TYROLIT HGE125 Concrete Grinder Instruction Manual

ORIGINAL OPERATING
INSTRUCTION
HGE125
Index 000

Original operating instruction
11005047 en / 10.03.2022

HGE125 Concrete Grinder

Congratulations!

You have chosen a tried and tested TYROLIT appliance and therefore a technologically leading standard. Only original TYROLIT spare parts guarantee quality and interchangeability.
If the maintenance work is neglected or carried out improperly, we cannot fulfil our warranty obligation. All repairs may only be carried out by trained specialist personnel.
In order to keep your TYROLIT equipment in perfect condition, our customer service department will be pleased to assist you.
We wish you a trouble-free operation.
TYROLIT Group
Copyright © TYROLIT
TYROLIT Hydrostress CH
Witzbergstrasse 18
CH-8330 Pfäffikon
Switzerland
Telephone 0041 (0) 44 952 18 18
Fax 0041 (0) 44 952 18 00

Important Safety Instructions

Important instructions and warning notices are allegorized on the machine by means of symbols:

|   Before you start working, read the operating instructions of the machine.
---|---
|   Work concentrated and carefully.  Keep your workplace clean and avoid dangerous situations.
|   In order to protect the user, take precautions.
| During work you should wear ear protectors, goggles, dust mask, protective gloves and sturdy work clothes!
|   Use ear protection
|   Wear safety goggles
|   Use safety helmet
|   Wear protective gloves
|   Use protective shoes
|    Warning of general danger
|    Warning of dangerous voltage
|   Warning of hot surface
|   Danger of being ripped or cut

Technical Data

Concrete Grinder  HGE125

Parameter| Value
Rated voltage:| 230 V ~
Power input:| 1500 W
Rated current:| 6.5 A
Frequency:| 50 / 60 Hz
Rated speed:| 6000-10000 rpm
Max. disc diameter:| 125 mm
Spindle connection:|  Ø 22.2 mm
Protection class:| II
Degree of protection:| IP 20
Weight:| 4.5 kg
Interference suppression:| EN 55014 and 61000

Subject to technical changes!

Content of Delivery

Concrete grinder with tool set and instruction manual in metal case.

Intended Use

The concrete grinder is intended for professional use. With an appropriate grinding wheel, the tool may be used for smoothing rough concrete, removing mould seams,  residual mud, joint fillers and tile adhesives.
The machine may be used exclusively in conjunction with a diamond cup wheel and a vacuum cleaner of dust category M.
Only use grinding wheels recommended by the manufacturer.
These have a small weight and a high concentricity. Using other grinding wheels can cause an overload of the machine or damage of the bearings and danger to the user.

Safety Instructions

• Safe work with the machine is only possible if you read this operating instruction completely and follow the instructions contained strictly.
  Additionally, the general safety instructions of the leaflet supplied with the tool must be observed.
  Prior to the first use, the user should absolve a practical training.

• If the mains cable gets damaged or cut during the use, do not touch it, but instantly pull the plug out of the socket. Never use the tool with a damaged mains cable.

• The tool must neither be wet nor used in humid environment.

• Do not use the tool in an environment with danger of explosion.

• Do not drill into asbestos-containing materials.

• Modifications of the tool are prohibited.

• Never use the machine without a dust guard.
  Use the machine with partly removed dust guard in corners only.
  For other applications the dust guard must always be closed.

•  Always check the tool, cable and plug before use. Have damages only repaired by specialists. Insert the plug into the socket only when the tool switch is off.

• When you work outside, the machine has to be used with a fault-current circuit breaker with max.30 mA.

• The machine should only work under supervision of somebody. Plug and switch the machine off if it is not under supervision, in case of putting up and stripping down  the machine, in case of voltage drop or when fixing or mounting an accessory.

• Switch the machine off if it stops for whatever reason. You avoid that it starts suddenly and not under supervision.

• Do not use the machine if a part of the housing is damaged or in case of damages on the switch, the cable or plug.

• Pay attention that the speed indicated on the grinding wheel meets or is higher than the max. speed indicated on the machine.

• Grinding wheels have to be stored and used carefully according to the instructions of the producer.

• Check the accessories before use. Do not use any products which are broken, cracked or damaged in another way.

• Before use, make sure that the tool is correctly fixed and fastened. Let it run idle for about 30 seconds in a safe position. If considerable vibrations occur or if other  defects are recognised, switch off immediately.

• Always lead the mains and extension cable as well as the extraction hose to the back away from the machine.

• Power tools have to be inspected by a specialist in regular intervals.

• Never carry the machine at its cable.

• Do not touch rotating parts.

• Persons under 16 years of age are not allowed to use the tool.

• During use, the operator and other persons standing nearby have to wear suitable ear protectors, a dust mask and protection goggles.

• Make sure that persons in the work space are not endangered by particles flying around.

• Keep the handles dry, clean and free of oil and grease.

• During operation, always hold the tool with both hands.

• Attention! The tool still runs for a little while after the machine was switched off.

For further safety instructions, please refer to the enclosure!

Electrical Connection

Before starting the machine check the correspondence between voltage and frequency according to the data mentioned on the identification plate. Voltage differences from +  6 % and – 10 % are allowed.
The grinder is made in protection class II.
Only use extension cables with a sufficient cross-section. A cross-section which is too small could cause a considerable drop in performance and an overheating of machine and cable.
The tool includes a start-up speed limiter to prevent fast expulsion fuses from unintended responding.
Recommended minimum cross-sections and maximum cable lengths:

Switching on and off

Short-Time Operation
Switching-on: Press the on/off switch twice within 2 seconds.
Switching-off: Release the on/off switch.
Permanent Operation
Switching-on: Press the on/off switch twice within 2 seconds and, keeping it pressed, engage the lock-on button.
Switching-off: Press the on/off switch and release it again.
Attention!
Pressing the switch twice serves as restart protection.
The restarting protection feature prevents uncontrolled restarting of the machine after an interruption in the power supply. To restart the power tool, place the on-off switch  to the off position and switch the power tool on again by pressing the switch twice.

The HGE125 is equipped with an adjusting wheel in order to allow a stepless variable control of speed from 6000 to 10000 rpm. The adjusting wheel is on the top side of the handle opposite of the on/off switch.
A permanent use with reduced speed can cause an overload because the motor then gets less cooling air and therefore the machine will be overheated much faster. A thermal switch-off can be released!

Changing the Diamond Grinding Wheel

Attention!
The grinding wheel might heat up enormously during operation.
You could burn your hands or get cut or ripped by the segments.
Therefore, always use protective gloves when changing the grinding wheel.
Before any work on the tool, disconnect the plug from the mains!

First of all, the detachable hood segment has to be opened.
Now you can hold up the driving disc between gearbox and grinding wheel by using a jaw wrench 32 (1). Use the face spanner (2) to unscrew the driving nut. Then remove  the mounted grinding wheel respectively mount the new one.
The assembly works the other way round. Let the machine run for a short period of time and in a safe position. If the machine does not run easily, stop working immediately.
Use only original accessory!

Dust Extraction

Dust which occurs during your work is hazardous to health. That is why the HGE125 must be used with a vacuum cleaner, and a dust mask has to be worn. The suitable  wet/dry vacuum cleaner (dust category M) is available as accessory.
It can directly be attached to the connection on the dust hood.
Changing the brush rim
If the length of the brushes is – due to wear – smaller than 5 mm (extreme formation of dust during grinding), the brush rim has to be replaced completely.

Instruction for Use

Switch the machine on and put it carefully on the surface you want to work on. Hold the tool with both hands and work with circular or linear movements.
For best working results: Do not put too much pressure on the surface you want to work on.
For grinding works right into edges of the wall one segment of the dust guard can be opened.
This allows grinding on surfaces which are usually hard to reach.
Attention! All other grinding works have to be done with the complete dust guard.

Overload Protection

In order to protect the operator, motor and the tool, the concrete grinders are equipped with an electronic and thermal overload protection.

Electronic: In case of overload caused by a grinding pressure which is too high, the electronics react by decreasing the speed of the machine. You can continue working when  the grinding pressure has been reduced. If you do not relief the pressure on the machine or put furthermore too much pressure on the tool it reacts by switching OFF the machine. After automatic switch-OFF of the machine you can continue working after switching OFF and ON the power tool again.
Thermal: In case of permanent overload, a thermal sensor protects the motor against destruction. In this case, the tool switches off automatically and can only be restarted  after a certain cooling period (approx. 2 minutes). Actuate the ON/OFF switch! The cooling period depends on the heating of the motor winding and the ambient temperature.

Care and Maintenance

Before the beginning of the maintenance- or repair works you have to disconnect the plug from the mains.
Repairs may be executed only by appropriately qualified and experienced personnel.
After every repair the machine has to be inspected by an electric specialist.
Due to its design, the power tool needs a minimum of care and maintenance. The following works have to be carried out or rather the component parts have to be inspected:

• Always keep the power tool and the ventilation slots clean.
• During work, please pay attention that no particles get inside the machine.
• In case of failure, a repair has to be carried out by an authorised service workshop.
• Customer service will answer your questions about repair and maintenance of your product as well as spare parts.
• The TYROLIT application advice team will be happy to help you with questions about our products and their accessories.

Environmental Protection

Raw Material Recycling Instead of Waste Disposal
**** To avoid damages on transportation, the power tool has to be delivered in a sturdy packing. Packaging as well as unit and accessories are made of recyclable materials and can be disposed accordingly.
The tool’s plastic components are marked according to their material. This enables environmentally friendly, differentiated disposal via the available collection facilities.

Only for EU countries
Do not dispose of electric tools together with household waste material!
In observance of the European Directive 2012/19/EU on waste electrical and electronic equipment and its implementation in accordance with national law, electric tools that  have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.

Noise Emission/ Vibration

Measured sound values determined according to EN 60745.
Typically the A-weighted noise levels of the product are:
Sound pressure level LpA 79 dB(A)
Sound power level LwA 90 dB(A)
Uncertainty K 3 dB
Wear ear protectors!
Vibration total values ah and uncertainty K determined according to EN 60745:
Vibration emission value ah 2,2 m/s²
Uncertainty K 0,3 m/s²
The declared vibration emission level represents the main applications of the tool. However if the tool is used for different applications, with different accessories or poorly  maintained, the vibration emission may differ.
This may significantly increase the exposure level over the total working period.
An estimation of the level of exposure to vibration should also take into account the times when the tool is switched off or when it is running but not actually doing the job.  This may significantly reduce the exposure level over the total working period. Identify additional safety measures to protect the operator from the effects of vibration such  as: maintain the tool and the accessories, keep the hands warm, organisation of work patterns.

Dust protection

Dust from material such as paint containing lead, some wood species, minerals and metal may be harmful.
Contact with or inhalation of the dust may cause allergic reactions and/or respiratory diseases to the operator or bystanders.
Certain kinds of dust are classified as carcinogenic such as oak and beech dust especially in conjunction with additives for wood conditioning (chromate, wood preservative).  Material containing asbestos must only be treated by specialists.

• Where the use of a dust extraction device is possible, it shall be used.
• To achieve a high level of dust collection, use an industrial vacuum cleaner (dust category M) for wood and/or minerals together with this tool.
• The work place must be well ventilated.
• The use of a dust mask of filter class P2 is recommended.

EU – Declaration of Conformity

We declare under our sole responsibility that the product described under “Technical Data” is in conformity with the following standards or standardization documents:
EN 60 745,EN 55014-1,EN 55014-2,EN 61000-3-2,EN 61000-3-3,EN IEC 63000 according to the provisions of the directives 2011/65/EU, 2014/30/EU, 2006/42/EG
Technical file (2006/42/EG) at:
TYROLIT Hydrostress CH
Witzbergstrasse 18
CH-8330 Pfäffikon
Switzerland
Pfäffikon, 10.03.2022

Roland Kägi
Operations + R & D Machines
Declaration of Conformity

We declare as the manufacturer under our sole responsibility that the product described under „Technical data“ fulfills all the relevant provisions of the following Regulations  S.I. 2012/3032 (as amended) and that the following designated standards have been used:
BS EN 60745, BS EN 55014-1, BS EN 55014-2, BS EN 50581,BS EN 61000-3-2, BS EN 61000-3-3, BS EN IEC 63000
Technical file (S.I. 2008/1597) at:
TYROLIT Hydrostress CH
Witzbergstrasse 18
CH-8330 Pfäffikon
Switzerland
Pfäffikon, 10.03.2022

Roland Kägi
Operations + R & D Machines
Subject to change without notice.

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