Maintenance And Cleaning - IVT GCHS-38 Operating/Safety Instructions Manual

Gasoline chain saw

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Manual instruction | Gasoline chain saw

Sawing logs

•

Place the log on

supports (or use a

special saw- horse), as

shown on following

figures. The sawn-off

billet must fall down

freely,

without

jamming the cutting

unit.

•

When sawing short billets these must be fixed

securely (e.g. with the help of brackets).

•

Be especially careful when carrying out

longitudinal cuts, as in such case the notched rest

(3) cannot be used.

•

Stand higher than the log to be sawn or to the

side of It, when operating on slopes.

Sawing wood which is under mechanical pressure

•

Branches, trees or wooden materials which stay

under mechanical pressure and can be released

due to sawing, are characterized by an absolutely

unpredictable response and cause severe or even

lethal injury. In such cases be especially cautious.

Such operations can be performed only

by trained and skilled specialists.

•

If the billet is supported from both ends (look

figure on the left), the incision to 1/3 of thickness

must be first made from above (A), then the billet

must be sawn in the same location from below (B) to

prevent splitting the wood and jamming the cutting

unit of the machine. With this any contact of the saw

chain (1) with the ground must be avoided.

•

If the billet contacts the support from one end

only (look figure on the right) an incision to 1/3

of the thickness must be first made from below

(A) and then be sawn off completely in the same

location from above (B). Thus splitting the wood

and jamming the cutting unit of the machine can

be prevented.

Felling trees

•

Always wear a protective helmet to protect the

head from falling brushwood.

•

The machine can be used only for felling trees

with the trunk diameter less than the length of the

machine's cutting unit.

•

Bar access to the working area.

•

Never make attempts to release the machine

being jammed in the wood with the running engine.

Use wooden wedges by driving them into the wood

in order to release the saw chain.

•

Note:

determine the falling direction of the

tree beforehand, at that the center of gravity of the

crown of the tree and wind direction must be taken

into account.

•

Saw the incision (A) directed towards the falling

side of the tree. Such an incision must be as deep as

1/3 of the tree's diameter. After that the horizontal

cut (B) must be made from the opposite side of the

trunk, it must begin ca. 4 cm above the cut (A).

Do not saw the trunk completely!

•

Keep ca. 1/10 of the trunk diameter. If the tree

begins to fall, draw the cutting unit of the machine

out of the cut and step back or aside.

•

The working area round the trunk must be free

from any obstacles, at the same time, the operator

must have a safe support and ready retreat paths.

•

Now, when the sawing is over, the felling of the

tree must be initiated by driving the wedge (C) into

the horizontal cut (B).

•

When the tree begins to fall, beware of breaking

and falling branches and brushwood.