Lagler HUMMEL Operation, Maintenance And Safety Manual
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Lagler HUMMEL Operation, Maintenance And Safety Manual

Belt sanding machine hummel
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BELT SANDING MACHINE HUMMEL
®
Operation,
Maintenance, Safety
Translation of original operating instructions
for the belt sanding machine
1
®
HUMMEL
<
mg/m³

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Summary of Contents for Lagler HUMMEL

  • Page 1 BELT SANDING MACHINE HUMMEL ® Operation, Maintenance, Safety Translation of original operating instructions for the belt sanding machine ® HUMMEL < mg/m³...
  • Page 2 Dust bag Guide tube ON/OFF switch Switch box Drive motor Operating lever, drive unit Safety guard Bracket Belt guard Lateral wheel Bumper felt Side cover Fig. 1 Assemblies of the HUMMEL ® belt sanding machine HUMMEL ® 01.12.2012 English / Englisch...

  • Page 3: Table Of Contents

    Preparing the machine for operation ......................... 12 Connecting the power cable ............................15 Switching on the machine ............................16 Switching off the machine ............................18 Working with the HUMMEL ® ............................19 Application tips ................................19 Changing the sanding belt ............................20 Regulating the sanding drum pressure ........................

  • Page 4: Introduction

    . We wish you a great deal of Figure 1 (page 2) shows the most important assemblies which ® ® success with your HUMMEL . All LÄGLER make up the HUMMEL ® . We recommend that you take some time products are subjected to a thorough to become familiar with the machine.

  • Page 5: Hazard Warnings And Safety Instructions

    • Do not carry or pull by the machine by the cable! Do not pull on the cable to remove the plug from the socket! Protect the cable against heat, oil and sharp edges! ® HUMMEL 01.12.2012 English / Englisch...
  • Page 6 - machines with motor for mains voltage 220 V or 230 V: 3 wires with wire cross-sections of at least 2.5 mm² - machines with motor for mains voltage 400 V: 5 wires with wire cross-sections of at least 1.5 mm² ® HUMMEL 01.12.2012 English / Englisch...
  • Page 7 The power plug must be removed from the socket when the machine is switched off! • Make sure that ON/OFF switch is not set to ON when connecting the machine to the mains supply! ® HUMMEL 01.12.2012 English / Englisch...

  • Page 8: General Safety Instructions

    ® • Only use tools, accessories and spare parts from LÄGLER ® for the HUMMEL Section 11, Spare parts)! There is no guarantee for external parts or liability for damage caused by them! HEALTH RISK caused by noise: •...
  • Page 9 Do not use the machine if it cannot be started or switched off by using its switch. • Store your machines safely! Store your unused machines in a dry, closed location out of the reach of children! ® HUMMEL 01.12.2012 English / Englisch...

  • Page 10: Technical Data

    (measured as per the testing requirements GS-HO-15 of German statutory accident insurance DGUV) Workplace-related noise emission values ......76 dB(A) Measurement uncertainty constant of the noise emission values ............4 dB (A) Vibration total value a ............< 2.5 m/s² (measured at the handle) ® HUMMEL 01.12.2012 English / Englisch...
  • Page 11 (after daily use, exchange every 1 - 2 years) • Guide rollers at the drive unit • Guide roller at the machine housing • Side cover • Dust bag • O-ring used as a strain relief • Back wheel • Lateral wheels ® HUMMEL 01.12.2012 English / Englisch...

  • Page 12: Commissioning

    COMMISSIONING Commissioning This section describes the procedure for commissioning the HUMMEL ® on site. In order to exclude the possibility of damage and malfunctions, it is essential to proceed in the sequence outlined below. CAUTION! RISK OF INJURY and RISK OF PROPERTY DAMAGE:...
  • Page 13 Position the sanding belt on the tensioning roller Fig. 10 Push the sanding belt far enough over the sanding of the drive unit. drum and tensioning roller so that the sanding drum is fully covered by the sanding belt. ® HUMMEL 01.12.2012 English / Englisch...
  • Page 14 Never reach into the area of the sanding belt while it is running! • During the test run, ensure that no objects randomly positioned in the vicinity can be picked up by the sanding belt and no other persons are in the danger area! ® HUMMEL 01.12.2012 English / Englisch...

  • Page 15: Connecting The Power Cable

    (Fig. 16). Plug in the extension cable to a adequately fused mains socket with PE contacts. Fig. 16 Mount the strain relief ring on the cable support. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 16: Switching On The Machine

    -START- (Fig. 19) and release the switch button after the motor has reached its full speed. The switch button will then automatically move to position -1- (Fig. 20). Fig. 20 Release the switch button. The button turns automatically in position -1-. ® HUMMEL 01.12.2012 English / Englisch...
  • Page 17 Switching on the machine). Once the motor is up to operating temperature, switch off the machine ( Section 4.4, Switching off the machine) and mount the V-belts ( Section 7.10, Replacement and tensioning of V-belts). ® HUMMEL 01.12.2012 English / Englisch...

  • Page 18: Switching Off The Machine

    Do not store the unused machine on the sanding drum! Otherwise the sanding media can cause scratches on the ground or the sanding drum can be damaged! Fig. 25 Secure the machine against sliding! ® HUMMEL 01.12.2012 English / Englisch...

  • Page 19: Working With The Hummel

    WORKING WITH THE HUMMEL ® ® Working with the HUMMEL 5.1 APPLICATION TIPS WARNING! ATTENTION! RISK OF DEATH from electrical shock: • Always sand from left to right! This ensures that the left- The machine may never be used for wet...

  • Page 20: Changing The Sanding Belt

    WORKING WITH THE HUMMEL ® 5.2 CHANGING THE SANDING BELT Depending on the type of sanding process you wish to perform, different abrasive grit grades can be selected. In order to change the abrasive, proceed as follows: Lift the sanding drum off the floor by turning the lowering lever at the handle upwards (Fig.
  • Page 21 WORKING WITH THE HUMMEL ® Position the sanding belt so that it evenly covers the sanding drum (Fig. 31, A). WARNING! RISK OF FIRE from the formation of sparks while sanding: Position B of the sanding belt in Fig. 31 provoke sparking during...

  • Page 22: Regulating The Sanding Drum Pressure

    WORKING WITH THE HUMMEL ® After the checking and setting of the sanding belt tracking mount the side cover (Fig. 33). It is now possible to execute the next sanding process with the machine. 5.3 REGULATING THE SANDING DRUM PRESSURE The lever can be used to set three different drum pressure stages.

  • Page 23: Emptying The Dust Bag

    Damaged dust bags must be replaced with new ones! ® ® Use exclusively original LÄGLER dust bags for the HUMMEL (Part number in Section 11, Spare parts)! Switch off the machine and pull the power plug out of the socket!

  • Page 24: Transport And Storage

    During transport or storage, the machine can also be firmly lashed to the bottom part of the supplied transport crate using two belts (Fig. 38)! This will prevent damage to the sanding drum and stop the wheels becoming out of round! ® HUMMEL 01.12.2012 English / Englisch...

  • Page 25: Dismantling The Machine Before Transportation

    (2.). Fig. 42 Pull the power plug out of the socket and open Fig. 43 Release the tension of the V-belts by turning the the belt guard. eye bolt at the motor counterclockwise. ® HUMMEL 01.12.2012 English / Englisch...
  • Page 26 Pull the guide tube out of the machine housing (Fig. 48, 3.). Fig. 46 Remove the motor from the machine housing. Fig. 47 Press the lowering lever at the handle downwards to lower the sanding drum onto the floor. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 27: Assembly After Transportation

    TRANSPORT AND STORAGE 6.2 ASSEMBLY AFTER TRANSPORTATION ® When assembling the HUMMEL after transport, adhere to the following sequence of work steps: Press the lowering lever at the handle downwards (Fig. 49, 1.). Insert the guide tube into the opening in the machine housing and at the same time insert the upper rod into the lower rod (Fig.

  • Page 28: Storage

    When storing for long periods, place the machine on the bottom part of the supplied transport crate (Fig. 38)!This will prevent damage to the sanding drum and stop the wheels becoming out of round! Fig. 56 Close the belt guard. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 29: Maintenance Work And Replacement Of Wearing Parts

    Performing regular maintenance work will help to retain the value of the machine and is also in the interests of your own safety. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 30: Cleaning And Care Instructions

    Check that the lowering rod linkage is easy running. • Check the dust suction system and the dust bag for leaks and damages. • Carry out a visual inspection of the electrical equipment (extension cable, plug, couplings). ® HUMMEL 01.12.2012 English / Englisch...
  • Page 31 Remove the operating lever of the drive unit by unscrewing (Fig. 61). Fig. 59 Remove the sanding belt. Fig. 60 Press the operating lever of the drive unit Fig. 61 Unscrew the operating lever of the drive unit. downwards. ® HUMMEL 01.12.2012 English / Englisch...
  • Page 32 1 – 2 years, otherwise every 3 – 4 years ( Section 7.6, Replacement of sanding drum and Section 7.7, Replacement of tensioning roller). Fig. 64 The two guide rollers at the drive unit must be rotatable easily! Otherwise they must be replaced! ® HUMMEL 01.12.2012 English / Englisch...

  • Page 33: Lubrication

    The sanding belt tracking must be checked every time the sanding belt is exchanged, but at least once a day! CAUTION! RISK OF INJURY and RISK OF PROPERTY DAMAGE: During the test run, the sanding drum must be raised off the floor (Fig. 66)! ® HUMMEL 01.12.2012 English / Englisch...
  • Page 34 Fig. 69 Three-phase AC motor: Hold the switch button for around 2 seconds in -START- position and control the sanding belt tracking at the same time. After this turn the switch button in position -0-. ® HUMMEL 01.12.2012 English / Englisch...
  • Page 35 (Fig. 72, 1.) and adjust the tensioning roller with the screw (Fig. 72, 2.): A Rotation clockwise: sanding belt runs to the front B Rotation counterclockwise: sanding belt runs to the back ® HUMMEL 01.12.2012 English / Englisch...

  • Page 36: Checking The Machine Setting

    Correction of machine setting is performed as follows: Switch off the machine and pull the power plug out of the socket! ® HUMMEL 01.12.2012 English / Englisch...
  • Page 37 If the machine is sanding more on side C, the wheel must be adjusted in the direction of D. now correctly adjusted. If not, the process will have to be repeated. Fig. 76 Release the screw on the right-hand wheel clamp. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 38: Checking The Dust Pick-Up

    Never use a steel hammer! clockwise (left-hand thread) and unscrew the drum nut (Fig. 79). If necessary, take a soft hammer to help you loosen the nut. Never use a steel hammer! ® HUMMEL 01.12.2012 English / Englisch...

  • Page 39: Replacement Of Tensioning Roller

    (Fig. 83)! Fig. 83 Insert the new tensioning roller, ensuring that the surfaces on the shaft ends are pointing upwards! ® HUMMEL 01.12.2012 English / Englisch...
  • Page 40 This cause negative effects to the sanding result! Remount the drive unit ( Section 7.1.1, Dismantling and cleaning of drive unit). Check the sanding belt tracking ( Section 7.3.1, Checking the sanding belt tracking). ® HUMMEL 01.12.2012 English / Englisch...

  • Page 41: Replacement Of Rear Wheel

    (Fig. 89). Fig. 89 Release the screw and pull the complete rear wheel assembly out of the machine housing. When mounting, align the clamping surface of the tail axle towards the screw. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 42: Replacement Of Lateral Wheels

    Lift the sanding drum off the floor by turning the Lift the sanding drum off the floor by turning the lowering lowering lever at the handle upwards. lever at the handle upwards (Fig. 92). ® HUMMEL 01.12.2012 English / Englisch...
  • Page 43 Release the tension of the V-belts by turning the eye bolt at the motor counterclockwise. Fig. 96 Open the clamping screw of the belt tensioner (1.) Fig. 97 Remove the suction V-belt. and release the tension of the suction V-belt (2.). ® HUMMEL 01.12.2012 English / Englisch...
  • Page 44 First tighten the lower nut (Fig. 101, 1.), then the upper nut (3/8“) (2.). (Fig. 101, 2.) at the eye bolt at the motor. Fig. 101 First tighten the lower nut (1.), then the upper nut (2.) at the eye bolt at the motor. ® HUMMEL 01.12.2012 English / Englisch...
  • Page 45 (1. and 2.). Correct tension of the suction V-belt: The V-belt should be compressed approx. 1 cm (3/8“) (3.). Fig. 105 Tighten the two motor nuts. Fig. 106 Close the belt guard. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 46: Regular Maintenance And Testing In Accordance With Accident Prevention Regulations

    (= working equipment), the ment all of this. German Ordinance on Industrial Safety and Health (BetrSichV) must be complied with in Germany! ® HUMMEL 01.12.2012 English / Englisch...
  • Page 47 Equipment on Construction Sites” (BGI 608) for more details. Type of inspection The proper condition of the machines and equipment must be inspected. Inspector Electricians or persons trained in electrical engineering when using suitable measurement and inspection devices. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 48: Causes Of Faults

    The motor must cool off and the causes for the problems named above must be remedied. • An electrical component of the machine (e.g. capacitors, contactor, cable, switch) is defective and must be inspected by a qualified electrician and replaced if necessary. ® HUMMEL 01.12.2012 English / Englisch...
  • Page 49 Section 7.10, Replacement and tensioning of V-belts). • The sanding pressure do not suit to the grit grade of the sand- ing belt and must be corrected ( Section 5.3, Regulating the sanding drum pressure). ® HUMMEL 01.12.2012 English / Englisch...
  • Page 50 The suction V-belt is not tight enough and must be tightened or damaged and must be replaced ( Section 7.10, Replace- ment and tensioning of V-belts). • The side cover is not mounted at the machine and must be mounted ( Fig. 13). ® HUMMEL 01.12.2012 English / Englisch...
  • Page 51 A pulley is dirty or worn-out and must be cleaned or replaced. • The lowering rod linkage is running poorly, catching on something or getting stuck. Free movement is necessary. • The machine is being moved too slowly and must be sped up. ® HUMMEL 01.12.2012 English / Englisch...
  • Page 52 - additional weight is on the machine, - the rear part of the machine is lifted on with the handle while sanding, - the lowering lever at the handle is pressed downwards while sanding. ® HUMMEL 01.12.2012 English / Englisch...

  • Page 53: Circuit Diagrams

    Hi = auxiliary winding operation otor 2.2 kW 02.03.1999 230 V / 50 CPS HUMMEL + ELF: ® 2,2 kW / 230 V / 50 CPS single-phase AC motor EUGEN LÄGLER GMBH Phone: 0049 - 7135 - 98 90 - 0 e-mail: info@laegler.com...
  • Page 54 2.2 kW 220 + 230 V / 60 CPS 17.12.2009 2.2 kW / 220 V / 60 CPS HUMMEL + ELF: ® single-phase AC motor 2.2 kW / 230 V / 60 CPS EUGEN LÄGLER GMBH Phone: 0049 - 7135 - 98 90 - 0 e-mail: info@laegler.com...
  • Page 55 2.9 kW 220 V / 60 CPS 02.03.1999 USA version 2.9 kW / 220 V / 60 CPS HUMMEL + ELF: ® single-phase AC motor USA version EUGEN LÄGLER GMBH Phone: 0049 - 7135 - 98 90 - 0 e-mail: info@laegler.com...

  • Page 56: Spare Parts

    SPARE PARTS ® HUMMEL 01.12.2012 English / Englisch...
  • Page 57 100.60.01.100 Holder for wall-protecting roller 0934.1006.000 100.60.02.200 Wall-protecting roller 0912.1006.030 Screw 000.43.10.252 Plastic bushing 7984.1008.016 Screw 100.44.00.100 Safety guard, complete 100.44.01.100 PVC tube 100.01.03.100 Side cover 100.01.08.200 Collar nut, complete 100.01.30.100 Guide roller, complete ® HUMMEL 01.12.2012 English / Englisch...
  • Page 58 SPARE PARTS ® HUMMEL 01.12.2012 English / Englisch...
  • Page 59 SPARE PARTS Item Part number Description ® 100.00.80.105 Dust bag HUMMEL 000.17.21.081 Fixing cap 0125.1008.000 Washer 000.20.56.351 Ball knob 100.20.18.200 Lever 0471.0015.000 Circlip 0580.1008.000 Thread eye 0980.1008.000 00.000.41.002 Strain relief ring 100.20.26.100 Cable support, complete 100.20.01.200 Guide tube 102.20.01.200 Guide tube USA 100.20.00.200...
  • Page 60 SPARE PARTS ® HUMMEL 01.12.2012 English / Englisch...
  • Page 61 7984.1008.012 Screw 100.18.00.300 Rear wheel, complete 0934.1008.000 100.18.18.300 Tail axle housing, complete 100.18.29.105 Rear wheel (from year of manufacture 2002) 100.18.09.200 Rear wheel (up to year of manufacture 2001) 0912.1008.040 Screw 0914.0008.012 Grub screw ® HUMMEL 01.12.2012 English / Englisch...
  • Page 62 SPARE PARTS up to May 2000 from May 2000 Please state the machine number with each order! ® HUMMEL 01.12.2012 English / Englisch...
  • Page 63 Parallel key 100.02.01.100 Sanding shaft 6885.0606.040 Parallel key 100.02.04.105 Spacer ring 100.02.03.105 Slide ring 000.11.35.102 Shaft seal 120.40.00.100 Sanding drum HUMMEL ® ® 120.41.00.100 Sanding drum HUMMEL , hard rubber cover 100.02.06.100 Nut, left-hand thread 100.45.45.100 Pressure spring 0472.0052.000 Circlip 6205.0025.205...
  • Page 64 SPARE PARTS ® HUMMEL 01.12.2012 English / Englisch...
  • Page 65 Lamp red for three-phase AC motor 000.65.20.220 Relay for three-phase AC motor 100.65.14.105 Sealing plate 000.65.12.091 Discharging resistor 000.68.60.207 Nut (from year of manufacture 2008) 000.68.60.163 Nut (up to year of manufacture 2007) 100.65.47.100 Cover with seal ® HUMMEL 01.12.2012 English / Englisch...
  • Page 66 SPARE PARTS ® HUMMEL 01.12.2012 English / Englisch...
  • Page 67 000.01.10.011 Foldable earmuff type MUSIMUFF with FM radio 000.01.10.021 Foldable earmuff type POCKET 000.01.65.020 Safety switch PRCD-S (for German mains supply) 100.00.55.100 Carrying handle HUMMEL ® 701.10.00.100 Impact tool 702.00.00.200 Parquet layer tool ZUGEISEN, small 703.00.00.200 Parquet layer tool ZUGEISEN, broad 720.10.00.200...
  • Page 68 NOTES HUMMEL ® 01.12.2012 English / Englisch...
  • Page 69 NOTES HUMMEL ® 01.12.2012 English / Englisch...
  • Page 70 NOTES HUMMEL ® 01.12.2012 English / Englisch...

  • Page 71: Service Passport

    Signature and company stamp Date of test and Date of test and Date of test and maintenance work: maintenance work: maintenance work: Signature and company stamp Signature and company stamp Signature and company stamp ® HUMMEL 01.12.2012 English / Englisch...

  • Page 72: Eu Declaration Of Conformity

    Generic denomination: Floor sanding machine Function: Dry sanding of wooden floors ® Model: HUMMEL Serial number: See type plate Commercial name: Belt sanding machine fulfils all the relevant provisions of the specified above European Directive.

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