Instructions for use
I
CONTENTS
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 3
2 - HANDLING, LIFTING 4
3 - START- UP 4
3.1 - ANCHORING 4
3.2 - ELECTRICAL CONNECTION 4
3.3 - ADAPTER MOUNTING 4
3.4 - WHEEL MOUNTING 4
4 - CONTROLS AND COMPONENTS 5
4.1 - AUTOMATIC DISTANCE AND DIAMETER GAUGE 5
4.2 - WHEEL LIFTING DEVICE 5
4.3 - MANUAL SPINNING DEVICE 5
4.4 - CONTROL PANEL AND DISPLAY 5
4.4.1 - CONTROL OF THE FUNCTIONS MENU 6
5 - INDICATIONS AND USE OF THE WHEEL BALANCER 7
5.1 - PRESETTING OF WHEEL DIMENSIONS 7
5.1.1 - AUTOMATIC PRESETTING 7
5.1.1.1 - STANDARD WHEELS (calibration necessary also for STATIC & COMBINED MODES) 7
5.1.1.2 - STATIC & COMBINED MODES 8
5.1.1.3 - WHEEL ALUM 8
5.1.2 - MANUAL SETTING 9
5.1.2.1 - STEEL WHEEL RIMS 9
5.1.2.2 - WHEEL ALUM 9
5.1.2.3 - ALUM VARIANT WITH INSIDE CLAMP WEIGHT 10
5.2 - RECALCULATION OF THE UNBALANCE 10
5.3 - RESULT OF MEASUREMENT 10
5.3.1 - INDICATION OF EXACT CORRECTION POSITION 11
5.3.2 - SPLIT FUNCTION (UNBALANCE SPREAD) 12
5.3.3 - UNBALANCE OPTIMIZATION 13
5.3.4 - ALU AND STATIC MODES 14
5.3.5 - AUTOMATIC MINIMIZATION OF STATIC UNBALANCE 14
6 - SET UP 15
6.1 - SELF-DIAGNOSTICS 15
6.2 - SELF-CALIBRATION 16
6.3 - AUTOMATIC GAUGES CALIBRATION 17
6.3.1 - RIM DISTANCE GAUGE 17
6.3.2 - DIAMETER GAUGE 18
7 - ERRORS 19
7.1 - INCONSISTENT UNBALANCE READINGS 20
8 - ROUTINE MAINTENANCE 20
8.1 - TO REPLACE THE FUSES 20
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1 - GENERAL
1.1 - GENERAL SAFETY REGULATIONS
- The machine should only be used by authorized and suitably trained personnel.
- Do not use the machine for purposes other than those specifi ed in this manual.
- The machine should not be modifi ed in any way except for those modifi cations explicitly carried out by the
fi rm.
- Never remove the safety devices. Any work on the machine should only be carried out by specialist personnel.
- Avoid using strong jets of compressed air for cleaning.
- Use alcohol to clean the plastic panel or shelves (AVOID LIQUIDS CONTAINING SOLVENTS).
- Before starting the wheel balancing cycle, make sure that the wheel is securely locked on the adapter.
- The machine operator should avoid wearing clothes with fl apping edges. Make sure that unauthorized
personnel do not approach the machine during the work cycle.
- Avoid placing objects inside the base as they could impair the correct operation of the machine.
1.1.1 - STANDARD SAFETY DEVICES
- The wheel guard is not obligatory because the balancing speed is less than 100 r.p.m.
1.2 - Field of application
The machine is designed for balancing wheels of cars and motor vehicles weighing up to 250 kg.
It can be operated in the temperature range of 0°C to + 45°C.
The following functions are provided: ALUM, SPLIT; Unbalance optimization; Self diagnostics; Self calibration.
1.3 - OVERALL DIMENSIONS
1
1.4 - TECHNICAL DATA
Single-phase power supply 12 - 24 V DC 0,15 A
Protection class IP 54
Balancing speed 70 min
Balancing speed 100 min-1 CAR
Cycle time 8-20 seconds
Balancing accuracy 1 gram (car) - 10 grams (truck)
Position resolution ± 0.7°
Average noise < 70dB (A)
Rim-machine distance 0 - 300 mm
Rim width setting range 1.5” ÷ 20” or 40 ÷ 510 mm
Diameter setting range 10” ÷ 30” or 265 ÷ 765 mm
Max. wheel diameter 1240 mm
-1
TRUCK
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2 - HANDLING, LIFTING
2
N.B.: NEVER USE OTHER POINTS TO LIFT THE MACHINE.
3 - START- UP
2a
3.1 - ANCHORING
The machine can operate on any fl at non resilient fl oor without having to be anchored to the fl oor. Make sure that the
machine rests on the 3 mounting points provided (fi g. 2).
3.2 - ELECTRICAL CONNECTION
The machine is supplied with an AC power supply and power cable with 12-24 VDC battery.
The supply voltage is given on the machine nameplate. It cannot be changed.
Connection to mains should always be made by expert personnel.
3.3 - ADAPTER MOUNTING
The wheel balancer is supplied complete with cone type adapter for fastening wheels with central bore.
Other optional adapters can be mounted:
a) Remove threaded end piece A after backing off screw B.
b) Mount the new adapter (see enclosed brochures) .
3
NOTE : CAREFULLY CLEAN THE COUPLING SURFACES
BEFORE PERFORMING ANY OPERATION.
3.4 - WHEEL MOUNTING
The wheels should be fastened with one of the numerous adapters available (see enclosed brochures).
N.B.: Incorrect centering inevitably causes unbalance.
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4 - CONTROLS AND COMPONENTS
4.1 - AUTOMATIC DISTANCE AND DIAMETER GAUGE
This gauge allows measurement of the distance of the wheel from the machine and the wheel diameter at the point
of application of the counterweight. It also allows correct positioning of the counterweights on the inside by using
the specifi c function (see
used for the measurement within the rim.
4.2 - WHEEL LIFTING DEVICE
Allows lifting the wheel from the ground without using a lift in order to spin it.
It also allows lowering the wheel until it touches the ground in order to stop rotation
4.3 - MANUAL SPINNING DEVICE
Allows spinning the tyre until when the machine display turns off; this means that the minimum spindle rotation speed
has been reached to perform correct balancing (72’/min. for trucks and 100’/min. for cars). At this point, release the
handle and wait until the unbalance measured appears on the display.
4.4 - CONTROL PANEL AND DISPLAY
4
INDICATION OF EXACT CORRECTION WEIGHT POSITION ) which allows reading the position
1
13
6
3
16
6
15
14
1-2 Digital readouts, AMOUNT OF UNBALANCE,
inside/outside
3-4 Digital readouts, POSITION OF
UNBALANCE, inside/outside
5 Indicators, correction mode selected
6 Indicators, selection made
7 Push button, unbalance reading < 5 g (25 oz)
8 Push button, ounces/grams selection
9 Push button, selection of mode of correction
12
2
5
6
4
6
11
10 SPLIT push button (unbalance resolution)
11 Push button, FUNCTIONS MENU
12 Push button, menu selection confi rmation
13 Push button, car/truck selection
14 HOME Push button
15 Push buttons, manual dimensions setting
16 Position repeat
7
10
8
9
N.B.: Only use the fi ngers to press the push buttons. Never use the counterweight pincers or other pointed objects.
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4.4.1 - CONTROL OF THE FUNCTIONS MENU
See chapter on UNBALANCE OPTIMIZATION
diameter
mm/inch
width
mm/inch
approximates
1-5g or 0.1-.25 oz
approximates
10-50g or .25/1oz
See self-diagnostics chapter
See self-calibration chapter
Calibration of automatic RIM DISTANCE gauge
Calibration of automatic DIAMETER gauge
CONFIRM
CONFIRM
CONFIRM
CONFIRM
RETURNS TO MEASUREMENT SCREEN
- Provision for setting the balancing machine in car or truck mode:
by pressing button; LED lights up when the machine set to car mode.
- Unbalance display pitch:
Car = 1/5 g (.1/0.25 Oz) Truck = 10/50 g (.25/1 Oz)
When
is pressed, the unbalance is displayed with pitch:
Car = 1 g Truck = 10 g
.1 Oz .25 Oz
- Unbalance display threshold
Car = 5 g (.4 Oz) Truck = 50 g (2 Oz)
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5 - INDICATIONS AND USE OF THE WHEEL BALANCER
5.1 - PRESETTING OF WHEEL DIMENSIONS
5.1.1 - AUTOMATIC PRESETTING
5.1.1.1 - STANDARD WHEELS (CALIBRATION NECESSARY ALSO FOR STATIC & COMBINED MODES)
5
DISTANCE + DIAMETER
Move the gauge tip into contact against the rim keeping it in position for at least 2 seconds.
NOTE: Always use the round part of the distance-diameter gauge.
Indication of gauge in movement
Indication of dimensions acquired.
Return the gauge to position 0. The system automatically goes to the WIDTH position.
- The nominal width is normally stamped on the rim;
if not, proceed to measure dimension “
calibre gauge (supplied as standard).
with the
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5.1.1.2 - STATIC & COMBINED MODES
Button :
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 fi 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 fi 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 fi xed from the edge of the rim to the
inside of the rim.
5.1.1.3 - Wheel ALUM
6
FI
Position of
adhesive
weight
After measurement for inside F1 as shown, again remove the gauge in order to memorize the data for the outside FE;
keep the position for at least 2 seconds.
Press the button
If the machine detects a difference between the inside and the outside diameter greater than or equal to 2”, the fol-
lowing type of correction is automatically set:
to change the inside weight from adhesive to clip-on.
FE
Manual pressetting is possible by using the push buttons as for detailed hereunder.
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5.1.2 - MANUAL SETTING
5.1.2.1 - STEEL WHEEL RIMS
7
Press to select the dimension to set and to modify it
- Preset distance of the inside of the wheel from the machine
- Preset the nominal diameter indicated on the tyre.
- Preset the nominal width which is normally stamped on the rim; if not,
measure dimension with the capelier gauge (supplied as standard)
5.1.2.2 - WHEEL ALUM
- Measure the dimensions as shown in the following diagram.
8
0 gauge
PRESETTING:
Press to select the dimension to set and to modify it
14 mm car
20 mm truck
Note: if the outside diameter is not preset (
automatically calculates the following:
outside diameter (
) = inside diameter ( ) - 1".
) the system
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5.1.2.3 - ALUM VARIANT WITH INSIDE CLAMP WEIGHT
8a
0 gauge
Setting:
14 mm car
20 mm truck
Press
N.B.: when (
to select the dimension to set and to modify it
(Nominal)
) is not set, ( ) = - 2” is automatic.
5.2 - RECALCULATION OF THE UNBALANCE
Press after new setting of the measurement
5.3 - RESULT OF MEASUREMENT
Inside correction Outside correction
After performing a balancing spin, the amounts of unbalance are shown on the digital readouts. Digital readouts with
LED’s 3- 4 lit up indicate the correct angular wheel position to mount the counterweights (12 o’clock position).
If the unbalance is less than the threshold selected,
possible to read the values below the threshold chosen gram by gram.
NB: For wheel diameters less than or equal to 13” and at temperatures around 0° C, the wheel balancer automati-
cally initiates a special measurement cycle involving two consutive measurements. The precision of unbalace
values and the reliability of the wheel balancer are unaffected. If the mobile symbol
the end of any balancing start operation, turn the wheel by hand until the unbalance values are displayed.
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0 is displayed instead of the unbalance. With it is
should apper at
5.3.1 - INDICATION OF EXACT CORRECTION POSITION
Press the button if using the correction method with weights on the inside of the rim.
-
- Fit the correction weight in the specifi c gauge seat with the adhesive part
facing upwards
- bring the wheel into correct angular position for the plane to be
corrected.
- Pull the gauge further outwards.
- Return the gauge to the rest position.
INSIDE CORRECTION POSITION
OUTSIDE CORRECTION POSITION
- rotate the gauge until the correction weight adheres to the rim
- the fact that the weight application position is no longer vertical (Fig. 9) is automatically compensated
- to cancel this function, press button again.
9
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5.3.2 - SPLIT FUNCTION (UNBALANCE SPREAD)
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
15
30
15
30
- Set the fi rst split unbalance to correction position 1
- Correction position 1
15
30
- Set the second split unbalance to correction
position 2
30
15
- 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.
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5.3.3 - UNBALANCE 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 exceeding 30 g.
- It improves the residual eccentricity of the tyre.
Unbalance already measured
No previous unbalance
measurement
Perform a manual spin
unbalance measurement
- Mark with chalk a reference point on the adapter and rim.
- With the aid of a tyre remover, turn the tyre on he rim by 180°.
- Refi t the wheel with the reference mark coinciding between rim and
adapter.
- Perform a manual spin under normal conditions
- RH display: percentage reduction
- LH display: actual static unbalance which can be reduced by rotation.
TYRE POSITION
RIM POSITION
- 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.
RETURN TO MEASUREMENT SCREEN.
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5.3.4 - ALU AND STATIC MODES
From the measurement screen, press the button to select all the correction types (see AUTOMATIC
PRESETTING). The (5)-LED displays show the position where to apply the weights. If a spin has already been perfor-
med, the processor automatically recalculates, for each change of mode, the amounts of unbalance according to the
new calculation.
5.3.5 - AUTOMATIC MINIMIZATION OF STATIC UNBALANCE
Initial unbalance
Position
Possible approximations
static residual static residual static residual static residual
With a traditional Choice with minimum
balancing machine static residual
This program is designed to improve the quality of balancing without any mental effort or loss of time by the operator.
In fact by using the normal commercially available weights, with pitch of 5 in every 5 g, and by applying the two counterweights which a conventional wheel balancer rounds to the nearest value, there could be a residual static unbalance
of up to 4 g. The damage of such approximation is emphasized by the fact that static unbalance is cause of most of
disturbances on the vehicle. This new function automatically indicates the optimum entity of the weights to be applied by
approximating them in an “intelligent” way according to their position in order to minimize residual static unbalance.
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6.1 - SELF-DIAGNOSTICS
In Setup, selecting diagnosis gives:
6 - SET UP
DISPLAY TEST
- All the LEDs and the displays should light up simultaneously.
- On the right-hand display the current position of the wheel is indicated
with a number from 0 to 255. Turning the wheel in the direction of
rotation, the number displayed should increase. Turning the wheel in the
opposite direction of rotation the number displayed should decrease.
With one full turn of the wheel the number zero should appear only once.
- Control parameter
- Checking parameter for technical service
- Checking parameter for technical service
- Displays values of rim DISTANCE sensor
- Displays values of DIAMETER sensor
END OF AUTODIAGNOSTICS
CANCEL AUTODIAGNOSTICS IN ANY PHASE.
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6.2 - SELF-CALIBRATION
For machine self-calibration proceed as follows:
- Fit a medium-sized wheel with steel rim on the shaft. Example: 6” x 14” (± 1”)
- Preset the exact dimensions of the wheel mounted.
CAUTION!! Presetting of incorrect dimensions would mean that the machine is not correctly calibrated,
therefore all subsequent measurements will be incorrect until a new self-calibration is performed
with the correct dimensions!
- Perform a manual spin under normal conditions
- Add a sample weight on the outside in any angular position.
Sample weight: 60 g. (2.00 .oz) for car
300 g. (10.0 .oz) for truck
- Perform a manual spin under normal conditions
- Shift the sample weight from the outside to the inside keeping the same
angular position.
- Perform a manual spin under normal conditions
- Shift the sample weight to the 12 o’clock position.
END OF SELF-CALIBRATION
CANCELS SELF-CALIBRATION IN ANY PHASE.
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6.3 - AUTOMATIC GAUGES CALIBRATION
6.3.1 - RIM DISTANCE GAUGE
- Leave the distance gauge in rest position and press
- Bring the gauge in contact with the fl ange surface and press
CORRECT CALIBRATION
- Return the gauge to rest position
- The wheel balancer is ready for operation.
10 11
(fi g. 10)
(fi g. 1 1)
N.B.: In the event of errors or faulty operation, the writing
rest position and repeat the calibration operation exactly as described above. If the error persists, contact the
Technical Service Department. In the event of incorrect input in the rim distance gauge calibration function,
press
to cancel it.
“r.P .”: appears on the display : shift the gauge to the
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6.3.2 - DIAMETER GAUGE
Place the round part of the gauge terminal on the fl ange as shown in the
fi gure and press
- The number 8 ± 3° appears on the left display .
40 mm
- Turn the gauge downward position the round part of the gauge
terminal at 40 mm (radial distance) from the fl ange as indicated
in the fi gure; alternatively use one of the cones provided as
shown in the images
- The number 289 ± 3° should appear on the left display.
- If not, press the
the number 289 appears on the left display.
- Return the gauge to rest position.
In the event of incorrectly accessing the diameter gauge calibration function, press
button holding the gauge still at 40 mm:
to cancel it.
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7 - ERRORS
During machine operation, various causes of faulty operation could occur. If detected by the microprocessor , they appear
on the display as follows:
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. 23 The wheel does not slow down 1. Remember to release the spinning device when the displays go off
Err. 24 Distance between the spokes smaller
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 fi 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.
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.
2. Check functioning of the phase generator.
3. 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.
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Err. 25 Distance between the spokes greater
than 120 degree
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.
7.1 - INCONSISTENT UNBALANCE READINGS
Sometimes after balancing a wheel and removing it from the balancing machine, it is found that, upon mounting it on
the machine again, the wheel is not balanced. This does not depend on incorrect indication of the machine, but only on
faulty mounting of the wheel on the adapter; i.e. in the two mountings, the wheel has assumed a different position with
respect to the balancing machine shaft centre line. If the wheel has been mounted on the adapter with screws, it could
be possible that the screws have not been correctly tightened, i.e. crosswise one by one, or else (as often occurs) holes
have been drilled on the wheel with too wide tolerances. Small errors, up to 10 grams (0.4 oz) are to be considered
normal in wheels locked by a cone; the error is normally greater for wheels fastened with screws or studs.
If, after balancing, the wheel is found to be still out-of-balance when refi tted on the vehicle, this could be due to the
unbalance of the car brake drum or very often due to the holes for the screws on the rim and drum sometimes drilled
with too wide tolerances. In such case a readjustment could be advisable using the balancing machine with the wheel
mounted.
8 - ROUTINE MAINTENANCE
Switch off the machine from the mains before carrying out any operation.
8.1 - TO REPLACE THE FUSES
Remove the weight holder shelf to gain access to the power supply board where the fuses are located (see Exploded
Drawings). If fuses require replacement, use ones of the same current rating.
If the fault persists, contact the Technical Service Department.
NONE OF THE OTHER MACHINE PARTS REQUIRE MAINTENANCE.
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