Hofmann Megaplan M420 Use And Maintenance Manual Download Page 14 | Manualshive

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ENGLISH

Use and maintenance manual

6. Use of the wheel balancer

6.1 STANDARD BALANCING (clip-on counterweights)

6.1.1 Wheel dimensions setting

Using the special grip, move the end of gauge against the rim as shown in the figure:

While the gauge is moving the following appears:

Hold the gauge in position for at least 2 seconds.

If the acoustic signal is enabled (

MENU - ACOUSTIC SIGNAL

), the acquisition of the dimensions is accompanied

by a “beep”.

Measurement stored:

Use of the wheel balancer

Set the distance and diameter gauge to the rest position.

The balancing machine automatically interprets the presence of a rim with clip-on weight correction:

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Summary of Contents for M420

Page 1: ... HENNDORF AUSTRIA Hauptstraße 67 Tel 43 6214 646612 Fax 43 6214 646622 EMail HM mail hofmann megaplan com The Manufacturer declines all liability for any damage to people or property caused by incorrect use of this product Subject to change without prior notice ...

Page 2: ...ruzioni originali Translation of the original instructions Traduction de la notice originale Übersetzung der Originalanweisungen Traducción de las instrucciones originales Tradução das instruções originais ...

Page 3: ... WHEEL BALANCER 12 6 1 STANDARD BALANCING CLIP ON COUNTERWEIGHTS 12 6 1 1 Wheel dimensions setting 12 6 1 1 1 IWA 13 6 1 2 Result of the measurement and weight application 14 6 2 BALANCING WITH ADHESIVE WEIGHTS ALU 15 6 2 1 Wheel dimensions setting 15 6 2 2 Result of the measurement and weight application 16 6 3 BALANCING WITH A MIX OF ADHESIVE AND CLIP ON WEIGHTS STATIC BALANCING 17 6 4 STATIC UN...

Page 4: ...26 7 6 1 Laser spotter brightness 28 8 DIAGNOSTICS 29 8 1 INCONSISTENT UNBALANCE READINGS 29 9 MAINTENANCE 31 9 1 GENERAL 31 9 1 1 Introductory notes 31 9 1 2 Safety rules 31 9 1 3 Replacing fuses 32 9 1 4 Cleaning the screen 32 10 DISPOSAL 32 10 1 DISPOSING OF THE BALANCER 32 10 2 DISPOSING OF ELECTRONICS COMPONENTS 32 11 SPARE PARTS 33 11 1 IDENTIFICATION AND ORDERING METHOD 33 12 ATTACHED DOCUM...

Page 5: ...onstitutes the only reference to resolve any interpretation controver sies related to the translation into the European Community languages This publication forms an integral part of the machine and must therefore be kept for future reference until final dismantling and scrapping of the machine 1 2 PURPOSE OF THE MANUAL This manual and the installation manual contains the instructions required to ...

Page 6: ...part of the manual and must be kept together with it 1 5 COLLABORATION WITH USERS The manufacturer will be pleased to provide its customers with any further information they may require and will consider proposals for improving this manual in order to more fully satisfy the requirements it was written for In case of transfer of ownership of the machine which must always be accompanied by the use a...

Page 7: ...ac tory carriage paid If a Manufacturer s repairman or a person authorised by the same is required to work at the user s facilities the relative travel expenses and board and lodging shall be charged to the user The free supply of parts under warranty is always subject to the faulty part being inspected by the manufacturer or a person authorised by the same The warranty is not extended following r...

Page 8: ...k tyres on the wheel balancer Thanks to the new and exclusive VDD Virtual Direct Drive system reliable unbalance measurements can be made in a short time almost half the time of the cycle used with respect to other balancers in this range 2 1 TECHNICAL SPECIFICATIONS The following data refers to the balancer in its standard configuration Single phase power supply 115 230 V 50 60 Hz Protection clas...

Page 9: ...7 ENGLISH Use and maintenance manual Machine description COLLAR SE LOCK NUT BP PEDAL SPOTTER LASER RIM INTERIOR LIGHT LA SONAR option option ...

Page 10: ...y out the following checks 1 Check that the balancing machine touches the floor at the three support points 2 Make sure that all the parts of the balancer are correctly connected and fixed 3 Make sure that the parameters voltage and frequency of the mains power supply are compatible with those indicated on the rating plate of the balancer 4 Make sure the power cable is correctly connected 5 Make s...

Page 11: ...tion of the release device 9 In the pneumatic version the pedal allows fastening releasing the wheel on the adapter using the collar 10 At this point you can read the tyre measurements and perform balancing 11 To perform the spin lower the splash guard when fitted and if necessary and available press the START button 12 The wheel is automatically locked when reaching the correct angular position f...

Page 12: ...ights Standard dynamic balancing using adhesive weights or a mix of adhesive and clip on weights diameter width inside diameter outside diameter outside plane distance Correction plane identification outside plane distance inside plane distance inside plane distance inside plane distance inside diameter outside diameter ...

Page 13: ...rection 6 Push button unbalance reading below the threshold 7 Push button FUNCTIONS MENU 8 Push button menu selection confirmation 9 Push button cycle start 10 Push button emergency home 11 Manual dimension setting buttons 12 Push button SPLIT hidden weight 13 Push button Weightless Press the buttons with your fingers Never use the counterweight grippers or other pointed objects If the acoustic si...

Page 14: ... figure While the gauge is moving the following appears Hold the gauge in position for at least 2 seconds If the acoustic signal is enabled MENU ACOUSTIC SIGNAL the acquisition of the dimensions is accompanied by a beep Measurement stored Use of the wheel balancer Set the distance and diameter gauge to the rest position The balancing machine automatically interprets the presence of a rim with clip...

Page 15: ...TYRE L T LIGHT TRUCK 6 1 1 1 IWA Enabling the IWA function after the end of the automatic distance and diameter measurement the wheel balan cer suggests the most likely width value for the dimensions just acquired If necessary change the width value by pressing the buttons otherwise proceed with normal balancing IWA function does not work with any spacers and adapters mounted on the flange If the ...

Page 16: ...e correction position has been reached 2 If the LED 3 blinks 3 OPB 3 The symbol is shown on the display 3 4 on the side corresponding to the active correction plane 4 Manually apply the number of weights shown on the display on the rim at 12 o clock using clip on weights If the out of balance is less than the chosen threshold value appears instead of the out of balance value to indicate on that pa...

Page 17: ...re the counterweight is to be applied When the gauge is pulled out SPOTTER OPTIONS the spotter projects a laser reference inside the rim at 6 o clock The light point indicates the left hand side of the position where the counterweight is to be applied When the dimensions have been acquired the laser reference point emitted by the spotter flashes fast accompa nied by a beep if the acoustic signal i...

Page 18: ...active correction plane 4 The spotter projects a laser indication inside the rim 5 Apply the number of weights shown on the display on the side corresponding to the active plane The weight is to be applied according to the following convention The adhesive weights must always be applied starting from the laser spotter indication towards the inside of the rim If the out of balance is less than the ...

Page 19: ...t at the point indicated by the internal laser After dimension acquisition in ALU mode pressing the buttons 1 2 3 you can select one of the following cor rection modes The adhesive weight application distance and diameter are measured by means of the automatic gauge except for the static unbalance where the dimensions acquired are modified following some fixed parameters WEIGHT APPLICATION POSITIO...

Page 20: ... planes In case the led 3 blinks 3 press button 3 and proceed with static unbalance correction by applying a stick on weight weight amount is shown on display 1 in position indicated by spotter press button 3 and perform a check spin to verify residuals on relative planes Should they be slightly out of tolerance proceed with standard correction mode OPB is not available if The spotter is disabled ...

Page 21: ...osition where to apply the adhesive weight on the outside When the dimensions have been acquired the laser reference point emitted by the spotter flashes fast Weight application The adhesive weights must always be applied starting from the laser indication towards the inside of the rim In order to obtain a correct laser reference point the tip of the automatic gauge must always remain in contact w...

Page 22: ...in tolerance on the external planes and the LED 3 blinks it is advisable to check and correct the residual static unbalance OPB 6 8 1 EP tolerance If the static unbalance is practically null the standard tolerance for the external planes is replaced with the EP tolerance The EP tolerance can be set on the display and by default is slightly higher than the standard tolerance 6 9 WEIGHTLESS CORRECTI...

Page 23: ...abled MENU to perform a spin 2 Make a reference mark on the flange and the rim using a piece of chalk for example With the aid of a tyre remover turn the tyre on the rim by 180 Refit the wheel in such a way that the reference marks on the rim and the flange coincide Close the guard and press the button START if start from the guard is disabled MENU to perform a spin 3 RH display percentage reducti...

Page 24: ...TICS BALANCING MACHINE CALIBRATION RETURN TO MEASUREMENT SCREEN Calibration of automatic RIM DISTANCE gauge Calibration of automatic DIAMETER gauge WIDTH calibration option screen saver operating time in minutes beep signal ON OFF ON OFF wheel locking UNBALANCE OPTIMISATION rim interior light ON OFF SPOTTER calibration device spotter on1 on2 OFF adhesive weight width start from guard closing ON OF...

Page 25: ...ancing machine use a wheel with steel rim of average dimensions e g 6 x 15 1 To properly perform the procedure Mount a wheel on the machine even unbalanced and very carefully set its dimensions Setting incorrect measurements will result in the machine not being correctly calibrated and balancing of subsequent wheels will hence be incorrect until the machine is recalibrated with the correct measure...

Page 26: ...R 3 Move the distance gauge feeler pin in line with the adapter surface and press ENTER CALIBRATION COMPLETE Return the gauge to rest position The wheel balancer is ready for operation 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 calibrationoperationexactlyasdescribedabove Iftheerrorpersists contacttheTechnica...

Page 27: ...figure and press ENTER CALIBRATION COMPLETE Return the gauge to rest position The wheel balancer is ready for operation In case of errors or malfunctions the indication of the same step P 1 or P2 always reappears on the display Move the gauge back into rest position and repeat the calibration operation as described above if the error persists contact Technical Service If erroneously accessing the ...

Page 28: ...ent be incorrect correct the calibration value proportional to the error In the event of incorrect input in the width gauge calibration function press STOP to cancel it 7 5 ADHESIVE WEIGHT WIDTH Indicates the average width of the adhesive weights on the market Change ONLY if the width of the adhesive weights used for unbalance correction differ 3 mm with respect to that shown on the screen default...

Page 29: ...lay buttons If you accidentally lose a weight during calibration the procedure needs to be repeated from scratch During calibration use the automatic distance and diameter gauge with the necessary accuracy 1 Display the spotter device CALIBRATION function from the SETUP menu 2 Move the distance gauge feeler pin near the first adhesive weight and press ENTER 3 Move the distance gauge feeler pin nea...

Page 30: ...ive weight and press ENTER CALIBRATION COMPLETE In the event of incorrect input in the width gauge calibration function press STOP to cancel it 7 6 1 Laser spotter brightness Used to adjust the laser spotter brightness Before modifying this parameter always check the laser regulations in force in the country where the machine is installed The value is expressed in percentage Recommended value 30 ...

Page 31: ...ancer does not switch on Verify correct connection to the mains Verify and eventually replace the fuses on the power card Verify monitor function Replace the computer board Err 1 No rotation signal Check in self diagnostics that the encoder functions properly Replace the phase pick up board Replace the computer board Err 2 Speed too low during detection During the unbalance measurement revo lution...

Page 32: ... between the spokes and the unbalance Err 45 ADC functioning error Turn the wheel balancing machine off and on again Replace the computer board Err 80 Spotter operating error Check spotter connection Replace the spotter Err 81 Spottercontrolmicroswitchoperatingerror Check the mechanical opening closing control of the microswitch inside the spotter Turn the machine off and on again and check that t...

Page 33: ...es people to serious danger due to the presence of potentially live parts The rules shown below must be scrupulously followed People must always use the Personal Protective Equipment indicated in the Installation Manual During activities unauthorised people may not access the equipment and WORK IN PROGRESS signs will be erected in the depart ment in such a way that they are visible from every plac...

Page 34: ... diagrams in this manual If necessary request specific information from the manufacturer Once you have removed the various parts and components separate them into the different types of materials ac cording to the differentiated waste disposal regulations in force in the country where the machine is dismantled If the various components must be stored before being taken to the dump make sure to kee...

Page 35: ...d in the machine Technical File archived by the Manufacturer as regards by Ministerial Decree 2006 42 CE In this case contact the Technical Service to identify the required piece If the required pieces are not in any position or they cannot be identified contact the Technical Service specifying the type of machine its serial number and year of construction This information is indicated on the mach...

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