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MANUAL
HTC GL 270 HD
Translation of manual in original language
www .htc-floorsystems.com/support

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Summary of Contents for HTC GL 270 HD

  • Page 1 MANUAL HTC GL 270 HD Translation of manual in original language www .htc-floorsystems.com/support...
  • Page 2: Contact Information

    Always specify the model and serial number when asking questions about your product. Trademarks HTC is a trademark owned by HTC Sweden AB. Other names and products mentioned in this manual may be registered trademarks owned by the relevant companies.
  • Page 3: Ec Declaration Of Conformity

    EC Declaration of conformity Manufacturer: HTC Sweden AB Box 69 SE-614 22 Söderköping Sweden +46 (0)121-29400 Type of equipment: Grinding Machine Make: Trademark: HTC 270 HD Year of manufacture: See machine name plate Serial number: See machine name plate As the manufacturer, we hereby declare under our sole responsibility that the above product with serial numbers from 2012 and onward conforms to the applicable regulations in Directives MD 2006/42/EC, EMC 2004/108/EC and LVD 2006/95/EC.
  • Page 5: Table Of Contents

    HTC GL 270 HD Table of contents Introduction 1.1 General ................1.2 Liability ................1.3 Manual ................1.3.1 Safety explanations - explanation of symbols ..1.4 Transportation ..............1.5 On delivery ..............1.6 Unpacking the equipment ..........1.7 Machine name plate ............
  • Page 6 Table of contents HTC GL 270 HD Operation 4.1 General ................4.2 Handle setting ..............4.3 Access to grinding tools ..........4.4 Fitting and replacing grinding tools ........4.4.1 Fitting grinding tools ........... 4.4.2 Changing grinding tools ........4.5 Preparations for dry grinding ...........
  • Page 7 HTC GL 270 HD Table of contents Environment 8.1 Chassis ................8.2 Grinding head ..............8.3 Electrical system ............. 8.4 Recycling ................. Warranty and CE marking 9.1 Warranty ................9.2 CE marking ..............
  • Page 8 Table of contents HTC GL 270 HD...
  • Page 9: Introduction

    Introduction Introduction General The machine models in HTC's Greyline series are grinding machines that can be used to grind, strip and clean all types of floors. The area of application for the machine depends on the choice of tool. Read the manual carefully, so you are totally familiar with the machine before you start to use it.
  • Page 10: Transportation

    Introduction HTC GL 270 HD Note! This symbol means Note! and indicates a potential risk of material damage in the event of incorrect use of the machine. If you see this symbol next to a section of text, you must pay particular attention when reading through the text and not carry out any operations of which you are unsure.
  • Page 11: Unpacking The Equipment

    HTC GL 270 HD Introduction Unpacking the equipment Warning! Read carefully through the safety instructions and user manual before using the equipment. • Check the packaging and equipment carefully on delivery for any possible transportation damage. If there is any sign of damage, contact your retailer and report it.
  • Page 12: Handling And Storage

    Always use hearing protection when using the machine. 1.9.1 Hand and arm vibrations Hand and arm-weighted vibration level [m/s²] for HTC GL 270 HD have been measured using equipment approved in accordance with ISO 5349-1:2001. Measurement uncertainty for the measuring equipment is given as ±2%.
  • Page 13: Safety

    HTC GL 270 HD Safety Safety General This chapter contains all the warnings and notes that must be considered for the HTC GL 270 HD. Warnings Warning! The machine may only be used or repaired by personnel who have received the appropriate theoretical and practical training and who have read this manual.
  • Page 14: Notes

    Safety HTC GL 270 HD Warning! During grinding, the tools become very hot. Tip the machine back and allow it to stand for a short while. Use protective gloves when removing the tools. Warning! Disconnect the electrical supply when cleaning, changing tools or repairing the machine.
  • Page 15 HTC. Note! Only original tools and spare parts from HTC may be used for the machine. Otherwise, neither the CE marking nor the warranty will be valid. Note! For the CE marking to be valid, the instructions in this manual must be followed.
  • Page 16: Machine Description

    The machine has a connection for an external suction hose, which is used during dry grinding. The machine can be easily equipped with a large number of tools, depending on the material to be ground. For the different tools, see HTC's Product Catalogue under the Grinding Guide tab.
  • Page 17 HTC GL 270 HD Machine description Figure  3-1. The front of the machine Control cabinet Lifting eye for the machine Plug Motor Lifting handles for grinding head Floating grinding cover Wheels Suction hose Connection for vacuum Quick release coupling motor cable...
  • Page 18 Machine description HTC GL 270 HD Figure  3-2. The machine's rear Control panel Adjustable handle Connection for vacuum Locking mechanism for handle adjustment Locking bolts/quick release grinding head...
  • Page 19: Description Of Controls - Control Panel

    HTC GL 270 HD Machine description Description of controls - Control panel The picture below shows the machine's control panel: Figure  3-3. Control Panel O/I- Start/stop the machine. Turn the knob to "I" to start the machine. Hold the knob in the start position "I" for ca 1-2 seconds.
  • Page 20: Operation

    The following section describes how to change tools and how to operate the grinding machine. This section does not deal with the technical aspects of grinding, such as selection of grinding tools, etc. For choice of tool, go to HTC's website www.htc-floorsystems.com for more information.
  • Page 21: Handle Setting

    HTC GL 270 HD Operation Warning! Always ensure that the machine's connection cable is hanging freely without any tensile loading. Otherwise, the cable, coupling socket and plug may be damaged, which can cause both physical damage and personal injury. Note! The machine must be connected to an earth fault breaker suitable for electronic frequency convertor operation.
  • Page 22: Access To Grinding Tools

    Operation HTC GL 270 HD Working position - the working height can be adjusted to one of several positions with the machine's adjustable handle Warning! Always ensure that the machine's handle is in the upright position when the machine is tipped to enable access beneath the grinding head. Otherwise, there is a risk that the machine could fall back and cause personal injury.
  • Page 23: Fitting Grinding Tools

    HTC GL 270 HD Operation 4.4.1 Fitting grinding tools Slide the grinding tool diagonally, from above, down into the appropriate guide slot on the tool holder, see Figure 4-2, page 15. Then push the tool fully into the guide slot. Figure  4-2. Fitting grinding tools Lock the grinding tool into the tool holder by giving it a few light taps with a hammer, see Figure 4-3, page 15.
  • Page 24: Changing Grinding Tools

    Operation HTC GL 270 HD 4.4.2 Changing grinding tools Remove the grinding tool by giving it a few light taps with a hammer so the locking mechanism releases, see Figure 4-4, page 16. Then draw the tool up out of the guide slot.
  • Page 25: Preparations For Dry Grinding

    HTC GL 270 HD Operation Preparations for dry grinding Note! Make sure that the floating cover can move freely within its movement margins and that the cover rests on the floor before starting the machine. Connect a dust extractor to the machine. For available models of dust extractors, go to HTC's website www.htc-floorsystems.com...
  • Page 26: Attach The Grinding Head To The Chassis

    Operation HTC GL 270 HD Slowly pull the chassis back from the grinding head. 4.6.2 Attach the grinding head to the chassis Push the chassis's fastener into the quick release and make sure that the red locking hooks drop down, so the safety pins can be put in place.
  • Page 27: Edge Grinder Kit (Accessory)

    Edge grinder kit (accessory) By attaching the edge grinder kit accessory to the GL 270 HD, there is the option to use the machine as an edge grinding machine. The attachment is done in a few easy steps, and with just a few parts, but it provides increased flexibility in the use of the machine.
  • Page 28: Change To Edge Grinder Cover

    Operation HTC GL 270 HD 4.9.1 Change to Edge Grinder Cover Perform the change in the order below. The numbers in Figure 4-6, page 20 correspond to the numbers in the procedure below: Loosen the lower screw and remove the tool holder.
  • Page 29: Fitting The Edge Grinder Adapter

    HTC GL 270 HD Operation Replace the grinding cover with the edge grinding cover and assemble all of the parts. Note! Check that all the parts are correctly attached and that all the screws are tightened properly before the machine is started.
  • Page 30: Positions For Edge Grinder Adapter

    Operation HTC GL 270 HD Lock the edge grinder adapter in the chassis using the new, longer, locking bolts that are enclosed with the edge grinder kit. Figure  4-8. Attaching the edge grinder adapter, steps 4 - 5 Lock the locking bolts with the safety pins.
  • Page 31: Place In The Centre Position

    HTC GL 270 HD Operation Turn the hoop 180°, see position 2 in Figure 4-9, page 22. Then firmly lock the locking knob (Figure 4-10, page 23). Figure  4-10. Hoop in right-hand position 4.9.4 Place in the centre position Screw the locking knob out completely. Then firmly lock the locking knob.
  • Page 32: Maintenance And Repairs

    Maintenance and repairs HTC GL 270 HD Maintenance and repairs General We recommend regular inspections of all seals. Warning!  Disconnect the electrical supply when cleaning, carrying out maintenance, changing tools or repairing the machine. Warning! Use protective equipment as shown on the labelling in the machine.
  • Page 33: Every Month (Or After 100 Hours)

    Test run and listen for any dissonance from the bearings. Repairs Any repairs that may be required must be carried out by a HTC authorised service centre. Contact your retailer if your machine requires servicing. For contact information, see Contact Information at the end of the manual.
  • Page 34: Troubleshooting

    Troubleshooting HTC GL 270 HD Troubleshooting General This chapter describes all the faults that may occur and how to deal with them. If the fault cannot be dealt with, or if there are other faults, contact your nearest retailer. See Contact Information at the front of the manual.
  • Page 35: The Machine Cannot Cope

    This removes any residue from the tools. • Check the tools. Ensure that the correct tools are used, that they are in working order and that they are correctly fitted. • Voltage drop. Check the cable area and the cable length comply with HTC's recommendations.
  • Page 36: Technical Data

    Technical data HTC GL 270 HD Technical data HTC GL 270 HD 230V 50HZ EU Part number 113570 Total machine weight 53 kg Weight, grinding head 37 kg Chassis weight 16 kg Grinding pressure 34 kg Grinding diameter 270 mm...
  • Page 37 HTC GL 270 HD Technical data Figure  7-1. Height and length of the machine in millimetres Figure  7-2. Width of the machine in millimetres...
  • Page 38: Environment

    Environment HTC GL 270 HD Environment HTC products are constructed mainly of recyclable metal and plastic. The main materials used are listed below. Chassis Machine part Material Waste management Chassis Metal Metal recycling Handle Plastic covered steel Metal recycling Wheels...
  • Page 39: Recycling

    Metal. ferrous, copper, plastic Electronic waste If possible, different metals should be separated. Recycling The machine or machine components can be returned to HTC Sweden AB. For recycling and scrapping of components, see the applicable national regulations for each country.
  • Page 40: Warranty And Ce Marking

    Warranty and CE marking Warranty This warranty only covers manufacturing defects. HTC bears no responsibility for damage that arises or occurs during transportation, unpacking or use. In no instance and under no circumstances shall the manufacturer be held responsible for damage and defects caused by incorrect use, corrosion or use outside the prescribed specifications.
  • Page 41 HTC GL 270 HD Warranty and CE marking...
  • Page 42 Head Office HTC Sweden AB HTC Floor system Ltd. Unit 4 kingston Business Park Box 69 614 22 Söderköping Dunfermline Court Maidstone Road Sweden Kingston Visiting address: Klevvägen 7 Milton Keynes 614 92 Söderköping MK10 0BY United Kingdom Sweden Phone: +44 (0)845 460 2500...

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