DeWalt DCH911 Original Instructions Manual page 32

EnGLIsh
b ) Never service damaged battery packs. Service
of battery packs should only be performed by the
manufacturer or authorised service providers.
Hammer Safety Warnings
• Wear ear protectors. Exposure to noise can cause
hearing loss.
Use auxiliary handles, if supplied with the tool. Loss of
•
control can cause personal injury.
• Hold the power tool by insulated gripping surfaces,
when performing an operation where the cutting
accessory may contact hidden wiring. Cutting accessory
contacting a "live" wire may make exposed metal parts of the
power tool "live" and could give the operator an electric shock.
Additional Safety Instructions for
Chiselling Hammers/Breakers
• Use clamps or other practical way to secure and support
the workpiece to a stable platform. Holding the work by
hand or against your body is unstable and may lead to loss
of control.
• Wear safety goggles or other eye protection. Hammering
operations cause chips to fly. Flying particles can cause
permanent eye damage. Wear a dust mask or respirator
for applications that generate dust. Ear protection may be
required for most applications.
• Keep a firm grip on the tool at all times. Do not attempt
to operate this tool without holding it with both hands. It
is recommended that the side handle be used at all times.
Operating this tool with one hand will result in loss of control.
Breaking through or encountering hard materials such as
re-bar may be hazardous as well. Tighten the side handle
securely before use.
Do not operate this tool for long periods of time.
•
Vibration caused by hammer action may be harmful to your
hands and arms. Use gloves to provide extra cushion and limit
exposure by taking frequent rest periods.
• Do not recondition accessories yourself. Chisel
reconditioning should be done by a qualified specialist.
Improperly reconditioned accessories could cause injury. Only
slightly-worn chisels can be resharpened by grinding.
• Do not overheat the bit (discoloration) while grinding
a new edge. Badly worn chisels require reforging. Do not
reharden and temper the chisel.
Wear gloves when operating tool or changing bits.
•
Accessible metal parts on the tool and bits may get extremely
hot during operation. Small bits of broken material may
damage bare hands.
• Never lay the tool down until the bit has come to a
complete stop. Moving bits could cause injury.
• Do not strike jammed bits with a hammer to dislodge
them. Fragments of metal or material chips could dislodge
and cause injury.
Make sure that there are no power or gas lines in the
•
work area. Damage to hidden power or gas lines can result in
injury from electric shock or explosion.
30
• When working above the floor, make sure that the area
below is clear. Falling parts can cause injuries to bystanders.
• In cold weather or if the unit has not been used for a
long time, run the unit without load for a few minutes
before use. High load in cold condition may cause damage
to the breaker.
• Make sure that the chisel is secured before using the
tool. Ejected parts can cause injuries.
Reducing Dust Exposure
Before starting work, check the hazard class of the dust that will
be produced when working.

WARNING: Avoid touching or breathing dust as it can
be harmful to health. Dust created when using a power
tool and when conducting other construction activities
can contain chemicals, minerals, or particles known to
cause respiratory infections, allergic reactions, cancer,
birth defects, or other reproductive harm of the user
or bystanders.
• Such dust can be generated, for example, when working on
hardwoods such as beech or oak, lead-based paint, concrete,
masonry, or stones containing quartz.
• Material containing asbestos may be handled only
by specialists.
• Observe the relevant regulations in your country for the
materials to be worked on.
• Use a dust extractor or extraction system with an officially
approved protection class in compliance with the locally
applicable dust protection regulations and suitable for the
material to be worked on.
• Capture the resulting dust particles directly at the source and
avoid deposits in the surrounding area. Use suitable extraction
accessories for this purpose.
additional measures:
ʵ Make sure that the workplace is well ventilated.
ʵ Wear a respirator appropriate for the type of
dust generated.
Residual Risks
In spite of the application of the relevant safety regulations
and the implementation of safety devices, certain residual risks
cannot be avoided. These are:
• Impairment of hearing.
• Risk of personal injury due to flying particles.
• Risk of burns due to accessories becoming hot
during operation.
• Risk of personal injury due to prolonged use.
SAVE THESE INSTRUCTIONS
Chargers
D WALT chargers require no adjustment and are designed to be
e
as easy as possible to operate.