GRAPHITE 58G953 Traducción Del Manual Original página 14

adjust the carburettor ensure new air filter and fuel filter are installed
and tank is filled with appropriate fuel blend.
Adjust the carburettor with guide bar and chain installed.
• Screw in both adjustment screws (L and H) (16) until stop (do not
overtighten) (fig. G).
• First, unscrew two adjustment screws (16) as specified below:
- L screw: by 1 1/4 of a turn
- H screw: by 1 3/8 of a turn
• Start up the engine and allow it to heat up while holding throttle lever
(11) pressed in half.
• After the engine has been heated, release pressure on the throttle
lever (11) and allow the engine to run slowly.
• Turn the screw (L) slowly clockwise until idle run achieves its
maximum speed, then turn the screw counter-clockwise by 1/4 of a
turn.
• Turn low speed adjustment screw (T) (17) counter-clockwise until the
chain stops moving. When slow speed appears to be too low, turn the
screw clockwise (fig. G).
Avoid touching the muffler. Hot muffler may cause severe burns.
CHAIN BRAKE
The saw features automatic brake, which stops the chain in case of recoil
during chain saw operation. The brake engages automatically when
force of inertia is applied to a weight located inside the brake casing.
The chain brake can also be switched on manually, when the brake lever
(6) is moved towards the guide bar (20). Switching the chain brake stops
the chain movement in 0.12 sec.
BRAKING CHECK
Ensure the brake operates correctly before each use of the saw.
• Put operating saw on the ground and open the throttle fully for 1 – 2
seconds to allow the saw engine to operate at its maximum speed.
• Push the brake lever (6) forward. The chain should stop immediately.
• In case the chain stops slowly or does not stop at all, replace the brake
band and clutch drum before using the chain saw again.
• To release the brake, pull the brake lever (6) towards the main handle
(12) so you can hear sound typical of blockade snapping.
Ensure the chain brake operates correctly and the chain is sharp. It is
very important for keeping potential recoil at a safe level.
CHECKING BRAKE ENGAGEMENT
During this check the saw engine should be switched off.
• Lift the saw while holding the front handle (5) and main handle (12)
approximately 35 cm above wooden object.
• Let the front handle (5) go and allow the guide bar to tilt under its
own weight and touch the wooden object (fig. H).
• At the contact with the wooden object, the chain brake should
engage (brake lever (6) moves forward to the ON position).
Ensure the chain brake operates correctly before starting any task.
In case the brake does not operate efficiently, adjust it or repair in
authorized service site.
In case the engine operates at high speed with the chain brake
switched on, the saw clutch will overheat. When the chain brake
engages during operation of the engine, release the throttle lever
immediately and keep engine speed at low level.
CHAIN TENSION ADJUSTMENT
Cutting chain tends to lengthen during operation due to higher
temperature. Longer chain loosens and may slip off the guide bar.
• Loosen the guide bar fixing nuts (7).
• Ensure the chain (21) remains in the guiding groove of the guide bar
(20).
• Use a screwdriver to turn the chain tension adjustment screw (8)
clockwise, until the chain is strained appropriately (it should slightly
hold the guide bar in horizontal position).
• Check the chain tension again (it should be possible to lift the chain
by approximately 3 – 4 mm in the middle of the guide bar) (fig. I).
• Tighten firmly the guide bar fixing nuts (7).
Do not over-tension the chain. Adjustment of overly heated chain
may lead to excessive tension when cooling down.
OPERATING THE CHAIN SAW
• Before starting any planned task, familiarize yourself with section
describing safe rules for chain saw operation. It is recommended to
gain experience by cutting waste wood pieces. It will also allow to
find out the chain saw possibilities.
• Always observe safety regulations.
• Use the chain saw only for cutting wood. Cutting other materials is
forbidden.
• Intensity of vibrations and recoil change depending on the type of
wood being cut.
• Do not use the chain saw as a lever to lift, move or split objects. When
the chain is pinched in wood, switch off the engine and drive wooden
or plastic wedge into the processed piece to release the chain saw
(fig. J). Start the tool again and commence cutting carefully.
• Do not fix the saw to a stationary work station.
• Attaching other devices, which are not allowed by the chain saw
manufacturer, to the chain saw drive is forbidden.
• It is not necessary to apply big force to the chain saw when using
the tool. Apply light pressure only while the engine operates with the
throttle fully opened.
When the chain saw is pinched in kerf during cutting, do not remove
it forcefully. It may cause loss of control over the chain saw, operator
injury and/or damage to the chain saw.
Release the chain brake before starting to work.
• Press the throttle lever lock (1) and throttle lever (11) (wait until
engine reaches its full speed before starting to cut).
• Keep maximum speed for the whole time.
• Allow the chain to cut wood. Press down the saw lightly (fig. K).
• Stop pressing the saw at the end of the cut to avoid loosing control
over the tool.
• When the cutting has been finished release the throttle lever (11) and
allow the engine to run idle.
• Switch off the engine before putting the chain saw away.
Keeping high speed of the engine when not cutting wood causes
unnecessary losses and wear of parts.
PROTECTION AGAINST RECOIL
Recoil is movement of the guide bar of the chain saw up and/or
back, which happens when the part of the chain on the guide bar tip
encounters an obstacle.
• Ensure the processed material is firmly fixed.
• Use clamps to fix the material.
• Hold the chain saw with both hands when starting up and during
operation.
• During recoil the chain saw cannot be controlled and the chain is
loosened (fig. L).
• Incorrectly sharpened chain increases risk of recoil.
• Do not cut above level of your shoulders.
Avoid cutting with guide bar tip, it may cause sudden recoil – to the
back and up. Always use complete safety equipment and appropriate
working clothes when operating the chain saw.
Disassembly of protections, inappropriate operation, maintenance,
improper guide bar or chain replacement may contribute to increase
of risk of body injury in case of a recoil. Never modify the saw in any
way. By using modified chain saw, the user looses all warranty rights.
Warranty voids also when the chain saw is used inaccordingly to
information contained in this manual.
CUTTING PIECES OF WOOD
When cutting wood follow guidelines for safety of work and do as
follows:
• Ensure the wood piece cannot be moved.
• Use clamps to fix short pieces of material before cutting.
• Cut wood or wood-like materials only.
• Before cutting ensure the chain saw will not come into contact with
stones or nails, as it could cause pulling the saw out and damage to
the chain.
• Avoid situations when working saw might touch wired fence or
ground.
• When cutting branches support the saw as much as possible and do
not cut with the tip of the guide bar.
• Watch out for obstacles such as protruding stumps, roots, hollows and
holes in the ground, as they may be cause of an accident.
FELLING A TREE
Define the tree fall line. Consider wind, lean of the tree, location of heavy
branches, complexity of work after tree fall and other factors.
• When tidying area around the tree remember to ensure proper
ground grip and escape path to use when the tree falls.
• Predict and tidy up two escape paths at 45
the line opposite to expected line of the tree fall. There must be no
obstacles on these paths (fig. M).
14
angle, counting from
0