Manual Greenworks GD80CS50 - 2000507 (page 21 of 260) (All languages)

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WARNING

Never operate the chain saw without suffi cient chain

lubrication as this might damage the saw and is a threat

to safety. Check the chain lubricant level before each use!

In order to prevent kickback, please follow these safety

instructions:

Never cut with the tip of the guide bar! Be careful when

continuing from previous cuts.

Always start cutting only when the chain saw is 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.

HOLDING THE CHAIN SAW

Always hold the chain saw with your right hand at the

rear handle and your left hand at the front handle.

Grip both handles with the thumbs and

the handles. Ensure that your left hand is holding the front

handle so that your thumb is underneath.

STARTING OPERATION

OPERATING THE CHAIN BRAKE

Before

Press the on/off switch (item 43), this makes the

switch trigger operational.

starting for operation, you should install the

battery pack in the machine.

Start the machine:

Press

the Safety lock-off button (item

4), and then pressure the switch trigger (item 5).

STOPPING OPERATION

Release the power switch trigger (item 5) to stop the

chain saw.

USING THE CHAIN S

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

TECHNIQUES

See figure 9

See figure 22

See figure 8

See figure 11

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 should be planned and cleared as

necessary before cuts are started. The escape path

should extend back and diagonally to the rear of the

expected line of fall.

Before felling is started, consider the natural lean of the

tree, the location of larger branches and the wind direction

to judge which way the tree will fall.

Remove dirt, stones, loose bark, nails, and staples from

the tree.

NOTCHING UNDERCUT (A NOTCH CUT IN A TREE TO

DIRECT THE FALL)

See Figure 10

Make the notch 1/3 in 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)

See Figure 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 as to leave enough wood 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 of fall. 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 as planned. Be alert of overhead limbs falling and

watch your footing.

LIMBING A TREE

Limbing is removing the branches from a fallen tree. When

limbing, leave the larger lower limbs to support the log off

the ground. Remove the small limbs in one cut. Branches

RCS36-23lgs manual.indd 18 2010/12/30 3:14

FELLING A TREE

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 tree being

felled. Trees should not be felled in a manner that would

Check the operating condition of the chain brake

prior to each use.



Engage the chain brake by rotating your left

hand around the front handle, allowing 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 saw handles at all times.



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.

WARNING

If the chain brake do not stop the chain immediately, or if

the chain brake will not stay in the run position without

assistance, take the saw to an authorized service center

for repair prior to use.

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Greenworks GD80CS50 - 2000507 Manual

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