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Hofmann megaspin 300 Operating Instructions Manual

Wheel balancer with microprocessor for cars, light commercial vehicles and motorcycles
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HofmannIndustrial GmbH
A - 5302 Henndorf
Hauptstraße 59
Tel +43-6214-6466-12 \ Fax -22
WHEEL BALANCER WITH MICROPROCESSOR FOR CARS,
LIGHT COMMERCIAL VEHICLES AND MOTORCYCLES
Weight and
accessory tray
Adapter holder pins
N° 0068 - 1999.04
Operating instruction manual
Control panel
( Series A )
Wheel guard
Balancing spindle
Pneumatic spindle
locking pedal
(Version P)
0068 - 1
( Series A )
Automatic width
gauge (optional)
Automatic rim distance
+ diameter gauge
Parking brake
pedal

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Summary of Contents for Hofmann megaspin 300

  • Page 1 0068 - 1 HofmannIndustrial GmbH A - 5302 Henndorf Hauptstraße 59 Tel +43-6214-6466-12 \ Fax -22 ( Series A ) ( Series A ) WHEEL BALANCER WITH MICROPROCESSOR FOR CARS, LIGHT COMMERCIAL VEHICLES AND MOTORCYCLES N° 0068 - 1999.04 Operating instruction manual Wheel guard Control panel Automatic width...
  • Page 2 2 - 0068...

  • Page 3: Table Of Contents

    0068 - 3 CONTENTS page 1 - GENERAL ..................................5 1.1 - GENERAL SAFETY RECOMMENDATIONS ....................5 1.1.1 - STANDARD SAFETY DEVICES ....................5 1.2 - FIELD OF APPLICATION ..........................5 1.3 - OVERALL DIMENSIONS ..........................5 1.4 - SPECIFICATION .............................. 6 2 - HANDLING AND HOISTING ............................
  • Page 4 4 - 0068...

  • Page 5: General

    0068 - 5 1- GENERAL 1.1 - GENERAL SAFETY RECOMMENDATIONS - The balancing machine should only be used by duly authorized and trained personnel. - The balancing machine should not be used for purposes other than those described in the instruction manual.

  • Page 6: Specification

    6 - 0068 1.4 - SPECIFICATION Weight with guard (excluding adapter) 108 kg version with standard spindle 300 120 kg version with pneumatic spindle 300P Single phase power supply 115 /230 V 50-60 Hz Protection class IP 54 Max. power consumption 500 W Balancing speed approx.

  • Page 7: Pneumatic Connection (Only For Version P)

    The balancing machine is supplied complete with cone adapter for fastening wheels with central bore. Other optional adapters can be mounted: Fig. 3 Fig. 3A Megaspin 300 a) Back-off screw B and remove Megaspin 300P a) Unscrew rod B. threaded end-piece A.

  • Page 8: Controls And Components

    8 - 0068 4 - CONTROLS AND COMPONENTS 4.1 - BRAKE PEDAL This pedal allows the operator to hold the wheel when fitting the counterweights. It must not be actuated during the measuring cycle. 4.2 - PNEUMATIC LOCKING PEDAL (Version P) This pedal allows releasing the device fastening the wheel on the adapter.

  • Page 9: Control Panel And Display

    0068 - 9 4.6 - CONTROL PANEL AND DISPLAY Fig. 4 FINE inch MENU STOP USER 2 ALU M START STOP HOME ENTER Digital readouts, AMOUNT OF UNBALANCE Push button, cycle start on inside/ outside Emergency stop push button Indicators, UNBALANCE POSITION on inside/ Push buttons, manual DISTANCE/ outside DIAMETER/WIDTH setting...

  • Page 10: Functions Menu Control

    10 - 0068 4.6.1 - FUNCTIONS MENU CONTROL...

  • Page 11: Indications And Use Of The Balancing Machine

    0068 - 11 5 - INDICATIONS AND USE OF THE BALANCING MACHINE 5.1 - DOUBLE OPERATOR PROGRAM This program allows memorizing the dimensions of two types of wheels. Thus two operators can work simultaneously on two different vehicles using the same balancing machine. The system memorizes two programs with the various preset dimensions.
  • Page 12 12 - 0068 Fig. 6 - Preset the nominal width, which is normally stamped on the rim, or else measure the width with the calliper gauge (standard accessory). 5.2.1.1 - "AUTOMATIC WIDTH" OPTION - Move the gauges simultaneously into measuring position. For distance + diameter gauge, see fig.

  • Page 13: Alu-M Wheel

    0068 - 13 5.2.1.2 ALU-M WHEEL (correction from the inside for two balancing planes with direct calibration): Fig. 7 After the measurement for inside FI as shown in fig. 7, pull out the gauge further for memorizing the data for outside FE; hold the position for at least 2 seconds. Select pos.

  • Page 14: Recalculation Of The Unbalance Values

    14 - 0068 - Wheel ALU-M - Measure the dimensions according to the diagram below. Fig. 9 14 mm Reading 1 - 2 PRESETTING: Select the dimension to be preset by pressing N.B.: When the outer diameter is not preset ( ) the system automatically calculates: outer diameter ( ) = 0.8 x inner diameter (...

  • Page 15: Result Of Measurement

    0068 - 15 5.4 - RESULT OF MEASUREMENT Fig. 10 Inside correction Outside correction After performing a balancing spin, the amounts of unbalance are shown on the displays. Displays with LED's 3- 4 lit up indicate the correct angular wheel position to mount the counterweights (12 o'clock position).

  • Page 16: Resolution Of The Unbalance (Split)

    16 - 0068 5.4.2. - RESOLUTION OF THE UNBALANCE (SPLIT) SPLIT only has meaning in the case of static unbalance or ALU-M on outside. It serves for hiding any stick-on unbalance correction weights behind the rim spokes. PRESETTING: -Number of spokes (3 to 12) - RISULTS : - Move a spoke at random to the 12 o'clock position - Split unbalance not in position, bring into position 1...

  • Page 17: Unbalance Optimization

    0068 - 17 5.4.3 - 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 exceeding 30 g. - It improves the residual eccentricity of the tyre. - Mark with chalk a reference point on the adapter and rim.

  • Page 18: Alu And Static Modes

    18 - 0068 5.4.4 - ALU AND STATIC MODES From the Measurement screen, press button to select the type required. The 5-LED displays show the position where to apply the weights. If a spin has already been performed, the processor automatically recalculates, for each change of mode, the amounts of unbalance according to the new setting.

  • Page 19: Set-Up

    0068 - 19 6 - SET UP 6.1 - SELF-DIAGNOSTICS MENU DISPLAY TEST All displays, readouts and LED's 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 rev.

  • Page 20: Self-Calibration

    20 - 0068 6.2. - SELF-CALIBRATION For machine self-calibration proceed as follows: - Mount an iron wheel of "average" size on the shaft, example: 6''x14'' (±1''). It does not have to be a perfectlybalanced wheel. - Preset the exact dimensions of the wheel mounted. CAUTION!! Presetting of incorrect dimensions would mean that the machine is not correctly calibrated, therefore all subsequent measurements will be incorrect until a new self-calibration is...

  • Page 21: Automatic Gauges

    0068 - 21 6.3 - AUTOMATIC GAUGES 6.3.1 - RIM DISTANCE GAUGE - Pull out the distance gauge in position 0 and, keeping it quite still, press - Move the distance gauge to position 15 and press CORRECT CALIBRATION - Return the gauge to rest position - The wheel balancer is ready for operation N.B.

  • Page 22: Width Gauge (Option)

    22 - 0068 6.3.3 - WIDTH GAUGE (OPTION) MENU - Move the width gauge tip into the position indicated in fig. 13Aand keeping it still, press - Move the gauge tip into the position shown in fig. 13A and keeping it still, press CORRECT CALIBRATION - Return the gauge to rest position...

  • Page 23: Errors

    0068 - 23 7 - ERRORS During machine operation, various causes of faulty operation could occur. If detected by the microprocessor, they appear on the display as follows: ERROR MEANING No rotation signal. Could be caused by faulty position transducer, or something preventing the wheel from turning.

This manual is also suitable for:

Megaspin 300p

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