Hofmann Megaspin 800 Instruction Manual

0055 - 1
ELECTRONIC MICROPROCESSOR WHEEL BALANCER
WITH THREE-DIMENSIONAL GRAPHIC VISUAL DISPLAY
UNIT FOR CAR, COMMERCIAL VEHICLE AND
MOTORCYCLE WHEELS
0055 - 1998.12
Operating instruction manual
Protectioncover
Weight and accessories table
Automatic
widthreading
gauge
Wheel balancer
chuck
Automaticdistance + diameter
gauge
Parking and emergency
brakepedal
Pneumatic chuck lock
pedal
( Series A ) ( Series A )
Visual
displayunit
Control
panel
Flange
stakes
HofmannIndustrialGmbH
A - 5302 Henndorf
Hauptstraße 59
Tel [phone] \ Fax -22

2- 0055
-WHEELBALANCEREXPLODEDDRAWINGS
-ECDECLARATIONOFCONFORMITY
CONTENTS page
1-GENERALDETAILS ..................................................................................................................................................................... 5
1.1-GENERALSAFETYPRECAUTIONS ........................................................................................................................... 5
1.1.1-STANDARDSAFETYDEVICES ............................................................................................................................... 5
1.2 - FIELD OF USE............................................................................................................................................................. 5
1.3-OVERALLDIMENSIONS ............................................................................................................................................. 5
1.4-TECHNICALDETAILS ................................................................................................................................................. 6
2-HANDLING,LIFTING ................................................................................................................................................................. 6
3 - SETTING UP................................................................................................................................................................................ 7
3.1-SECURING.................................................................................................................................................................. 7
3.2-POWERCONNECTIONS ............................................................................................................................................. 7
3.3-PNEUMATICCONNECTIONS(ModelP)...................................................................................................................... 7
3.4-FURTHERSAFETYDEVICES(MODELP).................................................................................................................. 7
3.5-FITTINGTHEFLANGE ................................................................................................................................................. 7
3.6-FITTINGANDADJUSTINGTHEPROTECTIONCOVER(Table4-Explodeddrawings)............................................... 7
4-CONTROLSANDCOMPONENTS............................................................................................................................................... 8
4.1 - BRAKE PEDAL ............................................................................................................................................................ 8
4.2-PNEUMATICLOCKINGPEDAL(ModelP)................................................................................................................... 8
4.3-DISTANCEANDDIAMETERMEASUREMENTGAUGE ............................................................................................. 8
4.4-WIDTHMEASUREMENTGAUGE ............................................................................................................................... 8
4.5-AUTOMATICWHEELPOSITIONING ........................................................................................................................... 8
4.6-CLOCKMANAGEMENT............................................................................................................................................... 8
4.7 - KEYBOARD ................................................................................................................................................................. 9
5-WHEELBALANCERINDICATIONSANDOPERATION ............................................................................................................ 10
5.1-INITIALFRAME .......................................................................................................................................................... 10
5.1.2 - SCREEN SAVER FRAME ...................................................................................................................................... 10
5.2-MENUACCESSDIAGRAM ....................................................................................................................................... 11
5.3-SETTINGTHEWHEELDIMENSIONS ....................................................................................................................... 12
5.3.1AUTOMATICSETTING .............................................................................................................................................. 12
5.3.2-RETRIEVINGSTOREDMEASUREMENTS ............................................................................................................ 14
5.3.3-MANUALSETTING ................................................................................................................................................. 15
5.4-USERMANAGEMENT............................................................................................................................................... 16
5.4.1 -USER STORAGE .................................................................................................................................................... 16
5.4.2-USERRETRIEVAL.................................................................................................................................................. 16
5.5-5.4MEASUREMENTRESULT................................................................................................................................... 17
5.5.1-INDICATIONOFEXACTPOSITIONOFCORRECTIONWEIGHTS ......................................................................... 18
5.5.2-"SPLIT"MANAGEMENT ......................................................................................................................................... 19
5.5.3-IMBALANCEOPTIMISATION .................................................................................................................................. 20
5.5.4-ALUANDSTATIC MODE ........................................................................................................................................ 20
5.5.5-CORRECTINGSTATICIMBALANCE ...................................................................................................................... 21
5.6-STATISTICS ............................................................................................................................................................... 21
5.7-RUN-OUTMEASUREMENT(OPTIONAL) .................................................................................................................. 22
6 - SETUP ....................................................................................................................................................................................... 23
6.1-LANGUAGE ............................................................................................................................................................... 23
6.2-IMBALANCEMEASUREMENTUNIT ......................................................................................................................... 23
6.3-IMBALANCEDISPLAYTHRESHOLD ........................................................................................................................ 23
6.4-IMBALANCEDISPLAY STEP ................................................................................................................................... 23
6.5-SPINWITHCOVERCLOSED .................................................................................................................................... 23
6.6-SCREEN-SAVERTIME.............................................................................................................................................. 23
6.7-VISUALRUN-OUTCHECK ........................................................................................................................................ 23
6.8-ACOUSTICALARM .................................................................................................................................................... 23
6.9-SETTINGTHECLOCK ............................................................................................................................................... 23
FOR EXPERT ENGINEERS ONLY
7-CALIBRATIONANDSPECIALFUNCTIONS ............................................................................................................................ 24
7.1-WIDTHMEASUREMENTENGAGEMENT ................................................................................................................. 24
7.2-SETTINGCUSTOMERANDUSERNAME ................................................................................................................ 24
7.3-RUN-OUTMEASUREMENTENGAGEMENT............................................................................................................. 24
7.4-CALIBRATIONS.......................................................................................................................................................... 24
7.4.1-GAUGECALIBRATION .......................................................................................................................................... 24
7.4.2-FLANGERUN-OUTCORRECTION ......................................................................................................................... 25
7.4.3-WHEELBALANCERCALIBRATION ....................................................................................................................... 25
7.4.4-SELF-DIAGNOSIS................................................................................................................................................... 25
7.4.4.1-ENCODERCONTROL .......................................................................................................................................... 25
8-ERRORS .................................................................................................................................................................................... 26
9-ROUTINEMAINTENANCE ......................................................................................................................................................... 27
9.1-SCHEDULEDMAINTENANCE ................................................................................................................................... 27
9.2-REPLACINGTHEPROTECTIONFUSES .................................................................................................................. 27

0055 - 3

4- 0055
Note: Due to international agreements this machine may not be sold in the following countries:
France, Germany, Italy, USA

0055 - 5
1 - GENERAL DETAILS
1.1 - GENERAL SAFETY PRECAUTIONS
- The wheel balancer must only be used by authorised and adequately trained personnel.
- The wheel balancer must not be used for purposes other than those indicated in the manual
-Thewheelbalancermust notbemodifiedinanyway,exceptingmodificationsexplicitlyapprovedby
the manufacturer
- The safety devices must not be removed. Any job carried out on the machine must only be done by
skilledand authorisedpersonnel.
- Avoid cleaning with strong jets of compressed air.
- To clean plastic panels or surfaces use alcohol (AVOID LIQUIDS CONTAINING SOLVENTS)
- Before starting the balancing cycle, make sure the wheel is correctly secured to the flange.
-The machine operator must not wearlooseclothing: Unauthorised persons must not comenearthe
wheel balancer during the operating cycle.
- Avoid placing objects in the machine bed that could jeopardise correct wheel balancer operation.
1.1.1 - STANDARD SAFETY DEVICES
- STOP button for stopping the wheel in emergencies
-Highly-resistant,shockproofplasticprotectioncover;speciallydesignedtopreventcounterweights
from flying upwards and hitting the operator.
-Amicroswitchpreventsthemachinefrombeingstartedifthecoverisnotloweredandstopsthemotor
when the cover is raised.
1.2 - FIELD OF USE
The wheel balancer is suitable for balancing car or motor-cycle wheels weighing under 65 kg.
It can be used at temperatures between -10° + 45° C.
It is able to measure radial geometric deformity (run-out) (Optional)
1.3 - OVERALL DIMENSIONS
Fig. 1

6- 0055
Fig. 2
1.4 - TECHNICAL DETAILS
Weight with cover (excluding flange)............. 138 kgmodel 800
..................................................................... 159kg model800P
Single-phasepowersupply ........................... 115-230 V 50-60 Hz
Insulationclass ............................................. IP 54
Max.powerinput........................................... 500 W
Monitor.......................................................... SVGA14"
Balancingspeed ........................................... - 180 min1
Cycle time for average wheel (14 kg)............ 6 seconds
Balancing precision ...................................... 1 gram
Positionresolution......................................... ± 1.4 °
Meannoiselevel ........................................... < 70 dB (A)
Rim - machine distance ................................ 0 - 285 mm
Settablerimwidth.......................................... 1.5" ÷ 20" or 40 ÷ 510 mm
Settablediameter .......................................... 10" ÷ 24" or 265 ÷ 615 mm
Totaldiameterofwheelwithincover.............. 1067 mm (42")
Totalwidthofwheelwithincover ................... 500mm
Max.wheelweight ......................................... 65 kg
Min/maxcompressed-airpressure ................ 7 ÷ 10 kg/cm2
~ 0.7 ÷ 1 Mpa;
~ 7 ÷ 10 BAR;
~ 100 ÷ 145 PSI.
2 - HANDLING, LIFTING
NOTE: DO NOT RAISE THE WHEEL BALANCER USING DIFFERENT LIFTING POINTS
Fig. 3

0055 - 7
3 - SETTING UP
3.1 - SECURING
The machine can operate on any flat non-elastic surface.
Makes sure only the 2 support points (fig. 3) actually touch the floor.
If possible, we recommend securing the machine to the floor by means of the feet (see figure 3).
3.2 - POWER CONNECTIONS
The machine features a single phase and earth lead.
The power voltage (and mains frequency) is shown on the machine identification plate and cannot be
changed.
Mains connection must be done by expert personnel.
The machine must not be started until it is properly earthed
Connection to the power mains must be made using a slow-acting safety switch set at 2A (230V) or 4A
(115V).
3.3 - PNEUMATIC CONNECTIONS (Model P)
To set up operation of the pneumatic clamping chuck (constant thrust gas-operated spring), connect the
wheel balancer to the compressed-air system. The connection fitting is on the rear of the wheel balancer.
At least 7 kg per sq cm (~ 7 MPa; ~ 7 BAR; ~ 100 PSI) are needed to ensure correct operation of the
releasemechanism.
3.4 - FURTHER SAFETY DEVICES (MODEL P)
- Wheel always locked even in the event of a pressure break during the balancing cycle
- Rotating-block wheel clamping device to prevent the wheel coming off the flange in the event of
thepneumaticclampingpedalbeingaccidentallypressedduringthebalancingcycle
Always operate the release control pedal when the machine is at a standstill, thereby preventing
abnormal flange stress and wear.
3.5 - FITTING THE FLANGE
The wheel balancer features a cone flange for securing wheels with centre hole. Other optional flanges can
be fitted:
Fig. 4 Fig. 4A
800 a) Remove the threaded end section A after removing
screw B.
b) Fit the new flange
800P a) Unscrew rod B
b) Unscrew end section A
c) Fit the new flange
ABAB
3.6 - FITTING AND ADJUSTING THE PROTECTION COVER (Table 4 - Exploded drawings)
a) Secure the components to the bed as described in exploded table 4.
b) The position of the closed cover can be adjusted by means of the screw accessible from the rear. The
correct position is shown in Fig. 1
c) Make sure the microswitch is pressed when the cover is closed.
d) Adjust the angular position of the microswitch control (item 403).

8- 0055
4 - CONTROLS AND COMPONENTS
4.1 - BRAKE PEDAL
Fig. 5
Fig. 6
4.2 - PNEUMATIC LOCKING PEDAL (Model P)
4.3 - DISTANCE AND DIAMETER MEASUREMENT GAUGE
For measuring the distance and the diameter of the wheel at the point where the counterweight is fitted.
The same gauge can be used to correctly position the counterweights inside, using the specific function
(see 5.5.1) for visual display-reading the position used for measurement, inside the rim. (For calibration,
see 7.4.1)
4.4 - WIDTH MEASUREMENT GAUGE (OPTION)
For measuring the width of the wheel to be balanced at the counterweight fitting point.
(See para. 5.3.1)
4.5 - AUTOMATIC WHEEL POSITIONING
At the end of the spin, the wheel is positioned in line with the unbalance on the outer sidewall or on the
static(whenselected)
Positioning is automatically disabled in the case of wheels below 13" in diameter.
Precision is ± 20 degrees for wheels weighing up to 25 kg
4.6 - CLOCK MANAGEMENT
The wheel balancer features a clock having an operating-autonomy, with the machine off, of about one
month. In the event of the machine being shut off for long periods, when first starting this up, check and, if
necessary, reset the time (see 6.9).
Thisenables the operator to hold the wheel fast during
counterweight fitting. This must not be operated
during the measurement cycle.
For releasing the wheel on the flange. Do not operate
duringmachinecycleand/orwhenflangesdifferentto
standard-cone flanges are fitted.

0055 - 9
4.7 - KEYBOARD
Note: Only press the keys with fingers; do not use counterweight pliers or other
pointed tools.
Fig. 7 Function keys: for immediate selection of functions shown on screen
Specialfunctions
selection Confirm Measurement cycle start Machinecyclestop

10 - 0055
Enabledkeys
MENU
: main functions frame (see 5.2)
: type of correction (see 5.5.4)
: balancing spin (see 5.5)
Dimensions gauge: when this is pulled out, the dimensions frame is selected (see 5.3)
Ifthemachinestaysontheinitialframeforatimewhichcanbesetonthevisualdisplayunitwithoutbeingused,
thiswillautomaticallyswitchtoascreensaver.Ifanykeyistouchedorthewheelordistance+diametergauge
aremoved,thescreenwillautomaticallyswitchbacktotheinitialframe.Automaticprotection-coverstartisnot
possible from screen saver for safety reasons.
5.1.2 SCREEN SAVER FRAME
5 - WHEEL BALANCER INDICATIONS AND OPERATION
The screen provides and shows various details, as well as numerous operating options for the operator.
Such information is split into "frames" or "display pages".
5.1 - INITIAL FRAME
Note: Name of wheel balancer owner. This can be set on the visual-display unit (See para. 7.2)

0055 - 11
5.2 - MENU ACCESS DIAGRAM
Note: - the symbol " ... " indicates the presence of another menu
- to return to the previous menu, press key
- to return to initial frame press key
HOME
STOP
MENU
selection
user
management
FOR EXPERT PERSONNEL ONLY
PASSWORD : + + +
A
B
CD
E
F
G
MENU
User
control
(5.4)
User referenceUser reference
User referenceUser reference
User reference
User saveUser save
User saveUser save
User save
OptimizationOptimization
OptimizationOptimization
Optimization
DimensionsDimensions
DimensionsDimensions
Dimensions
StatisticsStatistics
StatisticsStatistics
Statistics
Set-upSet-up
Set-upSet-up
Set-up
Special functionsSpecial functions
Special functionsSpecial functions
Special functions
LanguageLanguage
LanguageLanguage
Language
Unbalance measurement unitUnbalance measurement unit
Unbalance measurement unitUnbalance measurement unit
Unbalance measurement unit
Unbalance visual. thresholdUnbalance visual. threshold
Unbalance visual. thresholdUnbalance visual. threshold
Unbalance visual. threshold
Unbalance visual. stepUnbalance visual. step
Unbalance visual. stepUnbalance visual. step
Unbalance visual. step
Spin with protection cover closedSpin with protection cover closed
Spin with protection cover closedSpin with protection cover closed
Spin with protection cover closed
Screen saver timeScreen saver time
Screen saver timeScreen saver time
Screen saver time
NextNext
NextNext
Next
SPECIAL FUNCTIONS SELECTIONSSPECIAL FUNCTIONS SELECTIONS
SPECIAL FUNCTIONS SELECTIONSSPECIAL FUNCTIONS SELECTIONS
SPECIAL FUNCTIONS SELECTIONS
Width measurementWidth measurement
Width measurementWidth measurement
Width measurement
Adhesive weight dispenserAdhesive weight dispenser
Adhesive weight dispenserAdhesive weight dispenser
Adhesive weight dispenser
Run-out measurementRun-out measurement
Run-out measurementRun-out measurement
Run-out measurement
General customer detailsGeneral customer details
General customer detailsGeneral customer details
General customer details
User namesUser names
User namesUser names
User names
SettingsSettings
SettingsSettings
Settings
SETTINGSSETTINGS
SETTINGSSETTINGS
SETTINGS
PotentiometersPotentiometers
PotentiometersPotentiometers
Potentiometers
Adhesive weight dispenserAdhesive weight dispenser
Adhesive weight dispenserAdhesive weight dispenser
Adhesive weight dispenser
Run-out correctionRun-out correction
Run-out correctionRun-out correction
Run-out correction
Wheel-balancer self-calibrationWheel-balancer self-calibration
Wheel-balancer self-calibrationWheel-balancer self-calibration
Wheel-balancer self-calibration
SETTINGSSETTINGS
SETTINGSSETTINGS
SETTINGS
DistanceDistance
DistanceDistance
Distance
DiameterDiameter
DiameterDiameter
Diameter
WidthWidth
WidthWidth
Width
MACHINE PARAMETER SET-UPMACHINE PARAMETER SET-UP
MACHINE PARAMETER SET-UPMACHINE PARAMETER SET-UP
MACHINE PARAMETER SET-UP
Run-out visual checkRun-out visual check
Run-out visual checkRun-out visual check
Run-out visual check
Acoustic signalAcoustic signal
Acoustic signalAcoustic signal
Acoustic signal
Clock settingClock setting
Clock settingClock setting
Clock setting
PreviousPrevious
PreviousPrevious
Previous
MACHINE PARAMETER SET-UPMACHINE PARAMETER SET-UP
MACHINE PARAMETER SET-UPMACHINE PARAMETER SET-UP
MACHINE PARAMETER SET-UP
CancelCancel
CancelCancel
Cancel
English
CancelCancel
CancelCancel
Cancel
CancelCancel
CancelCancel
Cancel
CancelCancel
CancelCancel
Cancel
CancelCancel
CancelCancel
Cancel
CancelCancel
CancelCancel
Cancel
Wheel balancer self-testWheel balancer self-test
Wheel balancer self-testWheel balancer self-test
Wheel balancer self-test

12 - 0055
5.3 - SETTING THE WHEEL DIMENSIONS
5.3.1AUTOMATICSETTING
Fig. 8
Thedisplaypageappearsshowingthedistance+diametermeasurementgauge.
The"acquireddimension"indicationisindicatedbythesymbolofthecorrectionweightchangingfrombluetored.
-Standardwheels:Usingthespecialgrip,movetheendofthegaugeagainsttherim,pushthegripperupwards
and wait for the weight symbol on the screen to change from blue to red.
In the case of acoustic signal enabled (see 6.8), dimension acquisition is indicated by a "beep".
The calibration thus made is required for ALU 1,2,3,4 CTS, Static and Dynamic modes.
Manual setting can be made using the buttons as described at 5.3.3
- Press button to switch to manual width setting:
Manual End
Unit EndSelect

0055 - 13
- Set the nominal width, normally indicated on the rim, or
determine the width "b" with the caliper provided.
- Press button to returnto the measurementframe
"AUTOMATICWIDTH"OPTION
-Move both gaugesto measuring positionasshown below:
Fig.8A DISTANCE+DIAMETERgauge
Fig. 8B WIDTHgauge
During movement, the symbols of the screen (see fig. 8C/8D) move to show that the gauges are not stable.
- Keep the gauges still in position for about 2 seconds
- Data storage is indicated by the colour of the correction weights which passes from blue to red.
- Return the gauges to idle position.
N.B. - If the symbols in fig. 8C/8D remain on the screen, this means that at least the relevant
measurement gauge is not in idle position.
- The two measurements (distance+diameter and width) can be made at different times. In this case,
first of all determine (distance + diameter). The correct position of the gauge prods is most
importantforprecise measurement.Wrongdistancemeasurement meanswrongwidth
measurement;comparethecalculated measurementwiththenominalwidthshownonthe rim,
(errors up to ½" do not normally cause substantial problems).

14 - 0055
Theenabledbuttonsare:
Manualdimensionsettingframeselection
/
HOME
STOP
Return to initial frame.
Balancingspin
5.3.2RETRIEVINGSTOREDMEASUREMENTS
\ \ \ Pressthe namebutton and then:
-press toretrievestoredmeasurements(5.4),ignoringothermeasurements
madeinthemeantime.
- press to save the currently set dimensions
- ALU-M wheel (correction from inside for two balancing levels with direct calibration)
After measuring the inner sidewall FI, as shown in fig. 9, further remove the gauge to store the data of the
outer sidewall FE. Note: Once the positions have been achieved, always push the calipers upwards and
hold these still for at least 2 seconds. The counterweight symbols will change colour.
In the event of an acoustic signal being engaged (see 6.8), data acquisition is accompanied by a "beep".
Fig. 9
Fig. 8D
Fig. 8C
Manual End

0055 - 15
5.3.3 - MANUAL SETTING (Only use in special cases or for checking)
If necessary, dimensions can be entered or changed manually as follows:
- press
MENU
+ or press from automatic dimensions frame (accessible by pulling out
the distance + diameter gauge);
- press to select the dimension to be set (displayed in red);
- press / to set the desired value;
- press to change the unit of measurement.
Definitionofdimensions:
= DIAMETER : Set the nominal diameter indicated on the rim.
= WIDTH : Setthe nominalwidth shownon the rim
= DISTANCE : With gauge idle, determine the distance in cm of the machine wheel. Set the
valueremoving1.5cm.
Fig. 10
Unit

16 - 0055
5.4 - USER MANAGEMENT
The wheel balancer can be used at the same time by 4 different users who, by means of a simple
sequence can store their work condition and retrieve this in case of need. The names of the users can be
stored (7.2)
5.4.1 - USER STORAGE
- Correctly set the dimensions as already described at paragraphs 5.3.1 and 5.3.3
- Press
MENU
; the "MENU" window will appear on the screen
- Press ; the window will display a list of available USERS. The current USER is indicated in red.
- Press the number indicating the desired USER. The system will automatically return to the initial frame.
5.4.2 - USER RETRIEVAL
- Make a measurement spin with any dimensions
- Press the
MENU
button ; the "MENU" window will appear on the screen
- Press , the window will display a list of available USERS. The current USER is indicated in red.
-Press the number indicating the desired USER. The system will automaticallyreturn tothe initialframe with
recalculationof the unbalance values based on the actual dimensionsof theretrieved USER.
- Alternatively, proceed as indicated at paragraph 5.3.2
N.B. : - the dimensions stored as USER are lost when the machine is switched off;
- USER management is also valid for ALU-M dimensions;
- the current USER is always displayed on the measurement and dimension frames
Usersave
Cancel

0055 - 17
5.5 - MEASUREMENT RESULT
Aftermaking a balancingspin, the unbalancevalues are displayedalong with arrowsuseful for positioningat
the point of application of the correction weight. After positioning the wheel, fit the weight upwards along the
vertical.
In the event of minor unbalance of the set threshold value, instead of the unbalance value, "OK" is displayed
toindicatethat,onthatsidewall,thewheeliswithintolerancelevels;bypressing ,theoutstandingvalue
can be displayed, with a precision of 0.5 g (0.1 oz).
Theenabledbuttonsare:
Outstandingbalancedisplay
Correction procedure selection (DYNAMIC, STATIC, ALU1, ALU2, ALU3, ALU4, CTS). By
changing procedure, the automatic recalculation occurs of the unbalance values in accordance
with the previous spin (5.5.4).
Run-outmeasurementgraph(optional)
Imbalancedivisionmanagementonsettablecomponents(5.5.2).Buttononlyenabledwith
STATIC or ALU M correction.
Longitudinalunbalanceposition(5.5.1) enabled
MENU
Selection of special functions
Balancingspin
N.B.: If the machine stays in this frame without being used for longer than the time set in the Setup
parameters (6), the frame automatically returns to screen-saver.
Fine

18 - 0055
5.5.1 - INDICATION OF EXACT POSITION OF CORRECTION WEIGHTS
It is always best to use this function for correcting unbalance using adhesive weights: ALU 1, ALU 2, ALU
3, ALU M.
This function is designed to cancel any approximation in fitting counterweights, with consequent reduction
ofoutstandingunbalance.
- Press button on the measurement panel
-Remove the distance+diametergauge. Movement ofthe weight towardsthe correction positionis
indicated by a coloured arrow that moves [ ].
- Once a fixed arrow [ ] has been reached, turn the wheel to correction position (FI or FE) and fit the
counterweight,turningthe clamp upwardsuntilthisattaches to thewheel.
In the event of the acoustic alarm being engaged (see 6.8), when a fixed arrow [ ] is reached, a
"beep" is heard.
Fig. 11

0055 - 19
5.5.2 - "SPLIT" MANAGEMENT
SPLIT is only possible in the case of outer sidewall static or ALU-M unbalance. Its purpose is to hide any
unbalance correction adhesive weights behind the spokes of the rim.
SETTING THE NUMBER OF RIM SPOKES
- Press on the STATIC or ALU-M measurement panel;
- - A window will appear on the screen indicating the number of spokes currently set
- Set the number of desired spokes in a range between 3-12 by means of button and
- press to confirm the setting
-Move aspoke upwards along the vertical
-press ;themeasurementpanelwillreappearonthescreenwiththeunbalancefiguresalreadysplitup.
TheinnersidewallALU-Munbalancedoesnotvary,whilefortheoutersidewallSTATICandALU-Munbalance,
twoweightsappearforthesamesidewall:
- slowly turn the wheel until an unbalance figure appears;
-fitanadhesiveweightofthedisplayedvalue,fortheoutersidewallorSTATIC,behindthespokeuppermost
alongthevertical;
- again turn the wheel until a new unbalance value appears;
-fitanadhesiveweightofthedisplayedvalue,fortheoutersidewallorSTATIC,behindthespokeuppermost
alongthevertical;
- make a spin to check correct wheel balance.
Note: if SPLIT is engaged, the icon will appear in the lower part of the screen.
input

20 - 0055
5.5.3-UNBALANCEOPTIMISATION
Thesymbol isautomaticallydisplayedforstaticunbalanceover30grams(1.1oz).Theprogramallows
reducingtotalwheelunbalance,offsetting,wheneverpossible,thetyreunbalancewiththatoftherim.Twospins
are required with rotation of the tyre on the rim at the second spin.
Press
MENU
+ after making the first spin and follow the instructions that appear on the screen.
5.5.4 - ALU AND STATIC MODE
Pressbutton :onthemeasurementpanel:awindowwillappearonthescreenshowingthemodeoptions.
Selectthetyperequiredbymeansofthenumericbuttons.Returntomeasurementpanelwithrecalculatedfigures
isautomatic.Theuppersectionofthescreenalways shows a symbol indicating theenabledfittingpositionof
theweights.
UNBALANCEOPTIMISATION
IMPORTANT!!!The previousspin musthave beenmade
withthecurrentlyfittedwheels.
Makeareferencemarktoindicatetherim-flangeposition
inordertorefit the rim on the flange inthesameposition.
Removethe wheelfrom thewheel balancer.
Turnthetyreby 180° on the rim.
Refitthewheelon the wheel balancer so the rimand
flangereferencescoincide.
Close the cover and press (START) End
Static
Dynamic
TYPE OF CORRECTION