Checking The Clutch - Ryobi RCS5133CB Traduction Des Instructions Originales

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  • FRANÇAIS, page 15
HOLDING THE PRODUCT
See page 319.
Always hold the product with your right hand at the rear
handle and your left hand at the front handle. Grip both
handles with the thumbs and fi ngers encircling the handles.
Ensure that your left hand is holding the front handle so that
your thumb is underneath.
CHECKING AND OPERATING CHAIN BRAKE
1. Engage the chain brake by rotating your left hand
around the front handle. Allow the back of your hand to
push the chain brake lever/hand guard toward the bar
while the chain is rotating rapidly. Be sure to maintain
both hands on the handles of the product at all times.
2. Reset the chain brake back into the Run position by
grasping the top of the chain brake lever/hand guard
and pulling toward the front handle until you hear a
click.
WARNING
If the chain brake does not stop the chain immediately,
or if the chain brake will not stay in the run position
without assistance, bring the product to an authorised
service centre for repair prior to use.
WARNING
When the throttle trigger is released and the engine is
running at idle speed, the saw chain must not move. If it
does continue to move there is risk of severe injury to the
operator. Do not use the product, bring the product to an
authorised service centre for professional adjustment.

CHECKING THE CLUTCH

1. Disengage the chain brake by pulling the chain brake
lever/hand guard towards the front handle until a click
is heard.
2. Allow the engine to run idle. Ensure that the saw chain
is not rotating. If the saw chain rotates while running
at idle speed, the clutch may be damaged. Do not use
the product. Bring the product to an authorised service
centre for professional adjustment.
3. Depress the throttle trigger half-way and run the product
at mid speed. The saw chain should rotate smoothly if
the clutch is in good working condition.
RESTARTING AFTER EXTENDED PERIODS OF HEAVY
USE
After using the chain saw for extended periods of time,
please let the product run in idle, with the chain brake
engaged for 3 to 5 minutes, allowing accumulated heat
of the engine to dissipate through the forced-air cooling
system.
This helps prevent a potential heat soak and thus potential
high stress of certain engine components (i.e. ignition
system and carburettor).
After complete shut-off of the engine, you may experience
diffi culties restarting the chainsaw due to this condition,
which is completely normal. Thus, please allow the product
to cool down before restarting.
Causes and operator prevention of kickback:
Kickback may occur when the nose or tip of the guide bar
touches an object, or when the wood closes in and pinches
the saw chain in the cut.
Tip contact in some cases may cause a sudden reverse
reaction, kicking the guide bar up and back towards the
operator.
Pinching the saw chain along the top of the guide bar may
push the guide bar rapidly back towards the operator.
Either of these reactions may cause you to lose control of
the saw which could result in serious personal injury. Do
not rely exclusively upon the safety devices built into your
saw. As a chainsaw user, you should take several steps to
keep your cutting jobs free from accident or injury.
Kickback is the result of tool misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below:
Maintain a firm grip, with thumbs and fingers
encircling the chainsaw handles, with both hands
on the saw and position your body and arm to allow
you to resist kickback forces. Kickback forces can
be controlled by the operator, if proper precautions are
taken. Do not let go of the chainsaw.
Do not overreach and do not cut above shoulder
height. This helps prevent unintended tip contact and
enables better control of the chainsaw in unexpected
situations.
Only use replacement bars and chains specified
by the manufacturer. Incorrect replacement bars and
chains may cause chain breakage and/or kickback.
Follow
the
manufacturer's
instructions for the saw chain. Decreasing the depth
gauge height can lead to increased kickback.
INSTRUCTIONS CONCERNING THE PROPER TECH-
NIQUES FOR BASIC FELLING, LIMBING, AND CROSS-
CUTTING
Understanding the forces within the wood
When you understand the directional pressures and
stresses inside the wood you can reduce the "pinches" or at
least expect them during your cutting. Tension in the wood
means the fi bers are being pulled apart and if you cut in
this area the "kerf" or cut will tend to open as the product
goes through. If a log is being supported on a saw horse
and the end is hanging unsupported over the end then
tension is created on the upper surface due to the weight
of the overhanging log stretching the fi bers. Likewise, the
underside of the log will be in compression and the fi bers
are being pushed together. If a cut is made in this area the
kerf will have the tendency to close up during the cut. This
would pinch the blade.
Felling a tree
See page 323 - 324.
When bucking and felling operations are being performed
by two or more persons at the same time, the felling
operations should be separated from the bucking operation
by a distance of at least twice the height of the tree being
felled. Trees should not be felled in a manner that would
endanger any person, strike any utility line or cause any
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