or3 ph x 200-240V 50-60Hz
Amperage
Max 30 Amps
Power
5.5 kW
7.5 HP
Tool holder rpm
300-1100 rpm
Working width
510mm
20”
Tool diameter (QC Plate)
3x 225 mm
3x 9”
Weight
265 kg
584 lbs
Grinding pressure
Weights upward
85 kg
187 lbs
Grinding pressure
Weights downward
130 kg
287 lbs
Application
wet and dry
Vacuum hose port
Cam lock E250
or hose 2”
Water tank capacity
20 l
5.2 gal
Water feed
Peripheral and front mist with pump
Cable length
17.4 m
57 ft
Machine LxWxH
1709x557x1195 mm
67.3x21.9x47”
Packing LxWxH Crate 1
1390x710x1400 mm
54.7x28.5x55.1”

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2. SAFETY INSTRUCTIONS
2.1 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.
2.2 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.
2.3 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.
2.4 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.
2.5 ARREST FUNCTIONS
Functions of arresting the
machine are following: Button to stop the motor
(category 1)
Emergency button (category 1)
2.6 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.
2.7 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.
2.8 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
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!
2.9 OPERATING MACHINE
When operating the LAVINA® X, 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.
2.10 AFTER WORK IS COMPLETED
Clean the machine and its
surroundings properly
Empty and clean the water tank

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Unplug the machine and wind up the electrical cable
Store the machine in a safe place
2.11 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
2.12 PERSONAL PROTECTIVE
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.
2.13 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.
Figure 3.5 Figure 3.6
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
LIFT HERE!!!

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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 horizontal
position (Fig.4.2). The water will spray under the cover of the machine when the lever is in 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. Also in fig. 4.5 and fig. 4.6 is shown how to
remove the filter mesh and clean it.
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
4.3 ADJUSTING AND MOUNTING TOOLS
Lavina® 20NE 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 20E 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 20NE 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

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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
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

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6. POPULAR TOOLS
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

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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® 20NE ELECTRICAL SCHEMES WITH YASKAWA INVERTER 200-240 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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20
8. TROUBLESHOOTING
8.1 SEPARATING THE HEAD FROM THE CARRIAGE
1. Unscrew the four bolts to remove the panel fig. 8.2-1.
2. Disconnect the flexible hose under the panel fig. 8.2-2. All water connections in the machines are with fitting types
“Push-in” and “Release button”.
3. Disconnect the cable of lamp and remove the lamp fig. 8.2-3.
4. Unscrew the four bolts to remove the cover fig. 8.2-4.
5. Disconnect the flexible hose which comes from the pump fig. 8.2-5.
6. Disconnect the engine cable from the power box fig. 8.2-6.
7. Release the clamp and remove the suction hose from the head fig. 8.2-7.
8. Make sure everything is disconnected fig. 8.2-8.
9. For separating the carriage from the head you need to be two people –one to hold the carriage while the other
removes the pins fig 8.2-9. After the pins are removed the person which is holding the carriage should carefully place it
on the ground without harming it fig. 8.1.
Figure 71Figure 71