WARNING – Compressed air can cause severe injury. Before working on the
tools (e.g. installation, changing accessories or machine tools, prior to a long
standstill, maintenance, etc.) depressurize pneumatic equipment.
CAUTION – Risk of injury by whipping pneumatic hose.
Check pneumatic hoses, connection components and fittings regularly for any
damages and proper fixture.
When connecting / disconnecting the machine to / from the pneumatic supply,
please pay attention not to actuate the valve while doing so. Never remove a
pressurized pneumatic hose. Always switch the power supply off first and then
depressurize the machine.
The maximum operating pressure (flow pressure) according to the technical
specification must not be exceeded.A pressure regulator should be installed,
which regulates the pressure before it reaches the machine. Never direct a
pneumatic hose at yourself or anyone else. Never clean your clothes with
compressed air. Direct cold air away from your hands. Do not pull or carry the
machine by the pneumatic hose. When using claw couplings make sure that
they are fitted with a suitable lock mechanism (e. g. lock pin) and a safety chain.
Before starting work make sure that the hands are protected against: impacts, crushing,
hits, cuts, abrasions and heat. The operating and maintenance personnel must be physically
able to handle the bulk, the weight, the power and/or the torque of the machine. Do not use
the machine if you have taken any medication or drugs, after drinking alcohol or with any other
constraints on your vision, reaction time or judgment. Work in the best possible position so
that you can react with both hands to any normal or unexpected movements of the machine.
Maintain a balanced body position and secure footing in order to avoid improper strain and to
be able to support the reaction torque of the machine. If you cannot safely support the reaction
torque of the machine, use a torque reaction bar (e.g. linear stand, telescopic arm, holding
fixture/ holder-on, support grip).
Additionally, observe the following:
•
Operate the machine only after having carefully read the operation manual.
•
Use appropriate drill bits.
•
The work place has to be secured according to the instructions, in order to avoid injury to
persons nearby due to projectiles coming-off.
•
The machine is for hand-held operation only.
•
Consider the producer's specification when selecting the drill bit.
•
Check the secure fixing of drill chuck and drill bit before starting work.
•
If the machine blocks, higher reaction torques can occur. Blocking can be caused by:
overload, tilting of the drill bit in the work piece or when penetrating the material to be
drilled. Do not let the drill bit rumble on the work piece, as this will most likely increase the
46
SAFETY INSTRUCTIONS FOR PREVENTION
OF HAZARDS CAUSED BY COMPRESSED AIR
SAFETY INSTRUCTIONS FOR PREVENTION
OF OPERATING HAZARDS