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HTC 950 RX
Huskvarna, 2022-10-11
Operator's manual, EN
Dear customer,
Thank you for choosing a Husqvarna quality product. We hope that you will
genuinely enjoy it.
Please note that the enclosed manual contains HTC Floor Systems references.
The Husqvarna Group is vouching for the quality of this product.
If you have any questions, please do not hesitate to contact our local sales or
service point, or visit www.husqvarnacp.com.
Husqvarna AB
SE-561 82 Huskvarna, Sweden
1143367-26

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Summary of Contents for Husqvarna HTC 950 RX

  • Page 1 Huskvarna, 2022-10-11 Operator’s manual, EN Dear customer, Thank you for choosing a Husqvarna quality product. We hope that you will genuinely enjoy it. Please note that the enclosed manual contains HTC Floor Systems references. The Husqvarna Group is vouching for the quality of this product.
  • Page 3: Eu Declaration Of Conformity

    EU Declaration of Conformity We, Husqvarna AB, SE 561 82 Huskvarna, SWEDEN, Tel. +46 36 146500 declare on our sole responsibility that the product: Description Polish & Grind Equipment Brand HUSQVARNA Type / Model HTC 950 RX Identification Serial numbers dating from 2022 and onwards...
  • Page 4 UK Declaration of Conformity We, Husqvarna AB, SE 561 82 Huskvarna, SWEDEN, Tel. +46 36 146500 declare on our sole responsibility that the product: Description Polish & Grind Equipment Brand HUSQVARNA Type / Model HTC 950 RX Identification Serial numbers dating from 2022 and onwards...
  • Page 5: Table Of Contents

    HTC 950 RX Table of contents Introduction General................1.2 Liability ................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 ............1.8 Handling and storage ............
  • Page 6 Table of contents HTC 950 RX Operation General................4.2 Handle setting ..............4.3 Locking the wheels ............4.4 Using the support wheel ........... 4.5 Handling weights .............. 4.6 Access to grinding tools ........... 4.7 Fitting and replacing grinding tools........4.7.1 Fitting grinding tools ..........
  • Page 7 HTC 950 RX Table of contents Troubleshooting General................6.2 The machine will not start..........6.3 The machine vibrates or wears the tools unevenly ..6.4 The machine is grinding at an angle ........ 6.5 The machine stops - manual operation ......
  • Page 8: 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 9: Transportation

    HTC 950 RX Introduction Warning! This symbol means Warning! and indicates a risk of personal injury or material damage in the event of incorrect use of the machine. 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 10: On Delivery

    Introduction HTC 950 RX The machine can also be moved short distances using the inbuilt battery drive and with the support wheel fitted. The battery capacity is sufficient to transport the machine for ca. 30 minutes. Do not transport the grinder on sloping surfaces, e.g. loading ramps, without securing it by the lifting eyes, position 3, Figure 3-1,...
  • Page 11: Handling And Storage

    HTC 950 RX Introduction Figure  1-1. Machine name plate Handling and storage When not in use, the machine should be stored in a heated, dry area. Otherwise it may be damaged by condensation and cold. When lifting the grinder, lifting straps must be used. These must be attached well-secured in the lifting eyes provided, position3, Figure 3-1, page 11.
  • Page 12: Hand And Arm Vibrations

    HTC 950 RX 1.9.1 Hand and arm vibrations Hand and arm-weighted vibration level [m/s²] for HTC 950 RX have been measured using equipment approved in accordance with ISO 5349-1:2001. Measurement uncertainty for the measuring equipment is given as ±2%. The machine has been tested in accordance with ISO 5349-2:2001 and ISO 20643:2005 in order to identify the operations that contribute to the most frequent vibration exposures.
  • Page 13: Safety

    HTC 950 RX Safety Safety General This chapter contains all the warnings and notes that must be considered for the HTC 950 RX. 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 950 RX 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 950 RX Safety 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

    Machine description General machine description HTC 950 RX is 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 17 HTC 950 RX Machine description Figure  3-1. The front of the machine Handle Handle lock Water tank cover Lifting eye Motor Weights (grinding pressure) Mouthpiece Mist Cooler Floating grinding cover outer moveable section Floating grinding cover inner fixed section Water tap, Mist Cooler...
  • Page 18: Description Of Controls - Control Panel

    Machine description HTC 950 RX Figure  3-2. The machine's rear Control Panel Electrical connection Extraction connection Hour counter Mist-Cooler On/Off Control cabinet Drive motor box Locking pin, driving Locking pin, weights (grinding pressure) Support wheel, used during transport Description of controls - control panel...
  • Page 19 HTC 950 RX Machine description Figure  3-3. Description of controls - 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).
  • Page 20: Description Of Controls - Radio Control Unit

    Machine description HTC 950 RX 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 21 HTC 950 RX Machine description FWD/RWD - Control for moving the machine forward (FWD) or backwards (RWD). 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.
  • Page 22: Operation

    Operation HTC 950 RX Operation General 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. 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 23: Handle Setting

    HTC 950 RX Operation Handle setting Warning! The is a risk of crush injuries when adjusting the handle into the desired position. Make sure the handle lock locks properly in the desired position. 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 17.
  • Page 24: Locking The Wheels

    Operation HTC 950 RX 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 Working position - the working height can be adjusted to two positions using the machine's adjustable handle.
  • Page 25: Using The Support Wheel

    HTC 950 RX Operation 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 26: Handling Weights

    Operation HTC 950 RX The grinder can also be moved short distances using the inbuilt battery drive and with the support wheel mounted. The battery capacity is sufficient to transport the machine for ca. 30 minutes. Figure  4-5. Fitting the support wheel...
  • Page 27 HTC 950 RX Operation 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. To obtain a greater grinding pressure, and thereby increased grinding effect, the weights are lowered forwards, see Figure 4-6, page 21.
  • Page 28: Access To Grinding Tools

    Operation HTC 950 RX Figure  4-8. Weights folded back Access to grinding tools 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.
  • Page 29 HTC 950 RX Operation Tip the machine backwards carefully, until the weights reach the floor, see Figure 4-10, page 23. Figure  4-10. Fold back Tip the machine further back, until all of the machine reaches the floor, see Figure 4-11, page 23. Figure  4-11. Weight lock on the floor...
  • Page 30: Fitting And Replacing Grinding Tools

    Operation HTC 950 RX 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 4-12, page 24. Figure  4-12. The machine rests on the floor Fitting and replacing grinding tools As the machine is equipped with the patented EZchange tool system, fitting and replacing grinding tools is quick and easy.
  • Page 31: Fitting Grinding Tools

    HTC 950 RX Operation 4.7.1 Fitting grinding tools Slide the grinding tool diagonally, from above, down into the appropriate guide slot on the tool holder, see Figure 4-13, page 25. Then push the tool fully into the guide slot. Figure  4-13. Fitting grinding tools Lock the grinding tool into the tool holder by giving it a few light taps with a hammer, see Figure 4-14, page 25.
  • Page 32: Changing Grinding Tools

    Operation HTC 950 RX 4.7.2 Changing grinding tools Remove the grinding tool by giving it a few light taps with a hammer so the locking mechanism releases, see Figure 4-15, page 26. Then draw the tool up out of the guide slot. Figure  4-15. Removing grinding tools Slide the new grinding tool diagonally, from above, down into the appropriate guide slot on the tool holder, see Figure 4-13, page 25.
  • Page 33: Preparations For Dry Grinding

    Set the handle to the working position, see Figure 4-2, page 18. Preparations before grinding with Mist-Cooler HTC 950 RX is equipped with the Mist Cooler system for effective cooling of the grinding tools. The system involves dispersing a very finely divided water mist onto the floor surface through a mouthpiece.
  • Page 34: Preparations For Wet Grinding

    Operation HTC 950 RX Turn on the Mist-Cooler by turning the control (position 5 Figure 3-2, page 12) to "ON". Switch off the Mist-Cooler by turning the control (position 5 Figure 3-2, page 12) to "OFF" when grinding is finished. Turn the tap to the closed position when grinding is finished.
  • Page 35: Emergency Stop Switch

    HTC 950 RX Operation 4.11.2 Emergency stop switch The emergency stop switch, (EM-Stop) must only be used in an emergency, because it shortens the service life of the machine's electrical components. When the switch is pressed, all electrically-powered equipment on the machine are turned off.
  • Page 36: Manoeuvring Via The Radio Control Panel

    Operation HTC 950 RX 4.12 Manoeuvring via the radio control panel During radio control, the machine is manoeuvred via the radio control unit, see Figure 3-4, page 14. When operating via the radio control unit, the machine is driven forwards with the help of the motors in the drive motor box.
  • Page 37: Start The Machine - Radio Control

    HTC 950 RX Operation 4.12.3 Start the Machine - Radio Control Note! To save energy, the radio control unit automatically switches off if a button is not activated within a given time. in which case, the blinking points in the display are extinguished.
  • Page 38: Changing The Radio Frequency

    Operation HTC 950 RX Press in the button "EM-STOP", to switch off the radio control unit. 4.12.5 Changing the radio frequency If several machines are used in the same workplace, there can be interference with the radio communication, which means that it is necessary to change the frequency on a machine.
  • Page 39 HTC 950 RX Operation Figure  4-16. 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 40: Maintenance And Repairs

    Maintenance and repairs HTC 950 RX 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 according to the label on the machine.
  • Page 41: Daily

    HTC 950 RX Maintenance and repairs • Recharge/replace the batteries when L" appears in the display and blinks quick, see Figure 3-4, page 14. Stop the machine, see under Stop the machine - Radio control, page 31. Loosen the battery cover by screwing the screws out on the cover Remove the old/flat batteries.
  • Page 42: Repairs

    Maintenance and repairs HTC 950 RX • Check the seals on the shafts on which the upper belt runs and replace if necessary. • Scrape and vacuum-clean the parts shielded by the grinding cover. • Test run and listen for any dissonance from the bearings.
  • Page 43: Troubleshooting

    HTC 950 RX Troubleshooting 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 44: The Machine Stops - Radio Control

    Troubleshooting HTC 950 RX The machine stops - radio control Other equipment can interfere with the radio traffic between the machine and the radio control unit, which means that the communication error indicator (ComError) can start to blink on and off. When the contact between the machine and the radio control has been broken for too long the machine stops for safety reasons.
  • Page 45: Electronic Error Codes

    HTC 950 RX Electronic error codes Electronic error codes General A common fault on grinders is that the motor is overloaded. OCF = Rapidly rising current OHF = Rapidly rising current OLF = Overload motor 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.
  • Page 46: Resetting The Frequency Converter

    Electronic error codes HTC 950 RX 7.2.2 Resetting the frequency converter Switch off the machine by turning the start key to "Off" . Wait until the display goes out. Reset the emergency stop switch. Start the machine by turning the start key to "On".
  • Page 47: Technical Data

    HTC 950 RX Technical data Technical data The table below shows the machine's technical data. HTC 950 RX EU HTC 950 RX US Mist Mist Motor power Current Voltage 3 x 380-415 3 x 440-480 LEDs Control voltage Total machine weight...
  • Page 48 Technical data HTC 950 RX HTC 950 RX EU HTC 950 RX US Mist Mist Permitted daily exposure, Floor 6,76 6.76 preparation (T-Rex) Thrust/Load Capacity 1500 1500 Driving speed <0,35 ft/s <1.15 Frequency (Transmitter/Receiver) 433,100-434,750 433.100-434.750 Transmitter power (FM) ≤10 ≤10...
  • Page 49 HTC 950 RX Technical data Figure  8-2. Height and length of the machine...
  • Page 50: Environment

    Environment HTC 950 RX 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 Rubber...
  • Page 51: Recycling

    HTC 950 RX Environment Machine part Material Waste management Motor Metal, cast iron, aluminium and copper Electronic waste Electrical components Metal. ferrous, copper, plastic Electronic waste If possible, different metals should be separated. Recycling For recycling and scrapping of components, see the applicable national regulations for...
  • Page 52: Warranty And Ce Marking

    Warranty and CE marking HTC 950 RX Warranty and CE marking 10.1 Warranty This warranty only covers manufacturing defects. 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. The manufacturer is not responsible for indirect damage or costs under any circumstances.
  • Page 53 HTC 950 RX Warranty and CE marking...
  • Page 56 www.husqvarnaconstruction.com Original instructions 1143367-26 2022-11-02...

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