HTC 950 RX User manual

v.3

1
Introduction
The HTC 950 RX™ is the most advanced mobile grinder in the world which by denition also makes it the fastest in the
world. Its predecessor, the HTC 800, revolutionised the market in 1992.
Since then, HTC has manufactured over 4,000 grinders, making us the market leader within the eld.
The new HTC 950 RX™ represents a milestone not just for HTC, but also for the entire industry that was started with the
launch of the very rst professional grinder. The HTC 950 RX™ boasts a range of new functions to facilitate working with
the machine while increasing capacity without the need for more personnel. Please read this manual to help you get the
most out of your new grinder.
Sten Jeansson
Managing Director

2
Liability
• Although all possible measures have been taken to ensure the accuracy and completeness of the information pre-
sented in this manual, we do not accept any responsibility or liability for errors or missing information. HTC reserves
the right to alter descriptions in this manual without prior notice.
• This manual is protected by copyright and no part may be copied or in any way used without the express written per-
mission of HTC.
Trademark
The HTC trademark is owned by HTC Sweden AB. Other names and products mentioned in this manual may be registered
trademarks of their respective companies.
© 2004 HTC Sweden AB. Sole rights.

3
Introduction ............................................................................................................................................................................................1
Liability ......................................................................................................................................................................................................2
Trademark................................................................................................................................................................................................2
Warranty....................................................................................................................................................................................................6
The manual..............................................................................................................................................................................................6
Safety ..........................................................................................................................................................................................................7
Vibration and noise...........................................................................................................................................................................8
Machine plate ........................................................................................................................................................................................8
Unpacking the machine.................................................................................................................................................................9
CE marking..............................................................................................................................................................................................9
Declaration of Conformity..........................................................................................................................................................10
HTC 950 RX™...................................................................................................................................................................................... 11
Description of the machine.......................................................................................................................................................12
Function description of machine components ..........................................................................................................13
1. Drive lock:.......................................................................................................................................................................................13
2. Motor box drive:...........................................................................................................................................................................13
3. Electrical cabinet:........................................................................................................................................................................13
4. Weight lock:...................................................................................................................................................................................13
5. Connection, extractor:...............................................................................................................................................................13
6. 32A Connection, elec:................................................................................................................................................................13
7. Control panel: ...............................................................................................................................................................................13
8. Handle:.............................................................................................................................................................................................13
9. Handle locking: ............................................................................................................................................................................13
10. Lifting eye: ...................................................................................................................................................................................13
11. Front cover: .................................................................................................................................................................................13
12. Motor:.............................................................................................................................................................................................13
13. Weight: ..........................................................................................................................................................................................13
14. Grinding cover: ..........................................................................................................................................................................13
15. Water connection:.....................................................................................................................................................................13
16. Weight lock (see item 4) ........................................................................................................................................................13
17. Splash guard: .............................................................................................................................................................................13
Control panel on the machine.................................................................................................................................................14

4
Control description - Control panel....................................................................................................................................15
1. Standby indicator - Power:......................................................................................................................................................15
2. Overload indicator:.....................................................................................................................................................................15
3. Communication error indicator - Com Error:...................................................................................................................15
4. Radio control indicator - Radio Enabled: ..........................................................................................................................15
5. Radio control On/Off:.................................................................................................................................................................15
6. Adjustment of rotational speed of the grinding head - Speed (Grinding Head Speed): ................................15
7. Start/Stop of the rotation of the grinding head - Start/Stop (Grinding Head): ...................................................15
8. Emergency Stop - EM-Stop:....................................................................................................................................................15
9. Ignition switch (Standby):........................................................................................................................................................15
Radio control unit ............................................................................................................................................................................16
Description of controls – Radio control unit..........................................................................................................17
1. OFF/ON, Emergency stop ........................................................................................................................................................17
2. Steering control ...........................................................................................................................................................................17
3. Frequency button ........................................................................................................................................................................17
4. Grinding head rpm......................................................................................................................................................................17
5. Grinding head OFF/ON..............................................................................................................................................................17
6. Battery LED....................................................................................................................................................................................17
7. Radio LED.......................................................................................................................................................................................17
8. Battery..............................................................................................................................................................................................17
9. Speed, motion...............................................................................................................................................................................17
10. Motion, fwd/rev...........................................................................................................................................................................17
11. Adjustment, control..................................................................................................................................................................17
12. Start Radio ...................................................................................................................................................................................17
Operation................................................................................................................................................................................................18
Handle setting....................................................................................................................................................................................18
Wheel locking ....................................................................................................................................................................................19
Grinder weights.................................................................................................................................................................................20
Tools - access of tools ...................................................................................................................................................................21
Grinding tools - Mounting and changing ...............................................................................................................................22
Transport....................................................................................................................................................................................................23
Prepare to start .................................................................................................................................................................................23
Radio or manual control................................................................................................................................................................24
Standby ................................................................................................................................................................................................24

5
Operating via the control panel - Manual control ...............................................................................................................25
Emergency Stop switch on the grinder ..................................................................................................................................25
Start-up procedure...........................................................................................................................................................................25
Overload...............................................................................................................................................................................................25
Radio control.................................................................................................................................................................................26
Operation via radio control unit – Radio control ................................................................................................................26
Start routine – Radio control .......................................................................................................................................................26
Stop routine – Radio control .......................................................................................................................................................26
Change of radio frequency...........................................................................................................................................................27
Make operation easier...................................................................................................................................................................28
Maintenance.........................................................................................................................................................................................29
Cleaning the machine.....................................................................................................................................................................29
Charging the grinder batteries ...................................................................................................................................................29
Charging the radio control unit batteries...............................................................................................................................29
Spare parts and service...............................................................................................................................................................31
Environment.........................................................................................................................................................................................31
Technical data.....................................................................................................................................................................................32
Frequently asked questions - General:............................................................................................................................34
Fault tracing .........................................................................................................................................................................................35
Electronic error codes..................................................................................................................................................................36
Parts list chassis ..............................................................................................................................................................................40
Parts list Mist Cooler System..................................................................................................................................................42
Parts list handle.................................................................................................................................................................................44
Parts list drive mechanism........................................................................................................................................................46
Parts list grinding head................................................................................................................................................................48
Parts list grinding holder (1x4)...............................................................................................................................................50
Parts list electrical components............................................................................................................................................52

6
Warranty
The warranty only covers manufacturing faults. HTC is not responsible for any damage arising from, or caused by, trans-
port, unpacking or usage. In no case, and under no circumstances will the manufacturer be held responsible for damage or
faults caused by incorrect application, corrosion or due to usage that does not comply with the specications. The manufac-
turer is in no way liable for indirect damages or costs. The manufacturer warranty period is 12 months from commissioning,
although not longer than 18 months from delivery from the factory (General delivery conditions NL92).
Local distributors may have special warranty conditions that are stated in their terms of sale, terms of delivery and warranty
conditions In the event of any uncertainty pertaining to the warranty conditions, please contact your distributor.
The manual
In addition to general functionality, this manual also covers the application and maintenance of the HTC 950 RX™ grinder.
A number of symbols have been used to clearly mark the sections that are of extra importance in the manual, see below. In
order to avoid personal injury and material damage, as far as possible, it is of the utmost importance that you carefully read
and fully understand the texts that accompany these symbols. There are also some practical tips marked with a symbol.
The tips are there to assist you when you use the grinder and help you get the best possible benets from it.
This symbol means Warning! and means risk of personal injury or material damage if the machine and accompanying equipment is
used incorrectly.
If you see this symbol next to a text, read the text extra carefully and do not perform any operation you are unsure of. This is for your
own or for other users’ safety and to avoid damaging the machine or any other equipment.
This symbol means Note! and means risk of possible material damage if the machine and accompanying equipment is used incor-
rectly.
If you see this symbol next to a text, read the text extra carefully and do not perform any operation you are unsure of. This is to avoid
damaging the machine or any other equipment.
This symbol means Tips! and means that you will given tips and advice in the text that follows on facilatory or wear saving measures
for your machine or accompanying equipment.
If you see this symbol next to a text, you should read through the text as it will assist you in your work and extend the service life of the
grinder.

7
Safety
The grinder may only be operated or repaired by personnel who have undergone practical or theoretical training and have read through
this manual.
The instructions in this manual must be observed in order for CE marking to apply.
Only use the machine for grinding or polishing unhewn stone, terrazzo, concrete or any other material specied in this manual.
Do not use the machine in environments where there is a risk of explosion or re.
Wear personal protective equipment at all times - safety boots, ear muffs, protective goggles and protective gloves.
Do not start the machine in folded position. Only start the grinder with the rotating discs facing the oor and with the tools applied.
Be careful when replacing grinding tools as the tools and metal discs can be hot.
Disconnect the power supply from the machine when replacing the grinding tools.
Only lift the machine using the parts specied in this manual.
Do not use the machine on sloping surfaces.
Do not move the machine manually on sloping surfaces as there is a major risk of crushing if the machine starts to roll.
Always tilt the machine after grinding when removing glue or when wet grinding so that the machine does not get stuck to the oor and
destroy machine parts or the oor when restarting.
Always keep the machine in a dry and warm area when it is not being used.
If the machine is kept in a cold area, it must stand in a heated room for two hours prior to use.
Only use the machine with the splash guard tted.
Only use HTC original tools and original spare parts.

8
Vibration and noise
The machine has been tested in accordance with ISO 8662-4 and ISO 11202 with respect to vibration and noise. The mean
value for vibrations is 1.01 m/s² which applies when the grinder accelerates. Sound power level when rough grinding concrete
is 93 dB (mean value). This value varies depending on the choice of tool and type of oor. Always wear ear muffs
Machine plate
Model number and serial number for your machine is shown on the machine plate. This information is required when ordering
spare parts for the grinder. Use the space below to note the model number and serial number of your grinder for future refer-
ence.
MODEL NUMBER _______________________________________________________
SERIAL NUMBER __________________________________________________________
KEY NUMBER _______________________________________________________
Delivery
The following items should be included on delivery. Contact your distributor if anything is missing.
• Grinder
• Radio control
• Splash guard
• Manual
• Key