DeWalt DWS778 Original Instructions Manual page 30

english
WARNING! The use of any accessory or attachment
or performance of any operation with this tool other
than those recommended in this instruction manual
may
present a risk of personal injury.
21. Have your tool repaired by a qualified person.
This electric tool complies relevant safety rules. Repairs
should only be carried out by qualified persons using original
spare parts; otherwise this may result in considerable danger
to the user.
Additional Safety Rules for Mitre Saws
• The machine is provided with a special configured power
supply cord which can only be replaced by the manufacturer
or its authorised service agent.
• Do not use the saw to cut other materials than those
recommended by the manufacturer.
• Do not operate the machine without guards in position, or if
guards do not function or are not maintained properly.
• Ensure that the arm is securely fixed when performing bevel
cuts.
• Keep the floor area around the machine level, well-
maintained and free of loose materials, e.g., chips and cut-
offs.
• Select the correct blade for the material to be cut.
• Use correctly sharpened saw blades. Observe the maximum
speed mark on the saw blade.
• Make sure all locking knobs and clamp handles are tight
before starting any operation.
• Never place either hand in the blade area when the saw is
connected to the electrical power source.
• Never attempt to stop a machine in motion rapidly by
jamming a tool or other means against the blade; serious
accidents can occur.
• Before using any accessory consult the instruction manual.
The improper use of an accessory can cause damage.
• Use a holder or wear gloves when handling a saw blade or
rough material.
• Ensure that the saw blade is mounted correctly before use.
• Make sure that the blade rotates in the correct direction.
• Do not use blades of larger or smaller diameter than
recommended. For the proper blade rating refer to the
technical data. Use only the blades specified in this
manual, complying with EN 847-1.
• Consider applying specially designed noise-reduction blades.
• Do not use HIGH SPEED STEEL blades.
• Do not use cracked or damaged saw blades.
• Do not use any abrasive or diamond discs.
• Use only saw blades where the marked speed is at least
equal to the speed marked on the saw.
• Never use your saw without the kerf plate.
• Raise the blade from the kerf in the workpiece prior to releasing
the switch.
• Before each cut ensure that the machine is stable.
• Do not wedge anything against the fan to hold the motor
shaft.
• The blade guard on your saw will automatically raise when
the arm is brought down; it will lower over the blade when
the guard lock-up release lever (B) is pushed.
28
• Never raise the blade guard manually unless the saw is
switched off. The guard can be raised by hand when
installing or removing saw blades or for inspection of the saw.
• Check periodically that the motor air slots are clean and free
of chips.
• Replace the kerf plate when worn.
• Disconnect the machine from the mains before carrying out
any maintenance work or when changing the blade.
• Never perform any cleaning or maintenance work when
the machine is still running and the head is not in the rest
position.
• When fitted with a laser or LED, no exchange with a different
type of laser is permitted. Repairs shall only be carried out by
the laser manufacturer or an authorized agent.
• Connect the saw to a dust collection device when sawing
wood. Always consider factors which influence exposure of
dust such as:
-– type of material to be machined (chip board produces
more dust than wood);
-– sharpness of the saw blade;
-– correct adjustment of the saw blade;
-– dust extractor with air velocity not less than 20 m/s.
Ensure that the local extraction as well as hoods, baffles and
chutes are properly adjusted.
• Please be aware of the following factors influencing exposure
to noise:
-– use saw blades designed to reduce the emitted noise;
-– use only well sharpened saw blades.
• Machine maintenance shall be conducted periodically.
• Provide adequate general or localized lighting.
• Ensure the operator is adequately trained in the use,
adjustment and operation of the machine.
• Ensure that any spacers and spindle rings are suitable for the
purpose as stated in this manual.
• Refrain from removing any cut-offs or other parts of the
workpiece from the cutting area while the machine is running
and the saw head is not in the rest position.
• Never cut workpieces shorter than 150 mm.
• Without additional support the machine is designed to
accept the maximum workpiece size of:
– Height 85 mm by width 305 mm by length 400 mm;
– Longer workpieces need to be supported by suitable
additional table, e.g. DE7023. Always clamp the
workpiece safely to the saw table.
• In case of an accident or machine failure, immediately turn
the machine off and disconnect machine from the power
source.
• Report the failure and mark the machine in suitable form to
prevent other people from using the defective machine.
• When the saw blade is blocked due to abnormal feed force
during cutting, turn the machine off and disconnect it from
power supply. Remove the workpiece and ensure that the
saw blade runs free. Turn the machine on and start new
cutting operation with reduced feed force.
• Never cut light alloy, especially magnesium.
• Whenever the situation allows, mount the machine to a
bench using bolts with a diameter of 8 mm and 80 mm in
length.