Instructions for use
TABLE OF CONTENTS Page
1 - GENERAL .....................................................................................................................................................................3
1.1 - GENERAL SAFETY REGULATIONS ................................................................................................................3
1.1.1 - STANDARD SAFETY DEVICES ..........................................................................................................3
1.2 - FIELD OF APPLICATION .................................................................................................................................3
1.3 - OVERALL DIMENSIONS ..................................................................................................................................3
1.4- TECHNICAL DATA..............................................................................................................................................4
2 - HANDLING AND LIFTING ...........................................................................................................................................4
3 - STARTUP .....................................................................................................................................................................4
3.1 - ANCHORING......................................................................................................................................................4
3.2 - ELECTRICAL CONNECTION ........................................................................................................................... 4
3.3 - FLANGE MOUNTING.........................................................................................................................................5
3.4 - WHEEL GUARD ASSEMBLY AND ADJUSTMENT (OPTIONAL) ..................................................................... 5
3.5 - WD SPACER .....................................................................................................................................................5
4 - CONTROLS AND COMPONENTS ..............................................................................................................................5
4.1 - MANUAL DISTANCE MEASUREMENT GAUGE .............................................................................................5
4.2 - KEYBOARD AND DISPLAY ...............................................................................................................................6
4.2.1 FUNCTION MENU MANAGEMENT ........................................................................................................7
5 - INSTRUCTIONS FOR USE OF THE WHEEL BALANCER ........................................................................................8
5.1 - SETTING THE WHEEL DIMENSIONS ............................................................................................................ 8
5.2 - MEASUREMENT RESULT ............................................................................................................................. 11
5.3 - RECALCULATION OF THE UNBALANCE VALUES ...................................................................................... 11
5.4 - SPLIT FUNCTION (hidden weight) ..................................................................................................................12
5.5 - OUT OF BALANCE OPTIMIZATION................................................................................................................ 13
5.6 - AUTOMATIC MINIMISATION OF STATIC UNBALANCE ...............................................................................14
6 - SET-UP ......................................................................................................................................................................15
6.1 - AUTODIAGNOSTICS.......................................................................................................................................15
6.2 - AUTOCALIBRATION........................................................................................................................................15
7 - ERRORS ....................................................................................................................................................................16
7.1 - INCONSISTENT UNBALANCE READINGS ..................................................................................................17
8 - ROUTINE MAINTENANCE ........................................................................................................................................17
8.1 - REPLACING THE PROTECTION FUSES ......................................................................................................17
9 - LIST OF RECOMMENDED SPARE PARTS ...............................................................................................................17
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1 - General
1.1 - General safety regulations
-The wheel balancer may only be used by duly authorized and trained personnel.
- The wheel balancer must not be used for purposes other than those described in the instruction manual.
- The wheel balancer must not be modifi ed in any way except for those modifi cations made
explicitly by the manufacturer.
- Do not remove the safety devices. Any work on the machine must be carried out by specialised personnel
only.
- Avoid using strong jets of compressed air for cleaning.
- Use alcohol to clean plastic panels or shelves (AVOID LIQUIDS CONTAINING SOLVENTS).
- Before starting the wheel balancing cycle, make sure that the wheel is securely locked on the fl ange.
- The machine operator must not wear clothes with fl apping parts. Do not allow unauthorized personnel to
approach the wheel balancer when the cycle is running.
- Avoid placing objects in the base which could impair the correct operation of the wheel balancing machine.
- Before disassembling the weight shelf, remove the guard (see specifi c instructions)
1.1.1 - Standard safety devices
- Stop push button for stopping the wheel under emergency conditions.
- The wheel guard is not compulsory since the balancing speed is less than 100 min
1.2 - Field of application
The machine is designed for balancing wheels of cars, light commercial vehicles or motorcycles weighing less than 75 kg.
It can be operated in a temperature range of 0° to + 45° C.
The following functions are provided: ALU-S; SPLIT; Unbalance optimisation; Autodiagnostics; Autocalibration.
-1.
1.3 - Overall dimensions (standard guard)
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1.4 - Technical data
Note: DO NOT LIFT THE WHEEL BALANCER USING OTHER GRIPS
Single-phase power supply 115 / 230 V - 50/60 Hz
Protection class IP 54
Max. power absorbed 0,8 Kw
Balancing speed < 100 min
-1
Cycle time for average wheel (14 kg) 6-8 seconds
Max. resolution of measurement 1 gram
Position resolution ± 1.4 °
Average noise < 70dB (A)
Rim-machine distance 0 - 252 mm
Rim width setting range 1.5” - 20” or 40 - 510 mm
Diameter setting range 10” - 26” or 265 - 665 mm
2 - Handling and lifting
3 - Startup
3.1 - Anchoring
The machine can operate on any at non resilient oor.
Make sure that the machine rests solely on the three support points provided (Fig.2a).
It is advisable to secure the system to the ground using the speci c feet (Fig. 2a). if the machine is
continually used with wheels weighing over 35 kg.
3.2 - Electrical connection
The machine is supplied with a single-phase mains cable plus earth (ground).
The power supply voltage (and mains frequency) is indicated on the machine identi cation plate and cannot be
changed.
Connection to the mains must always be made by expert personnel.
The machine must not be set up without proper earthing.
Connection to the mains should be through a slow acting safety switch rated at 3 A (230V) or 8 A(115 V).
See enclosed diagram.
3.3 - Flange mounting
3
The wheel balancer is supplied complete with cone
anges
for xing wheels with a central hole. Other optional
anges can be mounted:
a) Remove the threaded end-piece A after unscrewing
the screw B.
b) Mount the new ange (see attached sheets).
Note: CAREFULLY CLEAN THE COUPLING
SURFACES BEFORE PERFORMING ANY
OPERATION.
3.4 - Wheel guard assembly and adjustment (optional)
Fix the components to the base as described in the attachment “WHEEL GUARD ASSEMBLY SEQUENCE” at
the end of the manual.
N.B.: Do not lean on the guard during the wheel balancing cycle.
3.5 - WD spacer (option)
When balancing very wide wheels (9”), there is not enough space to turn the distance gauge. To move the wheel
away from the machine side, t the WD spacer on the ange body and secure it with the standard issue nuts. When
centring the wheel with cone from the inside, mount the DC spacer to obtain spring thrust.
3a
4 - Controls and components
4.1 - Manual distance measurement gauge
This gauge serves to manually measure the distance between the point of application of the counterweight and the
machine.
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4.2 - Keyboard and display
4
1
2
10
9
3
1-2 Digital readouts, AMOUNT OF UNBALANCE, inside/
outside
3-4 Digital readouts, POSITION OF UNBALANCE,
inside/outside
5 Inside correction mode selection button
6 Indicators, correction mode selected
7 Outside correction mode selection button
8 Special function indicators
9 Manual DISTANCE setting button
10 Manual WIDTH setting button
5
6
11
7
8
15
16
12
18
19
17
4
11 Manual DIAMETER setting button
12 Push button, FUNCTION MENU
13 Balancing cycle stop button
14 Balancing cycle start button
15 Unbalance optimization push button
16 Push button, SPLIT (unbalance resolution)
17 HOME push button
18 MENU selection conrmation pushbutton
19 Push button, unbalance reading < 5 g (.25 oz)
13
14
Note: Press buttons only with your ngers. Do not use the counterweight grippers or other pointed objects.
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4.2.1 - Function menu management
mm/inch
diameter
mm/inch
width
start from guard
closing
approx. -5 g or
0.1-0.25 oz
See chapter on AUTODIAGNOSTICS
See chapter on AUTOCALIBRATION
RETURN TO MEASUREMENT FRAME
g/oz unit of
measure
unbalance
CONFIRM
CONFIRM
CONFIRM
CONFIRM
CONFIRM
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5 - Instructions for use of the wheel balancer
5.1 - Setting the wheel dimensions
a)
From the measurement frame, press
The illuminated LEDs indicate the position where the weights should be applied. If a spin has already been carried
out, each time the mode is changed, the processor automatically recalculates the unbalance values on the basis of
the new setting.
- Measuring
5
Reading
DYNAMIC balancing of steel or light alloy rims with application of clip-on
weights on the edge of the rim.
inside and outside to select the desired correction mode.
- Setting
- Set the distance “a” between the inside of the wheel
and the machine
- Set the nominal width, normally indicated on the
rim, or measure the width “b” using the caliper
gauge supplied.
- Set the nominal diameter “d” indicated on the tyre.
This setting is also valid for the following correction modes:
The STATIC mode is required for motorcycle wheels or when it is not possible to
place the counterweights on the two sides of the rim.
Balancing of light alloy rims with application of adhesive weights on the shoulders of
the rims. The position of the weights is xed from the edges of the rim to the inside of
the rim.
Combined balancing: adhesive weight on the outside and clip-on weight on the inside.
The position of the outside weight is xed from the outside edge of the rim to the inside
of the rim.
Combined balancing: adhesive weight on the inside and clip-on weight on the
outside. The position of the inside weight is xed from the edge of the rim to the inside
of the rim
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+
- Measuring:
6
Setting:
Balancing of alloy rims with hidden application of the outside adhesive weight.
The position of the weights can be set.
0 gauge
Outside
Note: not setting dE as it is automatic, dE = d - 2”
(Nominal)
Note: Hold the
button down for more
than 2 seconds when the
value of any one of the
dimensions appears on
the display.
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c)
- Measuring:
Setting:
Combined balancing: clip-on weight on the inside and hidden adhesive
weight on the outside (Mercedes).
The position of the weights can be set.
7
0 gauge
Outside
Note: not setting dE as it is automatic, dE = d - 2”.
(Nominal)
Note: Hold the
button down for more
than 2 seconds when the
value of any one of the
dimensions appears on
the display.
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5.2 - Measurement result
8a
8b
Inside correction
Outside correction
After performing a balancing spin, the amounts of unbalance are shown on the digital readouts.
The illuminated LEDs 3 and 4 indicate the correct angular position of the wheel to mount the counterweights (12
o’clock).
If the unbalance is less than the threshold value selected,
the values below the threshold can be read, selected gram by gram.
Note : in the case of wheels with a diameter less than or equal to 13” and at temperature conditions near 0°, the wheel
balancer automatically inserts a special measuring cycle composed of two successive measurements.
The accuracy of the unbalance values and the reliability of the wheel balancer remain unchanged. This type of
operation is reset each time the wheel balancer is started.
is displayed instead of the unbalance value; with
5.3 - Recalculation of the unbalance values
Press after new setting of the measurement.
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30
15
15
30
30
15
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5.4 - Split function (hidden weight)
The SPLIT function is used to position the adhesive weights behind the wheel spokes so that they are not visible. This
function should be used only in the case of static unbalance or where the hidden adhesive weight is to be applied on the
outside. Input the wheel dimensions and do a spin.
Start the SPLIT function as follows:
Example of display prior to SPLIT function
- Place the wheel in the outside unbalance correction
position.
- Set one of the top spokes (preferably the one to the left of the
unbalance) to 12 o’clock.
- Press the button
- Follow the UP/DOWN indication of the positioning LEDs and
set the second top spoke to 12 o’clock.
- Press button
- Set the rst split unbalance to correction position 1
- Correction position 1
- Set the second split unbalance to correction position 2
- Correction position 2
N.B.: If error 24 is displayed, repeat the SPLIT function ensuring that the minimum distance between the spokes is
greater than 18 degrees. If error 25 is displayed,repeat the split function ensuring that the maximum distance
between the spikes is smaller than 120 degrees.
To return to normal unbalance display, press any button.
To carry out a new spin, press the
button.
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5.5 - Out of balance optimization
- This function serves to reduce the amount of weight to be added in order to balance the wheel
- It is suitable for static unbalance greater than 30 g.
- It improves the residual eccentricity of the tyre.
The led lights up
No previous unbalance
measurement
Unbalance already measured
unbalance measurement
- With a piece of chalk make a reference mark on the ange and the rim
- With the aid of a tyre remover, turn the tyre on the rim by 180°
- Ret the wheel in such a way that the reference marks on the rim and the ange
coincide.
TYRE
POSITION
RIM
POSITION
- RH display: percentage reduction value
- LH display: actual static unbalance value which can be reduced by rotation
- Mark the two positions of the rim and tyre, and turn the tyre on the rim until the
positions correspond in order to obtain the optimization on the display.
CANCEL OPTIMISATION IN ANY PHASE
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5.6 - Automatic minimisation of static unbalance
Initial unbalance
Phase shift
Possible approximations
static residue
With traditional wheel
balancer
This program is designed to improve the quality of balancing without any mental effort or waste of time by the operator.
In fact, using the normal weights available on the market (pitch of 5 in every 5 g) and applying the two counterweights
which a conventional wheel balancer rounds to the nearest value, a residual static unbalance of up to 4 g may result.
The damage of such approximation is emphasized by the fact that static unbalance is the cause of most disturbances
on vehicles. This new function automatically indicates the optimum entity of the weights to apply by approximating
them in an “intelligent” way according to their position in order to minimize residual static unbalance.
static residue
static residue
Choice with minimum
static unbalance
static residue
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6 - Set-up
6.1 - Autodiagnostics
Performs tests useful for maintenance staff.
6.2 - Autocalibration
For autocalibration proceed as follows:
- Fit a wheel with steel rim of average dimensions on the shaft. Example 6” x 14” (± 1”)
- Set the exact dimensions of the wheel mounted.
CAUTION !! Setting incorrect dimensions will result in the machine not being properly calibrated and hence all the
subsequent measurements will be incorrect until a new autocalibration is performed with the correct
dimensions!!
- Perform a spin under normal conditions.
- Add a 100 g. sample weight (3.5 oz) on the outside in any angular position.
- Shift the sample weight from the outside to the inside keeping the same
angular position.
- Turn the wheel until the sample weight is in the 12 o’clock position.
END OF AUTOCALIBRATION
CANCEL AUTOCALIBRATION IN ANY PHASE
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7 - Errors
During machine operation there may be various causes of malfunctioning which, if detected by the microprocessor,
are indicated on the display:
ERRORS CAUSES CONTROLS
Black The wheel balancer does not come on. 1. Check proper connection to the mains.
Err. 1 No rotation signal. 1. Check belt tautness.
Err. 2 Too low speed during measurement.
Err. 3 Too high unbalance. 1. Check the wheel dimension setting.
Err. 4 Rotation in opposite direction.
Err. 5 Guard open
Err. 7 /
Err. 8 /
Err. 9
Err. 11 Too high speed error.
Err.14/
Err.15/
Err.16/
Err.17/
Err. 18/
Err. 19
Err.21 Motor on for more than 15 seconds. 1. Check functioning of the phase generator.
Err.22 Maximum number of spins possible for
Err. 24 Distance between the spokes smaller
Err. 25 Distance between the spokes greater
During the unbalance measurement
revolutions, the wheel speed has fallen to
below 42 rpm.
After pressing [START], the wheel
starts turning in the opposite direction
(anticlockwise).
The [START] pushbutton was pressed
without rst closing the guard.
NOVRAM parameter read error 1. Repeat machine calibration
The average spinning speed is greater than
240 rpm.
Unbalance measurement error. 1. Check functioning of the phase generator.
the unbalance measurement has been
exceeded.
than 18 degrees.
than 120 degree
2. Check and if necessary replace the fuses on the power board.
3. Replace the computer board.
2. Check functioning of the phase generator and, in particular, the
reset signal.
3. Replace the phase generator.
4. Replace the computer board.
1. Check that a vehicle wheel has been mounted on the wheel
balancer.
2. Check belt tautness.
3. Check functioning of the phase generator and, in particular, the
reset signal.
4. Replace the computer board.
2. Check the sensor connections.
3. Run the machine calibration function.
4. Mount a wheel with a more or less known unbalance (less than 100
grams) and check the machine response.
5. Replace the computer board.
1. Verify the connection of the UP/DOWN - RESET signals on the
phase generator.
1. Reset the error.
2. Close the guard.
3. Verify the function of the protection uSwitch.
4. Press the [START] button.
2. Shut down the machine.
3. Wait for at least ~ 1 min.
4. Restart the machine and check proper functioning.
5. Replace the computer board.
1. Check if there is any damage or dirt on the timing disc.
2. Check functioning of the phase generator and, in particular, the
reset signal.
3. Replace the computer board.
2. Check the sensor connections.
3. Check the machine earthing connection.
4. Mount a wheel with a more or less known unbalance (less than 100
grams) and check the machine response.
5. Replace the computer board.
2. Check the connections on the power board.
3. Replace the computer board.
1. Check that a vehicle wheel has been mounted on the wheel
balancer.
2. Check belt tautness.
3. Check functioning of the phase generator and, in particular, the
reset signal.
4. Replace the computer board.
1. The minimum distance between the spokes where to split the
unbalance must be greater than 18 degrees
2. Repeat the SPLIT function increasing the distance between the
spokes.
1. The minimum distance between the spokes where to split the
unbalance must be smaller than 120 degrees
2. Repeat the SPLIT function increasing the distance between the
spokes.
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Err.32/
Err.33/
Err.34/
Err.35/
Err.36/
Err.37
Errors related to test functions of the wheel
balancer.
1. Cancel the error and continue using the wheel balancer as normal.
7.1 - Inconsistent unbalance readings
It may occur that after balancing a wheel, when removing it from the wheel balancer and then remounting it, the
wheel is not balanced.
This is not the result of an incorrect indication by the machine, but only of incorrect mounting of the wheel on the
ange, i.e. in the two mountings the wheel has assumed a different position with respect to shaft axis of the wheel
balancer. If the wheel has been mounted on the ange with screws, it may be that the screws have not been tightened correctly in gradual criss-cross manner one after the other, or (as often occurs) holes have been drilled in the
wheel with too wide tolerances.
Small errors, up to 10 grams (0.4 oz), are to be considered normal in wheels locked with a cone: the error is normally
greater for wheels locked with screws or studs.
If, after balancing, the wheel is still unbalanced when retted on the vehicle, this could be due to the unbalance of
the brake drum or very often is due to the screw holes in the rim and the drum drilled with too wide tolerances. In this
case a readjustment would be advisable using the wheel balancer with the wheel mounted.
8 - Routine maintenance
Before carrying out any operation on the machine, cut the power supply to the machine.
8.1 - Replacing the protection fuses
A protection fuse is tted on the power board, accessible by dismantling the weight shelf (see Exploded Drawings). If
fuses require replacement, use ones with an identical current rating.
If the fault persists, contact Technical Service.
NONE OF THE OTHER MACHINE PARTS REQUIRE MAINTENANCE.
9 - List of recommended spare parts (references on exploded drawings)
CODE DESCRIPTION
020600503 Bearing 6005 - 2Z Ø 25/47/12
181198630 Spring 19863P
080077004 Rigid belt Poly V - TB2 - 770 - 4 crested
67M60192A Phase generator board with cable
05PR62338 LEXAN panel
181206560 Distance gauge spring
681002000 Fuse DM5x20 - 20A
511242101 Bipolar stub switch
86SC64705 Computer board
SPECIAL PARTS FOR 230 V MACHINES
50FG59009 Single-phase motor 230V/50-60 Hz - 0.12Kw HB63B-4
568001058 Capacitor 10MF 450V Faston vite/screw M8
67M56989A Power board
SPECIAL PARTS FOR 115 V MACHINES
50FG61456 Single-phase motor 115V/50-60 Hz - 0.12Kw HB63B-4
568003558 Capacitor 35MF 450V Faston vite/screw M8
67M56989D Power board
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