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CONTENTS

PAGE

-MANUFACTURING REVISION + UP-DATING

1- DESCRIPTION OF THE BALANCING MACHINE………………………………………………………….…4

1.1- GENERAL………………………………………………………………………………………………………….……….…...4

1.2- TECHNICAL DATA……………………………………………………………………………………………….…………….4

1.3- USER RECOMMENDTIONS…………………………………………………………………………………….………….….4

1.4- STANDARD SAFETY DEVICES…………………………………………………………………………….………………....4

2- INSTALLATION………………………………………….………………………………………….……………..5

2.1- INSTALLATION OF MACHINE………………… ……………………………………………….…….………..5

2.2-ELECTRICAL CONNECTION…………………………………………………………………….………………5

3—PANEL………………………………………………………………………………………………….…………. 5

3.1.PANEL OF DISPLAY…………………………………………………………………… …………….…………..5

3.2 CONTROL PANEL………………………………………………………………… ………………….…………..6

3.3. COMBINATED KEY OF FUNCTION TRANSFORMING………………………………………… .…………..6

4-WHEEL MOUNTING………………………………………………………………………………………………6

4.1THREAD BOLT OF MAISHAFT MOUNTING …………………………………………………...………………6

4.2.WHEEL INSTALLATION……………………………………………………………….…………………………6

5- METHOD OF INPUT RIM DATA ……………………………………………………….…….…………………7

5.1- AUTOMATIC MEASURING………………………………………………………………...…………………………7

5.2- INPUT RIM DATA MANUALLY……………………………………………………….………………………………8

5.2.1- METHOD OF INPUT STANDARD RIM DATA…………………...…………………………………………………8

5.2.2 - ALU-S BALANCING MODE DIMENSION INPUT METHOD………………………………………………9

6-CALIBRATION……………………………………………………………………………………………… ..……10

6.1- SELF CALIBRATION……………………………………………………………...……………………… ..……10

6.2 -AUTOMATIC GAUGES……………………………………………………………….…..……………… ..……11

6.3 –OPTIONAL WIDTH MEASURING GAUGE TO CALIBRATE …………………………………...………..11

6.4–SELF-DIAGNOSTICS(check position sensor and indicator light ) ………………………………… …..………12

7-WHEEL BALANCING….………………………………………………………………………………….………12

7.1-NORMAL VEHICLE AND MEDIUM TRUCK WHEEL BALANCING………………………………………………….……….…12

7.2 RECALCULATING THE UNBALANCE DATA………………………………………………………………………………………13

7.3 EXACT UNBALANCE DATA…………………………………………………………………………………………………….……13

7.4 STATIC-ALU……………………………………………………………………………………………………………………………13

7.5 SPECIAL ALU- “S” FUNCTION……………….…..………….……………………………………………… ..……14

7.6 UNBALANCING DISASSEMBLE ………………………………………………………………….…….………………… ..……15

7.7 INPUT RIM VALUE…………………………….……………………………………………………………………………… ..……15

7.8 DISASSEMBLE THE UNBALANCING VALUE……….……………………………………….………….………………… ..……15

7.9 STATIC BALANCING MODE……….………………………………………………..………..……………..……….……… ..……15

7.10 ALU-S BALANCING MODE……….………………………………………….……………..……………………………… ..……15

8-OPTIMIZATION OF UNBALANCE……………… …………………………………….…..………………………………….……15

9-ERRORS ………………… ……....………………………………………………………..………….…………...……………………16 10-ROUTINE MAINTENANCE ….………………………………………………………………………..……………………..…..…17

10.1 ADJUSTMENT OF THE DRIVING BELT TENSION……….…………….…….……………………………………...…….…..…17

10.2 TO REPLACE THE FUSES……………………………………………………………….…….………….………………….…..…17

11- SPECIAL MAINTENANCE…………………………………………………….…...….………..………………………………..…17

11.1 TO CHANGE SUPPLY VOLTAGE………………………………………………………………….…….……………………..…17

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11.2 TO CHECK THE DISTANCE GAUGE……………………………………………………….….……………………….……..…17

11.3 TO CHECK THE POSITION SENSOR…………………………………………………………….…………..…………….…..…18

11.4 ASSEMBLY OF THE PIEZO MEASURERS……………………………………………………..…………………..………….…18

11.5 SETUP MACHINE PARAMETERS………………………………………..…………………….…………………………………19

12- WIRING DIAGRAM OF WHOLE BALANCER……………………………………………………………………………………20

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1- DESCRIPTION OF THE BALANCING MACHINE

1-1-GENERAL

The F8 wheel balancer is an automatic digital balancing machine designed for balancing for balancing wheels

weighing up to 65kg.The distance and diameter dimensions are acquired automatically by moving the measuring

gauge.

The computer automatically handles the “s” function (for alloy wheels with correction only on inside).

The manual push button operated calibration system allows a range of adjustment which is also sufficient to cover

Wheels differing from ordinary ones (motorcycles and racing cars).

Special functions ALU are also available to cater for wheels of unusual shape and there is provision for optional

Functions on the balancing machine (see specific sections).

1.2-TECHNICAL DATA

Max wheel weight………………………………………………… .65kg

Max power consumption……………………………………………180-300 W

Standard power supply……………………………………………...110V/220V, 50/60HZ single phase

Balancing accuracy………………………………………………….1 g

Balancing speed……………………………………………………..200 r. p. m.

Rim width……………………………………………………………from 10”to24” or from 265 to 615 mm

Rim width……………………………………………………………from 1.5”to2.0” or from 40 to 150 mm

Cycle time……………………………………………………………7s

Sound pressure level in cycle………………………………………..<70 dB(A)

Net weight with guard(and cone adapter)……………………………93 kg

Operating temperature range……………………………………………..from 0 to 50℃

1.3-RECOMMENDATIONS

-Before starting to use the balancing machine, carefully read the operating instruction manual.

-Keep the manual in a safe place for future reference.

-Refrain from removing or modifying machine parts which would impair correct operation. please get

in touch with the Technical Service when needing repairs

-Do not use 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 adapter.

-The machine operator should not wear clothes with flapping edges; make sure that unauthorized

personnel do not approach the machine during the work cycle.

-Avoid placing counterweights or other bodies in the base which could impair the correct operation of

the balancing machine.

-The balancing machine should not be used for purposes other than those described in the instruction

manual.

1.4-STANDARD SAFETY DEVICES

-Stop push button for stopping wheel under emergency conditions.

-The safety guard of high impact strength plastic, is with shape and size designed to prevent risk of

counterweights from flying out in any direction except towards the floor.

A micro switch prevents starting the machine if the guard is not lowered and it stops the wheel

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Whenever the guard is raised.

2 INSTALLATION

2.1 INSTALLATION OF MACHINE

2.1.1 After opening up the package, please check whether there have any lose or shatter. If have, we appreciate

your contacting with the supplier.

2.1.2 Balancer should be installed no to the stably flat place; cause of the instability brings error.

2.1.3You should leave 500mm for convenient operation

2.1.4. Fix the bolt into the hole for installation on pedestal, in order to fasten the machine.

2.2. ELECTRICAL CONNECTION

2.2.1 Installing an additional automatic switch of air according to power supply which responses the technical

data.

2.2.2 Choosing the protective earth plug. Caution: the wire in green and yellow is earth one. You must make the

wire earthed. If not, you may damage the machine.

3 PANEL (Fig. 1)

3.1.PANEL OF DISPLAY

1. Digital left display , AMOUNT OF UNBALANCE inside or “DISTANCE” dimension

2. Digital right display, AMOUNT OF UNBALANCE outside or “DIAMETER” dimension

3.Indicator of inside, POSITION OF UNBALANCE

4.Indicator of outside, POSITION OF UNBALANCE

5. Digital indicator, amount of “STATIC” unbalance or “WIDTH” dimension

6. Indicator, correction mode “ALU” selected

7. Indicator, dimensions in mm

3.2 CONTROL PANEL

For cycle start push button

For emergency stop push button

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. For reading unbalance<5g (0.3oz)

For correct aluminum rim mode selection

For recalculation unbalance data:/self-calibration

For manual inputting DISTANCE

For manual inputting WIDTH

For manual inputting DIAMETER

For optimization of unbalance

Selection of dimensions in inch / mm

Push button, self-diagnostics and self-calibration

For rapid switching between DYNAMIC/STATIC(selection of optional functions)

N.B.: Only use the fingers to press the push buttons. Never use the pincer for the counterweights or other pointed

objects

3.3. COMBINATED KEY OF FUNCTION TRANSFORMING

3.3.1PRESETTINGS MEMORIZED ALSO WHEN MACHINE IS SWITCHED OFF:

+ + -Transforming key of grams/ounces

+ -Start with hood closed

3.3.2.PRESETTINGS LOSTED WHEN MACHINE IS SWITCHED OFF:

[inch/mm] -The measurement of width mm/inch

Caution :-In inches each time machine is switched on.

4 WHEEL MOUNTING

4.1THREAD BOLT OF MAISHAFT MOUNTING

You should clear up the anti-rust oil which on the shaft by alcohol of petrol, avoiding any effect to the stability. You

would find a main shaft among the other spare parts Put the shaft into the installing hole and fasten the long-bolt by

spanner.(You must fasten it tightly , or you will effect the stability with error.)

4.2.WHEEL INSTALLATION

a↑ a↓

STOP C

STOP

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4.2.1 Choosing a suitable adapter and installing to the main shaft .Rim smaller than 15”,you should put the smaller side

of the adapter outside, and after putting the adapter, you should put on the wheel ; rim bigger than 16”, you should put

the bigger side of adapter outside, and after putting the wheel , you should put the adapter.

4.2.2.After above installation, you should fix the wheel by quick nut.

5 METHOD OF INPUT RIM DATA

5.1- AUTOMATIC MEASURING

Two types of measurements are provided:

- SANDARD WHEELS also valid for correction mode “ALU1” &“ALU2”&steel rim.

-“S”, very useful for wheels with correction just on the inside.

5.1.1-STANDARD WHEELS

- Move the gauge into measuring position as described in Fig. 2.During gauge movement, the displays go out

showing that the gauge is not steady

Fig. 2

-Keep the gauge stationary in position for about 2sec.

-Indication of memorization is given by the display as shown in [---] [5.7] [---]

-Move the gauge back to position 0 (The automatically measured values appear on the display.

N B.: Width automatic measuring is as optional accessory, when there is no width automatic measuring, should input the

rim width manually , input manually need use the standard caliper gauge.(Fig.3)

Fig.3

5.1.1.1-OPTIONAL WIDTH AUTOMATIC MEASURING

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Fig. 4

-Move the gauge into measuring position as described in Fig.4.During gauge movement, the displays go out showing

that the gauge is not steady.

-Keep the gauge stationary in position for about 2sec.

-Indication of memorization is given by the display as shown in [---] [---] [---]

-Move the gauge back to position 0 (The automatically measured values appear on the display.

N B.: If show [---] [---] [---] all long, at least the measuring gauge two sides has one to no replacement.

5.1.1.2- ALU-S BALANCING MODE AUTOMATIC INPUT DIMENSION

-Move the gauge into measuring position as described in Fig.5.

Fig 5

after measuring F1, move the gauge into FE position, keep the gauge stationary in position for about 2sec.

-Indication of memorization is given by the display as shown in[ ] [AL] [S]

-Move the gauge back to position 0 (The measured dimension “ALU” values appear on the display.

5.2- INPUT RIM DATA MANUALLY

Fig. 6

5.2.1- METHOD OF INPUT STANDARD RIM DATA

5.2.1.1– INPUT RIM DISTANCE a

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Measure the distance from the inner edge of the rim to the balancer with the ranging rod on the balancer. .(Fig.6)

Adjust the value with (a↑,a↓), input the measured distance value.（+/- 0.5cm per time）

5.2.1.2- INPUT RIM WIDTH b

Measure the rim width with caliper. (Fig.6)

Adjust the value with (b↑,b↓) ,input the measured width value.

Below is the meaning of value:

0.2 equal to 1/4"

0.5 equal to 1/2"

0.7 equal to 3/4"

5.2.1.3 - INPUT RIM DIAMETER d

Check the conditioned diameter as indicated on the wheel . Adjust the value with (d↑,d↓) ,input the measured diameter

value. (-12/13cm or 0.5")

5.2.1.4- IMPUT DISTANCE OF THE EXTRA POLE

The length of extra pole is 6cm (Fig.7) , and it can measure the special rim.(Fig.7A)

Fig. 7 Fig. 7A

Put the extra pole onto the gauge. Measure the distance from the inner edge of the rim to the balancer with the ranging

rod on the balancer. You get the distance value “a”.

Put the gauge back and adjust the value with (a↑,a↓) ,input the distance value (a+6)

5.2.2 - ALU-S BALANCING MODE DIMENSION INPUT METHOD

Balancing special shape rim (S balancing mode)

- This function is adapt to special rim, and use ALU2 mode not to ensure enough balancing degree.

- Press the key [ALU] to choose “S” balancing mode(corresponding indicator light shines),input rim data according to

the following Fig.8.

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Fig. 8

a) To modify aI value , press the key “ a↑,a↓” to modify.

b) To modify aE value , press the key “ b↑,b↓” to modify.

c) To modify dI value , press the key “ d↑,d↓” to modify.

d) To modify dE value , press the key [FINE] and simultaneity press the key“ d↑,d↓” to modify.

N B.: Windows default value dE=0.8I, when dI is changed , dE is re-back to the windows default value.

The system calculates the center of gravity of weight counter and the distance of wheel balancer , it will consider the

weight counter as 14mm automatically .

6 CALIBRATION

6.1. – SELF CALIBRATION

CAUTION!! At the beginning of installation or using , you’d better to do self-calibration, in order to ensure the

measuring value.

Turn on the machine firstly.

Install a medium-sized wheel (13“-15”)，after inputting the rim data, you should press the key [D] as while as [D].

You cannot put down you hand , until all the indicators start to blink. Put down the hood , and press [START] to start

the rotating. Put a “100g”(3.5oz) weight counter to rim outside. Put down the hood again, when the main shaft stops,

the calibration value also end. The value will be memorized no matter the machine turn on or not. From then on , you

could operate the balancer as you need.

-Press until the positioning LED’s pass from

flashing to being steady.

-Add a weight of 100 grams

(3.5 oz) on the outside in any angular

position.

-MACHINE CALIBRATED

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-Remove the master weight from the wheel and balance the wheel according to the previously described procedures.

The values measured by the machine with this self-calibration cycle are automatically memorized in a special

Memory which retains them even when the machine is switched off. Hence when the machine is switched on

Again, it is ready to operate correctly. However, self –calibration can be carried out whenever required or when

there is some doubt whether the machine is operating correctly

6.2 AUTOMATIC GAUGES

6.2.1 DISTANCE GAUGE

Press STOP + FINE

- Move the distance gauge

to position “0” and keeping

it well held, Press

-Move the distance gauge

to position “15” and press

-Move the gauge back to

reset position.

-The balancing machine is

ready to work.

N.B.: In the events of errors or abnormal conditions, the wording “Cal”, “P.O” reappears. Return the gauge to

Position 0 and repeat the calibration operation taking care to perform it as described above. If the error

Persists, contact the Technical Service Department . If incorrect entry has been made during the distance

Gauge calibration function, press STOP to delete it.

6.2.2 DIAMETER GAUGE

diameter value currently preset.

_Preset the value with which the

machine is to be calibrated

(10 to18”)

-Bring the gauge tip into

the measuring position

and keeping it

well held , press

-Move the gauge to rest

position.

-The balancing machine

is ready to work.

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In the event of incorrect entry during the diameter gauge calibration function, press STOP to delete it.

6.3 –OPTIONAL WIDTH MEASURING GAUGE TO CALIBRATE

Fig. 9

Press the key [STOP]+ [b↑]or [b↓]

Show [CAL] [235] -Move the gauge to the Fig.9 position and keep pressing the key [ALU]

Show [CAL] [235] -Move the gauge to the special position. and keep pressing the key [ALU]

Show [000] [000] -The gauge is re-back the original position , the CALIBRATION is finished .

In the event of incorrect entry during the diameter gauge calibration function, press STOP to delete it.

6.4–SELF-DIAGNOSTICS(check position sensor and indicator light )

Press push button D , the indicator light flashes one by one from left to right , the system carries out a test for correct

operation of the displays and the screen show [ ] [POS] [ ] , then check the position sensor. Gradually move the

wheel, “ALU1” the indicator light should start flashing. Switching from reset, the wording “0” should appear on right

display .

Show [ ] [POS] [ 0 ] , rotation per one circle , the wording “0” should appear on right display. When reverse

direction of rotation , the “ALU1” the indicator light flashes.

Press push button ALU

-A number appears on left display which varies when the distance gauge is moved and represents a reference

for the calibration of the potentiometer used in automatic distance measurement(Only for expert personnel).

-It is possible to switch to the distance gauge calibration function by pressing push buttons

STOP + OPT both at the same time.

Press push button ALU

-A number appears on left display which varies when the diameter gauge is moved and represents a reference

for the calibration of the potentiometer used in automatic diameter measurement(Only for expert personnel).

-It is possible to switch to the diameter gauge calibration function by pressing push buttons

STOP + OPT both at the same time.

Press push button ALU

-A number appears on left display which varies when the width gauge is moved and represents a reference

for the calibration of the potentiometer used in automatic width measurement(Only for expert personnel).

-It is possible to switch to the width gauge calibration function by pressing push buttons

STOP + b↑ or b↓ both at the same time.

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N.B.: Press push button C any time to terminate the auto-diagnostics function.

7 WHEEL BALANCING

7.1-NORMAL VEHICLE AND MEDIUM TRUCK WHEEL BALANCING

Switch on the machine and install the wheel, then input the data.

---Put down the hood, then press START. After the wheel rotating, you would check the inner wheel unbalance

value on left display; the exterior value on right display. You can choose the weight counters as the exact value.

----Rotate the wheel slowly by hand, when all the indicator of exterior wheel blink, which means the top point of

exterior rim is an unbalance point. You should put on the exact weight counters. (Fig.10)

(Fig. 10)Find the unbalance point on

exterior wheel and put on the exact weight counters

---Rotate the wheel by hand again slowly, until all the left unbalance indicators blink. It means the inner rim is

unbalance point. You should put on exact weight counters. (Fig.11)

---Press shows the rim data.

(Fig. 11) find the inner balance point and put on the exact weight.

Put down the hood , and rotating the wheel, replay all above operation. Until both side show 0 0.

Normally, replay for three times is allowed.

7.2 RECALCULATING THE UNBALANCE DATA

-Preset the new dimensions following the procedures described above.

-Without repeating the spin, press

-The new recalculated unbalance values are displayed.

7.3 EXACT UNBALANCE DATA

Normally, the standard weight counter weights from 5g, increases by 5g so as to remain most 4g unbalance value.

That leads to the remain unbalance and trembling computer will choose a suitable counter to put on. Adjust the

unbalance according to the position of the counter.

Press FINE, you would check the exact value (0-4g)

C

C

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That is ,when the value less than 5g, indicating 0.If you want to check the exact unbalance value, you need to

press FINE.

7.4 STATIC-ALU

The available functions show where to place the corrective weights in positions differing from the normal ones.

-Press ο to select the required function.

- The amounts of unbalance are displayed correct on the basis of the selected correction position.

Fig.12

Standard – Balancing of steel or light alloy rims by

Applying clip –on weights on the rim edges.

STATIC- STATIC correction is required for motorcycle

Fig.13 Wheels or when it is not possible to place the

Counterweights on both sides of the rim.

N.B.: The unbalance position can be read indicator

3 or4 – it does not matter which. For unbalance

values exceeding 30 grams/1, 1oz , the wording

[OPT] appears on display “1”; it is possible to

pass directly on to the second unbalance

optimization spin [see relative section]

Fig.14

“1”. –Balancing of light alloy rims with hidden

application of adhesive weights. Position of the

external weight is on the adapter plane.

Fig.15

“2”-Combined balancing: clip-on weight on inside;

hidden application of the adhesive weight on the

outside (Mercedes)

(Position of the external weight as in “1”)

ALU F

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7.5 SPECIAL ALU- “S” FUNCTION

The function is used for unusually shaped alloy rims where “ALU1” and“ALU2” is not able to guarantee

sufficient accuracy. See the Fig.14 for the position of counterweight.

- Select the S option (relative LED light up) through the [ALU] push button., press “S” balancing mode to input

the rim value, operate same as car tyre .

- N.B.: Make the Counterweights position is correct according to the following program when it is at ALU-S .

Press [STOP]+ [ALU], show [20] [---] [30], draw the measuring gauge to get to the position where put the

counterweights , show [20] [---] [30](inside) or [20] [-] [30](outside) .Keep the measuring gauge hold still, put

the counterweights at the position as the fig. 13.

Press [STOP] to cancel this function.

Fig.16

7.6 UNBALANCING DISASSEMBLE

Disassemble is used in balancing or the outside of ALU-S mode, and use in counterweights hidden at the back of

the rim.

7.7 INPUT RIM VALUE

Input any size , press [D]+ [OPT].

Press [↑]+ [↓], setup the value (3-12).

Press [D]+ [OPT]to confirm .

7.8 DISASSEMBLE THE UNBALANCING VALUE

Choose balancing or ALU-S balancing mode .

Press [START], the wheel finishes once.

Turn the tyre when show the balancing value, make any rim at the 12 o’clock position, press [D]+ [OPT].

7.9 STATIC BALANCING MODE

Show “SPL” at the left screen .

Circumgyrate tyre slowly until to the middle screen show unbalancing value.

Adhesive counterweights on 12 o’clock position inside the rim .

7.10 ALU-S BALANCING MODE

Show “SPL”in the middle screen .

Show the unbalancing value at the right screen inside the rim. Adhesive counterweights on 12 o’clock position

when the indicator light blink. Circumgyrate tyre slowly until to the right screen show the first unbalancing value.

Adhesive counterweights on 12 o’clock position inside the rim , Circumgyrate tyre slowly until to the right

screen show the second unbalancing value. Adhesive counterweights on 12 o’clock position inside rim to balance

the wheel.

N.B.: Press [FINE], may see the balancing precision is 1g, which can go back to normal unbalancing value show.

Press [FINE] or [OPT].

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8 OPTIMIZATION OF UNBALANCE

-This function serves to reduce the amount of weight to be added to the wheel to balance it.

-It is advisable for static unbalance exceeding 30 grams.

-In many cases an improvement of the residual eccentricity of the tyre can be achieved.

-8.1.Entering the normal. Operation ,after the wheel finish once rotation .If the unbalance value more than

30g, the monitor shows “OPT”(When you do the dynamic balance, you would find the value in the middle

display; when you do the static balance, you would find the value in the left display )Press the button

“OPT”

(The monitor shows 180°which means the rim

and the tyre should rotate with each

other.180°should be marked in both

of the taper degree plate and the rim

hole. In order to re-demount the

wheel to the same situation,. Use

tyre changer to rotate the tyre on

the rim. Then set back to the rim.)

- Left display: value %

(symbol )of possible

reduction of the unbalance

referred to the current wheel

situation.

Middle display: current static

unbalance value in grams. It is the value

which can be reduced by a wheel-rim

rotation.

Turn the wheel until the

outer LED’s light up:

mark the tyre at top point

(12 o’clock position) .

Likewise mark

the rim in correspondence to the

position indicated by the inner LED’s.

Taking off the wheel ,and using the tyre

changer to make the mark of rim and

tyre superposition

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8.2.-un-rotating wheel(or static balance value less than 30g)

Press/OPT/,the left monitor shows “OPT”

Press /START/,rotating the wheel for the first time. After the rotation, which shows , as 8.1 operation.

9 ERRORS

When the machine is working , cause of the errors, the machine cannot work as well as usual.

Checked by computer, you can test the error as the meaning below:

ERROR MEANING

1 No rotation signal. Could be caused by faulty position transducer, or something

preventing.

2 During the measurement spins, wheel speed had dropped to below minimum 60 r.p.m

repeat the spin.

3 Error in mathematical calculations; most probably caused by too high wheel unbalance.

4 Rotation in opposite direction.

5 Guard open before start of the spin.

6 Fault in memory of the self-calibration values. Repeat the self-calibration.

7 Error during self-calibration. Could be due to the second spin made without adding

reference weight, or else by a break in the transducer cable.

8 Calibrating the diameter gauge, the diameter of the rim is too large(MAX:18”)

9 It has calculating error during the unbalancing disassemble.

10 ROUTINE MAINTENANCE

(Non specialized personnel)

Warning! Before carrying out any operation, disconnect the machine from the mains.

10.1 ADJUSTMENT OF THE DRIVING BELT TENSION

1. Open up the cover.

2. Slightly loosen the four screws fastening the motor. Then shift the motor until the belt is correctly tensioned.

3. Carefully retighten the 4 motor mounting screws. Check then when the belt is running, there is no side

deviation. Please the accessory shelf back in position.

10.2 TO REPLACE THE FUSES

Remove the weight holder shelf to gain access to the power supply PC board and the two fuses mounted on this

board. If the fuses require replacement, use ones of the same current rating.

If the failure persists, contact the Technical Service Department.

11 SPECIAL MAINTENANCE

(Only for specialized personnel )

Err. —S—

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11.1 TO CHANGE SUPPLY VOLTAGE

The machine can run on 110V or 230V.

To change the supply voltage, modify accordingly:

1) Change the motor. M

2) Change the power PC board fully or else modify the board as follows:

11.2 TO CHECK THE DISTANCE GAUGE

Fig. 17

When check the measuring gauge, (Shown in the figure).after taking the gauge out and the front of the gauge at

the same position as the surface of the shaft. Reading the value at 17.5cm.

When changing the gauge , you should check it seriously . After taking the gauge out and the front of the gauge

at the same position as the surface of the shaft. Reading the value at 17.5cm.

11.3—TO CHECK THE POSITION SENSOR

To check efficiency of the position sensor, proceed Fig. 18

as follow:

1. Make sure that none of the three photocells rub

against the phase disk and RESET tooth.

2. Using a voltmeter set to the Vdc. scale, test the

Following voltages (the machine should be switched

On but without rotation):

*between earth (ground) and red wire +5Vdc steady

*between earth (ground) and yellow wire (RESET)

+4.5 to 4.8Vdc when the RESET tooth is in

photocell FT2 and “0”Vdc when the RESET

tooth is outside the photocell.

*between earth and the green wire +4.5 to 4.8V and

between earth and the white wire (U/D), when the

machine shaft is turned very slowly, there should be

a variation in voltage going from “0”Vdc to4.8

Vdc.

CAUTION: when the position sensor requires replacement, remove just the PC board after backing-off the two

mounting screws; as the mounting bracket is not moved, repositioning is easier.

11.4 ASSEMBLY OF THE PIEZO MEASURERS

ASSEMBLY INSTRUCTIONS

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Sometime the error of the balance value and the position, cause of the pressure sensor.

To replace the pressure sensor as follows:

1. Remove the weight holder shelf.

2. Remove nuts 1 and 2 with relative cup

springs and washers.

3. Back-off nuts 3,4 then disassemble the

various parts.

4. Reassemble the various parts without

tightening the nuts 5 being careful to follow

correct sequence.

N.B: the piezo units should be mounted in

according with the position of the colored wires

shown in the drawing.

5. Keeping the spindle perfectly aligned,

tighten nut 4 with a spanner and nuts 3 by

Fig. 19

6. hand (plus half a turn with the spanner if necessary).

7. Refit the cup springs and nuts 1 and 2. Tighten these nuts fully in order to fully regain the elasticity of the cup

springs; then loosen them by half a turn. In this way the correct preloading of the piezo will be obtained (a troque

wrench can be used set at 400kg.cm).

8. Cover the piezo units with a generous layer of silicone,

(N.B. for correct operation, insulation of the piezo crystals should be greater than 50Mohm).

9. Refit the cover and weight holder shelf.

10. Repeat the self-calibration operation.

11.5 SETUP MACHINE PARAMETERS

Ensure the balancing precision when there is correct parameter value.

Press keys[D]+[C]as in self-calibration. When the LED’s stop flashing instead of performing the spin press the

following keys within 5seconds and in the correct sequence:

First [↑a] and [↓a] , the screen display disappears. Press [ALU], show the distance value.

Show [DF] and [85], right is “DF”, press [↑b] and [↓b] to modify the value “DF”. Press [↑a] to switch to

modify parameter “I”.

Show [1] and [-0], the current “I” value (%) appears on the right display while the wording “1” appears on the

left display. “-” denotes negative , “-1” denotes plug. Press [↑b] and [↓b] to modify. Press [↑a] to switch to the

value “S”.

Show [S] and [330], Press [↑b] and [↓b] to modify the value “S” ,and re-press [↑a] to switch to the function of

20

measuring width automatically

Show [AUT] and [OFT], press [↑b] and [↓b] to modify the value “S” .

To finish, press [↑a].

N.B: Press [FINE] key when setup parameter, which interrupts setup and resume the parameter to windows

default.

Windows default is as followings:

DF=85

I=0 Should renew or correct according to the Table Value pasted on back of the

machine

S=330

AUT=OFF

12 WIRING DIAGRAM OF WHOLE BALANCER