Bedienungsanleitung Hitachi CS35Y (Seite 14 von 80) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Portugiesisch, Spanisch)

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○ Do not cut all the way thorough the wood by starting

from the bottom since there is the danger of the guide

bar ﬂ ying up out of control when the cut is ﬁ nished.

○ Always prevent the operating chain saw from touching

the ground or wire fences.

2. Branch cutting

(1) Cutting branches from a standing tree:

A thick branch should initially be cut oﬀ at a point away

from the trunk of the tree.

First cut in about one third of the way from below, and

then cut oﬀ the branch from above. Finally, cut oﬀ the

remaining portion of the branch even with the trunk of

the tree. (Fig. 18)

CAUTION

○ Always be careful to avoid falling branches.

○ Always be alert for chain saw recoil.

(2) Cutting branches from fallen trees:

First cut oﬀ branches that do not touch the ground, then

cut oﬀ those which touch the ground. When cutting

thick branches that touch the ground, ﬁ rst cut in about

half of the way from above, then cut the branch oﬀ from

below. (Fig. 19)

CAUTION

○ When cutting oﬀ branches which touch the ground, be

careful that the guide bar does not become bound by

pressure.

○ During the ﬁ nal cutting stage, beware of the log

suddenly rolling.

3. Log cutting

When cutting a log positioned as shown in Fig. 20, ﬁ rst

cut in about one third of the way from below, then cut

down all the way from above. When cutting a log that

straddles a hollow as shown in Fig. 21, ﬁ rst cut in about

two thirds of the way from above, then cut upward from

below.

CAUTION

○ Ensure the guide bar does not become bound in the log

by pressure.

○ When working on inclined ground, be sure to stand on

the uphill side of the log. If you stand on the downhill

side, the cut-oﬀ log may roll toward you.

4. Felling trees

(1) Undercut (1 as shown in Fig. 22):

Make undercut facing the direction in which you want

the tree to fall.

The depth of the undercut should be 1/3 of the tree’s

diameter. Never fell trees without proper undercut.

(2) Back cut (2 as shown in Fig. 22):

Make a backcut about 5 cm above and parallel to the

horizontal undercut.

If the chain becomes entangled during cutting, stop the

saw and use wedges to free it. Do not cut thorough the

tree.

CAUTION

○ Trees should not be felled in a manner that would

endanger any person, strike any utility line or cause any

property damage.

○ Be sure to stand on the uphill side of the terrain as the

tree is likely to roll or slide downhill after it is felled.

SHARPENING OF THE CHAIN BLADE

CAUTION

Ensure the power source has been disconnected from

the tool before performing the steps below.

Wear gloves to protect your hands.

Dull and worn chain blades will decrease the eﬃ ciency

of the tool and place unnecessary overload on the

motor and various parts of the machine. In order

to maintain optimum eﬃ ciency, it is necessary to

check the chain blades often and keep them properly

sharpened and adjusted. Blade sharpening and depth

gauge adjustment should be accomplished at the

center of the guide bar, with the chain properly mounted

to the machine.

1. Blade sharpening

The accessory round ﬁ le should be held against the

chain blade so that one-ﬁ fth of its diameter extends

above the top of the blade, as shown in Fig. 23.

Sharpen the blades by keeping the round ﬁ le at a 30°

angle in relation to the guide bar, as shown in Fig. 24,

ensuring that the round ﬁ le is held straight, as shown

in Fig. 25. Ensure that all saw blades are ﬁ led at the

same angle, or the cutting eﬃ ciency of the tool will be

impaired. Appropriate angles for sharpening the blades

correctly are shown in Fig. 26.

Keep all cutters the same length.

2. Adjustment of depth gauge

To perform this work, please use the optional accessory

depth gauge jointer and a standard ﬂ at ﬁ le obtainable in

local markets. The dimension shown in Fig. 27 is called

the depth gauge. The depth gauge dictates the amount

of incision (cut-in), and must be accurately maintained.

The optimum depth gauge for this tool is 0.635 mm.

After repeated blade sharpening, the depth gauge

will be decreased. Accordingly, after every 3-4

sharpenings, place the depth gauge jointer as shown in

Fig. 28, and ﬁ le away that portion that protrudes above

the upper plane of the depth gauge jointer.

MAINTENANCE AND INSPECTION

1. Inspecting the Chain

(1) Be sure to occasionally inspect the chain tension. If the

chain has become slack, adjust the tension as directed

in the section entitled “Adjusting the Chain Tension”.

(2) When the chain blades become dull, sharpen them

as directed in the section entitled “Sharpening of the

Chain Blade”.

(3) When sawing work has been completed, thoroughly oil

chain and guide bar by depressing the oil button three

or four times while the chain is rotating. This will prevent

rusting.

2. Cleaning the Guide Bar

When the guide bar groove or the oil hole becomes

clogged with sawdust, oil circulation becomes impaired,

which could result in damage to the tool. Occasionally

remove the chain cover and clean the groove and oil

hole with a length of wire, as shown in Fig. 29.

3. Cleaning the inside of side cover

Tension dial and knob operations will become sluggish

if sawdust or other foreign matter builds up inside the

side cover, and there are cases in which they will cease

to move completely. After using the chain saw and

after replacing the saw chain, etc., insert a ﬂ at-headed

screwdriver into the gap beneath the tension dial as

shown in Fig. 30, lift up the knob and tension dial and

slowly remove the screwdriver to clean the inside of the

side cover and remove all sawdust.

000Book_CS30Y_WE.indb 14000Book_CS30Y_WE.indb 14 2013/04/05 16:36:042013/04/05 16:36:04

Hitachi CS35Y Seite 14

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