Norton Clipper CG125 User manual

CG125
OPERATING INSTRUCTIONS

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Operating Instruction
Important Safety Instructions
Warning notices
Warning of general danger
Warning of dangerous voltage
Warning of hot surface
Danger of being ripped or cut
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

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Specifications
Concrete Grinder CG 125
Rated voltage
230 V
Power input
1800 W
Frequency: 40 - 60 Hz
Rated speed: 10,000 rpm
Max. disc diameter: 125 mm
Spindle: M 14
Protection class: II
Degree of protection: IP 20
Net weight: about 5.7 kg
Interference suppression: EN 55014 and EN 61000
Content of Delivery
Concrete grinder, tool kit and operating instructions in a metal case
Application for Indented Purpose
The concrete grinder is indented 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.
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.

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Safety Instructions
Safe work with the machine is only possible if you read
this operating instruction 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 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.
Use 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 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.

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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 machine 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!
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 machine includes a start-up speed limiter to prevent fast expulsion
fuses from unintended responding.
Electrical Connection

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Switching on and off
Short-Time Operation
Switching-on: press the on/off switch
Switching-off: release the on/off switch
Permanent Operation
Switching-on: press the on/off switch and, keeping it pressed, engage the
lock-on button
Switching-off: press the on/off switch and release it again
!
Attention!
In case of every stop of the machine or a power cut, the
lock-on button has to be released immediately by pressing
the ON/OFF switch. So you can avoid an unintentional
restart of the machine (physical hazard).
Overload Protection
To protect operator, machine and tool the concrete grinder is equipped with
an electronic overload protection:
To warn the user against an overload of the machine due to too high
grinding pressure, a LED is attached to the motor housing. It does not light
during idle run or at normal load. When the unit is overloaded the LED
lights red, in this case, the unit must be stress-relieved. You can continue
working after having stress-relieved and switching OFF and ON the power
tool again.
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!

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First of all, the detachable hood
segment has to be removed. The snap
fit opens up and the segment is pushed
forward. 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
concrete grinder must be used with a vacuum cleaner, and a dust mask
has to be worn. The suitable Wet/Dry Vacuum Cleaner 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.
Therefore, remove the three fixing screws of the firm part of the dust guard
and the two fixing screws of the detachable part. Pull out the worn brush
rim and replace it by a new one. Pay attention that the fastening holes in
the brush rim and the holes of the dust hood have the same same position.
Screw both parts together.

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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: Don’t 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 removed by means of the chucking device. 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.
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.

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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,
which makes it possible to remove environmental 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 2002/96/EC 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 50 144.
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.

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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
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.

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Declaration of Conformity
On sole responsibility we declare that this product is in conformity with the
following standards and standard documents:
EN 50 144, EN 55 014, EN 61 000, IEC 60 745
according to the regulations 2006/95/EC, 89/336/EEC, 98/37/EC
Mersch Pierre
Business Manager Machines
Saint-Gobain Abrasives
L- 4930 Bascharage

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SAINT-GOBAIN ABRASIVES
190,Bd John F. Kennedy
L-4930 BASCHARAGE
LUXEMBOURG
Tel.: ++352 50 401-1
Fax: ++352 50 16 33
e-mail: [e-mail]
www.construction.norton.eu
20.10.2009