●
Do not use the power tool near to inflammable materials.
Sparks could ignite
these materials.
●
Do not use diamond cutting discs that require liquid coolants.
The use of
water or other liquid coolants can cause an electric shock.
●
Only allow trained persons to use the power tool.
Apprentices may only use
the power tool when they are over 16, when this is necessary for their training
and when they are supervised by a trained operative.
●
Children and persons who, due to their physical, sensory or mental abilities
or lack of experience and knowledge are unable to operate the power tool
safely may not use this power tool without supervision or instruction by a
responsible person.
Otherwise there is a risk of operating errors and injuries.
●
Only use approved and appropriate marked extension leads with a sufficient
cable cross-section.
Use extension leads up to a length of 10 m with cable
cross-section 1.5 mm
²
, from 10 – 30 m with cable cross-section 2.5 mm
²
.
Recoil and appropriate safety instructions for diamond
slitting and cutting machines
Recoil is the sudden reaction to a sticking or blocked diamond cutting disc. Sticking
or blocking leads to abrupt stopping of the rotating diamond cutting discs. This
accelerates the power tool uncontrollably in the opposite direction to the diamond
cutting discs at the blocking point. If, for example, a diamond cutting disc sticks in
the workpiece or blocks, the edge of the diamond cutting disc immersed in the
workpiece can jam and the diamond cutting disc could break out or cause a recoil.
The diamond cutting discs then move towards or away from the operator depending
on the direction of rotation of the diamond cutting discs at the blocking point. Diamond
cutting discs can also break in the process. Recoil is the result of improper or incor-
rect use of the power tool. It can be prevented by suitable precautions as described
below.
●
Hold the power tool securely and move your body and arms into a position
in which you can intercept the recoil. Always use the additional handle to
have the greatest possible control over recoil forces or reaction torques
when running up.
The operator can control recoil and reaction forces by suitable
precautions.
●
Never move your hand close to the rotating diamond cutting discs.
These
could move over your hand in the case of recoil.
●
Avoid the area in front of and behind the rotating cutting discs.
The recoil
propels the power tool in the opposite direction to the movement of the diamond
cutting discs at the blocking point.
●
Work very carefully in the area of corners, sharp edges etc. Prevent diamond
cutting discs from bouncing off the workpiece and jamming.
The rotating
diamond cutting discs tend to jam at corners, sharp edges and when they bounce
off. This causes loss of control or recoil.
●
Do not use a chain or toothed saw blade.
Such tools frequently cause a recoil
or loss of control of the power tool.
●
Avoid blocking of the diamond cutting discs or too high a pressure. Do not
make excessively deep cuts.
Overloading of the diamond cutting discs increases
the stress on them and their susceptibility to jamming or blocking and therefore
the risk of recoil or breaking of the grinding body or breakage of the diamond
cutting discs.
●
If the diamond cutting discs jam or you interrupt your work, switch the tool
off and hold it steady until the diamond cutting discs come to a standstill.
Never try to pull the still rotating diamond cutting disc out of the cut as this
could cause recoil.
Find and eliminate the cause of the jamming.
●
Do not switch the power tool back on as long as it is in the workpiece. Let
the diamond cutting disc reach full speed before carefully continuing the
slitting or cutting process.
Otherwise the diamond cutting discs might stick,
jump out of the workpiece, cause recoil and/or break.
●
Support boards or large workpieces to reduce the risk of recoil due to
jammed diamond cutting discs.
Large workpieces can sag under their own
weight. The workpiece must be supported on both sides of the diamond cutting
discs both near to the cut and at the edge.
●
Be especially careful with "pocket cuts" in existing walls or other areas
hidden from view.
The entering diamond cutting discs can cause recoil when
cutting into gas or water pipes, electric cables or other objects.
Other safety instructions for diamond slitting and cutting
machines
●
Only use the power tool in connection with a suitable safety vacuum cleaner/
dust extractor.
When working with mineral building materials, e.g. concrete,
steel-reinforced concrete, all types of masonry, all types of screed, natural stone,
a high degree of mineral dust containing quartz is produced which is harmful to
the health. Inhalation of quartz fine dust is harmful to the health. The Directive
89/391/EEC on the taking of measures to improve the safety and health protec-
tion of employees at work obliges the employer to carry out an appropriate risk
assessment at the employees’ place of work, to determine and evaluate the dust
load that can occur and to determine the necessary protective measures. The
German technical ruling for hazardous substances TRGS 559 "Mineral Dust"
defines in Appendix 1 that work with slitting and cutting machines must be clas
-
sified in exposure category 3 if the effectiveness of the extraction has not been
proven. In accordance with EN 60335-2-69 a penetration level of < 0.1 % is
prescribed for sucking health hazardous dusts with an exposure limit/work place
limit (AGW) of > 0.1 mg/m³. When slitting and cutting mineral building materials
at least one safety vacuum cleaner/dust extractor or dust class M should there-
fore usually be used in order to effectively extract the harmful dusts from machines.
Observe the national regulations: You are expressly reminded that, in many
countries, additional regulations regarding the safe use of such vacuum cleaners
for clearing up and disposal of health hazardous dusts are imposed by the national
industrial health and safety authorities, water board and similar authorities.
●
Check the areas concerned for concealed supply lines with a suitable finder
before slitting.
Slitting can damage or sever gas or water pipes, electric cables
or other objects. Damaged gas pipes can cause explosions. Damaged water
pipes and electric cables can damage property or cause electric shocks. If you
do damage a water pipe, make sure that no water gets into the motor.
●
This power tool is not intended for use by persons (including children) with limited
physical, sensory or mental abilities or lack of experience and knowledge unless
they have been instructed in the use of the power tool a person responsible for
their safety and are supervised by such a person. Children must be supervised
to ensure that they do not play with the power tool.
●
Check the power cable of the power tool and extension leads regularly for
damage.
Have these renewed by qualified experts or an authorised ROLLER
customer service workshop in case of damage.
●
Never use the power tool in an explosive environment.
The power tool gener-
ates sparks when in use which could ignite dust and gases.
●
Only use diamond cutting discs with a metal body in accordance with EN
13236.
●
Secure the workpieces to be machined against being flung away.
●
Diamond cutting discs get very hot during work.
Let them cool down before
touching or removing.
Explanation of symbols
WARNING
Danger with a medium degree of risk which could result in
death or severe injury (irreversible) if not heeded.
CAUTION
Danger with a low degree of risk which could result in minor
injury (reversible) if not heeded.
NOTICE
Material damage, no safety note! No danger of injury.
Read the operating manual before starting
Use eye protection
Use a respirator
Use ear protection
Use hand protection
Electrical device complies with protection class II
Environmental friendly disposal
eng eng
1. Technical data
Use for the intended purpose
WARNING
The ROLLER’S diamond slitting and cutting machines are intended for straight slitting or cutting of mineral building materials such as concrete, steel-reinforced concrete,
all kinds of masonry, all kinds of screed, natural stone without using water in connection with a suitable safety vacuum cleaner/dust extractor using suitable diamond cutting
discs with firm contact with
the contact plate (9). Curved cuts are not permissible because the diamond cutting discs could jam or break. All other uses are not for the
intended purpose and are therefore prohibited.
1.1. Scope of Supply
Electric diamond slitting and cutting machine, Allen key size 13, operating instructions, steel case.
