EIBENSTOCK Elektrowerkzeuge EBS 235.1 Concrete Grinder Instruction Manual

EBS 235.1
Original instructions

EBS 235.1 Concrete Grinder

Special accessories

1. -Transport handle
2. -Handle
3. -Handgriffeinstellung
4. -ON/OFF switch
5. -Connection for vacuum cleaner
6. -Clamp lever for inclination adjustment
7. -Height adjustment of the chassis
8. -Diamond grinding wheel
9. -Fastening screws for diamond grinding wheel
10. -Detachable segment of the dust hood

Important Safety Instructions

Important instructions and warning notices are put on the machine by means of symbols:
Before you start working, read the operating instructions of the machine.
Work concentrated and carefully. Keep your work-place 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
Wear a dust mask
Wear protective gloves
Important instructions and warning notices are allegorized on the machine by means of symbols:
Warning of general danger
Warning of dangerous voltage
Warning of hot surface
Danger of being ripped or cut

Technical Data

Concrete Grinder EBS 235.1

Max. disc diameter: 235 mm
Spindle connection: M 20 / special
Protection class: I
Degree of protection: IP 54
Net weight: about 38 kg
Interference suppression: EN 55014 and EN 61000
Available accessories:

Content of Delivery
Concrete grinder EBS 235.1 with assembly tool and operating instructions in cardboard box.
Application for Intended Purpose
The concrete grinder EBS 235.1 is intended for professional use.
The EBS 235.1 has to be used complete and correctly mounted according to the assembly instruction.
With a grinding tool appropriate for the referring application, the tool may be used for smoothing rough concrete, removing mould seams, residual mud, old paint and adhesive remnants, joint fillers and tile adhesives as well as for roughening smooth surfaces interior and outside.
The machine may be used exclusively in conjunction with a vacuum cleaner of dust category M.
Only use accessories recommended by EIBENSTOCK.

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. Save all warnings and instructions for future reference.
Work concentrated and carefully. Keep your work place clean and avoid dangerous situations.
In order to protect the user, take precautions.
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 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 dust guard.
• Always check the tool, cable and plug before use 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.
• Don’t 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.
• Do not touch rotating parts.
• Personen unter 16 Jahren dürfen das Gerät nicht benutzen.
• 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.
• Always carry the tool at the transport handle (1) intended for it. Therefore, put the floor guiding device in upright position.
• Attention! The tool still runs for a little while after the machine was switched off.

For further safety instructions, please refer to the enclosure!

Floor guiding device

Handle assembly

Before initial operation the handle (2) has to be mounted to the floor guiding device.Put the handle through the fastening clamp at the device, fix it with allen screw (3), following push the rubber handle onto the tube. Using a rubber mallet, carefully hit on the rubber handle until it is completely on the tube.
Handle adjustment For grinding near to the edge the handle (2) can be moved laterally.
For this open the allen screw (3), move the handle to the left and close the allen screw.
Heigth adjustment

The floor guiding device can be adjusted in its height and inclination to your needs. For this open the clamp lever (6) and turn the floor guiding device in the desired position and close the clamp lever. To transport the machine in vehicles the floor guidng device can be tilt back to the ground.
Before, pull the extraction hose from the nozzle at the hood.

Chassis adjustment

To achieve an optimal grinding result the chassis has to be adjusted in its position to the current inclination adjustment of the floor guiding device and to the rate of wear on the grinding wheel (height of the grinding segments).
For this open the screw (7) with the Allen screw SW 8 fixed at the column of the floor guiding device. Make sure that the grinding wheel rests holohedral on the floor by pressing on the motor. Now control that the wheels of the chassis rest on the floor.
If necessary adjust the position of the chassis and close the screw. 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 I.
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.

Switching on and off

Put the plug in the mains.
Tilt slightly the machine, so that the grinding wheel runs free when switching on. Switch ON / OFF switch (4) to “I”.
Before switch off tilt slightly the machine again and switch the ON / OFF switch to “0”.
Before put down the machine, wait until the grinding wheel stops.
Attention!
In case of every automatic stop of the machine or mains failure, the concrete grinder has to be switched OFF immediately by pressing the ON/OFF switch. Consequently, you can avoid an unintentional restart of the machine (physical hazard).

Dust Extraction

Dust which occurs during your work is hazardous to health. That is why the machine must be used with a vacuum cleaner (dust category M), and a dust mask has to be worn.
The suitable Wet/Dry Vacuum Cleaner DSS 35 M iP is available as accessory. It can directly be attached to the connection (5) on the floor guiding device.

Instruction for Use

Attention! Check the correct fit of the Diamond grinding wheel before each use!
Connect the tool to an appropriate dust extraction.
Switch the machine on and put the machine carefully on the surface.
Guide the tool with both hands. The concrete grinder can be moved pushing and drawing across the surface.
Check in regular intervals the wear of the diamond segments.
On hard floorings you need some abrasive dust on the surface to sharpen the diamond segments faster.
Therefore, it suffices to switch off the connected industrial vacuum cleaner for few seconds.
Or the surface can be wetted during grinding to reduce the “polishing” of the diamond segments.
Take care that approx. 20 to 30 per cent of the grinding wheel works on the already grinded surface to avoid scoring and to get a better grinding result.
This method also avoids polishing of the diamond segments.
Grinding near to the edge: For grinding at egdes (f.e. on walls, thresholds, edges of the base…) a segment from the protection cover (10) can be removed.
Loosen the 2 screws with the included Allen key SW 8 and slide the segment of the protection cover. The assembly of the segment is in reverse order.
For grinding near to the edge the handle has to be adjusted accordingly (see handle adjustment).
Attention! For all other works you always have to work with the complete protection hood!
Attention!
Do not touch rotating parts!
Before the beginning of all works disconnect the plug from the mains!

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!
Put the flooring guiding device upright.
For changing the grinding wheel put down the machine in that way that no damages can occur.
Changing of the diamond grinding wheel:Open the 6 cheese-head screws M6x25 (8) with the Allen key SW 5 included in delivery of the grinding wheel or base plate.
For easier changing lock the workspindle with an Allen key SW 8 through the opening in the middle of the ventilation shroud of the motor.
Put the grinding wheel (7) from his connection.
Before mounting a new grinding wheel clean the spindle connection.
Mount the new diamond grinding wheel the other way round! For mounting the new grinding wheel or base plate always use the new screws included in delivery of the accessories. These are equipped with a screw locking against unintentional loosening.
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 accessories!

Care and Maintenance

Before the beginning of 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 machine needs a minimum of care and maintenance.
However, the following points always have to be observed:

• 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.

Our after-sales service responds to your questions concerning maintenance and repair of your product as well as spare parts.
EIBENSTOCK’s application service team will gladly answer questions concerning 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 packaging. 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, which makes it possible to remove environmentally friendly and differentiated because of 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
The indication of noise emission is measured according to DIN 45 635, part 21. The level of acoustic pressure on the work place could exceed 85 dB (A); in this case protection measures must be taken.
Wear ear protectors!
The typical hand-arm vibration is below 2.5 m/s².
Measured values determined according to EN 60 745.
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 industrial vacuum cleaner DSS 35 M iP 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.

Warranty

According to our general terms of delivery for business dealings, suppliers have to provide to companies a warranty period of 12 months for redhibitory defects (to be documented by invoice or delivery note). Damages due to natural wear, overstressing or improper handling are excluded from this warranty. Damages due to material defects or production faults shall be eliminated free of charge by either repair or replacement.
Complaints will be accepted only if the tool is returned in non-dismantled condition to the manufacturer or an authorized Eibenstock service centre.

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 55 014, EN 61 000
according to the provisions of the directives 2011/65/EU, 2014/30/EU, 2006/42/EG
Technical file (2006/42/EC) at:
Elektrowerkzeuge GmbH Eibenstock
Auersbergstraße 10
D – 08309 Eibenstock

|
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Lothar Lässig
General Manager
19.09.2022| Frank Markert
Head of Engineering

GB – Declaration of Conformity
We declare as the manufacturer under our sole responsibility that the product described under “Technical Data” fulfi lls all the relevant provisions of the following Regulations S.I. 2008/1597 (as amended), S.I. 2017/1206 (as amended), S.I. 2012/3032 (as amended) and that the following designated standards have been used:
BS EN 60 745, BS EN 55 014, BS EN 61 000
Technical file (S.I. 2008/1597) at:
Elektrowerkzeuge GmbH Eibenstock
Auersbergstraße 10
D – 08309 Eibenstock

|
---|---
Lothar Lässig
General Manager
19.09.2022| Frank Markert
Head of Engineering

Subject to change without notice

Your Distributor
Elektrowerkzeuge GmbH Eibenstock
Auersbergstraße 10
D – 08309 Eibenstock
+49 (0) 37752 5030
www.eibenstock.com
09/2022 /95010S38

References

• EIBENSTOCK Elektrowerkzeuge | Qualitätswerkzeuge

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