Hofmann Megaplan EASY User manual

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CONTENTS
I
1 - GENERAL 3
1.1 - GENERAL SAFETY REGULATIONS 3
1.1.1 - STANDARD SAFETY DEVICES 3
1.2 - FIELD OF APPLICATION 3
1.3 - MAIN PARTS 3
1.4 - OVERALL DIMENSIONS (OPTION WHEEL GUARD) 3
1.5 - TECHNICAL DATA 4
2 - HANDLING, HOISTING 4
3 - START - UP 5
3.1 - ELECTRICAL CONNECTION 5
3.2 - ADAPTER MOUNTING 5
3.3 - WHEEL MOUNTING 5
3.4 - WHEEL GUARD ASSEMBLY AND ADJUSTMENT (OPTION) 5
3.5 - WD/DC SPACER (OPTION) 5
4 - CONTROLS AND COMPONENTS 6
4.1 - CONTROL PANEL AND DISPLAY 6
4.2 - AUTOMATIC DISTANCE AND DIAMETER GAUGE 6
5 - INDICATION AND USE OF THE WHEEL BALANCER 7
5.1 - USE OF THE GAUGE INSTALLED IN THE MACHINE 7
5.2 - AUTO SELECT 7
5.2.1 - AUTO SELECT FOR STEEL RIMS 7
5.2.2 - AUTO SELECT FOR ALU M RIMS 8
5.2.3 - AUTO SELECT FOR ALU 3M RIMS 9
5.3 - OTHER ALU MODES 10
5.4 - RESULT OF MEASUREMENT 10
5.6 - DOUBLE OPERATOR PROGRAM 10
5.7 - SPLIT FUNCTION (HIDDEN ADHESIVE WEIGHTS) 11
5.8 - UNBALANCE OPTIMIZATION 12
5.9 - DYNAMIC, STATIC, AND MANUAL ALU MODES 13
5.10 - MINISTAT - AUTOMATIC MINIMIZATION OF STATIC UNBALANCE 13
6 - SET UP 14
6.1 - MENU 14
6.2 - SELF-DIAGNOSTICS 15
6.3 - CALIBRATION 15
6.4 - AUTOMATIC GAUGES CALIBRATION 16
6.4.1 - RIM DISTANCE GAUGE 16
6.4.2 - DIAMETER GAUGEE40 MM 16
6.4.3 - CHANGE OF GAUGE CHARACTERISTIC 17
7 - ERRORS 17
7.1 - INCONSISTENT UNBALANCE READINGS 18
8 - ROUTINE MAINTENANCE 18
8.1 - TO REPLACE THE FUSES 18
INSTRUCTIONS FOR USE

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MANDRINO
CALIBRO MANUALE
TESTINA E
DISPLAY
PROTEZIONE RUOTA
1
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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 specified in this manual.
- The machine should not be modified in any way except for those modifications explicitly carried out by the
manufacturer.
- Never remove the safety devices. Any work on the machine should only be carried out by specialist person-
nel.
- Carefully clean the coupling surfaces before performing any operation
- 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 flapping edges. Make sure that unauthorized per-
sonnel 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
- Stop key that stops the motor when an emergency arises.
- The wheel guard is not compulsory since the rotation speed is less than 100 min-1.
1.2 - FIELD OF APPLICATION
The machine is designed for balancing wheels of car, light commercial vehicles or motorcycles, weighing less than 75
Kg. It can be operated in the temperature range of 0° to + 45°C.
The following functions are provided: AUTO SELECT; ALUM; ALU 3M; SPLIT; Unbalance optimization; Double
operator; Self diagnostics; Self calibration.
1.3 - MAIN PARTS
WHEEL GUARD
CONTROL PANEL
AND DISPLAY
MANUAL GAUGE
SHAFT ASSEMBLY
1.4 - OVERALL DIMENSIONS (option wheel guard)

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FINE
ALU
MENUUSER
S
D
STOP
START
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1.5 - TECHNICAL DATA
Weight with guard (excluding adapter) ~ 84 Kg.
Single-phase power supply 115 / 230 V 50/60 Hz
Protection class IP 54
Max.power consumption 0,8 Kw
Balancing speed 100 min-1
Cycle time for average wheel 15 kg (5 3/4"x14") 4,7 seconds
Max.resolution of measurement 1 gram
Position resolution ± 1.4 °
Average noise < 70dB (A)
Rim-machine distance 0 - 255 mm
Rim width setting range 1.5” ÷ 20” or 40 ÷ 510 mm
Diameter setting range 10” ÷ 30” or 265 ÷ 765 mm
2 - HANDLING, HOISTING
TOLIFT THE MACHINE, LEVER ONLY ON THE BASE WHERE THE 3 SUPPORT POINTS ARE LOCATED.
NEVER, UNDER ANY CIRCUSTANCE, APPLY FORCE TO OTHER POINTS SUCH AS THE SPINDLE, HEAD, OR ACCESSORY SHELF.
Check that the balancing machine touches the floor at the three support points.•
It functions properly without having to fasten it to the floor with wheels weighing up to 35 kg; for heavier•
wheels, fasten it at the points indicated.

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DC WD Co n e
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3 - START - UP
3.1 - ELECTRICAL CONNECTION
THE ELECTRICAL CONNECTION MUST BE MADE BY SPECIALIZED PERSONNEL. CONNECTION TO THE SINGLE PHASE MAINS MUST
BE MADE BETWEEN PHASE AND NEUTRAL, AND NEVER, UNDERANY CIRCUMSTANCES, BETWEEN PHASE AND EARTH (GROUND).
EFFICIENT EARTHING (GROUNDING) IS ESSENTIAL FOR CORRECT MACHINE OPERATION. THE MANUFACTURER DECLINES
ALL RESPONSIBILITY AND WARRANTY IN THE EVENT OF INCORRECT CONNECTION.
Before connecting the machine to the mains through relative cable, check that the mains voltage matches the one
shown on the nameplate at the back of the balancing machine. Rating of the electrical connection should be on the
basis of the machine electrical power consumption (see nameplate).
The machine mains supply cable should be fitted with a plug conforming to current regulations.▪
It is recommended to provide the machine with its own electrical connection through a slow acting safety switch▪
rated at 4 A (230 V) or 8A (115 V).
When connection is made directly to the main control panel without using any plug, it is advisable to padlock the▪
main switch of the balancing machine in order to limit its use to authorized personnel only.
3.2 - ADAPTER MOUNTING
The wheel balancer is supplied complete with cone►
type adapter for fastening wheels with central bore.
The threaded terminal is fitted according to the dra
wing; it can be removed to fit optional adapters.
It can be removed to fit optional adapters.
3.3 - WHEEL MOUNTING
The wheels should be fastened with one of the numerous adapters manufactured by the manufacturer (see enclosed
brochures). Incorrect centering inevitably causes unbalance.
3.4 - WHEEL GUARD ASSEMBLY AND ADJUSTMENT (option)
a) Fasten the components to the base as illustrated in the specific exploded drawing.
b) N.b.: The tip of the microswitch must fit into the relative seat when the guard is closed.
Note: Do not lean on the guard during the wheel balancing cycle.
3.5 - WD/DC SPACER (option)
When balancing very wide wheels (9”), there might be not enough space to turn the distance gauge. To move 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.

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4 - CONTROLS AND COMPONENTS
4.1 - CONTROL PANEL AND DISPLAY
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, operator selection
9 Push button, selection of manual correction modes
10 Push button, SPLIT (unbalance spread)
11 Push button, FUNCTIONS MENU
12 Push button, menu selection confirmation
13 Push button, cycle start
14 Push button, emergency/home
15 Push button AUTO SELECT
16 Manual dimension setting buttons
17 Push button, unbalance optimization
ON▪LY USE THE FINGERS TO PRESS THE PUSH BUTTONS.
NEVER USE THE COUNTERWEIGHT PINCERS OR OTHER POINTED OBJECTS.▪
4.2 - AUTOMATIC DISTANCE AND DIAMETER GAUGE
Allows automatic measurement of the distance from the machine and the wheel diameter at the counterweight
application point. The same gauge can be used to position the counterweights correctly inside the wheel, using the
specific function that suggests the position memorised during measurement inside the rim.

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Pos B
Pos A
6
6a
6b
b
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5 - INDICATION AND USE OF THE WHEEL BALANCER
5.1 - USE OF THE GAUGE INSTALLED IN THE MACHINE
Push back the gauge to the resting position. The machine automatically has detected the mode for steel rims.
For clip-on weights use the gauge in the upper position A.
For adhesive weights use the gauge either in the upper
position A or the lower position B.
Note: Always use the round part of the striker plate.
5.2 - AUTO SELECT
The machine automatically detects the right balancing program for steel, ALU M, and ALU 3M rims.
5.2.1 - AUTO SELECT FOR STEEL RIMS
Pull out the gauge to the edge of the rim. Keep it
there until to display the symbol indicated.
Confirmation that dimensions are acquired
Set the width indicated on the rim, or measure it
with the calliper (standard accessory).
Perform a measuring spin, turn the wheel to the correct angles, fix the clip-on weights and perform a control spin.
To balance more tyres of the same type and dimensions, the machine automatically stores the data for the currently
mounted wheel.

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5.2.2 - AUTO SELECT FOR ALU M RIMS
Move the gauge further to the right until the unbalance value
is indicated.
Move the gauge further to the left until the unbalance
value is indicated.
Make a control spin.
To balance more tyres of the same type and dimensions the machine automatically stores the current wheel data.
To put in other dimensions or to change the balancing program press .
Pull out the gauge to the left plane, where
you want to fix an adhesive weight. Keep
the gauge there until to display the symbol indicated in
fig. 6a. Pull it further out to the right plane and wait for to
display the symbol indicated in the picture below.
The machine automatically has detected the ALU M
mode.
Push back the gauge to the resting position.
Make a measuring spin.
For the adhesive weight In the left position turn the wheel to the correct angle and simply fix the weight by hand at
the 12 o’ clock position or use the gauge for repositioning as described below.
For the adhesive weight In the right position turn the wheel to the correct angle.
Pull out the gauge for repositioning and re-adjust the angle.
For CHANGE OF GAUGE CHARACTERISTIC (see SETUP)

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5.2.3 - AUTO SELECT FOR ALU 3M RIMS
Pull out the gauge to the edge of the rim, where you want to fix the clip on weight.
Keep the gauge there until to display the symbol indicated in fig. 6a. Pull it further out to the right plane and wait for to
display the symbol indicated in fig. 8a.
Move the gauge further to the right until the unbalance value is indicated.
Move the gauge further to the left until the unbalance value is indicated.
Make a control spin
To balance more tyres of the same type and dimensions, the machine automatically stores the data for the current
mounted wheel.
To input other dimensions or change the balancing program, press .
The machine confirms with ALU 3M
Return the gauge to rest position
NOTE: In very rare cases the difference between the inner and the outer diameter is extremely little.
The machine will confirm with ALU M then. For these cases press for more than 3 seconds to switch
to the ALU 3M positions manually.
Make a measuring spin
For the clip on weight In the left position turn the wheel to the correct angle (see RESULT OF MEASUREMENT) and fix
the weight as usual by hand at the 12 o’ clock position.
For the adhesive weight In the right position turn the wheel to the correct angle.
Pull out the gauge for repositioning and re-adjust the angle.
For CHANGE OF GAUGE CHARACTERISTIC (see SETUP)

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5.4 - RESULT OF MEASUREMENT
After performing a balancing spin, the amounts of unbalance are shown on the digital readouts.
The LED ‘s, number 3 and 4, indicate the correct angular wheel position to mount the counterweights (12 o’clock posi-
tion). If the unbalance is less than the threshold selected, 0is displayed instead of the unbalance; with
it is possible to read the values below the threshold chosen gram by gram.
To enable automatic program and data acquisition for a new wheel to be balanced, press
5.5 - RECALCULATION OF THE UNBALANCE
Press after new setting of the measurement.
5.6 - DOUBLE OPERATOR PROGRAM
This program allows memorizing the dimensions of two types of wheels. Thus two operators can work simultaneously
on two differents cars using the same balancing machine. The system memorizes two programs with different preset
dimensions.
1 - Press for more than 3 seconds to select the operator (1 or 2). The current USER is displayed by briefly
pressing the button .
2 - Enter the dimensions (see AUTOSELECT)
3 - Press to carry out the balancing as usual and to automatically store the program to the currently selected
user.
Press for more than 3 seconds to select program 1 or 2 for subsequent balancing operations without setting the
dimensions again.
Inside correction Outside correction
5.3 - OTHER ALU MODES
Put in the wheel data as for steel rims described in AUTO SELECT FOR STEEL RIMS.
Make the measuring spin.
Press as many times as the LEDs light up for the desired correction method.
Fix the weights at the indicated positions.
Make a control spin.
To balance more tyres of the same type and dimensions the machine automatically stores the current wheel data.

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2
1
2
1
2
1
2
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5.7 - SPLIT FUNCTION (HIDDEN ADHESIVE WEIGHTS)
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 in ALU mode where the adhesive weight is applied on the outside. Input the wheel
dimensions and do a spin.
Turn the wheel to the outside unbalance correc▪
tion position as indicated by the machine
Position one spoke at 12 o'clock (e.g. 1) and▪
press
Following the rotation direction indicated on the▪
display, posi-tion spoke 2 at 12 o'clock and
press
Position the wheel as indicated by the LEDs.▪
The unbalance is indicated on the right-hand
display
Repeat the operation for the other spoke▪
To return to normal unbalance display, press any button.
NOTE: The distance between the spokes must be at least 18° and at most 120° (if not, the errors 24, 25
or 26 appear).Spokes with irregular or inconstant angles can be compensated.

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5.8 - UNBALANCE OPTIMIZATION
- This function serves to reduce the amount of weight to balance a wheel.
- It is suitable for static unbalance exceeding 30g.
- It improves also the residual eccentricity of the tyre.
This operation is required if no unbalance has been measured previously; other-
wise go to the next step
M▪ark with chalk a reference point on the adapter and rim
With the aid of a tyre changer, turn the rim on the tyre by 180°▪
Refit the wheel with the reference mark coinciding between rim and adapter▪
RH di▪splay: percentage reduction
LH display: actual static unbalance which can be reduced by matching▪
Mark the two positions of the rim and tyre, and turn the rim on the tyre until▪
the positions correspond in order to obtain the optimization results shown on
the display.
CANCEL OPTIMISATION IN ANY PHASE.
TYRE
POSITION
RIM POSITION
The LED besides the button lights when the static unbalance is more then 30 g

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5.9 - DYNAMIC, STATIC, AND MANUAL ALU MODES
From the measurement screen, press or button to select the type required. The 5-LED displays show
the position where to apply the weights. If a spin has already been performed, the processor automatically recalcula-
tes, for each change of mode, the amounts of unbalance according to the new calculation.
Button
DYNAMIC Balancing of steel or light metal rims with
application of clip-on weights on the rim edges.
STATIC The static mode is necessary for motorcycle
wheels or when it is not possible to place the
counterweights on both sides of the rim.
Button for manual ALU modes
Combined application: adhesive weight outside
and clip-on weight inside.
Combined balancing of alloy rims with application of
adhesive weights on the rim shoulders.
Combined application: adhesive weight inside
and clip-on weight outside.
Automatic ALU modes (see 5.2. AUTO SELECT)
ALU M Balancing of light metal rims with hidden application
of adhesive weights.
ALU 3M Combined application: clip-on weight inside and
hidden adhesive weight on outside (Mercedes).
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, resident in the machine, 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.
Initial unbalance
phase shift
Possible approximations
residual static residual static residual static
Choice with minimum
static residual
With conventional
wheel balancer
residual static
5.10 - MINISTAT - AUTOMATIC MINIMIZATION OF STATIC UNBALANCE

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6 - SET UP
6.1 - MENU
diameter
mm/inch
width
mm/inch p
start by
guard closing
approximates
1-5g 0.1-25oz
See SELF-DIAGNOSTICS
See CALIBRATION
g/oz
unbalance
unit
RETURN TO MEASUREMENT SCREEN
Calibration of automatic RIM DISTANCE gauge (see SETUP)
Calibration of automatic DIAMETER gauge (see SETUP)
*N.B. If such indications fail to appear, contact Technical Service.
see CHANGE OF GAUGE CHARACTERISTIC
acoustic signal
activation
on/off

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6.2 - SELF-DIAGNOSTICS
performs tests useful for maintenance staff.
6.3 - CALIBRATION
For machine self-calibration proceed as follows:
- Fit a wheel with steel rim on the shaft. Example: 6” x 15” (± 1”), best with less then 20 g unbalance.
- 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 spin under normal conditions.
- Add a 60 g sample weight (2.00 oz) on the outside in any position.
- Shift the sample weight from the outside to the inside keeping the same
position.
- Rotate the wheel so to have the sample weight at the 12 o’clock position.
END OF SELF-CALIBRATION
CANCEL CALIBRATION IN ANY PHASE.

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6.4 - AUTOMATIC GAUGES CALIBRATION
6.4.1 - RIM DISTANCE GAUGE
- Leave the distance gauge in rest position
and press
- Pull out the gauge up to the adapter flange
and press
CORRECT CALIBRATION
- Return the gauge to rest position
- The wheel balancer is ready for operation.
Plac▪e the round part of the gauge terminal on the flange as shown in the figure
and press
The number 26 ± 1° appears on the left display .▪
N.B.: In the event of errors or faulty operation, the writing “r.P.”:appears on the display : shift the
gauge to the 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.
6.4.2 - DIAMETER GAUGEE40 mm
Turn the gauge downward position the▪
round part of the gauge terminal at 40 mm
(radial distance) from the flange as indicated
in the figure; alternatively use one of the cones
provided as shown in the images
The nu▪mber 289 ± 3° should appear on the left display. The calibration is
already correct.
If not, press the▪button holding the gauge still at 40 mm: the number 289
appears on the left display.
Return the gauge to rest position.▪

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6.4.3 - CHANGE OF GAUGE CHARACTERISTIC
[P.Ph.] set to OFF:
ALUM and ALU3M adhesive weights can be applied by:
- applying the weights manually at 12 o’clock
- applying the weights positioning them on the clip and pulling out the distance gauge up to the correct axial position.
[P.Ph.] set to ON:
The ALUM and ALU3M adhesive weights can only be applied using the weight clip.
N.B.: Remember to always check the angular weight application position (LEDs all on).
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 turn on. 1. Check proper connection to the mains.
2. Check and if necessary replace the fuses on the power board.
3. Replace the computer board.
Err. 1 No rotation signal. 1. Check belt tautness.
2. Check functioning of the phase encoder and, in particular, the reset
signal.
3. Replace the phase encoder.
4. Replace the computer board.
Err. 2 Too low speed during measurement.
During the unbalance measurement
revolutions, the wheel speed has fallen to
below 42 rpm.
1. Check that a vehicle wheel has been mounted on the wheel
balancer.
2. Check belt tautness.
3. Check functioning of the phase encoder and, in particular, the reset
signal.
4. Replace the computer board.
Err. 3 Too high unbalance. 1. Check the wheel dimension setting.
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.
Err. 4 Rotation in opposite direction.
After pressing [START], the wheel
starts turning in the opposite direction
(anticlockwise).
1. Verify the connection of the UP/DOWN - RESET signals on the
phase encoder.
Err. 5 Guard open
The [START] pushbutton was pressed
without first closing the guard.
1. Reset the error.
2. Close the guard.
3. Verify the function of the protection Switch.
4. Press the [START] button.
Err. 7 /
Err. 8 /
Err. 9
NOVRAM parameter read error 1. Repeat machine calibration
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.
Err. 11 Too high speed error.
The average spinning speed is more than
240 rpm.
1. Check if there is any damage or dirt on the phase encoder disc.
2. Check functioning of the phase encoder and, in particular, the reset
signal.
3. Replace the computer board.
Err.14/
Err.15/
Err.16/
Err.17/
Err. 18/
Err. 19
Unbalance measurement error. 1. Check functioning of the phase encoder.
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.
Err.20 Wheel at standstill. The wheel is at a
standstill for more than one second after
START.
1. Check functioning of the phase generator.
2. Check the connections on the power board.
3. Replace the computer board.

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Err.21 Motor on for more than 15 seconds. 1. Check functioning of the phase encoder.
2. Check the connections on the power board.
3. Replace the computer board.
Err.22 Maximum number of spins possible for
the unbalance measurement has been
exceeded.
1. Check that a vehicle wheel has been mounted on the wheel
balancer.
2. Check belt tautness.
3. Check functioning of the phase encoder and, in particular, the reset
signal.
4. Replace the computer board.
Err. 24 Distance between the spokes smaller
than 18 degrees.
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.
Err. 25 Distance between the spokes bigger
than 120 degrees
1. The minimum distance between the spokes where to split the
unbalance must be smaller than 120 degrees
2. Repeat the SPLIT function reducing the distance between the
spokes.
Err. 26 First spoke too far from unbalance position 1. The minimum distance between the unbalance position and the
spoke must be less than 120 degrees.
2. Repeat the split function reducing the distance between the spokes.
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
Sometimes after balancing a wheel and removing it from the balancing machine, it is found that, 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 bigger for wheels fastened with screws.
If, after balancing, the wheel is found to be still out-of-balance when refitted on the vehicle, this could be due to unba-
lance 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 a balancing machine with the wheel mounted on the car.
8 - ROUTINE MAINTENANCE
Switch off the machine from the mains before carrying out any operation.
8.1 - TO REPLACE THE FUSES
Remove the weight shelf to gain access to the power supply board where the fuses are located (see exploded dra-
wings). 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.