HTC 270 EG User manual

HTC 270 EG
MANUAL
GB
Translation of manual in original language

HTC 270 EG

Contact Information
HTC Sweden AB
Box 69
SE-614 22 Söderköping - Sweden
Tel: [phone]
Fax: [phone]
You can find addresses for our retailers and service partners on our website:
www.htc-floorsystems.com
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.
© 2011 HTC Sweden AB. All rights reserved.

EC Declaration of conformity
Manufacturer: HTC Sweden AB
Box 69
SE-614 22 Söderköping
Sweden
[phone]
Type of equipment: Grinding machine
Make: HTC
Model: HTC 270 EG
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 2011 onward conforms to the applicable regulations
in directives MD 2006/42/EC, EMC 2004/108/EC and LVD 2006/95/EC. The following
standards have been used as a basis: ISO 5349-1:2001, ISO 5349-2:2001, ISO
20643:2005, ISO 3741.
This product was CE-marked in 2011. The technical documentation is available from
the manufacturer.
Original of the EC declaration of conformity (Swedish). Other languages are
translations of the original of the EC declaration of conformity.
Söderköping 06/04/2011
Peter Lundgren
Development Manager,
HTC Sweden AB
Kåre Kilgren
Product Manager,
HTC Sweden AB

HTC 270 EG Table of contents
i
1 Introduction 1
1.1 General Information ......................................................... 1
1.2 Responsibility .................................................................. 1
1.3 Manual ............................................................................. 1
1.3.1 Safety Instructions – Explanation of Symbols .... 1
1.4 Transportation ................................................................. 2
1.5 On delivery ...................................................................... 2
1.6 Unpacking the machine ................................................... 3
1.7 Machine name plate ........................................................ 3
1.8 Handling and storage ...................................................... 4
1.9 Vibration and noise .......................................................... 4
1.9.1 Hand and arm vibrations .................................... 4
1.9.2 Sound power level .............................................. 4
2 Safety 5
2.1 General Information ......................................................... 5
2.2 Warnings ......................................................................... 5
2.3 Notes ............................................................................... 6
3 Machine description 9
3.1 General machine description ........................................... 9
3.2 Description of controls – Control panel ........................... 11
3.3 Lifting the machine .......................................................... 12

Table of contents HTC 270 EG
ii
4 Usage 13
4.1 General Information ......................................................... 13
4.2 Handle settings ................................................................ 14
4.3 Access to grinding tools .................................................. 15
4.4 Fitting and replacing grinding tools .................................. 16
4.4.1 Fitting grinding tools ........................................... 17
4.4.2 Changing grinding tools ...................................... 19
4.5 Fitting extra weights ........................................................ 19
4.6 Preparations for dry grinding ........................................... 21
4.7 Preparations for wet grinding .......................................... 21
4.8 Operation ......................................................................... 22
4.8.1 Standby .............................................................. 22
4.8.2 Emergency stop switch ...................................... 23
4.8.3 Starting the machine .......................................... 23
4.8.4 Overload ............................................................. 23
4.9 Adjustment of grinding head ............................................ 24
4.9.1 Adjustment of grinding head against walls ......... 24
4.9.2 Setting the grinding head position ...................... 24
4.9.3 Adjusting the machine before and during
grinding ............................................................... 26
4.10 Transportation ................................................................. 29
5 Maintenance and repairs 30
5.1 General Information ......................................................... 30
5.2 Cleaning .......................................................................... 30
5.3 Daily ................................................................................ 30
5.4 Every week ...................................................................... 30
5.4.1 Check and cleaning of belt ................................. 31
5.5 Every month (or 100 hours) ............................................. 32
5.6 Repairs ............................................................................ 33
5.7 Spare parts ...................................................................... 33
6 Faultfinding 34
6.1 General Information ......................................................... 34
6.2 The machine will not start ................................................ 34
6.3 The machine vibrates or wears the tool unevenly ........... 34
6.4 The machine is grinding at an angle ............................... 34
6.5 The machine stops immediately after starting ................. 35
6.6 The fuses trip frequently .................................................. 35
6.7 The machine cannot cope ............................................... 35

HTC 270 EG Table of contents
iii
7 Electronic error codes 36
7.1 General Information ......................................................... 36
7.2 Schneider Electric ATV12 ................................................ 36
7.2.1 Resetting the frequency converter ..................... 36
7.2.2 Checking the last error code .............................. 37
7.3 Schneider Electric ATV312 .............................................. 37
7.3.1 Resetting the frequency converter ..................... 38
7.3.2 Checking the last error code .............................. 38
8 Technical data 40
9 Environment 44
10 Warranty and CE marking 45
10.1 Warranty .......................................................................... 45
10.2 CE marking ...................................................................... 45

Table of contents HTC 270 EG
iv

HTC 270 EG Introduction
2.0 1
1 Introduction
1.1 General Information
HTC 270 EG is a grinder that can be used to grind, strip, clean and polish concrete,
unhewn stone and terrazzo as well as wood floors. The machine's area of application
depends on the choice of tool.
Read the manual carefully, so you are totally familiar with the machine before you start
to use it. Contact your local retailer for further information. For contact information, see
Contact Information at the start of the manual.
1.2 Responsibility
Even though every effort has been made to make this manual as complete and accurate
as possible, we bear no responsibility for incorrect or missing information. HTC
reserves the right to change descriptions in this manual without giving prior notice.
This manual is protected by the Copyright Act and no part of it may be copied or used
in any other way without the written approval of HTC.
1.3 Manual
In addition to the general functions, this manual deals with the areas of application and
the maintenance of the grinder.
1.3.1 Safety Instructions – Explanation of Symbols
A number of symbols are used in the manual to highlight the most important sections,
see below. In order to avoid both personal injury and material damage as far as possible,
it is extremely important to read and understand the text next to these symbols
particularly carefully. There are other symbols indicating practical tips. These are to
help you use the machine in the easiest and most effective way.
The following symbols are used in the document to indicate where special attention is
needed.
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. This is for your own and
other users' safety and to avoid damage to machinery or other equipment.

Introduction HTC 270 EG
2 2.0
Note!
This symbol means Note! and indicates that material damage can occur if the
machine or its accessories are used incorrectly. 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. This is to avoid damage
to the machine or other equipment.
Tip!
This symbol means Tip!and indicates that you can get tips and advice on ways
to make operating your machine or associated equipment easier, and to avoid
wear. If you see this symbol next to a text, you should read through the text to
make your work easier and to extend the service life of the machine.
1.4 Transportation
Always make sure that the grinder is securely anchored to its surroundings and the
grinding head is lowered against the surface.To prevent the machine from being
damaged while it is secured, make sure that a spacing block is placed as support, see
Transportation, page29. Make sure that the securing straps or other equipment used
for anchoring during transport are tightened over non-moving parts, e.g. the grinder's
chassis.
When lifting the grinder, lifting straps must be used. These must be attached
well-secured in the lifting eyes provided, , position 2, Figure3-1, page9. Only use
lifting straps approved for lifting equipment.
Do not transport the grinder on sloping surfaces, e.g. loading ramps, without securing it
by the lifting eyes, , position 2, Figure3-1, page9for example with a winch. This is
a safety measure in case the grinder starts to roll out of control. Also make sure that
people (including operator) in the vicinity are at a safe distance in order to prevent
personal injury, in the event that the grinder starts to roll out of control.
1.5 On delivery
The following items are included in the delivery. Contact your retailer if anything is
missing.
• Grinding machine
• Manual disc
• Locking key for control cabinet
• Hammer EZ system