15
• Make a notch at the side of the fall, one third of the trunk diameter
deep (g. N).
• Make a felling cut at the side opposite to the previously made felling
notch, and a little higher than lower surface of the notch.
• Insert wedges on time to avoid pinching of the saw chain.
• Fell the tree by driving a wedge rather than cutting through the
whole trunk.
When felling trees observe all safety rules and do as follows:
• When the chain is pinched, switch o the chain saw and release
the chain with a wedge. Wedge should be made of wood or
plastic. Never use steel or cast iron wedge.
• Falling tree may pull other trees.
• Danger zone radius is 2.5 height of the falling tree (g. M).
• If the operator is inexperienced or amateur it is recommended
to have a training rather than gaining the experience without
supervision.
Do not fell trees when:
• Conditions in danger zone cannot be determined due to fog, rain,
snow or darkness.
• Line of tree felling cannot be determined due to wind or wind
blows.
CUTTING THROUGH TRUNKS
• Press the bumper spike (19) against the material and make a cut (g.
O).
• If the cutting cannot be nished even after the chain saw range is fully
utilized, do as follows:
• Move the guide bar back from the cut material to a certain distance
(with cutting chain still operating) and move the main handle (12) a
little down, support the bumper spike (19) and nish the cut by lifting
the main handle (12) a little.
CUTTING A TRUNK LYING ON THE GROUND
• Always keep good feet and ground grip. Do not stand on the trunk.
• Watch out for possibility of the trunk rotation.
• Observe manual guidelines related to work safety to avoid the
chain saw recoil.
• Always nish cutting at the side opposite to compressive stress
to avoid pinching the chain in kerf.
• Before starting to work check the stress direction in the trunk that is
to be cut, to avoid pinching chain of the saw.
• To eliminate stress, the rst cut should be made at the tension side.
• When cutting a trunk that is lying on the gound, rst make a cut deep
1/3 of the trunk diameter, then turn the trunk over and nish cutting
at the opposite side.
• When cutting a trunk that is lying on the ground, do not allow to sink
the cutting chain into the ground under the trunk. Negligence may
cause immediate damage to the chain.
• When cutting trunk that is lying on the slope, the operator should
always be at the slope side above the trunk.
CUTTING A TRUNK LIFTED ABOVE THE GROUND
In case the log is supported or placed on stable sawing horse,
depending on the place of operation, make the cut 1/3 of the trunk
diameter deep on the side under tension and nish cutting on the
opposite side (g. P and R).
TRIMMING / CUTTING BUSHES AND TREE BRANCHES
• Start cutting branches of a felled tree at its base and continue towards
top of the tree. Do small branches with a single cut.
• First, check which way the branch bends. Then make a cut from the
inside of the bend and nish cutting on the opposite side. Be careful,
the branch being cut may spring back.
• When trimming tree branches, always cut downward to enable free
fall of cut branch. However, sometimes undercutting the branch from
the bottom may be helpful (g. S).
• Be very careful when cutting a branch that may be under stress. Such
branch may spring aside and hit the operator.
Do not cut branches when climbing up the tree. Do not stand on
ladder, platforms, logs or positions that may cause loss of balance
and control over the chain saw. Do not cut above level of your
shoulders. Always hold the chain saw with both hands.
OPERATION AND MAINTENANCE
Ensure the engine is switched o and is cold before cleaning,
checking or repairing the chain saw. Disconnect wire from the
ignition plug to prevent accidental start up of the engine.
STORAGE
• Empty the fuel system before deciding to store the tool for more than
one month.
• Drain fuel from the fuel tank, start the engine and allow it to use all
remaining fuel and stop working.
• Use new fuel each season. Never use any cleaning agents on fuel tank,
it may damage the engine.
• Pay special attention to keep the ventilation holes of the engine
casing pervious.
• Clean plastic parts with mild detergent and a sponge.
• You can proceed with maintenance actions only described within
this instruction manual. Any other action can be carried out only by
authorized service.
• Do not make any changes in chain saw construction.
• When not in use, chain saw should be stored clean, on at surface, in
dry place and beyond reach of children.
When storing it is important to avoid deposition of rubber particles in
basic parts of the fuel system, such as carburettor, fuel lter, fuel line
and fuel tank. Fuels with alcohol additives (ethanol or methanol) may
absorb moisture, and that during storing causes separation of fuel
blend ingredients and formation of acids. Acidic petrol may damage
the engine.
AIR FILTER
Dirty air lter reduces eciency of combustion engine and causes
increase of fuel consumption. Clean the air lter after each 5 hours of
the saw operation.
• Clean the air lter lid (4) and its surroundings, so the dirt does not get
into carburettor chamber after the lid is removed.
• Unscrew knob for air lter lid (3) and remove air lter lid (4).
• Remove air lter (d) (g. T).
• Use water with soap to clean the lter, wash with clean water and dry
thoroughly.
• Install air lter. Ensure the grooves on the air lter rim match
protrusions on the air lter lid (4).
• When installing the air lter lid (4) make sure to properly place ignition
plug wire and access sleeves for carburettor adjustment screws.
Do not wash the air lter in petrol or any other ammable solvent to
avoid re hazard or appearance of dangerous vapours.
CYLINDER FINNING
Dust deposition on the cylinder nning may cause motor overheating.
Check regularly and clean the cylinder nning when carrying out
maintenance of the air lter.
GUIDE BAR AND CHAIN
Check condition of the guide bar and chain every 5 hours of the saw
operation.
• Set the ignition switch (14) to o position.
• Loosen and unscrew the guide bar xing nuts (7).
• Remove the casing (10) and disassemble guide bar (20) and chain
(21).
• Clean oil holes and groove (e) in the guide bar (20) (g. U).
• Lubricate tip chain wheel of the guide bar (22) through the hole (f)
located on the guide bar tip (g. W).
• Check condition of the chain (21).
CHAIN SHARPENING
Pay attention to cutting tools. Cutting tools should be sharp and clean, it
allows ecient and safe operation. Operating the saw with blunt chain
causes quick wear of the chain, guide bar and driving chain wheel,
and breaking the chain in the worst case. That is why it is important to
sharpen the chain on time.
Chain sharpening is a complex operation. Sharpening the chain by
yourself requires use of special tools and skills. It is recommended to
entrust sharpening the chain to qualied persons.
FUEL FILTER
• Unscrew the fuel ller plug (15).
• Use wire hook to remove the fuel lter (g) through the fuel ller hole
(g. X).
• Disassemble the fuel lter and wash it in petrol or replace with a new
one.
• Install the fuel lter in the tank.
• Tighten the fuel ller plug (15).
When the lter has been dismantled use the wire hook to hold up the
end of the suction line.
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