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Hofmann Megaplan EASY, Инструкция по эксплуатации

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I 0667          

-

 12

GB

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°

 

▪

Re

fi

 t 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

Содержание EASY

Страница 1: ...F 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 MINIMIZATIO...

Страница 2: ...I 0667 2 GB ...

Страница 3: ...cle 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 aris...

Страница 4: ...age 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 TO LIFT 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 ...

Страница 5: ...nel 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 o...

Страница 6: ...NCTIONS 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...

Страница 7: ... 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 ...

Страница 8: ...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...

Страница 9: ... 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 measu...

Страница 10: ... 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 Pres...

Страница 11: ... 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...

Страница 12: ... 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 resul...

Страница 13: ...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 wh...

Страница 14: ...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 ...

Страница 15: ...rrect 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 ...

Страница 16: ...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 ind...

Страница 17: ...g 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...

Страница 18: ...er 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 bee...

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