K8 (B) - User Manual
Contents
1. 252 1 5 20 40 510 mm 10 30 or 265 765 mm Cum JUL UOL 572 Note DO NOT THE WHEEL BALANCER USING OTHER GRIPS 3 Startup 3 1 Anchoring The machine can operate on any flat non resilient floor Make sure that the machine rests solely on the three support points provided Fig 2a It is advisable to secure the system to the ground using the specific feet Fig 2a if the machine is continually used with wheels weighing over 35 kg 3 2 Electrical connection The machine is supplied with a single phase mains cable plus earth ground The power supply voltage and mains frequency is indicated on the machine identification plate and cannot be changed Connection to the mains must always be made by expert personnel The machine must not be set up without proper earthing Connection to the mains should be through a slow acting safety switch rated at 3 A 230V or 8 A 115 V See enclosed diagram 10457 GB 4 3 3 Adapter mounting The wheel balancer is supplied complete with cone adapters for fixing wheels with a central hole Other optional adapters can be mounted a Remove the threaded end piece A after unscrewing the screw B b Mount the new flange see attached sheets Note CAREFULLY CLEAN THE COUPLING SURFACES BEFORE PERFORMING ANY OPERATION 3 4 Wheel guard2. make sure that the wheel is securely locked on the flange The machine operator must not wear clothes with flapping parts Do not allow unauthorized personnel to approach the wheel balancer when the cycle is running Avoid placing objects in the base which could impair the correct operation of the wheel balancing machine Before disassembling the weight shelf remove the guard see specific instructions 1 1 1 Standard safety devices Stop push button for stopping the wheel under emergency conditions The wheel guard is not compulsory since the balancing speed is less than 100 1 2 Field of application The machine is designed for balancing wheels of cars light commercial vehicles or motorcycles weighing less than 75 kg It can be operated in a temperature range of 0 to 45 C The following functions are provided ALUS SPLIT Unbalance optimisation Autodiagnostics Autocalibration 1 3 Overall dimensions 1 1350 10457 GB 3 1 4 Technical data Single phase power supply Protection class Max power absorbed Balancing speed Cycle time for average wheel 14 kg Max resolution of measurement Position resolution Average noise Rim machine distance Rim width setting range Diameter setting range 2 Handling and lifting 115 230 V 50 60 Hz IP 54 0 8 Kw lt 100 min 6 8 seconds 1 gram 1 4 lt 70dB A 0
3. the unbalance values on the basis of the new setting Measuring 5 Setting r Setthe distance a between the inside of the wheel oo mum 4 Setthe nominal width normally indicated on the b rim or measure the width b using the caliper zx gauge supplied Set the nominal diameter indicated on the tyre This setting is also valid for the following correction modes The STATIC mode is required for motorcycle wheels or when it is not possible to place the counterweights on the two sides of the rim Balancing of light alloy rims with application of adhesive weights on the shoulders of the rims The position of the weights is fixed from the edges of the rim to the inside of the rim Combined balancing adhesive weight on the outside and clip on weight on the inside The position of the outside weight is fixed from the outside edge of the rim to the inside of the rim Combined balancing adhesive weight on the inside and clip on weight on the outside The position of the inside weight is fixed from the edge of the rim to the inside of the rim Lida 10457 GB 8 Balancing of alloy rims with hidden application of the outside adhesive weight The position of the weights can be set Measuring e O0gauge eoe wO Y Yj aE Setting on Bn x u mg 2727 vere nas no OD button down for more than 2 seco
4. CONTENTS rama 44 GENERAL SAFETY REGULATIONS a1 STANDARD saret bewees 43 OVERALL omensions WHEEL GUARD ASSEMBLY AND ADJUSTMENT OPTIONAL s if i cowmorsawpcoweowNIS S 41 MANUALDISTANCEMEASUREMENTGAUGE S sTRUCTONSFORUSEOFTHEWMEELBALANGER e 54 SETTINGTHEWHEELDMENSIONS e si weasEwENTRESUT r 5 RECALCULATION OF THE UNBALANCE 11 s4 SPLITFUNCTION HIDDENWEIGH ee Pss auropaenosnes 4 os 5 74 NCONSSTENTUNBALANCEREADNGS eA REPLACING THE PROTECTION Fuses 10457 GB 1 10457 2 1 General 1 1 General safety regulations The wheel balancer may only be used by duly authorized 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 specialised personnel only Avoid using 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
5. Co RIM POSITION I CANCEL RH display percentage reduction value LH display actual static unbalance value which can be reduced by rotation OPTIMISATION IN ANY PHASE 5 6 Automatic minimisation of static unbalance Initial unbalance sx dx phase shift 50 Possible approximations 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 com mercially available weights with pitch of 5 in every 5 g and by applying the two counterweights which a 5 dx Sx dx residual static 4 5 residual static 3 g iresidual staticl g With conventional Choice with minimum wheel balancer static residua residual static 6 g 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 automatically indicates the optimum entity of the weights to be applied by approximating them in an intelligent way according to their posi tion in order to minimize residual static unbalance 1 0457 GB 13 6 Set up 6 1 Autodiagnostics 6 2 Autocalibration Performs tests useful for maintenance staff For autocalibration proceed as follows Fit a wheel with steel rim of average dimensions on t
6. DTH setting button 13 14 15 16 17 18 19 MENU 12 lt 19 START 14 17 Manual DIAMETER setting button Push button FUNCTION MENU Balancing cycle stop button Balancing cycle start button Unbalance optimization push button Push button SPLIT unbalance resolution HOME push button MENU selection confirmation pushbutton Push button unbalance reading lt 5 g 25 oz Note Press buttons only with your fingers Do not use the counterweight grippers or other pointed objects 10457 GB 6 4 2 1 Function menu management mm inch diameter CONFIRM gt CONFIRM width start from CONFIRM guard closing approx 5 gt CONFIRM 0 1 0 25 oz TIT nooo DEG goog Y un m E t See chapter on AUTODIAGNOSTICS 18 See chapter on AUTOCALIBRATION g oz unit of 69 0 2 unbalance STOP RETURN TO MEASUREMENT SCREEN 10457 GB 7 5 Instructions for use of the wheel balancer 5 1 Setting the wheel dimensions a DYNAMIC balancing of steel or light alloy rims with application of clip on weights on the edge of the rim ALU From the measurement frame press inside and outside to select the desired correction mode The illuminated LEDs indicate the position where the weights should be applied If a spin has already been carried out each time the mode is changed the processor automatically recalculates
7. assembly and adjustment optional a Fasten the components to the base as illustrated in specific exploded view b With the guard closed check that the microswitch prod has slipped into place on the ring c Appropriately adjust the angular position of the control ring N B Do not lean on the guard during the wheel balancing cycle 3 5 WD spacer option When balancing very wide wheels 9 there is 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 DC WD Spring A Cone on 4 Controls and components 4 1 Manual distance measurement gauge This gauge serves to manually measure the distance between the point of application of the counterweight and the machine 10457 5 4 2 Keyboard and display 4 1 2 1 2 Digital readouts AMOUNT OF UNBALANCE inside outside 3 4 Digital readouts POSITION OF UNBALANCE inside outside 5 Inside correction mode selection button 6 Indicators correction mode selected 7 Outside correction mode selection button 8 Special function indicators 9 Manual DISTANCE setting button 10 Manual WI
8. he counterweights 12 o clock n If the unbalance is less than the threshold value selected is displayed instead of the unbalance value with the values below the threshold can be read selected gram by gram Note in the case of wheels with a diameter less than or equal to 13 and at temperature conditions near 0 the wheel balancer automatically inserts a special measuring cycle composed of two successive measurements The accuracy of the unbalance values and the reliability of the wheel balancer remain unchanged This type of operation is reset each time the wheel balancer is started 5 3 Recalculation of the unbalance values Press after new setting of the measurement 10457 GB 11 5 4 SPLIT function hidden weight 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 only in the case of static unbalance or where the hidden adhesive weight is to be applied on the outside Input the wheel dimensions and do a spin Start the SPLIT function as follows 1 Example of display prior to SPLIT function Place the wheel in the outside unbalance correction position Set one of the top spokes preferably the one to the left of the unbalance to 12 o clock Press the button Follow the UP DOWN indication of the positioning LEDs and set the second top spoke to 12 o clock Press button D i 0 Set the first spli
9. he shaft Example 6 x 14 1 Set the exact dimensions of the wheel mounted 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 Gig 0457 GB 14 Perform a spin under normal conditions Add a 60 g sample weight 2 00 oz on the outside any angular position Shift the sample weight from the outside to the inside keeping the same angular position Turn the wheel until the sample weight is in the 12 o clock position END OF AUTOCALIBRATION CANCEL AUTOCALIBRATION IN ANY PHASE 7 Errors During machine operation there may be various causes of malfunctioning which if detected by the microprocessor are indicated on the display Err S ERRORS CAUSES CONTROLS Black The wheel balancer does not come 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 generator and in particular the reset signal 3 Replace the phase generator 4 Replace the computer board Err 2 Too low speed during measurement Check that a vehicle wheel has been mounted on the wheel During the unbalance measurement balancer revolutions the wheel speed has fa
10. llen to Check belt tautness below 42 rpm Check functioning of the phase generator and in particular the reset signal Replace the computer board Err 3 Too high unbalance Check the wheel dimension setting Check the sensor connections Run the machine calibration function Mount a wheel with a more or less known unbalance less than 100 grams and check the machine response Replace the computer board Err 4 Rotation in opposite direction Verify the connection of the UP DOWN RESET signals on the After pressing START the wheel phase generator starts turning in the opposite direction anticlockwise Err 5 Guard open 1 Reset the error The START pushbutton was pressed 2 Close the guard without first closing the guard 3 Verify the function of the protection uSwitch 4 Press the START button Err 7 NOVRAM parameter read error 1 Repeat machine calibration Err 8 2 Shutdown the machine Err 9 3 for at least 1 min 4 Restart the machine and check proper functioning 5 Replace the computer board Err 11 Too high speed error 1 Check if there is any damage or dirt on the timing disc The average spinning speed is greater than 2 Check functioning of the phase generator and in particular the 240 rpm reset signal 3 Replace the computer board Err 14 Unbalance measurement error 1 Check functioning of the phase generator Err 15 2 Check the sensor connections Err 16 3 Check the machine earthing c
11. nds when the value of any one of the dimensions appears on the display Note Not setting dE as it is automatic dE d 2 10457 GB 9 c Combined balancing clip on weight on the inside and hidden adhesive I weight on the outside Mercedes The position of the weights can be set Measuring d Y dE 0 gauge al Setting oo O0 DO e sot BOLE s button down for more than 2 seconds when the value of any one of the dimensions appears on the display Note not setting dE as it is automatic dE d 2 10457 GB 10 d Setting with gauge extension Extension 60 The extension increases the gauge distance measurement field by 60 mm Fig A and allows distance measurement even when the rim has a special profile Fig B Proceed as indicated below Fit the extension on the distance gauge Measure the distance as already described Having read value a on the dial reset the gauge to 0 and set by hand the value a 60 Manually set the diameter and the width 5 2 Measurement result iG 4g Inside correction wo yo 00000 25 Wn Outside correction 00000 After performing a balancing spin the amounts of unbalance are shown the digital readouts The illuminated LEDs 3 and 4 indicate the correct angular position of the wheel to mount t
12. onnection Err 17 4 Mount a wheel with a more or less known unbalance less than 100 Err 18 grams and check the machine response Err 19 5 Replace the computer board Err 21 Motor on for more than 15 seconds 1 Check functioning of the phase generator 2 Check the connections on the power board 3 Replace the computer board Err 22 Maximum number of spins possible for 1 Check that a vehicle wheel has been mounted on the wheel the unbalance measurement has been balancer exceeded Check belt tautness Check functioning of the phase generator and in particular the reset signal Replace the computer board Err 24 Distance between the spokes smaller The minimum distance between the spokes where to split the than 18 degrees unbalance must be greater than 18 degrees Repeat the SPLIT function increasing the distance between the spokes Err 25 Distance between the spokes greater The minimum distance between the spokes where to split the than 120 degree unbalance must be smaller than 120 degrees Repeat the SPLIT function increasing the distance between the spokes 1 0457 15 Err 32 Errors related to test functions of the wheel 1 Cancel the error and continue using the wheel balancer as normal Err 33 balancer Err 34 Err 35 Err 36 Err 37 7 1 Inconsistent unbalance readings It may occur that after balancing a wheel when removing it from the wheel balancer and then remounting it the wheel is n
13. ot balanced This is not the result of an incorrect indication by the machine but only of incorrect mounting of the wheel on the flange i e in the two mountings the wheel has assumed a different position with respect to shaft axis of the wheel balancer If the wheel has been mounted on the flange with screws it may be that the screws have not been tight ened correctly in gradual criss cross manner one after the other or as often occurs holes have been drilled in the wheel with too wide tolerances Small errors up to 10 grams 0 4 oz are to be considered normal in wheels locked with a cone the error is normally greater for wheels locked with screws or studs If after balancing the wheel is still unbalanced when refitted on the vehicle this could be due to the unbalance of the brake drum or very often is due to the screw holes in the rim and the drum drilled with too wide tolerances In this case a readjustment would be advisable using the wheel balancer with the wheel mounted 8 Routine maintenance Before carrying out any operation on the machine cut the power supply to the machine 8 1 Replacing the protection fuses A protection fuse is fitted on the power board accessible by dismantling the weight shelf 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 10457 GB 16
14. t unbalance to correction position 1 Set the second split unbalance to correction position 2 15 9 n Correction position 2 N B lferror 24 is displayed repeat the SPLIT function ensuring that the minimum distance between the spokes is greater than 18 degrees If error 25 is displayed repeat the split function ensuring that the maximum distance between the spikes is smaller than 120 degrees To return to normal unbalance display press any button To carry out a new spin press the RAGGI button 10457 GB 12 5 5 Out of balance optimization This function serves to reduce the amount of weight to be added in order to balance the wheel It is suitable for static unbalance greater than 30 g It improves the residual eccentricity of the tyre The led lights up No previous unbalance measurement Unbalance already measured Sta rt START unbalance measurement With the Refit the gc With a piece of chalk make a reference mark on the flange and the rim aid of a tyre remover turn the tyre on the rim by 180 wheel in such a way that the reference marks on the rim and the flange START coincide 45 807 Mark the two positions of the rim and tyre and turn the tyre on the rim until the positions correspond in order to obtain the optimization on the display TYRE POSITION Co
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