Operating instructions I

Operating instructions
Index
I
1 - GENERAL
3
1.1 - GENERAL SAFETY REGULATIONS
3
1.2 - FIELD OF APPLICATION
3
1.3 - OVERALL DIMENSIONS
3
1.4 - TECHNICAL DATA
4
2 - HANDLING AND LIFTING
4
3 - STARTUP
5
3.1 - ANCHORING
5
3.2 - ELECTRICAL CONNECTION
5
3.3 - PNEUMATIC CONNECTION (MODEL P)
5
3.4 - EXTRA SAFETY DEVICES (MODEL P)
5
3.5 - ADAPTOR MOUNTING
5
3.6 - GUARD MOUNTING
8
3.7 - WD/DC SPACER (OPTIONAL)
8
4 - CONTROLS AND COMPONENTS
9
4.1 - WHEEL LOCKING
9
4.2 - PNEUMATIC LOCKING PEDAL (MODEL P)
9
4.3 - MEGASTICK - AUTOMATIC DISTANCE AND DIAMETER GAUGE
9
4.3.1 - DISTANCE GAUGE LOCKING
9
4.4 - AUTO SENSE - AUTOMATIC WIDTH GAUGE
9
4.5 - CLOCK CONTROL
9
4.6 - PRINTER (OPTIONAL)
9
4.7 - KEYBOARD
10
5 - INDICATION AND USE OF THE WHEEL BALANCER
11
5.1 - START SCREEN
11
5.2 - MENU ACCESS DIAGRAM
12
5.3 - AUTO SELECT
13
5.3.1 - AUTO SELECT FOR STEEL RIMS
13
5.3.2 - AUTOSELECT FOR ALUM/PAX RIMS
15
5.3.3 - AUTO SELECT FOR ALU 3M RIMS
16
5.4 - MEASUREMENT RESULTS
17
5.5 - USER CONTROL
18
5.6 - SPLIT CONTROL
19
5.7 - MINISTAT - AUTOMATIC MINIMISATION OF STATIC UNBALANCE
20
5.8 - AVS - ANTI VIBRATION SYSTEM (OPTION)
20
5.8.1 - CEC - CENTRING ERROR CHECK
22
5.8.2 - AVS FOR STEEL RIMS
22
5.8.3 - AVS FOR ALLOY RIMS
23
6 - MENU
24
6.1 - LANGUAGE
24
6.2 - UNBALANCE OPTIMISATION
24
6.3 - WHEEL BALANCING MACHINE CALIBRATION
24
6.4 - STATISTICS
25
7 - USER SETUP
26
7.1 - SPINNING WITH GUARD CLOSED
26
7.2 - ACOUSTIC SIGNAL
26
7.3 - DYNAMIC + STATIC DISPLAY
26
7.4 - WHEEL LOCKING ENABLE
26
7.5 - GAUGE LOCKING ENABLE
26
7.6 - UNBALANCE DISPLAY THRESHOLD
26
7.7 - UNBALANCE DISPLAY PITCH - MINISTAT
26
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7.8 - SCREEN SAVER
26
7.9 - PRESETTING THE CUSTOMER AND USER NAME
26
7.10 - SETTING THE CLOCK
27
7.11 - RUN OUT MEASUREMENT
27
7.11.1 - ENABLING RUN OUT MEASUREMENT
27
7.11.2 - ENABLING RUN OUT DIAGNOSIS
27
7.11.3 - MINIMUM WHEEL RUN OUT
27
7.11.4 - MINIMUM RIM RUN OUT
27
7.11.5 - MINIMUM WHEEL RUN OUT CORRECTION
27
7.11.6 - DEFAULT RUN OUT VALUES
27
7.12 - PRINTER ENABLING (OPTIONAL)
27
8 - SERVICE SETUP
27
9 - ERRORS
28
10 - ROUTINE MAINTENANCE
30
10.1 - SCHEDULED MAINTENANCE
30
10.2 - REPLACING THE PROTECTION FUSES
30
1 - General
1.1 - General safety regulations
- The wheel balancing machine should only be used by duly authorised 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 modified in any way except for those modifications made explicitly by the
manufacturer
- Do not remove the safety devices. Any work on the machine must be carried out by duly authorize
specialist personnel.- Avoid using strong jets of compressed air for cleaning.
- Use alcohol to clean plastic panels or shelves (AVOID LIQUIDS CONTAINING SOLVENTS).
- Before starting the balancing cycle, make sure that the wheel is securely locked on the flange.
- The machine operator must not wear clothes with flapping parts; do not allow unauthorised personnel to
approach the wheel balancer during the work cycle.
- Avoid placing objects in the base which could impair the correct operation of the wheel balancing machine.
- For TFT monitors, see the specific instructions attached.
1.1.1 - Standard safety devices
- STOP push button for stopping the wheel under emergency conditions.
- The plastic safety guard of high impact strength is with shape and size designed to avoid risk of
counterweights from flying out in any direction except towards the floor.
- A microswitch prevents starting the machine if the guard is not lowered and stops the motor whenever the
guard is raised.
1.2 - Field of application
The wheel balancing machine is designed for balancing car or motorcycle wheels weighing less than 75 kg.
It can be operated within a temperature range of 0° to +45°C. It can measure the geometric radial run-out of the
wheels (optional).
It can print a balancing certificate (option).
1.3 - Overall dimensions
1
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1.4 - Technical data
Single phase power supply ............................................................... 115 - 230 V 50-60 Hz
Protection class ................................................................................ IP 54
Max absorbed power ........................................................................ 1,1 Kw
Monitor ............................................................................................. TFT 15"
Balancing speed ............................................................................... 100 min-1
Cycle time for average wheel (14 Kg) .............................................. 6 seconds
Balancing accuracy ........................................................................... 0,5 grams
Position resolution............................................................................. ± 1.4 °
Average noise ................................................................................... < 70 dB(A)
Rim / machine distance..................................................................... 0 - 285 mm (max settable value : 400 mm)
Rim width setting range ................................................................... 1.5" ÷ 20" or 40 ÷ 510 mm
Settable diameter .............................................................................. 10" ÷ 30" or 265 ÷ 765 mm
Total wheel diameter within guard..................................................... 1067 mm (42")
Total wheel width within guard .......................................................... 530 mm
Min/max. compressed air pressure ................................................... 7 ÷ 10 Kg/cm2
.......................................................................................................... ~ 0.7 ÷ 1 Mpa;
.......................................................................................................... ~ 7 ÷ 10 BAR;
.......................................................................................................... ~ 100 ÷ 145 PSI.
2 - Handling and lifting
NOTE: DO NOT LIFT THE WHEEL BALANCER USING OTHER GRIPS.
2
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3
3 - Startup
3.1 - Anchoring
The machine can operate on any flat non resilient floor.
Make sure that the machine rests solely on the support points provided (Fig. 3).
If possible, it is advisable to secure the system to the ground using the specific feet if the machine is continually used
with wheels weighing over 35 kg.
3.2 - Electrical connection
The machine is supplied with a single- phase cable plus earth (any extension cables must have a cross-section of
no less than 2.5 mm2). The supply voltage (and mains frequency) is given on the machine nameplate. It cannot be
changed. Connection to the mains must always be made by expert personnel. The machine should not be started up
without proper earthing.
Make the connection to the mains using a slow-acting safety switch calibrated to 16A (230 V).
3.3 - Pneumatic connection (Model P)
For operation of the spindle with pneumatic locking (constant thrust air spring) connect the balancing to the
compressed air main. The connection fitting is located at the back of the machine.
At least 7 Kg/cm2 (~ 0.7 MPa; ~ 7 BAR; ~ 100 PSI) pressure is needed for correct operation of the release device.
3.4 - Extra safety devices (Model P)
- Wheel always locked even when there is pressure failure during the balancing cycle.
Always actuate the unlocking control pedal with the machine stationary in order to avoid stress and
abnormal wear on the adapter.
3.4.1 - Manual chuck release
If the electric power fails, operate as described below to release a mounted wheel:
- Remove the cover on the rear of the base
- Manually turn the controls 1 and 2 located on the solenoid valve
- Remove the released wheel
- Turn the controls back to the original position
3.5 - Adaptor mounting
The wheel balancer is supplied complete with cone type adapter for fastening wheels with central bore. Other
optional adaptors can be mounted once the terminal part is removed (also see enclosed brochures).
NOTE: CAREFULLY CLEAN THE COUPLING SURFACES BEFORE PERFORMING ANY OPERATION.
DISASSEMBLY OF THE THREADED END PIECE
4
A
B
a) Remove threaded end piece A after backing off screw B.
b) Mount the new adapter.
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SE2-Mounting
0m
m
b
a
1-2
mm
c
d
e
f
g
SE2_ 0140
SE2-Dismounting
36
a
b
c
d
0°
Cone
e
- Quando possibile, centrare le ruote con cono dall'interno (vedi disegno).
- Evitare di usare il manicotto RL con cerchi di ferro.
- Whenever possible, centre the wheels with the cone from the inside (see the drawing).
- Avoid using the RL sleeve with metal rims.
- Lorsque c’est possible, centrer les roues avec le cône de l’intérieur (voir dessin).
- Eviter d’utiliser le manchon RL avec les jantes en fer.
- Wenn möglich, die Räder mit Konus von Innen heraus zentrieren (siehe Zeichnung).
- Bei Eisenfelgen die Verwendung der Muffe RL vermeiden.
- Siempre que sea posible, centrar las ruedas con cono desde dentro (véase dibujo).
- Evitar usar el manguito RL con llantas de hierro.
SE2_ 0140
3.6 - Guard mounting
a) Fasten the components to the base as illustrated in the specific exploded drawing.
b) The position of the closed wheel guard is fixed.
c) Check that the microswitch tip is fitted into the seat on the ring when the guard is closed.
d) Properly adjust the angular position of control ring.
3.7 - WD/DC spacer (optional)
To mount the wheel away from the machine side, fit the WD spacer on the flange 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.
5
DC
Spring
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WD
Cone
4 - Controls and components
4.1 - Wheel locking
The wheel is automatically locked when reaching the correct angular position for weight application on the inside and
outside, turning it slowly by hand. To unlock the wheel, turn it hard to move it from the correct correction position.
By pressing the
assembly.
button it is possible to lock/release the spindle in any position to facilitate the wheel
4.2 - Pneumatic locking pedal (Model P)
6
It allows the fixing/release of the wheel on the flange.
It must not be used during the machine cycle
and/or when different flanges are mounted from
that with standard cones. The pedal has two fixed
positions: upper position for unlocking; lower
position for locking the wheel.
4.3 - MEGASTICK - 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. The same gauge also enables AUTO SELECT. With this
function the machine automatically detects the right balancing program for steel ALUM/PAX and ALU
3M rims.
4.3.1 - Distance gauge locking
The distance gauge is automatically locked when the MEGASTICK has reached the correct application
distance (7.5 GAUGE LOCKING ENABLE). To release the gauge, lower it to below 10” diameter.
4.4 - AUTO SENSE - Automatic width gauge
Width gauging is through a SONAR device which measures the width of the wheel without mechanical
contact, simply by closing the guard and each time a valid measurement has been made with the
MEGASTICK.
4.5 - Clock control
The wheel balancing machine is provided with a clock having a back-up of about one month with the
machine switched off. If the machine remains unused for a long period, check date and time settings when
restarting (7.10 SETTING THE CLOCK).
4.6 - Printer (optional)
It allows printing useful information relating to the vehicle, the residual unbalance and the run out of the tyre.
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4.7 - Keyboard
FUNCTION KEYS: they directly select the function on screen
7
Selecting
special
functions
NOTE:
Confirm
Starts the
measuring
cycle
Stops machine
cycle
- Press the buttons only with your fingers: never use the counterweight pincers or other
pointed objects.
- When the beep signal is enabled (7.2 ACOUSTIC SIGNAL), pressing of any push button is
accompanied by a beep.
- The TFT monitor is NOT a TOUCH SCREEN type.
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5 - Indication and use of the wheel balancer
The monitor displays a great deal of information and suggests various alternative operating methods. This involves
various “screens”.
5.1 - Start screen
Buttons enabled
: main functions screen (5.2 MENU ACCESS DIAGRAM)
: static correction
: AUTO SELECT, automatic detection of the correct balancing program
: balancing spin (5.4 MEASUREMENT RESULTS)
5.1.1 - Screen saver
If the machine remains on the initial screen for a certain period of time (as settable on-screen) without being used, the
system is automatically switched to a screen-saver. Pressing any key, wheel movement or distance + diameter gauge
movement automatically switches from the screen-saver menu to the initial screen. Automatic start-up operated by
the protection system is not available from the screen-saver for safety reasons.
NOTE: Name of the wheel balancing machine owner. Screen-saver timing settable (7.8 SCREEN SAVER).
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5.2 - Menu access diagram
NOTE : - the symbol
" indicates the presence of a further menu
"
- To return to the previous menu, press button
- to return to the initial screen, press button
PASSWORD :
+
+
RESERVED FOR EXPERT PERSONNEL
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+
5.3 - AUTO SELECT
The machine automatically detects the correct balancing program for steel/ALU M/PAX and ALU 3M rims.
Indicator of light
truck function
enabled
Indicator of
AUTO SENSE
5.3.1 - AUTO SELECT for steel rims
The screen is displayed by moving the MEGASTICK distance + diameter gauge.
The figure shows the correct gauge movement.
DO NOT TWIST THE DEVICE.
8
Move the MEGASTICK gauge tip in contact with the rim.
Hold it in this position until a “beep” is heard.
8a
Return the MEGASTICK gauge to rest position. The machine has automatically detected the steel rim mode.
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AUTO SENSE - AUTOMATIC WIDTH MEASUREMENT
Indicator of light
truck function
enabled
Indicator of WIDTH
SONAR function enabled
Lower the guard slowly, after performing automatic distance+diameter measurement . If the guard is lowered too
quickly, an error message is displayed.
Press
and lower the wheel guard again, but more slowly.
To improve the dimensional calibration of large wheels, such as off-road vehicles, trucks or wheels protruding far out
from the rim, press
to change the tyre projection (1", 1,5", 2").
Perform a measurement spin, turn the wheel to the correct angles, secure the clamp weights and perform a control
spin. To balance other tyres of the same type and dimensions, the machine automatically stores the data for the
currently mounted wheel.
Other correction modes:
After performing automatic measurement of the left plane, it is possible to place the correction weights also for the
and
following by pressing buttons
.
Balancing of light alloy rims with application of adhesive weights on the shoulders of
the rim.
Combined balancing: adhesive weight on the outside, clip-on weight inside.
Combined balancing: clip-on weight outside and adhesive weight inside.
Pushing
from MAIN SCREEN (5.1 START SCREEN)
STATIC correction is required with motorcycle wheels or when it is not possible to
place counterweights on the two rim sides.
The other enabled buttons are:
Returns to the initial screen
Balancing run
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5.3.2 - AUTO SELECT for ALUM/PAX rims
Slide out the MEGASTICK to the left side, at the point where an adhesive weight is to be fitted. Hold the MEGASTICK
in this position until a “beep” is heard.
Slide it out further towards the right side and wait for a second “beep”.
The machine has automatically detected the ALUM mode.
Return the MEGASTICK to rest position.
9
Perform a measurement spin.
For the adhesive weight in the left position, turn the wheel to the correct angle, secure the weight on the MEGASTICK
with your hand with the adhesive facing upwards and slide out the MEGASTICK until a “beep” is heard. Push the
MEGASTICK upwards until the weight adheres to the wheel.
10
Return the MEGASTICK to the rest position and proceed for the right position in the same way.
Note:
- A mobile coloured arrow [
] indicates the approach of the weight towards the correction position.
- Perform a control spin.
To balance other tyres of the same type and dimensions, the machine automatically stores the data for the currently
mounted wheel.
To input other dimensions or change the balancing program, press
To return to the initial screen press
.
(5.3 AUTO SELECT).
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5.3.3 - AUTO SELECT for ALU 3M rims
11
Slide out the MEGASTICK to the edge of the rim, at the point where the clip-on weight is to be fitted.
Hold the MEGASTICK in this position until a “beep” is heard.
Slide the MEGASTICK further out towards the right side, at the point where an adhesive weight is to be fitted. Wait
for the second “beep”.
The machine has automatically detected the ALU 3M mode.
Note:
In very rare cases, the difference between inside and outside diameter is extremely little. The machine will
then confirm with ALUM. In these cases, press
to manually move to the ALU 3M positions.
Return the MEGASTICK to rest position.
Perform a measurement spin.
For the clip-on weight in the left position, turn the wheel to the correct angle and secure the weight manually. To
properly place the adhesive weight, turn the wheel in the correct angle, secure the weight on the MEGASTICK with
your hand, with the adhesive side facing upwards and slide the MEGASTICK until a “beep” is heard.
Push the MEGASTICK upwards until the weight adheres to the wheel.
Perform a control spin.
To balance other tyres of the same type and dimensions, the machine automatically stores the data for the currently
mounted wheel. To input other dimensions or change the balancing program, press
To return to the initial screen, press
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.
(5.3 AUTO SELECT).
5.4 - Measurement results
After performing a balancing run, the unbalance values are displayed as well as arrows useful for positioning the
correction weight at the application point.
After positioning and locking the wheel, apply the weight vertically at the top.
When the beep signal is enabled (7.2 ACOUSTIC SIGNAL), the acquisition of the correction position is confirmed by
a “beep” alarm.If the unbalance is less than the threshold value set (7.6 UNBALANCE THRESHOLD DISPLAY), “0K” is
displayed instead of the unbalance value to indicate that on that side, the wheel is in tolerance; the residual
unbalance can be displayed by pressing the button
, with an accuracy of 0.5 g (0.1 oz.)
The following buttons are enabled:
Display of residual unbalance
Selection of the correction mode (STATIC/TWO PLANES). When the mode is changed, the unbalance
values are recalculated automatically on the basis of the previous run. It is possible to enable the concurrent display of the dynamic+static unbalance by the special function in Setup (7.3 DYNAMIC + STATIC
DISPLAY)
Prints the balancing certificate (option)
AVS Anti vibration system (option)
N.B.:
1. The symbol above the key turns red if the first harmonic run out exceeds the limit defined
in the setup parameters (7.11.3 MINIMUM WHEEL RUNOUT).
2. When this push button is held down for more than 1.5 seconds, run out measurement is
temporarily disabled (activation with 7.11.2 ENABLING RUNOUT DIAGNOSIS). To re-enable run
out measurement, press push button [4] again for more than 1.5 seconds. Every time the
machine is switched on, the status of run out measurement reflects the settings in 7.11 RUN
OUT MEASUREMENT.
USER control
Enables the unbalance split functions (only in ALUM, ALU 3M and STATIC mode)
AUTO SELECT
Selecting special functions
Balancing run.
NOTE: If the machine remains on this screen without being used for more than 10 minutes, the screen automatically
returns to the screen-saver if enabled (7.8 SCREEN SAVER).
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5.5 - USER control
Can be selected by pressing
in the menu.
The wheel balancing machine can be used simultaneously by 4 different users who can memorize their work
condition and call it when needed. The names of the users can be stored (7.9 PRESETTING THE CUSTOMER AND
USER NAME).
Selects the user to be recalled or programmed.
Recalls the wheel data and the correction modes data to the selected user
Stores the current wheel data and the correction modes to the selected user
Remember to properly set the dimensions as already described in paragraph DIMENSIONS.
N.B.:
The dimensions memorized as USER are lost when the machine is switched off.
The USER control can be used for all the correction modes.
The current USER is always displayed in the Measurements and Dimensions screens.
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5.6 - SPLIT control
The SPLIT function is only possible for static unbalance, ALU M or the right side of ALU 3M. It is used to hide any
adhesive unbalance correction weights behind the rim spokes.
To split the unbalance measured in two different positions, proceed as follows:
1. Turn the wheel to the 12 o'clock correction position of the right side
2.
Select a spoke close to the 12 o’clock position, bring it into the 12 o’clock position and press
3.
Turn the wheel in the rotation direction indicated on the unbalance display. Bring the second spoke to the 12
o’clock position and press
.
.
- Turn in the direction of rotation.
- Turn in the direction opposite to the rotation.
4.
5.
At this point, two indications for the 2 choosen spokes appear on the screen
Turn the wheel to the indicated 12 o’clock positions and correct with the values displayed.
For any error, follow the information provided on the screen.
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5.7 - MINISTAT - Automatic minimisation of static unbalance
Initial unbalance
sx
dx
g
g
phase shift
50°
Possible approximations
sx
sx
dx
g
residual static
g
4g
sx
dx
g
residual static
g
3g
With conventional
wheel balancer
sx
dx
g
residual static
g
1g
dx
g
residual static
Choice with minimum
static residual
g
6g
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 be applied by approximating them in an
“intelligent” way according to their position in order to
minimise residual static unbalance.
5.8 - AVS - Anti vibration system (option)
With AVS the operator can detect the geometric irregularities of tire and rim and compensate and match them with
each other in the best possible way, suitable for workshop use.
The megaspin 900 is measuring the radial run of the complete wheel with a sonar sensor. The radial run out of the
rim is measured manually with a roller.
All peak measurements are computed into a curve with just 1 minimum and 1 maximum. This curve is called the 1.
Harmonic. It is used also for tire matching programs of the tire industry.
For the 1. Harmonic the following threshold values are preset in the software:
- for the complete wheel (tire + rim) : 1,2 mm
- for the rim : 0,3 mm
- for the possible correction : 0,8 mm.
If all values are above these limits a significant improvement of the wheel run out is possible. If one of them is equal
or below, any further procedure is disabled, not to waste the time of the operator (7.11 RUNOUT MEASUREMENT).
The values are based on the experience with our industrial machines. In case there are other values more suitable for
very specific tire/rim combinations, they also can be adjusted by the operator (7.11 RUN OUT MEASUREMENT).
AVS can be enabled/disabled in the menu
When enabled the symbol:
will show up on the monitor.
When enabled in the menu, additionally AVS can be deactivated/reactivated by pressing
for 2 seconds.
To use AVS be sure, that the wheel is perfectly centered.
Specifically for alloy rims it is recommended to use the cone together with a stud plate (option).
1. Move the sonar sensor to the middle of the wheel. To achieve the best results choose a position, which has little
vertical grooves in the profile.
2. Make a balancing spin as usual.
If the run out of the wheel is more than 1,2 mm the run out symbol will turn to red:
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When enabled in the menu automatically a diagnosis screen will appear on the monitor:
The following buttons are enabled:
to show the measured run out curve
to return to the unbalance display screen.
When the automatic diagnosis screen is disabled the run out curve can be shown by pressing
the run out is equal or less then 1,2 mm this button can be used to show the curve:
. Also when
Blue Graph: shows the individual run out peaks
Red Graph: shows the first Harmonic
The following buttons are enabled:
to continue with rim run out measurement
to print the value of the 1. Harmonic of the wheel
to go to the diagnosis screen as shown above
to return to the unbalance display screen
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5.8.1 - CEC - Centring error check
Eventually the reason for an exceeding run out of the wheel is due to a bad centering of the wheel on the balancer
When the run out symbol as described above turns to red, also CEC has been activated.
Check the centering of the wheel. Specifically for alloy rims, additionally to the cones, stud plates should be used
(option).
5.8.2 - AVS for steel rims
Continue the above described procedure with measuring the run out of the rim:
1. Introduce the roller into the end of the MEGASTICK
2. Move the MEGASTICK in contact with the inside edge of the rim, as shown in the following figure:
14
3. Press
to keep the horizontal position of the roller fixed.
4. Slowly turn the wheel 360 degrees by hand, keeping a constant pressure on the roller, until the following
screen is displayed:
The screen shows the measured run outs of the wheel (RIM + TYRE) and the RIM.
By subtracting the RIM from RIM + TYRE the AVS software is calculated the run out for the TYRE itself.
In the figure it also shows the threshold values as stated above.
1.
2.
3.
4.
5.
Mark the tire and the rim as indicated in the lower part of the screen
Match the 2 marks on a tire changer
Remount the wheel to the balancer
Make a control spin for the run out of the wheel
Balance the wheel as usual.
If the run out measurements are equal or lower then any of the 3 preselected run out values as described above in
(5.8 AVS) the following screen will appear:
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In this case it makes no sense to further continue with AVS.
5.8.3 - AVS for alloy rims
With alloy rims it is necessary to measure the run out of the rim on the inside:
15
Start AVS by measuring the run out of the wheel with the sonar sensor as described for steel rims.
When you are in ALUM or ALU 3M mode, for the further procedure you will be automatically guided on the screen.
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6 - Menu
6.1 - Language
This function allows selection of the language to be used for displaying descriptive and diagnostic messages
regarding machine operation.
6.2 - Unbalance optimisation
The symbol
is displayed automatically for static unbalance bigger than 30 grams (1.1 oz).The program allows
total wheel unbalance to be reduced by compensating, when possible, tyre and rim unbalance values. It requires two
runs, rotating the tyre on the rim on the second run.
Having performed a run, press:
+
6.3 - Wheel balancing machine calibration
and follow the on-screen instructions.
For machine calibration, proceed as follows:
- Fit a wheel with steel rim of average dimensions, such as 6”x14” (± 1”).
- Preset the wheel dimensions with GREAT CARE.
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!!
CAUTION: calibration must only be performed by specialist personnel and if absolutely necessary.
Follow the on-screen instructions.
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6.4 - Statistics
DAILY no. of runs:
indicates the number of runs performed as from switching the wheel balancing machine. This parameter is
automatically reset after switching the machine off.
TOTAL no. of runs:
Indicates the number of runs performed since the last counter reset. This parameter remains memorized even when
the machine is switched off.
The following buttons are enabled:
: resets the daily number of runs
: resets the total number of runs. Requires correct setting of a password.
: to return to the previous screen (MENU)
: to return to the measurement screen.
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7 - USER setup
7.1 - Spinning with guard closed
When “ON” is selected, automatic run start is enabled when the guard is closed.
7.2 - Acoustic signal
When “ON” is selected, the acoustic signal (beep) is enabled in the following cases:
- when any push button is pressed;
- when dimensions are acquired in automatic mode;
- when the correct angular position for weight application is reached in the measurement screen;
- when the correct angular position for weight application is reached in the position repeater screen.
7.3 - Dynamic + static display
It is possible to select simultaneous display of the dynamic and static unbalance values. In this case a small window
appears in the centre of the screen showing the static unbalance as indicated below:
7.4 - Wheel locking enable
Enables/disables wheel locking in the correction position (4.1 WHEEL LOCKING). The possible options are:
OFF: Disabled
ON: Enabled
Enabled ALUM: Enables wheel locking in position for the ALUM correction mode only.
Wheel locking by means of the button
is always enabled.
7.5 - Gauge locking enable
Enables/disables distance gauge locking when the correct distance has been reached to apply the adhesive weight to
correct the unbalance (4.3.1 DISTANCE GAUGE LOCKING). To release the gauge, lower it to below 10” diameter.
7.6 - Unbalance threshold display
This is the unbalance threshold below which the wording “OK” appears on the screen at the end of the run instead of
the unbalance value.
7.7 - Unbalance display pitch - MINISTAT
This represents the unbalance display pitch and varies in relation to the unit of measurement selected. The
selection “5g” (1/4oz) enables display of the correction values on both sides such as to bring the static unbalance
to 0 (theoretical). It is recommended to preset this function as standard on the machine as it improves the
balancing quality. The computer makes a complex calculation which allows minimising the residual static
unbalance by using fixed counterweights in steps of 5 grams (1/4 oz).
7.8 - Screen saver
If enabled, the machine automatically switches to the screen saver when unused for 10 minutes.
7.9 - Presetting the customer and user name
The machine can be customized by presetting:
a) The name appearing on the initial screen (screen-saver).
b) The name of 4 different machine users (USER NAME).
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7.10 - Setting the clock
Used for correct date and time setting. Follow the instructions on the screen.
7.11 - RUN OUT measurement
Enables the display of a menu where the following parameters can be set:
7.11.1 - Enabling run out measurement
Enables/disables the radial run out measurement.
7.11.2 - Enabling run out diagnosis
Enables/disables the run out diagnosis.
7.11.3 - Minimum wheel run out
This is the first harmonic limit beyond a detailed analysis of the rim run out is advisable. Recommended limit = 1.2
mm.
7.11.4 - Minimum rim run out
Represents the first harmonic limit of the rim below which it is not considered appropriate to match the tyre on the rim.
Recommended limit: 0.3 mm.
7.11.5 - Minimum wheel run out correction
Represents the minimum correction limit, below which it is not considered appropriate to match the tyre on the rim.
Recommended limit: 0.8 mm
7.11.6 - Default run out values
Sets the limits recommended at items 7.11.3 - 7.11.4 - 7.11.5.
7.12 - Printer enabling (optional)
Enables/disables the printer and the relevant print options.
NOTE: If the RS232C serial output and the printer are enabled at the same time, both will malfunction.
8 - Service Setup
To access “Service Setup”, a password must be entered.
Any incorrect operation within these functions could impair the operation of the wheel balancing machine.
Unauthorized use will cause cancellation of the machine warranty.
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9 - Errors
ERRORS
CAUSE
CHECKS
Black
The wheel balancer does not switch on.
1. Check proper connection to the mains.
2. Check and if necessary replace the fuses on the power board.
3. Verify monitor function.
4. Replace the CPU board
Err. 1
No rotation signal.
1. Check belt tautness.
2. Check functioning of the phase generator and, in particular, the reset signal.
3. Replace the phase generator.
4. Replace the CPU board.
Err. 2
Speed too low during detection.
During the unbalance measurement
revolutions, the wheel speed has fallen
to below 42 rpm.
1. Make sure that a vehicle wheel is 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 CPU board.
Err. 3
Unbalance too high.
1. Check the wheel dimension setting.
2. Check detection unit connections.
3. Perform machine calibration.
4. Mount a wheel with more or less known unbalance (less than 100 grams)
and verify the response of the machine.
5. Replace the CPU board.
Err. 4
Rotation in opposite direction.After
pressing [START], the wheel begins
to rotate in the opposite direction
(anticlockwise).
1. Verify the connection of the UP/DOWN – RESET signals on the phase
generator.
Err. 5
Guard open.The [START] pushbutton
was pressed without first closing the
guard.
1. Reset the error by pressing pushbutton [7]=End.
2. Close the guard.
3. Verify the function of the protection Switch.
4. Press the [START] button.
Err. 7 /
Err. 8
NOVRAM parameter read error
1. Repeat machine calibration
2. Shut down the machine.
3. Wait for at least ~ 1 min.
4. Re-start the machine and verify correct operation.
5. Replace the CPU board.
Err. 9
NOVRAM parameter write error
Replace the CPU board.
Err. 11
Speed too high error.During unbalance
measurement rotation, wheel speed is
more than 100 rpm.
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 CPU board.
Err. 12
Unbalance measuring cycle error.
1. Check functioning of the phase generator.
2. Verify correct motor operation.
3. Check belt tautness.
4. Replace the CPU board.
Err.13/
Err.14/
Err.15/
Err.16/
Err.17/
Err.18
Unbalance measurement error.
1. Check functioning of the phase generator.
2. Check detection unit connections.
3. Check the machine earthing connection.
4. Mount a wheel with more or less known unbalance (less than 100
grammes) and verify the response of the machine.
5. Replace the CPU board.
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Err. 20
The wheel comes to a halt before
completing positioning correctly.
1. Make sure that the wheel to be balanced is at least 10” in diameter.
2. Verify the correct setting of wheel dimensions on screen.
3. Check belt tautness.
4. For wheels less than 12” in diameter wheels: disable the eccentricity
measurement procedure.
Err. 30
Clock error
Replace the CPU board.
Err.40/
Err.41/
Err.42/
Err.43
Eccentricity graph plotting procedure
error.
Perform a new eccentricity measurement.
Err.45/
Err.46/
Err.47/
Err.48
Eccentricity graph value display readout
error.
Perform a new eccentricity measurement.
Err.50/
Err.51/
Err.52/
Err.53
Eccentricity graph current value cursor
plotting procedure error.
Perform a new eccentricity measurement.
Err.54
Sonar readout error. Sonar value
readout impossible.
1. Properly place the eccentricity measurement sonar, before performing the
measurement.
2. Check eccentricity sonar connections.
3. Check the power supplies on the power card.
4. Replace the eccentricity measurement sonar.
5. Make sure that the wheel does not halt before completing at least 4/5
revolutions after the first braking impulse
6. Check belt tautness.
7. Replace the CPU board.
Err.55
Sonar readout error.Sonar values are
insufficient for correct measurement of
eccentricity.
1. Position the eccentricity measurement sonar correctly before performing
the measurement.
2. Make sure that the wheel does not halt before completing at least 4/5
revolutions after the first braking impulse.
3. Check belt tautness.4. Mount a wheel of medium dimensions (14”x5 ¾”)
and perform an eccentricity measurement . If in these conditions error 55 no
longer occurs, this means that the wheel inertia causing the problem is such
that the wheel stops before having acquired the minimum number of values
necessary for reliable eccentricity measurement.
Err. 58
Side and radial sonar readout error.
Side and radial sonar value readout
impossible.
1. Check err. 54
2. Check err. 56
Err. 59
Side and radial sonar readout error.The
values measured by the side and radial
sonar are insufficient for a correct side
and radial eccentricity measurement.
1. Check err. 55
2. Check err. 57
Err.65
Printer timeout.
1. Check that a printer is present.
2. Check the code of the processor card.
3. Check the printer <-> processor card connection.
4. Run the printer test function.
Err.66
Printer buffer error
1. Reset the printer.
2. Repeat the print function.
Err. 70
ADC readout error
1. Check the proper connection of the distance and diameter gauges (CN5/
CN4).
2. Switch off the machine, wait about 30 seconds and then, switch on again.
3. Replace the CPU board
Err. 80
Assenza del segnale di reset encoder
relativo al calibro distanza
1. Verificare posizionamento scheda encoder calibro distanza
N.B.: The phase generator is also known as optoelectronic or encoder.
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10 - Routine maintenance
10.1 - Scheduled maintenance
Before performing any action on the machine, isolate the electrical power supply.
10.2 - Replacing the protection fuses
Remove the weight holder shelf to gain access to the power supply board where the 4 fuses are located (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.
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