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connection cable and extension cable for
damage. Only use mains connection cables and
extension cables in perfect condition.
In order to prevent kickback, please follow these safety
instructions:
Never cut with the tip of the guide bar! Be careful
when continuing cuts you are already working on!
Always start cuts with the chain saw already running.
Make sure that the saw chain is always properly
sharpened.
Never cut through more than one branch at a time!
When lopping off branches, be careful not to touch
any other branches.
When cross-cutting, pay attention to trunks standing
very close to each other. If possible use a sawing
trestle.
Releasing the chain brake
To be able to use the chain saw after the brake was
engaged, the chain brake must be unlocked. Switch the
chain saw off by releasing the trigger. Then pull the chain
brake (2) back towards you to until it locks into place. The
chain will now move when it is switched on.
Holding the chain saw (Fig. 8)
Always grip both handles with the thumbs and fingers
encircling the handles. Ensure that your left hand is
holding the handle so that your thumb is underneath.
Starting for operation
Before starting for operation, you shall check the
power supply cord, and connect to the mains power;
Start the machine: firstly pressure the Safety lock-off
button (5), and then pressure the switch trigger (6).
Stop operation
1) Normal stop: the chain will stop when the finger releas
the switch trigger;
2) Chain brake stop: when the chain brake is pushed
forward by hand, chain will automatically be broken
to stop.
Using the chain saw
Always be sure of your footing and hold the chain saw
firmly with both hands while the motor is running.
BASIC FELLING, LIMBING and CROSS-CUTTING
TECHNI UES
Felling a tree (Fig. 9)
When bucking and felling operations are being performed
by two or more persons at the same time, the felling
operation should be separated from the bucking
operation by a distance of at least twice the height of the
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tree being felled. Trees should not be felled in a manner
that would endanger any person, strike any utility line
or cause any property damage. If the tree does make
contact with any utility line, the utility company should be
notified immediately.
The chain saw operator should keep on the uphill side of
the terrain as the tree is likely to roll or slide downhill after
it is felled an escape path
An escape path should be planned and cleared as
necessary before cuts are started. The escape path
should extend back and diagonally to the rear of
expected line of fall as illustrated in Fig. 9.
Before felling is started, consider the natural lean of
the tree, the location of larger branches and the wind
direction to judge which may the tree will fall.
Remove dirt, stones, loose bark, nails, stapes and wire
from the tree.
Notching undercut (A notch cut in a tree to direct the
fall) (Fig.10)
Make the notch 1/3 the diameter of the tree,
perpendicular to the direction of falls. Make the lower
horizontal notching cut first, this will help to avoid
pinching of either the saw chain or the guide bar when
the second notch is being made.
Felling back cut (the final cut in a tree felling
operation, made on the opposite side of the tree from
the notching undercut) (Fig.10)
Make the felling back cut at least 50mm higher than the
horizontal notching cut. Keep the felling back cut parallel
to the horizontal notching cut. Make the felling back cut
so enough wood is left to act as a hinge. The hinge wood
keeps the tree from twisting and falling in the wrong
direction. Do not cut through the hinge. As the felling
cut gets close to the hinge, the tree should begin to fall.
If there is any chance that the tree may not fall in the
desired direction or it may rock back and bind the saw
chain, stop cutting before the felling back cut is complete
and use wedges of wood, plastic or aluminium to open
the cut and drop the tree along the desired line off all.
When the tree begins to fall remove the chain saw from
the cut, stop the motor, put the chain saw down, and then
use the retreat path planned. Be alert for overhead limbs
falling and watch your footing.
Limbing a tree (Fig.11)
Limbing is removing the branches from a fallen tree.
When limbing, leave larger lower limbs to support the
log off the ground. Remove the small limbs in one cut.
Branches under tension should be cut from the bottom
up, to avoid binging the chain saw.
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