HTC GL 270 User Manual
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HTC GL 270 User Manual

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HTC GL 270/400/450/550
Translation of manual in original language

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Summary of Contents for HTC GL 270

  • Page 1 MANUAL HTC GL 270/400/450/550 Translation of manual in original language...
  • Page 2 The Greyline series...

  • Page 3: 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 4: Ec Declaration Of Conformity

    Sweden +46 (0)121-29400 Type of equipment: Grinding machine Make: Model: HTC GL 270 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 2010 onward conforms to the applicable regulations in directives MD 2006/42/EC, EMC 2004/108/EC and LVD 2006/95/EC.
  • Page 5 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: Model: HTC GL 400 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 2010 onward conforms to the applicable regulations in directives MD 2006/42/EC, EMC 2004/108/EC and LVD 2006/95/EC.
  • Page 6 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: Model: HTC GL 450 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 2010 onward conforms to the applicable regulations in directives MD 2006/42/EC, EMC 2004/108/EC and LVD 2006/95/EC.
  • Page 7 EC Declaration of conformity Manufacturer: HTC Sweden AB Box 69 SE-614 22 Söderköping Sweden +46 (0)121-29400 Type of equipment: Grinder Make: Model: HTC GL 550 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 2010 onward conforms to the applicable regulations in directives MD 2006/42/EC, EMC 2004/108/EC and LVD 2006/95/EC.

  • Page 9: Table Of Contents

    1.7 Machine name plate ............1.8 Handling and storage ............1.9 Vibration and noise ............1.9.1 Hand and arm vibrations ........1.9.2 HTC GL 270 ............1.9.3 HTC GL 400 ............1.9.4 HTC GL 450 ............1.9.5 HTC GL 550 ............
  • Page 10 Starting and stopping the machine ..... 4.7.2 Emergency stop switch ........4.8 Making operation easier ..........4.9 Edge grinder kit (accessory for HTC GL 270) ....4.9.1 Change to Edge Grinder Cover ......4.9.2 Fitting the Edge Grinder Adapter ......
  • Page 11 HTC GL 270/400/450/550 Table of contents Technical data 7.1 HTC GL 270 ..............7.2 HTC GL 400 ..............7.3 HTC GL 450 ..............7.4 HTC GL 550 ..............Environment Warranty and CE marking 9.1 Warranty ................9.2 CE marking ..............
  • Page 12 HTC GL Table of contents 270/400/450/550...

  • Page 13: 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 14: Transportation

    The following items are included in the delivery. Contact you retailer if anything is missing. • Grinding machine • Manual disc • Hammer EZ system • Face spanner (not for HTC GL 270 and HTC GL 400) • Lock spring tool holder • Allen key • Gloves • HTC Cap...

  • Page 15: Machine Name Plate

    HTC GL 270/400/450/550 Introduction • Check carefully to see if the packaging or machine has been damaged during delivery. If there is any sign of damage, contact your retailer and report it. Report packaging damage to the transport company as well.

  • Page 16: Vibration And Noise

    1.9.1 Hand and arm vibrations Hand and arm weighted vibration level [m/s²] for HTC GL 550 HTC GL 450 HTC GL 400 HTC GL 270 have been measured with equipment approved according to ISO 5349-1:2001. The measurement uncertainty for the measurement apparatus has been measured as +/- 2%.

  • Page 17: Htc Gl 550

    HTC GL 270/400/450/550 Introduction 1.9.5 HTC GL 550 Identified work conditions Measured values Daily permitted exposure [m/s²] (number of hours) Grinding/polishing Unrestricted Floor preparation (T-rex) 3,87 13,4 1.9.6 Sound pressure level This machine has been tested for noise in accordance with ISO 3741. For information on sound pressure levels, see the table in chapter Technical data, page ...

  • Page 18: Safety

    Safety 270/400/450/550 Safety General Information This chapter contains all the warnings and notes that should be considered for HTC GL 270, HTC GL 400, HTC GL 450, HTC GL 550. Warnings Warning! The machine may only be used or repaired by personnel who have received the requisite theoretical and practical training and who have read the user manual.

  • Page 19: Notes

    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 20 If the machine is stored in a cold (minus degrees) location, it must be placed in a warm (plus degrees) location for at least two hours before use. Note! The appropriated dust extractor must be used when dry grinding. Contact HTC for model recommendation. Note! The dust extractor's suction hose must be connected to the appropriate socket on the machine.

  • Page 21: 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 22 HTC GL Machine description 270/400/450/550 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 23: Description Of Controls - Control Panel

    HTC GL 270/400/450/550 Machine description 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 Description of controls – Control panel The picture below shows the machine's control panel: Figure ...
  • Page 24 HTC GL Machine description 270/400/450/550 EM-Stop - Emergency stop switch: Press the switch in an emergency to cut the power to the machine. Reset the emergency stop switch by turning it 45° clockwise.

  • Page 25: Usage

    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 tools, see HTC’s Product Catalogue under the Grinding Guide tab.

  • Page 26: Handle Settings

    HTC GL Usage 270/400/450/550 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. Warning! Connect the machine to an earth fault breaker.

  • Page 27: Access To Grinding Tools

    HTC GL 270/400/450/550 Usage 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 28: Fitting Grinding Tools

    HTC GL Usage 270/400/450/550 4.4.1 Fitting grinding tools 1. Slide the grinding tool diagonally from above down into the appropriate guide slot on the tool holder. Then push the tool fully into the guide slot, see Figure  4-2, page  Figure  4-2. Fitting grinding tools 2.

  • Page 29: Changing Grinding Tools

    1. Connect a dust extractor to the machine. For dust extractor models, see under the Suction System tab in the HTC Product Catalogue. Note! The dust extractor's suction hose must be connected to the appropriate socket on the machine.

  • Page 30: Separating And Assembling The Chassis And Grinding Head

    Ask someone to hold the chassis while you loosen the locking bolts and the quick release. 4.6.1 HTC GL 270 Remove the grinding head from the chassis as follows: 1. Undo the quick release coupling for the motor cable, see Figure ...

  • Page 31: Operation

    Always make sure that the safety pins are fixed correctly when transporting the machine. 4.6.2 HTC GL 400, GL 450 and GL 550 Remove the grinding head from the chassis as follows: 1. Undo the quick release coupling for the motor cable, see Figure ...

  • Page 32: Starting And Stopping The Machine

    HTC GL Usage 270/400/450/550 4.7.1 Starting and stopping the machine 1. Connect the electricity supply by plugging in the plug. 2. Make sure the emergency stop switch is reset. 3. Turn the Power knob to "I" to start the machine. Hold the knob in the start position "I"...

  • Page 33: Edge Grinder Kit (Accessory For Htc Gl 270)

    Edge grinder kit (accessory for HTC GL 270) By attaching the edge grinder kit accessory to the HTC GL 270, 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 34 HTC GL Usage 270/400/450/550 3. Remove the machine's grinding cover. 4. 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 35: Fitting The Edge Grinder Adapter

    HTC GL 270/400/450/550 Usage 4.9.2 Fitting the Edge Grinder Adapter Attach the edge grinding adapter in the order given below. The numbers in Figure  4-7, page  23 Figure  4-8, page  23 correspond to the numbers in the procedure below: 1. Remove the locking bolts from the chassis.

  • Page 36: Positions For Edge Grinder Adapter

    HTC GL Usage 270/400/450/550 4.9.3 Positions for Edge Grinder Adapter The grinding head can be attached in the right, left or centre position on the edge grinder adapter. This gives the option to grind edges and corners effectively from different directions.
  • Page 37 HTC GL 270/400/450/550 Usage • Screw the locking knob out completely. Then firmly lock the locking knob. Figure  4-11. Hoop in the centre position...

  • Page 38: Cleaning

    HTC GL Maintenance and repairs 270/400/450/550 Maintenance and repairs General Information We recommend regular inspections of all seals. Warning! Disconnect the electrical supply, when changing tools or repairing the machine. Warning! Use protective equipment such as safety shoes, safety goggles, protective gloves, breathing mask and ear muffs.

  • Page 39: Repairs

    Test run and listen for any dissonance from the bearings. Repairs Any repairs that may be required must be carried out by a HTC Service Centre, which has trained service personnel and uses HTC original parts and accessories. Contact your retailer if your machine requires servicing.

  • Page 40: General Information

    HTC GL Faultfinding 270/400/450/550 Faultfinding General Information This chapter describes 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 41: The Machine Grinds Unevenly

    You will find the recommended cable area under Technical data, page  6.1.6 The machine grinds unevenly (only applies to HTC GL 450 and HTC GL 550) Note! The machine must not be connected to the mains supply when carrying out the points below.

  • Page 42: Technical Data

    HTC GL Technical data 270/400/450/550 Technical data The tables and pictures below show the technical data and dimensions for the respective machine. HTC GL 270 HTC GL 270 HTC GL 270 HTC GL 270 HTC GL 270 110V 50Hz 110V 60Hz...
  • Page 43 HTC GL 270/400/450/550 Technical data Figure  7-1. Height and length of the machine in millimetres Figure  7-2. Width of the machine in millimetres...

  • Page 44: Htc Gl 400

    HTC GL Technical data 270/400/450/550 HTC GL 400 HTC GL 400 HTC GL 400 HTC GL 400 3x230V 50Hz 3x400V EU 3x460V US Part number 113124 113122 113123 Total machine weight 78 kg 78 kg 81 kg Weight, grinding head...
  • Page 45 HTC GL 270/400/450/550 Technical data Figure  7-3. Height and length of the machine in millimetres Figure  7-4. Width of the machine in millimetres...

  • Page 46: Htc Gl 450

    HTC GL Technical data 270/400/450/550 HTC GL 450 HTC GL 450 HTC GL 450 HTC GL 450 HTC GL 450 110V 50Hz 110V 60Hz 230V 50Hz 230V 60Hz Part number 113127 113155 113126 113144 Total machine weight 95 kg 95 kg...
  • Page 47 HTC GL 270/400/450/550 Technical data Figure  7-5. Height and length of the machine in millimetres Figure  7-6. Width of the machine in millimetres...

  • Page 48: Htc Gl 550

    HTC GL Technical data 270/400/450/550 HTC GL 550 HTC GL 550 HTC GL 550 HTC GL 550 3x230V 50Hz 3x400V EU 3x460V US Part number 113131 113128 113130 Total machine weight 131 kg 131 kg 131 kg Weight, grinding head...
  • Page 49 HTC GL 270/400/450/550 Technical data Figure  7-7. Height and length of the machine in millimetres Figure  7-8. Width of the machine in millimetres...

  • Page 50: Environment

    Plastic components can be recycled by sorting as hard plastics. Electronics can be deposited as electronic waste. Machines or machine components can also be sent back to HTC Sweden AB. For recycling and scrapping of components, see the applicable national regulations for each country.

  • Page 51: 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.

This manual is also suitable for:

Gl 400Gl 450Gl 550

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