Defort DEC-1646N Mode D'emploi page 11

RUN-DOWN BRAKE/KICKBACK BRAKE
The chain saw is equipped with two safety features:
The run-down brake stops the saw chain after releasing the
On/Off switch 3.
The kickback brake is a safety mechanism activated through
the front hand guard 5 when kickback occurs. Chain stop re-
sponse time is 0.1 seconds.
WORKING WITH THE CHAIN SAW
Before Cutting
Before starting operation and periodically during cutting, carry
out the following checks:
– Is the chain saw in a fail-safe condition?
– Is the oil reservoir fi lled? Check oil level gauge prior to start-
ing and regularly during operation. Refi ll oil when oil level has
reached the bottom edge of the viewing glass.
The oil tank fi lling will last approx. 15 minutes, depending on
sawing intensity and stops.
– Is the saw chain properly tensioned and sharp? Check chain
tension every 10 minutes during operation. Upon initial opera-
tion, new chains can lengthen considerably. The condition of
the chain infl uences the cutting performance.
Only a sharp chain protects from overload.
– Is the kickback brake deactivated and its function ensured?
– Are you wearing the required protective equipment? Wear
safety glasses and hearing protection. Further protective equip-
ment for head, hands, legs and feet is recommended.
Suitable protective clothing reduces the danger of injury from
thrown about cutting material and accidental touching of the
saw chain.
KICKBACK
Kickback is the sudden backward/upward motion of the chain
saw, occuring when the chain (at the tip of the chain bar) comes
in contact with a log or wood, or when the chain becomes
jammed.
When kickback occurs, the chainsaw reacts unpredictable and
can cause heavy injuries to the operator or bystanders. Par-
ticular attention must be given when sawing sidewards, slanted
or during length cuts, as the gripping teeth 12 usually can not
be applied.
To avoid kickback:
– Saw with the chain bar at a fl at angle.
– Never work with a loose, widely stretched or heavily worn
out saw chain.
– Sharpen the saw chain as specifi ed.
– Never saw above shoulder height.
– Never work with the tip of the chain.
– Always hold a chain saw fi rmly with both hands.
– Apply the metal gripping teeth 12 for leverage.
– Ensure correct chain tension.
GENERAL BEHAVIOUR
Always hold the chain saw fi rmly with both hands. Front handle
with the left hand and rear handle with the right hand. Fully
grip both handles with thumb and fi ngers at all times during op-
eration. Never operate chain saw using only one hand. Ensure
power cord is located to the rear, and keep it out of the range
of the saw chain and cutting material; position yourself in such
a manner that the mains cable can not get caught in branches
and twigs. Use the chain saw only with secure footing. Hold the
chain saw at the right-hand side of your body.
The chain must be running at full speed before it makes contact
with the wood. Use the gripping teeth 12 to support the chain
saw on the wood. Use the gripping teeth as a leverage point
while cutting.
Reset the gripping teeth at a lower point when sawing thicker
logs or tree trunks. For this, pull the chain saw slightly back-
wards until the gripping teeth release, and reposition at lower
level to continue sawing. Do not remove the chain saw com-
pletely out of the cut.
Do not force the saw chain while cutting, let the chain do the
work, using the gripping teeth 12 to apply minimal leverage
pressure.
Never operate the chain saw with arms fully extended. Do not
attempt to saw areas which are diffi cult to reach, or on a ladder.
Never saw above shoulder height.
Sawing is optimized when the chain speed remains steady
during cutting. Beware when reaching the end of the cut. The
weight of the chain saw changes unexpectedly as it cuts free
from the wood. Danger of injury to the legs and feet.
Always remove the chain saw from a wood cut while the saw
chain is running.
MAINTENANCE AND SERVICE
Maintenance and Cleaning
● Warning! Switch off, remove plug from mains before adjust-
ing cleaning or if the cable is cut, damaged or entangled.
● For safe and proper working, always keep the machine and
ventilation slots clean.
Note: To ensure long and reliable service, carry out the fol-
lowing maintenance regularly. Regulary check the chain saw
for obvious defects such as loose, dislodged or damaged saw
chain and chain bar, loose fi xings and worn or damaged com-
ponents.
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