Operating Conditions - YATO YT-09717 Manual De Instrucciones

warm and dry. If numbness, tingling, pain or bleaching occurs
in your fi ngers or hands, stop using the pneumatic tool, then
inform your employer and consult your doctor. The operation
and maintenance of the pneumatic tool must be carried out in
accordance with the instructions in the manual in order to avoid
an unnecessary increase in vibration levels. Select, maintain
and replace consumables/inserted tools in accordance with
the instructions in order to prevent unnecessary increase in
vibration levels. Support the weight of the tool with a base,
tensioner or stabiliser, if possible. Hold the tool with a light but
secure grip, taking into account the required reaction forces, as
the risk of vibration is usually greater when the clamping force
is higher. Incorrect installation of the inserted cutting tool can
result in increased vibration levels.
Additional safety instructions for pneumatic tools
Pressurised air can cause serious injury:
- always disconnect the air supply, release the air pressure from
the hose and disconnect the tool from the air supply when not in
use, before changing accessories or carrying out repairs;
- never point the air stream at yourself or anyone else.
Hitting with the hose can cause serious injury. Always check for
damaged or loose hoses and connectors. Whenever universal
screwed connections (dog connections) are used, safety pins
and safety connectors must be used to prevent damage to the
connections between the hoses and between the hose and the
tool. Do not exceed the maximum air pressure specifi ed for the
tool. Never carry the tool holding it by the hose.
Caution! Tool kickback towards the operator
The kickback of the tool towards the operator is caused by a
sudden reaction to a locked or clamped grinding wheel or other
accessory. Locking or clamping causes a rotating accessory to
stop suddenly, which results in the pneumatic tool rotating in
the opposite direction to the accessory rotation. For example, if
the grinding wheel is locked or clamped by the workpiece, the
edge of the grinding wheel which reaches the clamping point
can sink in the surface of the material, causing the grinding
wheel to escape or be ejected. The grinding wheel can also
escape towards or away from the operator, depending on the
direction of the grinding wheel movement at the clamping point.
The grinding wheels may also break in such conditions. The
tool kickback towards the operator is a result of misuse and/
or failure to follow the guidelines in the User Manual. This
occurrence can be avoided by following the instructions below.
Use a fi rm grip on the tool and the correct position of the body
and hands to withstand the forces generated by the kickback.
Always use an additional handle, if supplied with the tool, to
ensure maximum control during the kickback or any unexpected
rotation during the tool start. The operator will be able to control
the tool rotation or the kickback if appropriate precautions are
taken. Keep your hands away from rotating tool parts. The
rotating parts can come into contact with your hands, when
kicked back. Do not stand in the area where the tool may kick
back. The kickback will direct the tool in the opposite direction
to the direction of the grinding wheel rotation, at the clamping
point. Pay special attention when working near corners, sharp
edges, etc. Prevent the grinding wheel from jumping and being
jammed. When working corners or edges, there is an increased
risk of the grinding wheel jam, leading to a loss of control over
the tool or its kickback. Do not use cutting chain blades or
O R I G I N A L
12
GB
circular saws. The blades cause frequent kickbacks and the
loss of control of the tool.
Warnings related to grinding and cutting with grinding wheels
Use only tool-specifi c grinding wheels and guards that are
designed for the type of the grinding wheel in question.
The grinding wheels for which the tool is not designed cannot
be properly guarded and are not safe.
The guard must be securely attached to the tool and positioned
for maximum safety so that the smallest possible area of the
wheel is exposed towards the operator. This guard helps to
protect the operator from broken wheel fragments and prevents
accidental contact with the grinding wheel.
The grinding wheel must be used as intended. For example, do
not sand with a cutting grinding wheel. Cutting grinding wheels
are designed for use under heavy pressure and the lateral
forces applied to them may cause them to fall apart.
Always use undamaged fi xing fl anges that are the correct size
for the grinding wheel. The correct fi xing fl anges reduce the
risk of damage to the grinding wheel. The fi xing fl anges for
cutting grinding wheels can be diff erent from the fi xing fl anges
for grinding wheels.
Do not use worn grinding wheels from larger tools. A larger
diameter grinding wheel is not suited for
higher rotation speed of smaller tools and may break.

OPERATING CONDITIONS

Make sure that the compressed air source generates the correct
working pressure and provides the required airfl ow. If the supply
air pressure is too high, a pressure reducer with a safety valve
must be used. The pneumatic tool must be fed through the fi lter
and lubricator system. This will ensure that the air is both clean
and moistened with oil. Check the condition of the fi lter and
lubricator before each use and clean the fi lter if necessary or
make up for oil shortage in the lubricator. This will ensure the
correct operation of the tool and extend its service life.
Always use the tool with the additional handle fi tted. The
additional handle allows safer and more effi cient work.
When using additional holders or support racks, make sure that
the tool is correctly and securely attached.
Fix the workpiece in such a way that the gap created during
cutting maintains the same width or opens.
Stand in a correct position to prevent normal or unexpected
movement of the tool due to torque. If the cutting wheel gets
stuck in the workpiece, switch it off in order to release the blade.
Make sure that the blade is not damaged before switching the
tool on again.
Pay attention to the working environment, the cutter can easily
cut the nearby obstacles.
Do not use the grinding wheels and the cutting tools for lateral
grinding.
After switching off the cutter, wait until the rotating tool has
come to a complete standstill before setting it down.
Before installing any additional equipment, make sure that the
maximum equipment rotation speed is higher than that of the
cutter. Do not use equipment with a handle diameter other than
that specifi ed in the manual. The accessory equipment must
be fi rmly and securely attached to the tool holder. Do not use
sleeves or reduction rings to adjust the spindle diameter of the
tool and the grinding wheel.
I N S T R U C T I O N S