lavina 21-X User manual

LAVINA®21-X User Manual
Tech Support Line: 800-987-8403 | www.superabrasive.com | [email protected]

Superabrasive User Manual Original Language Lavina®21-X 4/2015
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Superabrasive User Manual Original Language Lavina®21-X 4/2015
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WARRANTY AND RETURNS
WARRANTY POLICY FOR LAVINA®X 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®X MACHINES
The Lavina®X 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.
.

Superabrasive User Manual Original Language Lavina®21-X 4/2015
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TABLE OF CONTENTS
WARRANTY AND RETURNS................................... 3
1. GENERAL INFORMATION ...................................... 5
Manufacturer............................................................. 5
General Description .................................................. 5
Machine characteristics............................................. 5
Lavina 21 Main design.............................................. 5
ENVIRONMENTAL CONDITIONS ........................... 5
Electrical Connection ................................................ 5
Vacuum Connection.................................................. 6
Technical Data .......................................................... 6
Vibrations .................................................................. 6
Sonorous Emissions ................................................. 6
Label Data................................................................. 6
Customer Service...................................................... 6
2. SAFETY INSTRUCTIONS........................................ 7
Recommended Use ............................................. 7
Prohibited Use........................................................... 7
Preparation for work.................................................. 7
protection Devices ................................................ 7
Arrest Functions ................................................... 7
Safe Use.................................................................... 7
Residual Risks .......................................................... 7
Before You Begin...................................................... 7
Operating Machine.................................................... 7
After Work is completed............................................ 7
The Work Area.......................................................... 7
PERSONAL PROTECTIVE Equipment (ppe)....... 7
Operator.................................................................... 8
3. HANDLING AND TRANSPORTATION .................... 8
Adjusting the column angle....................................... 8
Adjusting the handle.................................................. 8
Preparing the machine for transportation.................. 9
Storage...................................................................... 9
4. OPERATION............................................................. 9
Preliminary Controls.................................................. 9
ADJUSTING AND MOUNTING TOOLS................... 9
Plug and cable ........................................................ 10
Control Board.......................................................... 10
Starting the Machine ............................................... 10
Operating the Machine............................................ 10
Stopping the Machine ............................................. 11
5. TOOLS AND ACCESSORIES ................................11
Weights....................................................................11
Tool holder key ........................................................11
Foam Plate...............................................................11
Security plate for Quickchange pads.......................11
6. POPULAR TOOLS..................................................12
RECOMMENDED TOOLS.......................................12
7. MAINTENANCE AND INSPECTION ......................13
Cleaning...................................................................13
Check Daily..............................................................13
Check and replace Every 200 Working Hours.........13
Check and replace Every 400 Working Hours.........13
Vacuum....................................................................13
Water Leaks.............................................................13
Mechanical Parts .....................................................13
ELECTRICAL SYSTEM...........................................13
ELECTRICAL SCHEME..........................................14
8. TROUBLESHOOTING............................................15
Index of problems and Solutions .............................15
8.1 Replacing power cord and plugs .......................15
8.2 DISMOUNTING AND MOUNTING TOOL
HOLDER TO CHANGING V-RINGS AND FELT-
RINGS......................................................................15
8.3 DISASSEMBLING AND MOUNTING TOOL
HOLDER TO CHANGE BUFFERS AND ELASTIC
ELEMENT................................................................15
8.4 Tensioning used planetary Belt .........................17
8.5 Mounting and tensioning a new planetary belt..18
8.6 TENSIONING AND REPLACING THE Main
BELT........................................................................18
8.7 REPLACING THE PULLEY UNITS...................19
8.8 Motor Connection ..............................................20
9. SPARE PARTS .......................................................20
1. LAVINA®21-X General Parts ....................................21
2. LAVINA®21-X Top cover parts 1...............................21
4. LAVINA®21-X top cover Parts 2 ...............................22
3. LAVINA®21-x Guard parts .......................................22
5. LAVINA®21-X Planetary drive Parts .........................22
6. LAVINA®21-x bottom cover Parts ...........................23
7. LAVINA®21-x TRANSMISSION BELT PARTS ...............24
8. LAVINA®21-x PULLEY UNIT PARTS...Error! Bookmark
not defined.
9. LAVINA® 21-X Tool Holder Parts ..............................26
/see also fig.8.3.12/ ...................................................26
10. LAVINA®21-X CARRIAGE PARTS .............................26
11. LAVINA®21-X ELECTRICAL PARTS ...........................28

Superabrasive User Manual Original Language Lavina®21-X 4/2015
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1. GENERAL INFORMATION
This owner’s manual is intended for the operator of the Lavina®21-X 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®21-X floor grinding and polishing machine.
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.
GENERAL DESCRIPTION
The Lavina®21-X machine is intended for grinding, polishing, and buffing concrete, marble, granite, limestone, and
terrazzo surfaces with diamond tools.
The Lavina®21-X is a three-disc machine, which can be used dry as well as wet.
For best results, use only tools manufactured or recommended by Superabrasive and its distributors. Additionally, the
machine could be used for grinding wood floor surfaces.
The Lavina®21-X machine is manufactured and fitted for the above-mentioned applications only!
Every other use may possess risks to the persons involved.
MACHINE CHARACTERISTICS
The Lavina®21-X is made of two main component sections:
LAVINA 21 MAIN DESIGN
The two main component sections, the carriage (1) and main head (2).
The handle on the frame is adjustable in height and allows the operator
to work in a correct and safe posture.
The controls are positioned on top of the frame.
The electrical box (fig.1.2) contains the electric switching devices. The
motor feeding cable and the main feeding cable are plugged in the socket
located on the bottom of the frame.
The water tank is on the opposite side of the frame, so that the weight of
the water has no influence on the operation of the machine. The frame
weight, on the other hand, is fully absorbed by the driving wheels.
The motor, mounted on the base plate, is driving the three heads with a
belt system. The planetary head is driven by a second belt.
The self-leveling Guard is designed to have contact with the surface.
Anytime, no matter the height of the tool used.
ENVIRONMENTAL CONDITIONS
The temperature range for operating the LAVINA® X machine outdoors is between
41°F and 86°F or 5°C and 30°C. Never use the LAVINA® X machine during rain or
snow when working outdoors. When working indoors, always operate the machine in
well-ventilated areas.
ELECTRICAL CONNECTION
The voltage (Volt) and power (Ampere) are displayed on a label on the electrical
control box to avoid any incorrect connection. Refer to these before connecting the
power. To avoid electrical shocks, make sure the ground power supply is functioning
properly.
Figure 1.2
Figure 1.1

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VACUUM CONNECTION
A connection for a vacuum dust extractor is located on the carriage. The LAVINA® X machine does not include a
vacuum dust extractor. The customer must purchase the vacuum dust extractor separately. The hose of the
vacuum extractor must be
Ø 50.8 mm and can be glided over the pipe. The vacuum dust extractor must be adapted for floor grinders and
have a minimum air displacement of 320m3/h with a negative vacuum of 21 kPa.
TECHNICAL DATA
VIBRATIONS
The vibrations of the machine are within the limits of directives and harmonized standards from the European Union
when the Lavina® S 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® S 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 21-X
Voltage/Hz
1 ph x 115 V 50- 60Hz
Amperage
Max 16 Amps
Power
1,8 kW
2.45 hp
Tool holder rpm
300 - 500 rpm
Working width
508 mm
19.7”
Tool holder diameter
3 x 178 mm
3 x 7”
Tool diameter
3 x 178 mm
3 x 7”
Weight
99 kg
219 lbs
Grinding pressure
51 kg
113 lbs
Additional weight
max 4x8 kg
4x 18.5 lbs
Application
wet and dry
Vacuum hose port
Ø 50,8 mm
2”
Water tank capacity
20 l
5.2 gal
Water feed
Peripheral
Machine LxWxH
1500x540x1070 mm
59.1”x21.3” x42”
Packing crate LxWxH
1100x750x780 mm
43.3”x29.5”x30.7”

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2. SAFETY INSTRUCTIONS
RECOMMENDED USE
The Lavina®X 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.
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.
The machine should be not connected to electricity when
changing the tools
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 to 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.
PROTECTION DEVICES
The machine is equipped with several protection devices
including the following:
An emergency stop button
A protection skirt and a hood for protecting the tool plates.
These devices protect the operator and/or others 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.
ARREST FUNCTIONS
Functions of arresting of the machine are following:
Button to stop the motor (category 1)
Emergency button (category 1)
SAFE USE
The Lavina®21-X 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 will follow the
instructions in the manual at all times.
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.
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:
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!
OPERATING MACHINE
When operating the Lavina®21-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 and should not go below the machine.
The water hose must move freely and must be damage-free.
Check if the floor, you work on, is not too uneven. If this is
the case, it may damage the machine.
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
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
PERSONAL PROTECTIVE
EQUIPMENT (PPE)
Always wear safety shoes when working with the machine.

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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.
OPERATOR
The Lavina®21-X 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 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.
3. HANDLING AND TRANSPORTATION ADJUSTING THE
COLUMN ANGLE
You can adjust the
angle of the column
for several
purposes for
transporting or
flipping the machine
for tool change,
putting the column
straight makes it
easier to work in
narrow places (Fig. 3.1, Fig. 3.2).
To adjust the column, turn the blocking lever and flip the column (Fig. 3.3, Fig. 3.4).
ADJUSTING THE HANDLE
The Handle on the frame is adjustable in height and allows the operator to work in a correct and safe posture.The
unlocking is by pulling the handle ( fig.3.5)The locking is automatically under action of the spring (Fig.3.6)
shows all possible position of the handle. Choose the upright position to move easy the machine.
Figure 3.3
Figure 3.4
Figure 3.1
Figure 3.2
Figure 3.5
Figure 3.6

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PREPARING THE MACHINE FOR TRANSPORTATION
Unplug the motor cable plug from the control box (Fig. 3.7) and disconnect the water hose from the main head by
pulling it out (Fig. 3.8). Wind the electrical cable on the carriage. Release the pin sets (Fig. 3.9) which attach the head to
the carriage.
Pull out the vacuum hoses, and dismount the head from the carriage (Fig. 3.10) (Fig. 3.11).
The head of the Lavina®21-X has two handles intended for easy moving and transportation (Fig. 3.11, Fig. 3.12). The
LAVINA® X machine is engineered with easy transportation in mind.
STORAGE
Always store and transport the LAVINA® X machine in a dry place. Never transport the LAVINA® X machine
unprotected; it may be damaged if transported unprotected during rain or snow.
4. OPERATION
PRELIMINARY CONTROLS
Inspect the working area as explained in the safety instructions. For wet use, fill in the water tank when the electrical
cable is disconnected. Connect the vacuum extractor and ensure that the vacuum hose is clear and it will follow the
machine easily. Plug in the machine and also make sure that the power cord is free to follow the working direction of the
Lavina®21-X.
ADJUSTING AND MOUNTING TOOLS
The machine should be not connected to electricity when changing the tools.
Figure 3.7
Figure 3.8
Figure 3.9
Figure 3.10
Figure 3.12
Figure 3.11
Figure 4.1
Figure 4.2

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To change tools flip the carriage over to the floor. Ensure first if the handle (Fig. 4.1) or the column (Fig. 4.2) is in the
upright position.
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 “Quickchange” pads with the security plate
(Fig.4.3), and lock with the tool holder key (Fig.4.4).
Diamond tools with Velcro are attached on three 9inch
foam plates. The foam plates are mounted on the key
lock (butterfly). Always use the tool holder key (Fig.5.3).
PLUG AND CABLE
A plug (min. 16A; 110V, IP55) should be attached to the cable, recommended H07BQ-F3x2,5mm² with maximum length 20
meters, according to the standards of the country where the machine will work. The yellow/green cable is ground.
The plug should be attached by a technician.
CONTROL BOARD
1. Working hours meter counts the hours which the machine
has worked
2. Emergency/stop button stops motor or used in Emergency
situations
3. ON button-Power led starts the motor, lights green when
power on
4. Potentiometer Adjusts the RPM of the grinding plates
between 300-500 rpm
STARTING THE MACHINE
Follow the directions in chapter Safety Devices and Safety Instructions. Next, pull the emergency button (2) to ensure that
the machine is in run/start mode. Check the potentiometer (4) and ensure that it is set at the proper working speed. If
working wet, add water to the floor surface. If working dry, omit this step, and instead, switch on the vacuum unit. Finally,
hold the machine firmly and push the start button (3)
OPERATING THE MACHINE
Guide the machine in straight lines across the floor, and with each new line overlap a little bit of the previously completed
surface. 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 Lavina 21 machine in one spot while the tools are still working because they will leave marks on
the floor surface. When working wet, open the water tank periodically to release water onto the floor surface. When working
dry, check the floor surface periodically to ensure that dust is not accumulating on the surface, also check regularly if your
vacuum works properly.
Figure 4.3
Figure 4.4
Figure 4.5