Superabrasive LAVINA 25G-X User manual

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
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LAVINA®25G-X User Manual
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Tech Support Line: 800-987-8403 | www.superabrasive.com | [email protected]

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
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2
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Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
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3
WARRANTY AND RETURNS
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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.
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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.
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Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
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4
WARRANTYANDRETURNS...................................................................3
1.GENERALINFORMATION..................................................................5
MANUFACTURER..................................................................................5
GENERALDESCRIPTION.........................................................................5
MACHINECHARACTERISTICS................................................................5
LAVINA®25G‐XMAINDESIGN..............................................................5
ENVIRONMENTALCONDITIONS............................................................6
VACUUMCONNECTION........................................................................6
TECHNICALDATA..................................................................................6
TECHNICALDATA..................................................................................6
2.SAFETYINSTRUCTIONS.....................................................................6
PREPARATIONFORWORK.....................................................................7
PROTECTIONDEVICES...........................................................................7
ARRESTFUNCTIONS..............................................................................7
SAFEUSE...............................................................................................7
PROPANESAFETY..................................................................................7
FIRESAFETY...........................................................................................7
EMISSIONS............................................................................................7
HAZARDCOMMUNICATION..................................................................7
LOCALAGENCIESANDREGULATIONS....................................................8
BEFOREYOUBEGIN...............................................................................8
OPERATINGMACHINE...........................................................................8
AFTERWORKISCOMPLETED.................................................................8
PERSONALPROTECTIVEEQUIPMENT(PPE)...........................................8
PROPANECYLINDERS............................................................................9
REFUELLINGCYLINDERS........................................................................9
STORAGECYLINDERS...........................................................................10
TRANSPORTINGCYLINDERS...............................................................10
3.HANDLINGANDTRANSPORTATION................................................10
ADJUSTINGTHEHANDLE....................................................................10
LIFTINGTHEMACHINEFROMWORKINGTOTOOLMOUNTING
POSITION............................................................................................11
LIFTING...............................................................................................11
STORAGE.............................................................................................11
4.OPERATION....................................................................................12
PRELIMINARYCONTROLS....................................................................12
WATERFLOWCONTROLUNIT.............................................................12
ADJUSTINGANDMOUNTINGTOOLS...................................................12
ALARM................................................................................................12
CONTROLBOARD................................................................................13
THECONTROLBOARD.........................................................................13
STARTINGTHEMACHINE....................................................................13
OPERATINGTHEMACHINE.................................................................13
STOPPINGTHEMACHINE....................................................................13
5.TOOLSANDACCESSORIES...............................................................14
WEIGHTS.............................................................................................14
TOOLHOLDERKEY..............................................................................14
FOAMPLATE.......................................................................................14
SECURITYPLATEFORQUICKCHANGEPADS.........................................14
6.POPULARTOOLS.............................................................................15
7.MAINTENANCEANDINSPECTION.....................................................16
REMARK..............................................................................................16
MECHANICALPARTS...........................................................................16
CLEANING...........................................................................................16
CHECKHOURLY...................................................................................16
CHECKDAILY.......................................................................................16
CHECKANDREPLACEAFTERTHEFIRST8WORKINGHOURS...............16
CHECKANDREPLACEEVERY50WORKINGHOURS.............................16
CHECKANDREPLACEEVERY200WORKINGHOURS...........................17
CHECKANDREPLACEEVERY400WORKINGHOURS...........................17
VACUUM............................................................................................17
WATERLEAKS.....................................................................................17
MECHANICALPARTS...........................................................................17
ELECTRICALSYSTEM...........................................................................17
8.TROUBLESHOOTING........................................................................18
8.1ENGINE.........................................................................................18
8.2CHECKINGANDCHANGINGOIL.....................................................18
8.3SEPARATINGTHEHEADFROMTHECARRIAGE..............................18
8.4DISMOUNTING/MOUNTINGTHEENGINE.....................................19
8.5REPLACINGTHECLUTCH...............................................................20
8.6DISMOUNTINGTOOLHOLDERTOCHANGINGV‐RINGSANDFELT‐
RINGS.................................................................................................20
8.7DISASSEMBLINGANDMOUNTINGTOOLHOLDERTOCHANGE
BUFFERSANDELASTICELEMENT........................................................21
8.8CORRECTINGDEFLECTIONOFTHEUSEDPLANETARYCHAIN........22
8.9MOUNTINGNEWPLANETARYCHAIN...........................................22
8.10REPLACINGTHEPLANETARYDRIVINGCHAINWHEELAND
PLANETARYTENSIONER......................................................................23
8.11TENSIONINGANDREPLACINGTHEBELTS...................................24
8.12REPLACINGTHEPLANETARYDRIVENCHAINWHEEL...................26
8.13REPLACINGTHEPULLEYUNITS....................................................26
8.14REPLACINGTHEPLANETARYUNIT..............................................27
9.DISPOSAL........................................................................................27
10.MANUFACTURER’SCONTACTS......................................................27
11.SPAREPARTS.................................................................................28
ASSEMBLYANDPARTSSPECIFICATIONS.............................................28
1.LAVINA®25G‐XGENERALPARTS....................................................28
2.LAVINA®25G‐XTOPCOVER1PARTS..............................................28
3.LAVINA®25G‐XENGINEBASEPARTS..............................................29
4.LAVINA®25G‐XTOPCOVER2PARTS..............................................29
5.LAVINA®25G‐XPLANETARYDRIVEPARTS......................................30
5.1.LAVINA®25G‐XPULLEYUNITASSEMBLY...................................31
6.LAVINA®25G‐SWATERTANKPARTS...............................................31
7.LAVINA®25G‐XBOTTOMCOVER1PARTS......................................31
8.LAVINA®25G‐XTOOLHOLDERPARTS............................................32
9.LAVINA®25G‐XBOTTOMCOVER2PARTS......................................32
10.LAVINA®25G‐XCONTROLBOARDPARTS.....................................32
11.LAVINA®25G‐XCARRIAGEPARTS.................................................33
12.LAVINA®25G‐XENGINEPARTS.....................................................34
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Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
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Fi
g
ure 1.2
1. GENERAL INFORMATION
Thisowner’smanualisintendedfortheoperatoroftheLavina®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®Xfloorgrindingandpolishing
machine.
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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.
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GENERALDESCRIPTION
TheLavina®Xmachineisintendedforgrinding,polishingandbuffingconcrete,marble,granite,limestoneandterrazzosurfaceswith
diamondtools.
TheLavina®Xmachine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®Xmachineismanufacturedandfittedfortheabove‐mentionedapplicationsonly!Everyotheruse
maypossessriskstothepersonsinvolved.
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MACHINECHARACTERISTICS
TheLavina®Xmachineismadeoftwomaincomponentsections:

LAVINA®25G‐XMAINDESIGN
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Thetwomaincomponentsarethecarriageandmain
head. 
Thehandleontheframeisadjustableinheightandallowstheoperatortoworkina
correctandsafeposture.
Thehalogenspotlight(Fig.1.2)enablestheoperatortoworkindarker
areas. 
Existinglightingsystemdoesnotreplaceadequate
overhead
lighting. 
Thepropanetankisplacedonatankholderonthebacksideofthe
frame. 
Thecontrolpanel(fig.1.3)ispositionedontopoftheframeandcontains
switching devices,whichensuretheproperfunctioningoftheengine,LPG
supplyturning
on/off oftheelectromagnetic connector/clutch. 
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sprayeror internal 
TheEngineKawasakiFS481Vwithelectricclutchismountedonthebaseplate
and itisdrivingthethreeheadswithabelt system. 
Theplanetarymotionderivesfromthemainengine,drivenbyasimplexroller
chain
, 
Theself‐levelingGuardisdesignedtohavecontactwiththesurface.Anytime,
no mattertheheightofthetool used. 
 “Quickchange”toolholderisdesignedtoholdthetoolswith
“Quickchange”connection.
 The“Foam”toolholderisdesignedtoholdtoolswithVelcroconnection.Itis
mountedoneachofthethreegrindingheads
with akeylock(butterfly).The
Velcromakeschangingoftoolsfastand
easy
Fi
g
ure 1.1
Fi
g
ure 1.3
Fi
g
ure 1.2

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
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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. 
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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.
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TECHNICALDATA
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
VIBRATIONS
ThevibrationsofthemachinearewithinthelimitsofdirectivesandharmonizedstandardsfromtheEuropeanUnionwhen
the 
Lavina®X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® X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 . 

2. SAFETY INSTRUCTIONS
RECOMMENDED  USE 
TheLAVINA®30GX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. 
 Inenvironments
which: 
- Possessrisksof
explosion 
-Possesshighconcentrationofpowdersor
oil substancesinthe
air

TECHNICAL DATA Lavina® 25G-X
engine Kawasaki FS481V
Capacity of engine 603cc 36.8cu.in
Power 13 kW/3600 min 18 hp/3600 min
Tool holder rpm 570-1030 rpm
Engine rpm 2000-3600 rpm
Working width 655 mm 25.8”
Tool holder diameter 3x 225 mm 3x 9”
Weight 267 kg 590 lbs
Grinding pressure 160 kg 350 lbs
Additional weight max 2x29 kg 2x 64 lbs
Application wet and dry
Vacuum hose port Ø 50,8 mm 2”
Water tank capacity 20 l 5.2 gal
Water feed Peripheral and front stream with pump
Capacity Propane tank 9kg 20lbs
Machine LxWxH 1930x690x1110 mm 76”x27”x47”
Packing crate LxWxH 1480x820x1560 mm 58.3”x32.3”x61.5”

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
7

- Possessrisksof
fire 
- Featureinclement
conditions. 
- Possesselectromagnetic
radiation. 
- Innursinghomes,hospitals,day‐care
centers,etc 
- Inareaswhereloosetilesorotherobjects
are 
preventingproperuseofthe
machine. 
- Inroomswithoutproper
ventilation 
- Innursinghomes,hospitals,day‐carecenters,etc
- Inareaswhereloosetilesorotherobjectsarepreventing
properuseofthemachine.
- Inroomswithoutproperventilation

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mountedonthe machine
properly

 Therearenomissingpartsofthe
machine 
 Themachineisinuprightworking
position 
 Theprotectiondevicesareworking
properly. 
PROTECTIONDEVICES
 Themachineisequippedwithseveralprotection devices

includingthe following: 
 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 . 
 TheEnvirogardEmissionsMonitoring
System 
ARRESTFUNCTIONS
 Functionsofarrestingofthemachineare following: 
- Switchtostopthe
engine 
- Buttontostopthegrinding
movement 
- Closethepropane
tank 
SAFEUSE 
TheLAVINA®25GX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 
PROPANESAFETY
Propaneisaflammablegaswhosevaporsareheavierthan
air.Asisthecasewithgasoline,propanecanexplodeiftheproper
cautionsarenotheeded.Propaneisodorizedwithanagent
havingadistinctodorthatisrecognizableatverylow
concentrations.Thishelpsinidentifyingleaks,evenwhentheyare
small.
Awarenessandbasicsafetyprecautionsarerequiredwhen
workingwithpropane.Aslongastheseprecautionsarefollowed,
riskisnegligible.Ignorance,however,couldposeneedlessrisk.
Thetwogreatesthazardswithpropanepoweredfloorcare
machinesare:
- CarbonMonoxidePoisoning:Thisisthemostfrequently
reportedincidentassociatedwithpropanepoweredfloorcare
machinesandiscausedbyexcessiveexhaustemissions.The
symptomsareheadache,dizzinessandnausea.Amajorcause
involvesengineswithpoorpreventive
maintenance practices,
usuallythosewithdirtyairfilters
and machinesoperatedin
confinedareas
without  adequate ventilation.Anothercause
may
be substandard,inexpensivemachineswithno emissions
controltechnology andimproperlyset carburetion. 
- OverfilledFuelCylinders: Nearly all fire
related incidents
reported result from bringing a cylinder
into 
abuildingwithoutfirstcheckingforoverfill.This
action is
dangerous,unwise,and
unnecessary. 
FIRESAFETY 
Beawareofthepotentialdangersoffireor
explosion when
usingpropane,andtakenormalfire‐safety
precautions. 
Fire:ThereisapossibilityoffirefromLPGvaporleaking
or
ventingfromfuelcylindersorcarburetion equipment.
Explosion:LPGvaporconcentratedorconfinedtoa small,
restrictedspacemayexplodeor ignite. 
PropanemayexperienceaBLEVE,aboiling
liquid 
expandingvapor
explosion. 
EMISSIONS 
 Allpropanepoweredfloorcaremachines
produce emissions.
Mostareharmless,butsomearedangerousand
can befatal.
Carbonmonoxide(CO)posesthegreatestrisk,
since 
COcanbelethalwithinaslittleas30minutesexposure
at 
3,000partspermillion(ppm)
concentration. 
 Carbonmonoxideisaninvisible,odorless,colorless
gas
createdwhenfossilfuels(suchasgasoline,wood, coal,
propane,oilandmethane)burn incompletely . 
HAZARDCOMMUNICATION
AMaterialSafetyDataSheetforpropaneshallbe
posted in
allbuildingswherepropanewillbe
used. 
Becausepropaneisodorized,itiseasilydetectedatlevels
of
justafewpartspermillion,whichismuchlessthan the
exposurelimitof1000partsper million. 
Ifyousmellpropanewhileoperatingapropanefloor
care
machine,dothe following: 
Stopthe
engine : 
1. Pullthethrottletothestopposition(ifpresent)
or turn
thekeyswitchtotheoff
position. 
2. Shutofftheservicevalveonthepropane
cylinder. 
3. Movethefloormachinetoawell‐ventilated
area. 
4. Removethecylinderfromthemachineandtake
it
outsidethe building. 
5. Ifthecylinderisleaking,contactaDOT
approved repair
shoptodeterminethecauseoftheleak
and havethe
shop,notyou,repair
it. 
Ifafireoccurswhilethemachineisbeingoperated,do
the
following
: 
1. Stoptheengine:pullthethrottletothestop position 
(ifpresent)orturnthekeyswitchtotheoff
position. 
2. Shutofftheservicevalveonthepropanecylinder
if
possible.Becarefulnottobe burned. 

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
8
3.
Movethemachineoutsideifpossible.Ifnot
possible,
moveit
toawell‐ventilatedareaaway
from flammable materials. 
4. Donotattempttoextinguishtheflamefroma
gas leak.If
youdo,thegaswillbuildupinthearea
and couldre‐ignite.
Starvethefirebyshuttingoff
the supplyof gas. 
5. HAVETHEMACHINEANDCYLINDERINSPECTED
BEFORE
USING THEM AGAIN 
LOCALAGENCIESANDREGULATIONS
NFPA
Operatingapropanepowered
floorcaremachine
requires compliancewithcertainsafety
regulations.TheNational
Fire ProtectionAgency(NFPA)Standard
forStorageand
Handling ofLPGasistheappropriateauthority
forsafepropaneuse.
A copyofthispublicationisavailable
throughtheNPFA
in Quincy,MA (1‐800‐334‐3555). 
Amongitsregulations,NFPA#58requiresthatall
personnel 
employedinthehandlingofpropanegasbetrainedin
its proper
handlingandoperatingprocedures.Italso
requires themtocarry
awrittencertificationfromtheiremployer
or trainingsupervisor
toattesttosuchtraining.Althoughthis
is directedmainlytothose
whofillandtransportliquid
propane gas,OnyxEnvironmental
Solutionsrecommends
that operatorsofpropanepoweredfloor
caremachinesin
public placesbetrainedandcertifiedas well. 
Withregardtooperationofpropanepoweredfloor
care
equipment,eventhoughNFPA588‐4.5says“these machines
shallbepermittedtobeusedinbuildingsfrequentedby the
public,includingthetimeswhensuchbuildingsare occupied by
thepublic,”OnyxEnvironmentalSolutionssuggests
usage when
occupancyofagivenworkareais
minimal. 
CARB/EPA
TheCaliforniaAirResourceBoard(CARB)and
Environmental
ProtectionAgency(EPA)alsosetlimitsfor propane‐powered
enginesusedoutdoors,butCARB/EPAapprovaldoes not signify
thattheengineissafetouse
indoors. 
CGA
TheCanadianGasAssociation(CGA)hassetalimitof
1500
ppmCOinexhaust flow. 
OSHA
Forpropanepoweredmachinesusedindoors,
the Occupational
HealthandSafetyAdministration(OSHA)
has establishedalimit
of50ppmCOfor8‐hourtime
weighted average(TWA)in
ambientairandisconsideringalimitof
800 ppmCOinexhaust
flow. 
DOT
TheDepartmentofTransportation(DOT)has
established
regulationsregardingthesafetyoffuelcylindersincluding the
onesusedonpropanepoweredfloorcare machines. 
LocalAgencies
LocallawenforcementagenciessuchasthelocalFire
Marshall
alsorelyonindependenttestinglabssuchasULand CGA before
givingtheirapprovaloftheuseofsome
equipment. Theselabs
thoroughlytestequipmentandsubmittheir
stamp ofapproval
onlyafterrigoroustesting.Whilenot
being requiredbyalllaw
enforcementagencies,thestamp
of approvalbytheseagencies
furtherassurestheoperator
thathe orsheisworkingwithand
aroundsafe
equipment. 

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propaneconnectionsandcablesmustbeinspected
for
potential damages. 
 Performgeneraldailyinspectionsofthemachine
and 
inspectthemachinebeforeeach
use. 
 Alwaysinspectthesafety
devices: 
 Thetoolprotectormustbe
working 
 Mountthesecuritydiscwhenworkingwith
Quickchange  Pads. 
 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®25G‐X,makecertain
that
thereisnoone,butyouaroundthe machine. 
 Neverleavethemachineunattendedwhile
working. 
 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 
 Storethemachineinasafe
place 
 PlacethePropanebottleoutsideinits
storage 
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. 
 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. 
 AlwayswearCarbonMonoxideIndicatorbadgesas
an
extra precaution. 

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
9
 Theplasticindicatorcontainsacoloredindicator button 
thatdarkensinthepresenceofCarbonMonoxide.
The 
relativedarknessoftheindicatorbuttonindicates
the levelof
COintheambientatmosphere.Most
indicator badgeshavea
usefullifeof30days,dependingon
the concentrationof
contaminants,humidity,
andtemperature. 
TESTING
Thereareagreatnumberofinstrumentsofferedon
the
markettotestfortoxicgases.Onlythosedesignedto read
carbonmonoxideresultingfromcombustionengines is
consideredacceptablefortestingexhaustemissions from
propanepoweredfloor machines. 
Someinstrumentsareusedtoread“ambientair”and
may 
bedamagedifusedtotakereadingsinthemuffleror
tail
pipe.Selectingtheproperinstrumentisanimportant part of
meetingthetesting
requirements.
Generallyspeaking,unitscapableofreadinginppm,
(parts
permillion),atrangesfrom0to1000areadequate for
checkingambientair(airinthebreathingzoneof the
operator).Instrumentscapableoftesting carbon
monoxideintheexhaustshouldbeabletoreadfrom0
to 
atleast2000ppmandshouldbecertifiedby
the
manufacturerforthat purpose. 
Someinstrumentsandsystemsusedforthese
purposes
are:

1)AMBIENTAIR MONITORING 
DRAGERModel190:Manufacturedby
National 
Drager. 
SENSIDYNEgassamplingsystemwith
YB‐11038 
Sensidynedectector
tubes 
DRAGERgassamplingsystemwithYB‐4620
Drager
detective tubes 
GAS‐TECHModel
CO‐95 
ENERACPOCKET60:Manufacturedby
Energy 
Efficiency
System 
2)ENGINEEXHUAST
ANALYZERS HORIBAGAS
ANALYZER 
ENERAC2000COMBUSTION
ANALYZER
ENERACPOCKET 60 
3)DATA
LOGGERS 
INDUSTRIALSCIENTIFICCORP.MODEL
STX‐70 
COMONITOR,
Data‐Logger 
BIOSYSTEMSINC.“TEXILOG”
Data‐Logger 

Allinstrumentsusedfortestingmustbecalibrated
at
intervalsrecommendedbythemanufacturer. The monitor,
modelnumberanddateofcalibrationwill
be recorded
withalltest
results. 
OPERATOR 
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. 
Theoperatorisexpectedtooperatetheirequipment safely 
andresponsibly.Theyareresponsibleforthe proper
handlingandstorageofpropanecylinders, identifying
potentialhazardsassociatedwithhisjoband avoiding
thesehazardsatall times. 
PROPANECYLINDERS 
ThePropanecylindersareconstructedofeither
aluminum or
steel.Werecommendaluminumbecauseitis
lighterand 
guardsagainstrusting.Thecylinderusedon
propane powered
floormachinesisclassifiedasa4E240
cylinder.Its rated
capacityis20lbs.andthisdesignationrefers
to themodelof
thecylinder.Actualpropane
capacity 
achievedduringfillingcanbelessthan,equalto,or
slightly
morethan20lbs.UseonlyUL,CTC/DOTlisted cylinders. 
 Thepropanecylinderusedonthefloormachineisa
motor fuel
cylinderaslistedbytheDepartmentof
Transportation. Unlike
thecommon20‐lbpropaneoutdoorgrill
cylinders (whicharenot
legalforuseonpropanefloor
machines), 
themotorfuelcylinderhasanumberofsafety
systems 
designedintoittoensureyoursafetyatall
times. 
 Therearetwotypesof20lb.motorfuel
cylinders. 
Liquid
draw 
Vapor
draw 
 Theliquiddrawcylinderisusedonlargervehicles
like forklifts.
Thesemachineshavespecial
vaporizing carburetorstoallow
thepropanetochangefroma
liquid toagasbeforebeing
burnedinthecombustion
chamber. 
 Thevapordrawcylinderisusedonsmallmachineslike
the
propanepoweredfloorcaremachines.The vacuum generated
bytheenginedrawsupthePropanegas
vapor throughthefuel
system.Thepropanepoweredfloor
care machinedoesnothave
anevaporatingsystemand
will freezeupifliquidpropaneis
introducedtoit.It
isnecessary thatspecialattentionbepaidto
ensure
that neithertheliquidnorthevapordrawcylinders be
overfilled.

REFUELLINGCYLINDERS  
Theproperfillingofpropanecylindersisasubject
so important
thatitwarrantsspecialattention.
Propane cylindersshouldonly
befilledbyqualifiedpropane
dealers. 
 Mostimportant,propanecylindersshouldbefilled
no 
morethan80%oftheirratedcapacity.Theother
20%, whichis
about4”(10cm)fromthetopofthecylinder,
is calledthevapor
spaceorheadspace.Thisvaporcan
be compressedwithout
causingthepressurereliefvalve
to openandventgastothearea
aroundthecylinder.If
there isnoheadspacetoallowforfuel
expansion,the
pressure reliefvalvewillopen,releasingpropane
gasinto
the atmosphere.Thisisaverydangerousandvolatile
situation asthereisalwaysthepossibilitythatenoughofthe
vented gascouldfinditswaydowntothefloorandcome in

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
10
Figure 3.2.2
contactwithapilotlightfromafurnace,hotwater heater, or
othersourceofignition.
Propanechangesintoagas,is
‐ 44oF(‐42oC).Exposing
unprotectedskintopropanegasorliquidcouldresultin
frostbiteinjury.
Allnewcylindersshouldbeventedandpurgedofairper
manufacturer’sinstructionsbeforeuse.Neverbleedpropane
cylindersindoors.
STORAGECYLINDERS
Whennotinuse,propanecylindersalwaysshould
be stored
outsideinanuprightpositionina
secure, tamperproof,steel
meshstoragecabinet.This
cabinet maybelocatednexttothe
buildingbutwithatleast
five 
feet(1.5m)ofspacebetweenthecabinetandthe
nearest 
buildingopening(doororwindow),alsoawayfrom
heat and
direct
sunlight. 
 Donotinstallthecabinetnearastairwayor
streetelevator as
ventedpropanegaswillseekalower
level sinceitisheavier
thanairandcouldfinditswayinto
the basementofthe
building.Donotstorecylindersfull
or emptyinsideabuilding
orinsideavehicle.Althoughit
is unlikelythatpropanewill
ventfromastoredcylinder,if
it should,thevaporcouldcome
incontactwithan
ignition sourcesuchasasparkfroma
powertoolor
other applianceandcreateaflash fire. 
 Donotsmokeoruseadevicewithanopenflame
when
handlingortransportingpropane cylinders.



TRANSPORTINGCYLINDERS
Whentransportingcylinderstoapropanedealerorto a job,
makesurethecylindersaresecurelyfastened
and standingin
anuprightpositionwiththeservice
valveclosed. 
Acylinderrattlingaroundinthebackofavehicle and 
bangingintootherobjectsconstitutesahazard.
Avoid
droppingorbangingcylindersagainstsharp objects. 
Thepropanecylindersaresturdilyconstructedbuta series
ofhardjoltscouldcause damage. 
Pleasenotethatanycylinderthathasbeenfilledis always 
consideredfull,nomatterhowlittlepropanegas
remains
in
it.Thisisbecauseevenwhenallliquidhas evaporated
intovaporthereisstillsomepropanegasvaporleftin the
cylinder.Becausethisremainingfuelisflammable, an
emptycylindershouldbetreatedwiththesame careful
proceduresasonethatisfilledtothe80%levelwith liquid
propane.Theonlytimethatacylinderisconsidered
empty iswhenitisnew,beforeithasbeenfilledwith
propane. 
Whentransportingapropanepoweredfloormachine,
the
propanecylindermaybestrappedontothemachine as
longasthemachineitselfisfirmlysecuredinthe vehicle. 
 Ofcourse,sparecylindersshouldalwaysbesecuredin
an
upright position.
3.HANDLINGANDTRANSPORTATION
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).Choosetheuprightpositiontomoveeasythemachine
(Fig.3.2). 
Theunlockingisbypullingthehandle(fig.3.1)Thelockingis
automaticallyunderactionofthespring.Fig.3.1.1showsall
possiblepositionofthehandle.
Toavoidturningtheheadduringtransportshouldbe
unscrewedthe(butterfly,wing‐headed)screwandmove
the
leverfromthepositionshowninFig.3.3atoposition Fig.3.3b. 
Whenthemachineoperatesthelevermustbeinposition
showninFig.3.3a,inordertorotatetheheadwhen
change the
tool. 
Figure 3.3aFigure 3.2 Figure 3.3b
Figure 3.1 Figure 3.1.1

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
11


LIFTING THE MACHINE FROM WORKING TO TOOL MOUNTING POSITION
Pushthefronthandledownand
swivelittothefront(Fig.3.4).Pull
the handleupandensurethehead
isastableuprightposition,
for
mounting/dismountingthetool.
Ensurethatthewatertankisempty
before flippingthemachine.Pull
theheadinuprightposition(Fig.
3.5). 






LIFTING
Liftingthemachinebycraneispossiblebyusingtheeyeboltmountedonthe
carriage 
(seefig.3.6).Theeyeboltandmachineconstructionisratedonlyforthe
weight
of themachine.Donotliftanyotherloadsonthemachine.Usealways
hoisting equipmentratedfor300kgor660 lbs. 




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.

Whenduringthestorageofthemachinethetemperaturemayfalldowntoorless32F(or0oC)youshould
emptythewaterfromthesystemusingfollowingsteps:
‐Pulloutthehoseofthetank(Fig.3.7)
‐Usingcompressedairblowoutthewaterfromthesystemforthetwopositionsoftheturn‐cock(Fig.3.8,Fig.3.9).











Figure 3.7 Figure 3.8 Figure 3.9
Figure 3.6
Figure 3.5.1
Figure 3.4 Figure 3.5

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
12
4. OPERATION
PRELIMINARYCONTROLS
Inspecttheworkingareaasexplainedinthesafetyinstructions.Forwetuse,fillinthewatertankorconnectthevacuum
extractorandensurethatthevacuumhoseisclearanditwillfollowthemachineeasily.
Makesurethebonnetairfilterontopoftheengineisclean.Itshouldbecleanedhourly.
Checktheengineoillevel,screwthedipstickintogetreading.Seetoitthetankisfillup(seealso“StoragePropanetanks).
TANKandFUELLINES‐Thetankshasalreadybeencoveredbutdothefuellinesshowanysignofwearandtear,suchascracksor
anycorrosion.Screwthebrassfuellinefittingontothetankservice‐valvehandtightonly.ThisconnectionMUSTbesecure
becausetheservicevalvehasasafetyvalveinsideit,whichwillonlyopenifthebrassfuel‐linefittingisCOMPLETELYseatedinto
theservicevalve.
WATERFLOWCONTROLUNIT
Theoperatorcanchoosethewatersprayerinthe
frontwhenthetapisinthehorizontalposition
(Fig.4.1),thewaterwillsprayunderthecoverofthe
machinewhenthelevelisintheverticalposition
(Fig.4.2).Theflowregulatingvalvelocatedonthe
tank(Fig.4.2.1)isincreasingorreducingthewater
flowtothe
working area–infrontofthemachine
orunderthemainheadcoverofthe
machine. 



ADJUSTINGANDMOUNTINGTOOLS
TheHolderA41inLAVINA®Xcanworkwitheither3or6buffers
whichwillchangeitselasticity.Youcanmakethechangeafter
dismountingtheholderaspertheinstructionin
TROUBLESHOOTING.
InLavina25G‐Xtheholderisinitiallymountedwith6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“Quickchange”padswiththesecurityplate(Fig.4.3),lockwith
the toolholderkey(Fig.5.3).
DiamondtoolswithVelcroareattachedonthreefoamplatesof9inch(Fig.4.4).Thefoamplates
are ountedonthekeylock
(butterfly).Alwaysusethetoolholderkey
(Fig.5.3).

ALARM
EnviroGardemploysasensor(Fig.4.6)intheexhaustpathbetweentheengineandthecatalytic
mufflertodetecttheoxygencontentoftheexhaustbeforeitispassedthroughthecatalyst.The
oxygensensordoesnotreactto
nor doesitmeasuretheCOcontentoftheexhaust.Itrespondsonly
tooxygen
content. 
TheControlModuleissettoignorethereadingsfromtheoxygensensorduringthefirstthree
minutes 
theengineisrunning.Thisperiodallows:Thesensortoreachastableoperating
temperature. 
 ThecatalystinthemufflertoreachthetemperaturenecessarytoreducethelevelsofCO,
nitrogen oxides(NOx)andhydrocarbons(HC)inthe exhaust. 
ThemostcommoneventinwhichtheControlModuleshutsdownanengineiswhentheairfilterbecomesdirtyenoughto
restricttheairintakeflow,whichchangestheair‐fuelratiosuchthattheoxygensensorsignalisoutsidethecontrollimits.Once
theairfilterisproperlycleaned,operationofthemachinecanberesumed.
Figure 4.6
Figure 4.4
Figure 4.3
Figure 4.2 Figure 4.2.1 Figure 4.1

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
13

CONTROLBOARD

THECONTROLBOARD
1Start/StopEngineswitchTurnkeytotheright
forcontactfullrightforstartingtheengine,tostop
keytoleftfullleftiscontact
2Start/StopclutchStartwillelectronicallyactivate
thegrindingplatestospin,bypushingstopitwill
disconnectenginefromgrindingheads
3ThrottlePushforwardtoaccelerate.
4DigitalRPM/workingshoursindicatorWhenthe
motorrunsitindicatestherevolutionsperminute
ofthemotor,seetheconversiontabletoknowthe
rpmofthetools.Whenthemotordoesnotrun,it
indicatestheworkedhours.
Thehourmeterwillblinkbetween48‐52hoursasa
reminderforoilchange.
5FuseFuse30Ampsfortheelectricalsystem.
6WaterpumpswitchLightsorangewhenthewaterpumpisworking.
STARTINGTHEMACHINE
First,followthedirectionsinchapterSafetyDevicesandSafetyInstructions.Checkoillevel.
Open 
(counterclockwise)theservicevalveonthepropanetankaboutoneandahalfturns.Next,seetoittheStart/Stopclutch
button (2)isinstoppositioncheckthethrottle(3)intheIDLEposition.Thiscreatesavacuumnecessarytoopenthelock‐off
valve
inside theregulator.Actuationofthethrottleleverwillkeepthelock‐offvalvefromopeningandtheenginefrom
gettingfuelso
the enginewillnotstart.Propermaintenancewillinsureeasystarting.Engagestarter(1)foraMAXIMUMof
5to6secondsor
until theenginefires.Seriousstarterdamagewillresultifthisisexceededandthewarrantymaynotapply.
Operatetheengineat
half throttleforapproximatelytwominutesforproperwarm‐up.Thenadvancetofullthrottlefor
bestresults.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oftheStart/Stopclutchbutton (2). 
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®X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. 

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 clutchasthetoolscoulddamagethesurface.TostoppushStopclutchbutton(2),thenclose(clockwise)the
servicevalveon
the propanetank.ALWAYSallowtheenginetorununtilitstopsfromlackoffuel.•ONLYINAN
EMERGENCYshouldthe
"stop" positiononStart/StopEngineswitch(1)Disconnectthefuellinefromthetank.REMEMBER,
whenyouarefinishedwith
the machine,storethepropanetankoutsidethebuilding,inaSECUREplaceawayfromheator
directsunlight.Usethe
Emergency button(9)onlyinemergencyoruseittoswitchthepowertotallyoff.Remembernotto
holdthemachineinonespot
before turningoffuntilthegrindingplatesstop moving. 

pmenginerpmtools
2000570
2100600
2200630
2300660
2400690
2500715
2600745
2700775
2800800
2900830
3000860
3100890
3200915
3300945
3400975
35001005
36001030
Figure 4.5

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
14
5.TOOLSANDACCESSORIES
WEIGHTS
Superabrasiveoffersadditionalweightsforincreasingtheproductivityof
the
machine(Fig.5.1).Eachadditionalweightweighsabout64lbsor29kg. Each
individualapplication,typeandconditionofsurface,powercapacityof the outlet,
etc.willdeterminethenumberofweightsyoucanusewithout
tripping abreaker.
Theweightstacksontothreepostsaroundtheouterbowl
(Fig.5.2). 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.
The weightcanbeorderedwith
itemnumberA
08.00.00.00. 














TOOLHOLDERKEY
Thetoolholderkey(Fig.5.3)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   
(Fig.5.4).Thefoamplateismountedonthe“QuickChangeSystem”.
ItemnumberisLV‐9‐FP‐S










SECURITYPLATEFORQUICKCHANGEPADS
Plate(Fig.5.5)usedtoensurethe“Quickchange”pads.
ItemnumberisA38.00.01






Figure 5.3
Figure 5.1
Figure 5.4
Figure 5.2
Figure 5.5

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
15

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

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
16

7.MAINTENANCEANDINSPECTION
REMARK
Tamperingw/EmissionControlSystemProhibited
FederallawandCaliforniaStatelawprohibitsthefollowingactsorthecausingthereof:(1)theremovalorrendering
inoperative byanypersonotherthanfarpurposesofmaintenance,repair,orreplacement,ofanydeviceorelementatdesign
incorporated intoanynewengineforthepurposeofemissioncontrolpriortoitssaleordeliverytotheultimatepurchaseror
whileitisin
use, or(2)theuseoftheengineaftersuchdeviceorelementofdesignhasbeenremovedorrendered
inoperativebyany
person. Amongthoseactspresumedtoconstitutetampering,involvetheparts/systemslisted below: 
Carburetorandinternal parts 
Spark plugs 
Magnetoorelectronicignition system 
Fuelfilter element 
Aircleaner elements 
Crankcase
Cylinderheads
Breatherchamberandinternalparts
Intakepipeandtube
MECHANICALPARTS
Partssuchasthebelt,sealrings,caprings,spiders,buffers,guardassembly,tiresaresubjecttowearandshouldbereplaced
asneeded. 

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. 

CHECKHOURLY
BONNETFILTER‐Makesurethebonnetairfilteratoptheengineisclean.Itshouldbechangedhourlyandthoroughly
cleaned beforereuse.Thesamefortherecoildustfilter.Ifneglectedtheenginewilloverheatandcarbonmonoxide
emissionswill
elevate.
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.
CHECKANDREPLACEAFTERTHEFIRST8WORKINGHOURS
Replacetheoilintheengineafterthefirst8hourswork,accordingtotheinstructions
of theengine manufacturer. 
Alwaysuse30HDor10W30engineoilwithallofthefollowingratings:SF,SG,and
CC 
CHECKANDREPLACEEVERY50WORKINGHOURS
Changeengineoil,whilechangingcheckforleakageofengineoilatthevariousseals.Thehourmeterwillblinkbetween
48‐52 hoursasareminder./"EngineOilCapacity"is1.5L(1.6US.qt)whenoilfilterisnotremoved1.7L(1.8US.qt)whenoil
filter
isremoved/. 
Recommended Oil Change
Intervals 
Donotexceedthe50‐houroilchangeinterval.Oilchangesmorefrequentthan25hourswillgiveevenlongerenginelife.In
any case,alwaysuse30HDor10W30engineoilwithallofthefollowingratings:SF,SG,andCC.makesuretheoillevelis
maintained atthe"FULL" level. 
Figure 7.1

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
17
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,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. 
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. 
VACUUM
Asstatedpreviously,frequentlycheckhosesandother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andbuffersandguardassemblyaresubjecttowearandshould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.
ElectricalschemeswithKawasakiEngine
Figure 7.2
Figure 7.3

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
18
8.TROUBLESHOOTING
8.1ENGINE
Whentroublesoccur,be sure to check the simple causeswhichatfirst,mayseemtooobvioustobeconsidered.Forexample,
a startingproblemcouldbecausedbyfuelstarvationduetoanemptypropanecylinderoranunopenedservicevalve.Ifyou
do
not checkforthis,starterburnoutcould result. 
SomeTroublesand
solutions:
Surging idle 
Tosmoothouttheengines'idlecharacteristics,adjustmentisprovidedbyanidlescrewonthelowerleftsideofthecarburetor
as viewedfromtheoperator'sposition.Thescrewisbrightsteeland1/4"indiameterwithaPhillipsheadonit.Rotatingthe
screw clockwisewillincreasetheidlespeedandthisshouldcurethe"surgingidle".Ifitdoesnot,callourcustomer service. 
Enginestartsandidles,butwillquitasthethrottleis
advanced 
Itispossiblethatthepropanetank'sservicevalveisfaulty.Tocheckforthis,closethevalvecompletelyandthenreopen
very
slowlywhileyoulistenfora"click"whenthegasbeginstotravelthroughthevalve.Ifyouhearthisveryslightnoise,the
valve
is onlypartiallyopening.Thisallowsenoughgasthroughtostartandidletheengine,butnotenoughforfullthrottle
operation.
As thethrottleisincreased,allowingmoreairtoentertheintake,theenginewillquitfromfuelstarvation.Call
yourdealeror
the factoryforinstructionsonwheretohavetheservicevalvereplaced.Meanwhile,togetby,youcan
continuetoopenthe
service valveuntilyoudonotheara“click"andthentheenginewillrunnormally.Ifitdoesnot,call
yourcustomer
service. 
Starterbarelyturnstheengineoverorthesolenoidjust
clicks 
Thebatteryislikelylowincharge.Thiscanberemediedbyrechargingthebatteryusinga12Voltbatterychargerat
4.12 
amperes.Thebatteryislocatedontheleftsideofthepropanetankholderunderthebatterycover.Thepositivepostistheone
withtheREDcable
attached toit.Followtheinstructionsthatcamewiththebatterycharger.REMINDER:thiswillcontinueto
happenunlessyourengineis
run forsufficienttimebetweenstartstorechargethe battery 

8.2CHECKINGANDCHANGINGOIL



Checktheengineoillevel,screwthedipstickintogetreading.Whilechangingengineoil,checkforleakageofengineoilat
the
variousseals.Thehourmeterwillblinkbetween48‐52hoursasa reminder. 
Recommended Oil Change
Intervals 
Donotexceedthe50‐houroilchangeinterval.Oilchangesmorefrequentthan25hourswillgiveevenlongerenginelife.In
any
case,alwaysuse30HDor10W30engineoilwithallofthefollowingratings:SF,SG,andCC.makesuretheoillevelis
maintained atthe"FULL" level. 

8.3SEPARATINGTHEHEADFROMTHECARRIAGE
Pleasenotethatthepropanecylinderhastoberemovedandstoredoutsidebeforeanymaintenanceorreparationisdone.
  
Figure 8.2.1 Figure 8.2.2
Figure 8.3.1 Figure 8.3.3Figure 8.3.2

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
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
Pulltheconnectorofthebattery(Fig.8.3.1),pulloutthePropanehose(Fig.8.3.2),theconnectorsofthelamp(Fig.
8.3.3),
dismountthecontrolpanel(Fig.8.3.4),andtakeoffallwaterandvacuumhoses(Fig.8.3.5).Removethetank(Fig.8.3.6).Now
it
is possibletoseparatetheheadbyremovingthepins;twopeopleareneededtodothisoperation:onepersonholdsthe
carriage
the otherpullsthepins(Fig. 8.3.7). 

   


8.4DISMOUNTING/MOUNTINGTHEENGINE
 


Separateheadfromcarriage(seepreviouschapter).Removefront(Fig.8.4.1)andbackbeltprotection(Fig.8.4.2).Loosethemotor
baseplate(Fig.8.4.3),releasethetensiondevice(Fig.8.4.4),andtakeoutthebelt(Fig.8.4.5).Takeofftheengine(Fig.8.4.6).

  


Reassembleinthesamemanner.(Fig.8.4.7),Tensionthebeltwithbolt(4)on
(fig.8.4.7)or(fig.8.4.4)ThebelttensioncanbetestedwithaFrequency
tensionTesterOptibelt3TT‐(190‐200Hz)ormanualbypushingwithaforceof
6kgor13lbsinpointA,thedeflectionofthebeltmustbe3,1mmor+1/8
Inch


ATTENTION:
NEVER“OVER”TENSIONTHEBELT,THEBELTWILLBEDESTROYEDANDIT
WILLNEVERRECOVERITSORIGINALTENSION
Figure 8.3.4 Figure 8.3.5 Figure 8.3.6 Figure 8.3.7
Figure 8.4.2 Figure 8.4.3
Figure 8.4.4 Figure 8.4.5 Figure 8.4.6
Figure 8.4.7
Figure 8.4.1

Superabrasive UserManual OriginalLanguageLavina®25G‐X 2/2015
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8.5REPLACINGTHECLUTCH
  


Incasetheelectricclutchhastobereplaced,removetheengine(seeprevious
chapter) andlayitonitssidewiththeoildrainageup(Fig.8.5.1)andloosethefront
nuttodismounttheclutch(Fig.8.5.2andFig.8.5.3).
Reassembleinthesamemanner.Donotforgettomountbackthewasheronthe
shaft

(Fig.8.5.4).Thetorqueonthefrontnut(Fig.8.5.3)tomountthepulleyandclutch
should
be70Nmor52ft lbs (Fig.8.5.2andFig.8.5.3) . 




8.6DISMOUNTING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.8.6.1)andremove
theholder(Fig.8.6.2)
Whenthetoolholderisdismounted,youcanchangethesealers(V‐RingandFelt‐Ring).
BylooseningfourHexcapflangebolts(Fig.8.6.3)theadaptorcomesloose.Unscrewthesixscrewsofthecap(Fig.8.6.4)holdingthe
felt‐ring.TakeouttheFelt‐Ring,adaptorandV‐Ring.
MounttheV‐RingwiththesmallestlipoftheVtoinside(Fig.8.6.5)justpushtheV‐Ringsothetopisonthesamelevelasthe
pulleytop(Fig.8.6.6).ThentaketheadaptorandpushtheV‐Ringdownwiththeadaptor(Fig.8.6.7).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andtheFelt‐Ringon
top(Fig.8.6.7).Closethesealerswiththecap(Fig.8.6.8)andscrewthebolts.Alwaysusetheoriginalbolts.
Figure 8.5.1 Figure 8.5.2 Figure 8.5.3
Figure 8.6.1
82
1
Figure 8.6.2 Figure 8.6.3 Figure 8.6.4
Figure 8.6.5 Figure 8.6.6 Figure 8.6.7 Figure 8.6.8
Figure 8.5.4