2 - HANDLING AND HOISTING START-UP...5

Transcription

1 Instructions for use I INDEX page 1 - GENERAL GENERAL SAFETY REGULATIONS STANDARD SAFETY DEVICES FIELD OF APPLICATION OVERALL DIMENSIONS TECHNICAL DATA HANDLING AND HOISTING START-UP ANCHORING ELECTRICAL CONNECTION PNEUMATIC CONNECTION (Model P) FURTHER SAFETY DEVICES (Model P) ADAPTER MOUNTING...5 SE2 MOUNTING P-SHAFT SE2 DISMOUNTING P-SHAFT WHEEL GUARD ASSEMBLY AND ADJUSTMENT SPACER WD / DC (OPTION) CONTROLS AND COMPONENTS BRAKE PEDAL PNEUMATIC LOCKING PEDAL (Version P) MEGASTICK - AUTOMATIC DISTANCE AND DIAMETER GAUGE AUTO SENSE - AUTOMATIC WIDTH GAUGE (OPTION) AUTOMATIC WHEEL POSITIONING CONTROL PANEL AND DISPLAY HANDLING OF THE FUNCTIONS MENU INDICATIONS AND USE OF THE WHEEL BALANCER AUTO SELECT AUTO SELECT FOR STEEL RIMS AUTO SENSE - AUTOMATIC WIDTH (OPTION) AUTO SELECT FOR ALUM AND PAX RIMS AUTO SELECT FOR ALU 3M RIMS ALU 1 & ALU 2 RIMS MANUAL PRESETTING (Use only in particular cases or for test) RESULT OF MEASUREMENT DOUBLE OPERATOR PROGRAM SPLIT FUNCTION (unbalance spread) UNBALANCE OPTIMIZATION ALU AND STATIC MODES MINISTAT - AUTOMATIC MINIMIZATION OF STATIC UNBALANCE SET-UP AUTODIAGNOSTICS SELF-CALIBRATION ERRORS INCONSISTENT UNBALANCE READINGS ROUTINE MAINTENANCE REPLACING THE PROTECTION FUSES LIST OF RECOMMENDED SPARE PARTS...26 I 0318 GB - 1

2 Hinweis: Diese Maschine darf aufgrund internationaler Bestimmungen in folgende Länder nicht verkauft werden: Deutschland, Frankreich, Italien, USA I 0318 GB - 2

3 1 - GENERAL 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, make sure that the wheel is securely locked on the adapter. - 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 STANDARD SAFETY DEVICES - Stop push button for stopping the wheel under emergency conditions. - The plastic safety guard of high impact strength is with shape and size designed to avoid risk of counterweights from flying out in any direction except towards the floor. - A microswitch prevents starting the machine if the guard is not lowered and stops the motor whenever the guard is raised 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: AUTO SELECT; ALU-M; ALU-3M; SPLIT; Unbalance optimisation; Double operator; Autodiagnostics; Self calibration OVERALL DIMENSIONS 1 I 0318 GB - 3

4 1.4 - TECHNICAL DATA Weight with guard (excluding adapter) Kg version with spindle Kg version with pneumatic spindle 400P Single-phase power supply /230V Hz Protection class... IP 54 Max. power absorbed... 1,1 Kw Balancing speed min -1 Cycle time for average wheel (14 Kg)... 6 seconds Max. resolution of measurement... 1 gram Position resolution... ± 1.4 Average noise... < 70dB (A) Rim-machine distance mm Rim width setting range or mm Diameter setting range or mm Total wheel diameter within guard mm (42 ) Total wheel width inside guard mm Min/max. compressed air pressure Kg/cm 2 (0.7 ~ 1MPa; 7 ~ 10 BAR; ~ 145 PSI) 2 - HANDLING AND HOISTING 2 2a N.B.: NEVER USE OTHER POINTS TO HOIST THE MACHINE I 0318 GB - 4

5 3 - START - UP 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.2). If possible, it is advisable to anchor to the floor using relative mounting feet (see fig. 2a) if the machine is continually used with wheels weighing over 35 kg 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 4A (230V) or 10A (115V). See enclosed diagram PNEUMATIC CONNECTION (Model P) For operation of the spindle with pneumatic locking (costant thrust air spring) connect the wheel balancer to the compressed air main. The connection fitting is located at the back of the machine. At least 7 Kg/cm 2 (~ 0.7 MPa; ~ 7 BAR; ~ 100 PSI) pressure is needed for correct operation of the release device FURTHER SAFETY DEVICES (Model P) - Wheel always locked even when there is pressure failure during the balancing cycle. - Always actuate the unlocking control pedal with the machine stationary in order to avoid stress and abnormal wear on the adapter ADAPTER MOUNTING The wheel balancer is supplied complete with cone type adapter for fastening wheels with central bore. Other optional flanges can be mounted once the terminal part is removed (also see enclosed brochures). N.B.: CAREFULLY CLEAN THE COUPLING SURFACES BEFORE PERFORMING ANY OPERATION. DISASSEMBLY OF THE THREADED END PIECE a) Loosen screw B and remove threaded end-piece A. b) Mount the new adapter. 3 A B I 0318 GB - 5

6 1-2 mm SE2-Mounting 0 mm a b c d e f g SE2_ 0140

7 SE2-Dismounting 360 a b c d Cone e - Quando possibile, centrare le ruote con cono dall'interno (vedi disegno). - Evitare di usare il manicotto RL con cerchi di ferro. - Whenever possible, centre the wheels with the cone from the inside (see the drawing). - Avoid using the RL sleeve with metal rims. - Lorsque c est possible, centrer les roues avec le cône de l intérieur (voir dessin). - Eviter d utiliser le manchon RL avec les jantes en fer. - Wenn möglich, die Räder mit Konus von Innen heraus zentrieren (siehe Zeichnung). - Bei Eisenfelgen die Verwendung der Muffe RL vermeiden. - Siempre que sea posible, centrar las ruedas con cono desde dentro (véase dibujo). - Evitar usar el manguito RL con llantas de hierro. SE2_ 0140

8 3.6 - WHEEL GUARD ASSEMBLY AND ADJUSTMENT a) Fasten the components to the base as illustrated in the specific exploded drawing. b) The position of the wheel guard when closed can be adjusted with relative screw accessible at the back. Correct position: horizontal. c) Check that the microswitch is held down when the guard is closed. d) Adjust the angular position of microswitch control SPACER WD/DC (OPTION) When balancing very wide wheels (9 ), there is not enough space to turn the distance gauge. To keep the wheel off 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. 4 DC WD Spring Cone I 0318 GB - 8

9 4 - CONTROLS AND COMPONENTS BRAKE PEDAL 5 It allows the operator to hold the wheel when fixing the counterweights. It must not be used during the measuring cycle PNEUMATIC LOCKING PEDAL (Version P) 6 It allows the fixing/releasing of the wheel on the flange. It must not be used during the machine cycle and/or when different flanges are mounted from that with standard cones. The pedal has two stable positions: upper position for unlocking; lower position for locking the wheel MEGASTICK - AUTOMATIC DISTANCE AND DIAMETER GAUGE Allows measuring the distance from the machine and the diameter at the point of application of the counterweight. The same gauge allows proper positioning of the counterweights inside using the specific function which allows reading on the display the position used for the measurement within the rim AUTO SENSE - AUTOMATIC WIDTH GAUGE (OPTION) Width gauging is through a SONAR device which measures the width of the wheel without mechanical contact, simply by closing the guard and each time a valid measurement has been made with the MEGASTICK AUTOMATIC WHEEL POSITIONING At the end of the spin, the wheel is positioned according to unbalance on the outside or static unbalance (when selected). Positioning is disabled automatically for wheels with diameter less than 13. Accuracy is about +/-20 degrees for wheels weighing up to 25 kg. I 0318 GB - 9

10 4.6 - CONTROL PANEL AND DISPLAY / 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 mode of correction 10 Push button, SPLIT (unbalance spread) 11 Push button, FUNCTION MENU 12 Confirm selection button 13 Push button, cycle start 14 Push button, emergency 15 Push button, manual DISTANCE / DIAMETER / WIDTH setting 16 HOME button 17 AUTO-SELECT button 18 Push button, diameter and width unit of measure selection 19 Push button, unbalance optimization N.B.: Press buttons only with your fingers. Do not use the counterweight pincers or other pointed objects. - When the beep signal is enabled (see FUNCTIONS MENU MANAGEMENT), pressing of any push button is accompanied by a Beep. I 0318 GB - 10

11 HANDLING OF THE FUNCTIONS MENU on/off beep signal guard on/off on/off start from guard closing approx. -5 g or oz CONFIRM CONFIRM CONFIRM CONFIRM See chapter on AUTODIAGNOSTICS 6.1 See chapter on SELF CALIBRATION 6.2 g/oz unit of measure unbalance CONFIRM Calibration of automatic RIM DISTANCE gauge (Only for service-personnel) Calibration of automatic DIAMETER gauge (Only for service-personnel) Calibration of automatic WIDTH gauge (optional) (Only for service-personnel) temperatura Ambient ambiente temperature in CONFIRM (in C C) (opzione) (optional) RETURN TO MEASUREMENT SCREEN I 0318 GB - 11

12 5 - INDICATIONS AND USE OF THE WHEEL BALANCER AUTO SELECT The machine automatically detects the correct balancing program for Steel-, ALU M-, PAX-, and ALU 3M-rims AUTO SELECT FOR STEEL RIMS Move the gauge tip of the MEGASTICK into contact against the rim using the special grip. Hold it in ths position until a beep is heard. 8 Return the MEGASTICK to rest position. The machine has automatically detected the steel rim-mode. b Set the rated width, which is generally indicated on the rim, or measure the width using the compass gauge (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 current mounted wheel. I 0318 GB - 12

13 AUTO SENSE - AUTOMATIC WIDTH (OPTION) If width measurement by means of the SONAR device is enabled, the following appears at the end of the automatic measurement of the distance and diameter with the MEGASTICK: For large wheels (e.g. off-road vehicles, light trucks or wheels protruding far out from the rim) press the button switch from: to N.T. = NORMAL TYRE L.T. = LIGHT TRUCK Slowly close the wheel guard until a beep is heard. If AUTOMATIC START is enabled when the wheel guard is closed, the wheel balancer spins once to measure the unbalance, otherwise the following appears: Press the button to perform a spin. I 0318 GB - 13

14 AUTO SELECT FOR ALU M AND PAX RIMS 9 Slide out the MEGASTICK to the left side, at the point where an adhesive weight is to be fitted. Hold the MEGASTICK in this position until a beep is heard. Slide it out further towards the right side and wait for the second beep. The machine has automatically detected the ALU M mode. The ALU-M LED lights up. Return the MEGASTICK to rest position and Perform a measuring spin. 10 For the adhesive weight in the left position, turn the wheel to the correct angle, secure the weight in the clamp with the adhesive facing upwards and slide out the MEGASTICK until a beep is heard. Push the clamp upwards until the weight adheres to the wheel. Return the MEGASTICK to the rest position and proceed for the right position in the same way. Move the MEGASTICK further to the right until a beep is heard. Move the MEGASTICK further to the left until a beep is heard. Perform 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. I 0318 GB - 14

15 AUTO SELECT FOR ALU 3M RIMS 11 Slide out the MEGASTICK to the edge of the rim, at the point where the clip-on weight is to be fitted. Hold the MEGASTICK in this position until a beep is heard. Slide the MEGASTICK further out towards the right side, at the point where an adhesive weight is to be fitted. Wait for the second beep. The machine confirms with ALU 3M To indicate the free choice of the position planes the ALU M LED is also lighting up. 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 positions manually. to switch to the ALU 3M Perform a measuring spin For the clip-on weight in the left position turn the wheel to the correct angle and fix the weight manually in the12 o clock position. For the adhesive weight in the right position turn the wheel to the correct angle, secure the weight in the clamp with the adhesive facing upwards, and slide out the MEGASTICK until a beep is heard. Push the MEGASTICK upwards until the weight adheres to the wheel. Push the MEGASTICK further to the right until a beep is heard. Push the MEGASTICK further to the left until a beep is heard. Perform 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. I 0318 GB - 15

16 ALU 1 & ALU 2 RIMS Input the wheel data as for the steel rims (see AUTO SELECT FOR STEEL RIMS). Perform a measuring spin Press as many times as the LEDS ALU 1 or ALU 2 light up. Fix the weights in correspondence to the points indicated. Perform a control spin. To balance more tyres of the same type and dimensions, the machine automatically stores the data for the current mounted wheel MANUAL PRESETTING (Use only in particular cases or for test) Standard wheels To enable manual dimension setting, hold the button down for at least 3 seconds the first time it is pressed. - Press until a symbol is shown. - With the gauge in rest position, measure the distance wheel-machine (in cm). Set the value substracting 1 cm. - Select by pressing - Set the nominal diameter indicated on the tyre. - Select by pressing - Set the nominal width, which is normally stamped on the rim, or proceed to measure the width with the caliper gauge (supplied as standard). I 0318 GB - 16

17 ALU-M wheels Measure the values according to the diagram hereunder mm SETTING: Select the value to be set by pressing N.B.: Set the values 1 and 2 in cm deducting 1 cm from the value measured. N.B.: Not setting the value of the outside diameter ( ) the system automatically calculates: outside diameter ( ) = 0.8 x inside diameter ( ). I 0318 GB - 17

18 5.3 - RESULT OF MEASUREMENT 12 Inside correction Outside correction After performing a balancing spin, the amounts of unbalance are shown on the digital readouts. Digital readouts with LED s 3-4 lit up indicate the correct angular wheel position to mount the counterweights (12 o clock position). If the audible alarm is enabled (see FUNCTION MENU MANAGEMENT), the acquisition of the correction position is confirmed by a beep alarm. 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 DOUBLE OPERATOR PROGRAM This program allows memorizing the dimensions of two types of wheels. In this way two operators can service two different vehicles at the same time, using the same wheel balancer. The system memorizes two programs with various preset dimensions. 1. Press to select operator (1 or 2). Selection is confirmed by panel-mounted LED. 2. Input the dimensions (see 5.1 AUTO SELECT) 3. Press to carry out the balancing as usual and to store the program. With program 1 or 2 is called for subsequent balancing operations without having to newly enter the dimensions. I 0318 GB - 18

19 5.5 - SPLIT FUNCTION (unbalance spread) The SPLIT function is used to position the adhesive weights behind the wheel spokes so that they are not visible. It is advisable to use this function only in the event of ALU M/PAX or ALU 3M unbalance. Input the wheel dimensions and start a spin. To start the SPLIT function, input the following data: Example of display prior to SPLIT function - Input the number of spokes ( 3-12 ) - Move a spoke at random to the 12 o clock position Place the first split unbalance in correction position Correction position Set the second split unbalance to correction position Correction position 2 To return to normal unbalance display, press the button To perform a new spin, subsequently press the button I 0318 GB - 19

20 5.6 - UNBALANCE 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 of more than 30 g. - It improves the residual eccentricity of the tyre. A) - With a piece of chalk make a reference mark on the flange and the rim - With the aid of a tyre changer, turn the tyre on the rim by Refit the wheel in such a way that the reference marks on the rim and the flange coincide. TYRE POSITION RIM POSITION - Right display: percentage reduction value - Left display: actual static unbalance value which can be reduced by rotation - 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 on the display. or RETURN TO MEASUREMENT SCREEN If a spin was not executed before pressing the button the machine requests a spin as follows: The procedure resumes from point A). I 0318 GB - 20

21 5.7 - ALU AND STATIC MODES From the measurement screen, press button or to select the type required. The 5-LED displaysshow the position where to apply the weights. If a spin has already been carried out, each time the mode is changed, the processor automatically recalculates the unbalance values on the basis of the new setting. 13 Button DYNAMIC STATIC DYNAMIC DYNAMIC Balancing of steel or light alloy rims with application of clip-on weights on the rim edges. STATIC Button ALU M/PAX The static mode is necessary for motorcycle wheels or when it is not possible to place the counterweights on both sides of the rim. ALU M ALU 3M ALU 1 ALU 2 ALU M Balancing of alloy rims with hidden application of adhesive weights. ALU 3M Combined application: clip-on weight inside and hidden adhesive weight on outside (Mercedes). ALU - 1 Balancing of light alloy rims with application of adhesive weights on the rim shoulders. ALU - 2 Combined application: adhesive weight outside and clip-on weight inside MINISTAT - AUTOMATIC MINIMIZATION OF STATIC UNBALANCE Initial unbalance sx dx g g Phase shift 50 Possible approximations sx g dx sx dx sx dx sx dx g g g 4 g static residue 3 g 1 g 6 g static residue static residue static residue g g g g With traditional wheel balancer Choice with minimum static unbalance This program is designed to improve the quality of balancing without any mental effort or waste of time by the operator. In fact, using the normal weights available on the market (pitch of 5 in every 5 g) and applying the two counterweights which a conventional wheel balancer rounds to the nearest value, a residual static unbalance of up to 4 g may result. The damage of such approximation is emphasized by the fact that static unbalance is the cause of most disturbances on vehicles. This new function 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. If it is not possible to minimize completely the static unbalance keeping in tolerance the dynamic unbalance, this function has the solution to minimize the static unbalance. I 0318 GB - 21

22 6 - SET-UP AUTODIAGNOSTICS DISPLAY TEST - All displays and LEDs should light up in sequence. - Turn the wheel in direction of rotation. The following appears: - Turn the wheel in reverse direction of rotation. The following appears: - In one complete wheel revolution (in direction of rotation), this should appear once - Control parameter (values are not relevant) - Displays values of rim DISTANCE sensor - Displays values of DIAMETER sensor - Displays values of WIDTH sensor (option) END OF AUTODIAGNOSTICS CANCELS AUTODIAGNOSTICS IN ANY PHASE I 0318 GB - 22

23 6.2 - SELF-CALIBRATION For machine self-calibration proceed as follows: - Fit a medium-sized steel wheel on the 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 selfcalibration is performed with the correct dimensions!! - Perform a spin under normal conditions. - Add 100 g (3.5 oz) on the outside in any position. - Shift the 100 g weight from the outside to the inside keeping the same position. - Rotate the wheel WITH the 100 g weight to the 12 o clock position. END OF SELF-CALIBRATION CANCELS SELF-CALIBRATION IN ANY PHASE I 0318 GB - 23

24 7 - ERRORS During machine operation there may be various causes of malfunctioning which, if detected by the microprocessor, are indicated on the display: ERRORS CAUSE CHECKS 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. During the unbalance measurement revolutions, the wheel speed has fallen to below 42 rpm. 1. Check that a car wheel has been mounted on the wheel balancer. 2. Check belt tautness. 3. Check functioning of the phase generator and, in particular, the reset signal. 4. Replace the computer board. Err. 3 Unbalance to high. 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 Err. 5 Rotation in opposite direction. After pressing [START], the wheel starts turning in the opposite direction (anticlockwise). Guard open The [START] pushbutton was pressed without first closing the guard. 1. Verify the connection of the UP/DOWN - RESET signals on the phase pick-up board. 1. Reset the error by pressing pushbutton STOP/HOME. 2. Close the guard. 3. Verify the function of the protection-switch. 4. Press the [START] button. Err. 7 / Err. 8 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. 9 NOVRAM parameter write error. Replace the computer board. Err. 10 Err. 11 Measured width too small. N.B.: The minimum width the wheel balancer accepts is 1.5 or 40 mm. Too high speed error. During unbalance measurement rotation, wheel speed is more than 270 rpm. 1. Repeat the distance measurement. 2. Repeat the width measurement. 3. Verify the calibration of the distance gauge and replace the distance gauge potentiometer if necessary. 4. Verify the calibration of the width gauge and replace the width gauge potentiometer as necessary. 5. Replace the computer board. 1. Check if there is any damage or dirt on the timing disc. 2. Check functioning of the phase generator and, in particular, the reset signal. 3. Replace the computer board. Err. 12 Unbalance measuring cycle error. 1. Check functioning of the phase generator. 2. Verify correct motor operation. 3. Check belt tautness. 4. Replace the computer board. Err.13/ Err.14/ Err.15/ Err.16/ Err.17/ Err.18 Unbalance measurement error. 1. Check functioning of the phase generator. 2. Check the Piezo-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. Procedure error in automatic distance acquisition in ALU M, ALU 3M and PAX. 1. Pull out the gauge and measure the external side distance. 2. Verify the calibration of the distance gauge. 3. Verify the operation of the distance potentiometer. I 0318 GB - 24

25 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 not 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 tightened 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 REPLACING THE PROTECTION FUSES Some protection fuses are located on the power board (see exploded drawings) accessible by dismantling the weight shelf). 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. I 0318 GB - 25

26 9 - LIST OF RECOMMENDED SPARE PARTS (For further details, see exploded drawings enclosed) CODE DESCRIPTION Bearing Z Ø 25/47/ Spring 19863P Rigid belt Poly V - TB crested 67M38954C Phase generator board with cable Spring brake lever 24587P 18FC38385 Spiral spring 86SB39034 Cable, automatic rim distance gauge 86SB36493 Cable, automatic diameter gauge 05PR59382 LEXAN Panel Two-pole switch 16A 67M48208A Power board 2 relays/2 sonar Fuses DM 5x20-2A 86SC59519 Computer board 86SB38585 Cable with protective microswitch guard SPECIAL PARTS FOR 230 V MACHINES 50FG55641 Single phase motor 230 V/50-60 Hz Kw 4p HB63D-4 86SZ52433 Complete power board Braking transformer 30VA 230-0/ Capacitor 14MF 450 V FASTON screw M Power supply transformer 40VA 230 SPECIAL PARTS FOR 115 V MACHINE 50FG55643 Single phase motor 115 V/50-60 Hz Kw - 4p HB63D-4 86SZ52434 Complete power board Braking transformer 30VA 115-0/ Capacitor 25MF 450V FASTON screw M Power supply transformer 40VA 115 SPECIAL PARTS FOR SPINDLE SE Bearing LLB/2AV1 (Ø 35/62X14) Bearing Z Ø 35/62X14 18FP29329 Air spring 115 Kg. stroke 75 mm 16FB42177 Ball valve 18FB42639 Automatic pedal spring SPECIAL DETAILS - SONAR WIDTH OPTION 86SB58646 WIDTH Sonar prot. 42 Pneumatic diagram 16SP43470P I 0318 GB - 26