Specific safety rules and symbols – Hilti WSR900-PE User Manual

Page 5

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3. Specific safety rules and symbols

3.1 Basic information concerning safety

In addition to the information relevant to safety given
in each of the sections of these operating instructions,
the following points must be strictly observed at all times.

Read all safety precautions and instructions! Failure to
observe the following safety precautions and instruc-
tions may lead to electric shock, fire and/or serious injury.

3.2 Take the necessary precautions to make the
workplace safe

Ensure that the workplace is well ventilated.

Keep the working area tidy. Objects which could cause
injury should be removed from the working area. Untidi-
ness at the workplace may lead to accidents.

Keep the area above and below the cutting line free of

Wear suitable working clothing. Wear a hair net if you
have long hair.

Do not permit other persons to touch the electric tool
or the extension cord.

Avoid unusual body positions. Work from a secure
stance and stay in balance at all times.

To avoid tripping and falling when working, always lead
the supply cord and extension cord away to the rear.

Concealed electric cables or gas and water pipes pre-
sent a serious hazard if damaged while you are work-
ing. Accordingly, check the area in which you are work-
ing beforehand (e.g. using a metal detector).

Unknown base materials should be examined in order
to avoid personal injury or the possibility of cutting
into pipes or cables. Use the right blade for the mate-
rial being cut.

Do not cut unless there is proper clearance beyond
the workpiece being cut. The blade may cause the tool
to kick-back if it strikes a hidden object.

Before cutting pipes, always first ensure that the pipes
contain no liquids. Empty the pipes if necessary. The
tool is not water or moisture proof. Liquids running
out may cause a short circuit in the tool resulting in an
electric shock being received. When cutting pipes, hold
the tool so that it is higher than the pipe being cut.

3.3 General safety precautions

To ensure efficient and safe operation, the contact
shoe of the tool must be pressed against the work-


Keep the tool, especially its grip surfaces, clean and
free from oil and grease.

Always hold the tool securely, with both hands on the
grips provided

ẅ. Make sure to grip the tool and posi-

tion your hands and fingers so they will not contact
or slip into the area of the blade clamp or saw blade.

Switch on the tool only after it has been brought into
position where the cut is to be made.

Do not start the tool with the blade contacting the work

When cutting, always guide the tool away from the

Switch the tool off before transporting it.

Always allow the tool to come to a complete stop before
removing it from the workpiece.

Never place your hands in front of or on the saw blade.

Check the tool for possible damage. Protective devices
and any parts that may have suffered slight damage
should be checked for correct operation and func-
tionality before further use of the electric tool. Safety
devices or other parts that are found to be damaged
must be replaced or repaired properly by an autho-
rized repair workshop unless otherwise indicated in
the operating instructions.

Always use saw blades of adequate length. To help
avoid kick-back while sawing, the blade must always
project at least 40 mm (1.5 in) beyond the workpiece
during the stroke cycle


3.3.1 Mechanical

Ensure that the saw blades used are equipped with the
correct connection end system and that they are prop-
erly fitted and secured in the blade clamp.

may be suitable for one tool may become hazardous
when used on another tool.

6. Service

Tool service must be performed only by qualified
repair personnel.
Service or maintenance per-
formed by unqualified personnel could result in a risk
of injury.

When servicing a tool, use only identical replace-
ment parts. Follow instructions in the Maintenance
section of this manual.
Use of unauthorized parts or
failure to follow Maintenance Instructions may create
a risk of electric shock or injury.

This manual is related to the following products: