Hilti NURON SC 4WL-22, Original Operating Instructions

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22 English 2276127
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Always observe that the lower guard is covering the blade before placing the saw down on bench
or floor. An unprotected, coasting blade will cause the saw to walk backwards, cutting whatever is in its
path. Be aware of the time it takes for the blade to stop after switch is released.
Guard function
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Check the guard for proper closing before each use. Do not operate the saw if the guard does
not move freely and enclose the blade instantly. Never clamp or tie the guard so that the blade is
exposed. If the saw is accidentally dropped, the guard may be bent. Check to make sure that the guard
moves freely and does not touch the blade or any other part, in all angles and depths of cut.
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Check the operation and condition of the guard return spring. If the guard and the spring are
not operating properly, they must be serviced before use. The guard may operate sluggishly due to
damaged parts, gummy deposits, or a build-up of debris.
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Assure that the base plate of the saw will not shift while performing a “plunge cut”. Blade shifting
sideways will cause binding and likely kick back.
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Always observe that the guard is covering the blade before placing the saw down on bench or
floor. An unprotected, coasting blade will cause the saw to walk backwards, cutting whatever is in its
path. Be aware of the time it takes for the blade to stop after the switch is released.
2.3 Additional safety instructions
Personal safety
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Never tamper with or modify the product or accessories in any way.
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Operate the power tool only together with the safety devices that belong to it.
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If you use the power tool without a dust extractor, always wear light respiratory protection when
undertaking work that creates dust.
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Always hold the power tool firmly with both hands on the grips provided.
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Wear ear protectors. Exposure to noise can cause hearing loss.
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Improve the blood circulation in your fingers by relaxing your hands and exercising your fingers during
breaks between working.
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The power tool is not intended for use by debilitated persons who have received no special training.
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Do not switch the power tool on until it is at the workplace and has been brought to its working position.
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Remove the battery if a problem occurs with the power tool, whenever you change accessory tools or
accessories and before storing or transporting the power tool.
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Do not work overhead with the power tool.
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Do not attempt to brake the power tool by applying lateral pressure to the saw blade.
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Before inserting the battery, check that the saw is switched off and that the switch-on interlock is
activated. In this way you avoid injuries due to unintentional starting of the power tool.
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While the power tool is running, do not touch the clamping flange or the clamping screw.
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Before you lay down the power tool, wait until the power tool has come to a complete stop.
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Before changing the accessory tool, wait until the power tool has cooled down.
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Never press the drive spindle lock button while the saw blade is rotating.
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Never direct the power tool toward persons.
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The switch-on interlock must always be activated whenever you change accessories or the battery, for
transport and when you are going to stow the power tool away.
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Always use a saw blade suitable for the material and the condition of the workpiece.
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Adapt forward pressure to the saw blade and the material being cut. In this way you prevent the saw
blade from stalling and possibly causing kickback.
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Make sure that the path of the saw is free of obstructions such as nails, screws and other metal objects.
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Avoid overheating the tips of the saw blade teeth.
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When cutting plastic, make sure that the workpiece does not become too hot and melt.
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The rated speed of the accessory tool must be at least equal to the maximum speed marked on the
power tool. Accessories running faster than their rated speed can disintegrate and fly apart.
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Do not work in an environment heavily contaminated with dust.