HTC 650 HDX User manual

1
Introduction
A winning combination of strength and versatility has made the HTC 650 one of the most sold grinders in the world. The
patented system with four grinding disks gives the machine balance and makes it easy to handle without compromising
performance and efciency. As with all HTC grinders, the HTC 650 has been engineered to meet stringent demands on
ergonomics, economy and ecology.
HTC 650 EX
HTC 650 EX is a professional machine for grinding large surfaces. The machine has an 7.5 kW 3-phase frequency control-
led motor that makes the machine insensitive to voltage drops. Combined with weights, this machine is ideal for people
who demand a lot of versatility.
HTC 650 HDX
The HTC 650 HDX has an extremely powerful motor producing an impressive 11 kW. Combined with up to 57 kilos of
weights, this machine is ideal for people with extremely high demands for cutting capacity. The HTC 650 HDX is an optimal
machine for grinding concrete oors using the HTC Superoor™ method and for removing coverings.
Standard equipment
The following equipment is always included: puncture-free polyurethane-lled rubber tires, quick contact between the
electronics and motor, splash guard, water tank, locking key for electrical cabinet, hook wrench for grinding disks and hour
counter.
Extra equipment
Pump for cooling the oor surface with water mist.
Sten Jeansson
Managing Director

2
Liability
• Although all possible measures have been taken to ensure the accuracy and completeness of the information presented
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 permis-
sion of HTC.
Trademarks
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.
© 2005 HTC Sweden AB. Sole rights.

3
Contents
Introduction.........................................................................................................................................................................................1
Liability ...................................................................................................................................................................................................2
Trademarks..........................................................................................................................................................................................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 650 ............................................................................................................................................................................................. 11
HTC 650 EX ......................................................................................................................................................................................... 11
HTC 650 HDX...................................................................................................................................................................................... 11
Function Description of Machine Components......................................................................................................13
1. Electrical cabinet:........................................................................................................................................................................13
2. Hour counter:................................................................................................................................................................................13
3. Connection, extractor:...............................................................................................................................................................13
4. Motor: ...............................................................................................................................................................................................13
5. 32A Connection, elec:................................................................................................................................................................13
6. Control panel: ...............................................................................................................................................................................13
7. Handle:.............................................................................................................................................................................................13
8. Handle locking: ............................................................................................................................................................................13
9. Water tank: .....................................................................................................................................................................................13
10. Weight: ..........................................................................................................................................................................................13
11. Weight lock:.................................................................................................................................................................................13
12. Splash guard: .............................................................................................................................................................................13
13. Grinding cover:..........................................................................................................................................................................13
Control Panel on the Machine..............................................................................................................................................14

4
Control Description - Control Panel................................................................................................................................15
1. Standby indicator - Power:......................................................................................................................................................15
2. Overload indicator:.....................................................................................................................................................................15
3. Resetting the electronics - Reset: ........................................................................................................................................15
4. Adjusting the rotational speed of the grinding head - Speed (Grinding Head Speed):..................................15
5. Start/Stop of the rotation of the grinding head - Start/Stop (Grinding Head): ...................................................15
6. Emergency Stop - EM-Stop:....................................................................................................................................................15
7. Ignition switch (Standby):........................................................................................................................................................15
Operation.............................................................................................................................................................................................16
Handle setting....................................................................................................................................................................................16
Grinder weights.................................................................................................................................................................................17
Tools - Access to Tools..................................................................................................................................................................18
Grinding tools - Mounting and changing ...............................................................................................................................19
Transport.................................................................................................................................................................................................20
Preparation for start........................................................................................................................................................................20
Operation.............................................................................................................................................................................................20
Standby ................................................................................................................................................................................................20
Operation via the control panel ..........................................................................................................................................21
The Emergency Stop on the machine......................................................................................................................................21
Start - up Procedure........................................................................................................................................................................21
Overload...............................................................................................................................................................................................21
Make operation easier................................................................................................................................................................22
Maintenance......................................................................................................................................................................................23
Cleaning the machine.....................................................................................................................................................................23
Spare parts and service............................................................................................................................................................23
Environment......................................................................................................................................................................................23
Technical data..................................................................................................................................................................................24
Troubleshooting.............................................................................................................................................................................26
Electronic error codes - Telemeqanique......................................................................................................................27
Electronic error codes - Hitachi SJ200..........................................................................................................................30
Parts list chassis ...........................................................................................................................................................................34
Parts list handle..............................................................................................................................................................................36

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Parts list drive mechanism.....................................................................................................................................................38
Parts list grinding head ............................................................................................................................................................40
Parts list grinding holder.........................................................................................................................................................42

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. See separate warranty terms.
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 applications and maintenance of the HTC 650 EX/HDX
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 ca-
refully 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 help you use the machine and to get the best possible benets from the grinder.
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
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 to avoid
damaging the machine or any other equipment.
This symbol means Tips! and means that you will given tips and advice 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
machine.

7
Safety
The machine 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 ooring 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, hearing protectors, protective goggles and protective glo-
ves.
Do not start the machine in the folded position. Only start the grinder with the rotating disks facing the oor and with the
tools applied.
Be careful when replacing grinding tools as the tools and metal disks 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 fold up the machine when removing glue or wet grinding so that the machine does not get stuck to the oor and
damage machine parts upon restart.
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 splashguard installed.
Use only HTC original tools and genuine spare parts.

8
Vibration and noise
The machine has been tested in accordance with ISO 8662-4 and ISO 11202 for vibration and noise. The mean value for
vibrations is 1.01 m/s² which applies when the machine 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 hearing protection.
Machine plate
Model number and serial number for your machine is shown on the machine plate. This information is required when or-
dering spare parts for the machine. Use the space below to note the model number and serial number of your machine for
future reference.
MODEL NUMBER _______________________________________________________
SERIAL NUMBER _________________________________________________________
KEY NUMBER _______________________________________________________
Delivery
The following items should be included on delivery. Contact your distributor if anything is missing.
• Grinder
• Splash guard
• Manual
• Key