HTC 950 RX Manual
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HTC 950 RX Manual

Htc 950 rx concrete floor grinders
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HTC 950 RX
Translation of manual in original language

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Summary of Contents for HTC 950 RX

  • Page 1 MANUAL HTC 950 RX Translation of manual in original language...

  • 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 950 RX 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 2004 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 950 RX Table of contents Introduction 1.1 General ................1.2 Responsibility ..............1.3 Manual ................1.3.1 Safety instructions – Explanation of symbols ..1.4 Transportation ..............1.5 On delivery ..............1.6 Unpacking the machine ........... 1.7 Machine name plate ............
  • Page 6 Table of contents HTC 950 RX Usage 4.1 General Information ............4.2 Handle settings ..............4.3 Wheel locking ..............4.4 Handling weights ............. 4.5 Access to grinding tools ..........4.6 Fitting and replacing grinding tools ........4.6.1 Fitting grinding tools ...........
  • Page 7 HTC 950 RX Table of contents Faultfinding 6.1 General Information ............6.1.1 The machine will not start ........6.1.2 The machine vibrates or wears the tool unevenly ............. 6.1.3 The machine is grinding at an angle ....6.1.4 The machine stops - manual operation ....
  • Page 8 Table of contents HTC 950 RX...

  • Page 9: Introduction

    Introduction General HTC 950 RX(R = Radio control, X = Four grinding discs) is a grinder that can be used to grind, strip, clean and polish concrete, natural stone and terrazzo floors. The machine's area of application depends on the choice of tool. You can easily mount and replace the tool, thanks to the EZchange patented tool system.

  • Page 10: Transportation

    Introduction HTC 950 RX Warning! This symbol means Warning! and indicates that incorrect use can result in material damage to the machine or accessories. If you see this symbol next to a section of text, you must be particularly careful when reading through the text and not carry out any stages of which you are unsure.

  • Page 11: Unpacking The Machine

    HTC 950 RX Introduction • Grinding machine • Manual • Locking key for control cabinet • Start key • Hammer EZ system • Splash guard • The radio control unit Unpacking the machine Warning! Read through the safety instructions and the manual carefully before use.

  • Page 12: Handling And Storage

    Always use ear muffs when using the machine. 1.9.1 Hand and arm vibrations Hand and arm weighted vibration level [m/s²] for HTC 950 RX 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 13: Sound Pressure Level

    HTC 950 RX Introduction 1.9.2 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 14: Safety

    Safety HTC 950 RX Safety General Information This chapter contains all the warnings and notes that should be considered for HTC 950 RX . 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 15: Notes

    Note! The machine may only be used to grind and polish natural stone, terrazzo, concrete, or other materials stated in this manual or that are approved by HTC. Note! Only original tools and spare parts from HTC may be used for the machine.
  • Page 16 Safety HTC 950 RX 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. Adjust the dust extractor to match the grinder's capacity.

  • Page 17: Machine Description

    Machine description General machine description HTC 950 RXIs designed for grinding in large spaces. It is used to grind, coarse grind, prepare and polish concrete, natural stone and terrazzo floors or other materials specified in this manual or material recommended by HTC. The machine is a perfect...
  • Page 18 Machine description HTC 950 RX Figure  3-1. The front of the machine Handle Handle lock Lifting eye Cover Motor Weights Grinding cover Splash guard Weight lock Water connection...

  • Page 19: Description Of Controls - Control Panel

    HTC 950 RX Machine description Figure  3-2. The machine's rear Control panel Electrical connection Extraction connection Weight lock Control cabinet Drive motor box Driving lock Description of controls – Control panel The picture below shows the machine's control panel:...
  • Page 20 Machine description HTC 950 RX Figure  3-3. Control panel Power - Standby indicator: Indicates that the machine's functions have been activated. Shines with a green glow when the start key (9) is turned to the right (On). Overload - Overload indicator: Lights up to indicate that the machine is using too much power.

  • Page 21: Description Of Controls - Radio Control Unit

    HTC 950 RX Machine description Note! Press the emergency stop switch (EM-Stop), if the machine accidentally starts to move to avoid personal injury and/or damage to the machine. Description of controls – Radio control unit The picture below shows the machine's radio control unit: Figure ...
  • Page 22 Machine description HTC 950 RX OFFSET (L - R)  - Turn the control to the left (L) or the right (R) to adjust for any tendency to veer. Start of radio communication - Button to start the radio communication between the radio control unit and the machine's receiver. It is used together with the EM-STOP button.

  • Page 23: 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 24: Handle Settings

    Usage HTC 950 RX Handle settings The appropriate working height is set with the help of the adjustable handle. The handle is locked with the handle lock on the handle cover, see Figure  4-1, page  16.  Figure  4-1. Locking the handle 1.

  • Page 25: Wheel Locking

    HTC 950 RX Usage 3. Make sure that the handle lock returns to the original position to guarantee that the handle is locked properly. Figure  4-2. The handle's position 1. Working position - always used when operating manually. It can also be used when driving via the radio control unit.

  • Page 26: Handling Weights

    Usage HTC 950 RX • Decouple the wheels by pulling the locking pin straight out, see Figure  4-3, page  Figure  4-3. Decouple the wheels • Turn the locking pin 90 and release it for the secured position, see Figure  4-4, page  Figure  4-4. Turn 90 degrees In order to couple the wheels to the drive motors, the same steps as above are carried out.
  • Page 27 HTC 950 RX Usage Tip! We recommend that the weights are folded up during grinding, since if the grinding pressure is too high and the tool is wrong, it can cause damage to the machine and the floor. Warning! There is a risk of crush injuries when the weights are folded back, since these are not locked in this position.

  • Page 28: Access To Grinding Tools

    Usage HTC 950 RX During the exchange of tools and when tools with a high removal rate (T-Rex™) are used, the weights should be folded back, see Figure  4-7, page  Figure  4-7. Weights folded back Access to grinding tools Warning! The tool becomes very hot during use. Tip the machine back and allow it to stand for a short while.
  • Page 29 HTC 950 RX Usage 1. Set the handle to the rear position - see Figure  4-2, page  17 2. Fold the weights back and place a foot against the frame, see Figure  4-8, page  Figure  4-8. Foot on weight...
  • Page 30 Usage HTC 950 RX 3. Tip the machine backwards carefully, until the weights reach the floor, see  Figure  4-9, page  Figure  4-9. Weights on the floor 4. Tip the machine further back, until the weight lock reaches the floor, see Figure ...

  • Page 31: Fitting And Replacing Grinding Tools

    HTC 950 RX Usage 5. Lift the machine up as far as you can, lock the weight in its up position. Then lower the machine completely to the floor, see  Figure  4-11, page  Figure  4-11. The machine rests on the floor...

  • Page 32: Fitting Grinding Tools

    Usage HTC 950 RX 4.6.1 Fitting grinding tools 1. Slide the grinding tool diagonally, from above, down into the appropriate guide slot on the tool holder, see Figure  4-12, page  24. Then push the tool fully into the guide slot. Figure  4-12. Fitting grinding tools 2.

  • Page 33: Changing Grinding Tools

    HTC 950 RX Usage 4.6.2 Changing grinding tools 1. Remove the grinding tool by giving it a few light taps with a rubber hammer so the locking mechanism releases, see Figure  4-14, page  25. Then draw the tool up out of the guide slot.

  • Page 34: Preparations For Wet Grinding

    Usage HTC 950 RX 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. Adjust the dust extractor to match the grinder's capacity.

  • Page 35: Manoeuvring Via The Control Panel

    HTC 950 RX Usage Manoeuvring via the control panel Tip! Drive the machine manually in difficult to navigate spaces. During manual driving, the operator pushes the machine forwards across the floor surface and manoeuvres it via the control panel, see Figure  3-3, page ...

  • Page 36: Overload

    Usage HTC 950 RX 5. Turn the start key to the right "On". 6. Start the grinding discs rotation by turning the knob to "Start". 7. Set the speed for the grinding discs using the Speed knob. 8. The machine has now started.

  • Page 37: Standby

    HTC 950 RX Usage 1. Loosen the battery cover on the radio control unit by screwing loose the screws on the cover. 2. Place two charged AA batteries 1.2 V NiMH, or alternatively two normal, non-rechargeable 1.5 V AA batteries in the battery space.

  • Page 38: Stop The Machine - Radio Control

    Usage HTC 950 RX 3. Zero the radio control unit by doing the following: - Turn the knob for speed (SPEED) to "min". - Set the control for driving forwards/backwards (FWD/RWD) in the middle position. - Turn the knob for the rotational speed (GRINDING SPEED) to 0%.

  • Page 39: Interrupted Radio Communication

    Note! If the error code "Jt" is shown on the display, immediately contact the HTC Service Centre for instructions. 4. Release the button to start radio communication. 5. Start the machine, for how this is done see under Start the Machine - Radio Control, page ...
  • Page 40 Usage HTC 950 RX Figure  4-15. Making operation easier Tip! By arranging the hose and cable as shown in the picture, you avoid disruptive stoppages caused by having to re-position the cable and hose.

  • Page 41: Maintenance And Repairs

    HTC 950 RX Maintenance and repairs 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 42: Daily

    Maintenance and repairs HTC 950 RX • Recharge/replace the batteries when L" appears in the display and blinks quick, see Figure  3-4, page  Procedure: 1. Stop the machine, see under Stop the machine - Radio control, page  2. Loosen the battery cover by screwing the screws out on the cover 3.

  • Page 43: Every Month (Or 100 Hours)

    Check the parts that wear on the radio control unit, e.g. the dust cover. 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 44: The Machine Will Not Start

    • Check the belts, replace if necessary. • Check the condition of the grinding holders. If the grinder holders need reconditioning, contact HTC for information about spare parts. 6.1.3 The machine is grinding at an angle • Recondition the grinding holder. See under The machine vibrates or wears the tool unevenly, page ...

  • Page 45: The Fuses Trip Frequently

    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 that the cable area meets HTC’s recommendations. Tip! Check the minimum recommended cable area before using an extension cord.

  • Page 46: Electronic Error Codes

    In the event of an error, the error code is shown in the display. The most common error codes that may occur on the frequency converter, in the control cabinet, are listed below. In the event of other errors, contact the HTC Service Centre. Schneider Electric ATV31...
  • Page 47 HTC 950 RX Electronic error codes Error Cause Action code tnF = Autotuning fault Check the motor. Replace the motor with an original May arise if the motor has been replaced motor. by the wrong motor, which is outside the norm values for the converter.
  • Page 48 Electronic error codes HTC 950 RX 7.2.1 Resetting the frequency converter 1. Turn off the machine by turning the start key to "Off". 2. Wait until the display goes out. 3. Reset the emergency stop switch. 4. Start the machine by turning the start key to "On".
  • Page 49 HTC 950 RX Electronic error codes Error code Cause Action Excess voltage Mains voltage too high or disturbance in the mains supply. Check the supply voltage, change socket. Under-voltage The connection cable is too long, poor connection or too many consumers connected to the mains.

  • Page 50: Technical Data

    Technical data HTC 950 RX Technical data The table below shows the machine’s technical data. HTC 950 HTC 950 RX HTC 950 HTC 950 RX EU EU Mist RX US RX US Mist Motor 15 kW 15 kW 15 kW...
  • Page 51 HTC 950 RX Technical data Figure  8-1. Width of the machine in millimetres Figure  8-2. Height and length of the machine in millimetres...
  • Page 52 Plastic components can be recycled by sorting as hard plastics. Electronics can be deposited as electronic waste. The machine or machine components can also be returned to HTC Sweden AB. For recycling and scrapping of components, see the applicable national regulations for each country.

  • Page 53: Warranty And Ce Marking

    Warranty and CE marking 10.1 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.

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