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

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STOPPING THE MACHINE
The stopping of the machine must be done gradually until the motor stops. Do not stop moving the machine before arresting
the motor as the tools could damage the surface. To stop push the emergency/stop button (3).
Remember not to hold the machine in one spot before turning off the motor.
5. TOOLS AND ACCESSORIES
WEIGHTS
Superabrasive offers four additional weights of 18.5 lbs or 8 kg (Fig.5.1) item number L21-50.00.00.The weights stacks on
the 3 posts around the outer bowl (Fig.5.2) or on top of each other (Fig.5.3).
The additional weights depend on the tools; it is not always possible to add weights. Some tools work too aggressively and
the machine can stop.
TOOL HOLDER KEY
The tool holder key (Fig. 5.4) is used for adjusting, mounting and dismounting of
the foam plates. Always use the key for mounting. Item number is A03.00.00.00
FOAM PLATE
Diamond tools with Velcro are mounted on the foam plate 7“(Fig.5.5). The foam plate is
mounted on the “QuickChange” System.
Item number is LV-7-FP-S
SECURITY PLATE FOR QUICKCHANGE PADS
Plate used to ensure the “Quickchange” pads. Item number is A38.00.04 (Fig.5.6)
Figure 5.1
Figure 5.6
Figure 5.4
Figure 5.5

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6. POPULAR TOOLS
RECOMMENDED TOOLS
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.
They are 3-inch, with included Velcro back attachment.
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. Available in 3
and 4 in sizes. They are with included Velcro attachment.
V‐HARR®Premium Polishing Pads are designed for mechanically polishing and restoring concrete; also ideal
for terrazzo and hard stone floors. V‐HARR® pads are offered in a wide variety of diameters and grit sizes to
accommodate many applications. Dry use is strongly recommended.
Shine Pro®are high quality diamond‐impregnated pads for floor maintenance. Available in a variety of sizes, and
are great for daily use. When used wet, they require only water (no wax or chemicals needed) and are a very
environmentally friendly solution for maintaining floors.
Use only Superabrasive’s recommended tools. For more tooling options, visit www.superabrasive.com

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7. MAINTENANCE AND INSPECTION
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, power cord and
plugs, vacuum hoses and water tank.
CHECK DAILY
After operating the Lavina® X 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 also.
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, power cord plugs, vacuum hoses and water tank. 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.
Separate the carriage from the main head. Unscrew the four bolts(Fig.7.2)
and take the upper cover (Fig.7.3). Check the planetary driving belt, by
moving the main head, the belt should not slip on the planetary /central/
pulley.
Dismount the tool holders (See TROUBLESHOOTING) and replace all
parts (elastic element, buffers, sealer caps, “O” rings) that have the
slightest damage.
CHECK AND REPLACE EVERY 400 WORKING HOURS
Besides the checks of 200 working hours, replace sealer and V-rings like
described in chapter “TROUBLESHOOTING DISMOUNTING TOOL
HOLDERS TO CHANGING V-RINGS AND FELT-RINGS.
VACUUM
As stated previously, frequently check hoses and other parts for clogging.
WATER LEAKS
Replace any leaking parts immediately as the water could damage your machine
MECHANICAL PARTS
Parts such as the belts, seal rings, cap rings, spiders, buffers and guard assembly are subject to wear and must be
replaced as needed.
ELECTRICAL SYSTEM
Dust should not enter the control box as it will destroy the contacts. Remove (blow out) any dust present.
Figure 7.1
Figure 7.2
Figure 7.3

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ELECTRICAL SCHEME
A plug should be attached to the cable (min. 16A; 110V, IP55) according to the standards of the country where
the machine will work.
The plug should be attached by a technician. The yellow-green cable is ground.
We recommend the cable should be H07BQ-F3x2,5mm² with maximum length 20 meters. On the cable should be
attached a socket (min. 16A; 110V IP55 ) according to the standards of the country where the machine will work.
When replacing the power cord or plugs always use cords and plugs with specifications as the original ones.
Never use lower quality or different type cord and plugs.

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8. TROUBLESHOOTING
INDEX OF PROBLEMS AND SOLUTIONS
8.1 REPLACING POWER CORD AND PLUGS
When replacing the plugs always use plugs with specifications as the original ones.
Never use lower quality or different type.
8.2 DISMOUNTING AND MOUNTING TOOL HOLDER TO CHANGING V-RINGS AND FELT-RINGS
To check or replace the buffers and the elastic elements , the tool holders
have to be dismounted.
You will need deep metric socket 13mm with outside diameter not more
than 3/4in to unscrew the four bolts (Fig.8.2.1) and remove the holder
(Fig.8.2.2)
When the tool holder is dismounted, you can change the sealers (V-Ring).
Take out the adaptor and V-Ring (Fig.8.2.3) (Fig.8.2.4).
Mount the V-Ring with the smallest lip of the V to inside (Fig.8.2.5) just push
the V-Ring so the top is on the same level as the pulley top (Fig.8.2.6).
Then take the adaptor and push the V-Ring down with the adaptor
(Fig.8.2.7). The lowest lip of the V-Ring should only barely touch its gliding
surface; also never push the V-Ring down with fingers. Mount the adaptor
on top (Fig.8.2.7).
8.3 DISASSEMBLING AND MOUNTING TOOL HOLDER TO CHANGE BUFFERS AND ELASTIC ELEMENT
When the TOOL HOLDER is disassembled you can change defective parts –elastic element, buffers, etc.
Lift the locking pin (Fig.8.3.1) to dismount the retaining washer (Fig.8.3.2). Take out the screws on the buffers and the
nuts of the elastic element (Fig.8.3.3;Fig.8.3.4). Remove the elastic element from the QC plate (Fig.8.3.5). While the
holder is dismounted (Fig.8.3.6;Fig.8.3.7) clean the parts and replace the defective with new ones. Assemble the holder
with new buffers with new screws and new elastic element. Put the retaining washer (Fig.8.3.8) and push the locking
pin (Fig.8.3.9). This will prevent the fall of the washer when mounting the holder on the machine.
Figure 8.2.1
19
Figure 8.2.2
Figure 8.2.3
Figure 8.2.5
Figure 8.2.4
19
Figure 8.2.7
Figure 8.2.6

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Mount the holder on the machine using the same socket as
mentioned in 8.2 (Fig.8.3.10;Fig.8.3.11). The retaining washer fits
into the central hole of adaptor and the four bolts into the thread
holes. The holder is centered on the outside diameter of the
adaptor. Ensure the connection of the holder on the forehead of
the adaptor and then tight evenly the four bolts. Tightening force
of the bolts has to be 22...25N.m(16...18 ft/lbs). Mounting the
holder without retaining washer (Fig.8.3.2) is INADMISSIBLE
because the security system preventing the separation of part of
the holder in case of broken buffers and elastic element will not
function!
You can change the butterfly of the holder without
dismounting the holder of the machine.
Fig.8.3.12 is 3-d section view of the holder, showing
its parts. The numbering is the same as in Spare
parts.
Figure 9.3.1
Figure 9.3.2
Figure 9.3.3
Figure 9.3.6
Figure 9.3.7
Figure 9.3.4
Figure 9.3.5
Figure 9.3.8
Figure 9.3.9
Figure 8.3.12
Figure 8.3.10
Figure 8.3.11

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8.4 TENSIONING USED PLANETARY BELT
If the belt slips or is broken separate the carriage from main head, pull out motor plug (Fig. 8.4.1), water-(Fig. 8.4.2)
(Fig. 8.4.3) and vacuum tubes. Unscrew the four bolts (Fig.8.4.4) and take the upper cover (Fig.8.4.5).
In case of slipping of the planetary belt that interrupts the operation of the machine you can tighten the belt. Loose
slightly the two bolts and the nut of the tensioning device (Fig. 8.4.6)(Fig. 8.4.7)(Fig. 8.4.8). Unscrew the stop nut (Fig.
8.4.9). Correct the belt tension using the nut. Fig.8.4.10 shows how to control the belt tension with Optikrik I Device
(Measuring range: 200-600 N) (Fig. 8.4.11). The tensioning force is about 250N.
Figure 8.4.1
Figure 8.4.2
Figure 8.4.3
Figure 8.4.4
Figure 8.4.5
Figure 8.4.10
Figure 8.4.11
Figure 8.4.9
Figure 8.4.6
Figure 8.4.7
Figure 8.4.8

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8.5 MOUNTING AND TENSIONING A NEW PLANETARY BELT
Unscrew the two bolts and the nut of the tensioning device(Fig.
8.4.6)(Fig. 8.4.7)(Fig. 8.4.8). Unscrew the stop nut and turn the
tensioner to loosen the belt (Fig. 8.4.9). Take off the old belt. Put the
new belt (Fig. 8.5.1) and then screw the bolts and nut of the tensioning
device. Do not forget to lock the tensioning device (Fig.8.4.10).
ATTENTION: NEVER “OVER” TENSION THE BELT, THE BELT
WILL BE DAMAGED AND IT WILL NEVER RECOVER ITS
ORIGINAL TENSION
8.6 TENSIONING AND REPLACING THE MAIN BELT
The transmission of the machine has one timing belt of
maintenance free type. To change the main belt you
have to remove all holders and dismount their adaptors.
Dismount the sealing. Carefully check the friction
surface (flanges of the lower cover and the outside
diameter of the adaptors). Decide if they are in good
condition (wear out, smoothness of surface) and
whether they can work until next inspection. Unscrew
the fixing bolts of the lower cover( Fig. 8.6.1) and
remove the bottom cover( Fig. 8.6.2). The change of all
seals together with the belt is recommended.
Fig.8.6.3 shows the scheme of belt location.
To dismount the main belt pos.1 unscrew the bolt on
pos.5, unscrew the three nuts on pos.2 and the nut on
pos.3 enough to be able to turn the tensioner pos.6
around the central axle. Clean the washers and space
around, and check if all bearings of pulley units or
tensioners are in good condition (check for too much
clearance or rolling noise). Rotating the tensioner will
allow the central distance to be reduced in such a way
that the timing belt may be fitted without force.
Installation with the use of force is NOT permissible at
any time as this can damage the high quality, low
stretch tension cord and other components. This
damage is often not visible. Put the belts in pos.1 as per
the scheme, and pay attention for their correct position
in every pulley. Screw up until it stops and loosen on the half moons the nuts on (Fig. 8.6.3-2) (Fig. 8.6.4), allowing the
rotation of the tensioners at minimum inclination.
Using nut on (Fig. 8.6.3-3) (Fig. 8.6.5) tighten the belt, verifying again the correct position of the belt, and the correct
gearing in every pulley.
Rotate the gear while tensioning to allow regular tension distribution on the belt. Control the tension using Frequency
tension Tester (Optibelt 3 TT) (Fig. 8.6.6). Tension in span “А” of the belt should be 240-250Hz.
Figure 8.5.1
Figure 8.6.2
Figure 8.6.1
Figure 8.6.4
Figure 8.6.3

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Tighten the three nuts (Fig. 8.6.3-2) (Fig. 8.6.4), screw the bolt (Fig. 8.6.3-5) (Fig. 8.6.7) and tighten the stopping nut
(Fig. 8.6.3-4) (Fig. 8.6.8). Check again the tension of the belt (Fig. 8.6.6).
It is possible for tensioning while changing the belt to use pre-installed support (Fig.8.6.3-7) (Fig.8.6.9) (only when its
factory position is not changed), to limit the turn of the tensioner when the required belt tension is done.
ATTENTION:NEVER “OVER” TENSION THE BELT, THE BELT WILL BE DESTROYED AND IT WILL NEVER
RECOVER ITS ORIGINAL TENSION
8.7 REPLACING THE PULLEY UNITS
Dismount guard, top cover, bottom cover and belts as previous described. Dismount the planetary tensioner.
(Fig.8.7.1-1).
Unscrew the screw on pos.2(Fig.8.7.1-2) and dismount the front
washer (Fig.8.7.1-3), the drive pulley of the planetary belt
(Fig.8.7.1-4), cotter (Fig.8.7.1-5) and security cap (Fig.8.7.1-6).
Unscrew the five screws on pos.7(Fig.8.7.1-7) and dismount the
driving pulley(Fig.8.7.1-8).
Unscrew the five bolts pos.10(Fig.8.7.1-10)(Fig.8.7.2) and
dismount the other two units.
While mounting the pulley unit (Fig.8.7.1-8) apply lithium grease
on the shaft and mount back the cotter (Fig.8.7.1-5), security cap
(Fig.8.7.1-6), front washer(Fig.8.7.1-3) and guiding washer of the
planetary belt(Fig.8.7.1-4).
Tight the screw (Fig.8.7.1-2) by using always the “blue” thread
locking adhesive. Tightening force of the bolts has to be
9...11N.m(6.6...8 ft/lbs).
Figure 8.6.5
Figure 8.6.6
Figure 8.6.7
Figure 8.6.9
Figure 8.6.8
Figure 8.7.1

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8.8 MOTOR CONNECTION
The cable from the outlet should not be longer than 20 m or 65 feet, because the use of longer cable or cable with lower
section than the indicated above, could cause problems during the working process.
In case of changing the motor, please check the cable connection to your motor.
Lavina®21X
The motor is connected in “Delta” (Triangle) 230 Volt,
reminder for the wire connection of the motor.
Figure 8.35
Figure 9.8.1
Figure 8.7.2
Figure 8.7.3