Kraissmann 4000AKS-BL36Li, User Manual

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18 | English Cordless chain saw | 19
to the top to prevent the saw from becoming trapped.
Cutting the tree trunk into lengths
Here we are looking at the process of cutting the felled
tree into sections. Make sure you have a sure footing and
distribute your body weight evenly onto both feet. If pos
-
sible the trunk should be underlaid and supported with
branches, beams or wedges. For easy cutting follow the
simple ins tructions below.
If the full length of the tree trunk is evenly supported
as shown in Fig. 19 then proceed by cutting from the top
down. Take care not to cut into the ground in the process.
If the weight of the tree trunk is resting on one end as
shown in Fig. 20, fi rst cut through 1/3 of the trunk di
-
ameter from the underside (A) in order to prevent it from
splintering. Make the second cut from the top (2/3 of the
diameter) to the height of the fi rst cut (B) (this prevents
the chainsaw from being trapped).
If the weight of the tree trunk is resting on both ends as
shown in Fig. 21, fi rst cut through 1/3 of the trunk diam
-
eter from the top (A) in order to prevent it from splin -
tering. Make the second cut from underneath (2/3 of the
diameter) to the height of the fi rst cut (B) (this prevents
the chainsaw from being trapped).
When working with the saw on a slope, always position
yourself at a higher point on the slope above the tree as
shown in Fig. 15. In order to retain full control at the mo
-
ment when the cut goes through, reduce pressure towards
the end of the cut without releasing your fi rm grip on
the handles of the chainsaw. Take care to ensure that the
chainsaw does not touch the ground.
After completing the cut, wait for the chain saw to come
to a standstill before removing the chainsaw. Always
switch off the motor of the chainsaw before moving from
tree to tree.
KICKBACK
The term “kickback” describes what happens when the
running chainsaw suddenly kicks upward and backward.
Usually, this is caused by contact between the tip of the
cutter rail and the workpiece or the saw chain becoming
trapped. In the event of kickback, large forces occur sud-
denly and violently. As a result, the chainsaw usually re
-
acts uncontrollably. This can often result in very serious
injuries to the worker or persons in the vicinity.
The risk of kickback is particularly great when performing
cross cuts, angled cuts and longitudinal cuts, as it is not
possible to use the claw stop on these cuts. You should
therefore avoid these cuts as far as possible and take
particular care when they are unavoidable.
The risk of kickback is at its greatest when the saw is po -
sitioned for a cut in the region of the tip of the cutter
rail, as the leverage eff ect is greatest there (Fig. 22). It is
therefore safest to position the saw fl at and as close as
possible to the claw stop before making the cut (Fig. 23).
Warning!
▶ Make sure that the chain tension is always correct -
ly adjusted.
▶ Only use a chainsaw if it is in perfect working order.
▶ Only work with a saw chain that has been properly
sharpened in accordance with the instructions.
▶ Never operate the saw above shoulder height.
▶ Never cut with the upper edge or the tip of the sword.
▶ Always hold the chainsaw firmly with both hands.
▶ Whenever possible, use the claw stop as a leverage
point.
Cutting wood which is under tension
Special care is required when cutting wood which is un -
der tension. Wood which is under tension from which it
is released by cutting may in some cases react completely
unpredictably and uncontrollably. In the worst case this
could result in extremely severe or even fatal injuries
(Fig. 24-26).
This type of work must only be performed by persons who
have been specially trained.
CLEANING AND MAINTENANCE
Danger!
▶ Remove the battery each time before cleaning.
▶ Never immerse the unit in water or other liquids in or -
der to clean it.
CLEANING
▶ Regularly clean the clamping mechanism by blowing it
out with compressed air or cleaning it with a brush. Do
not use tools for cleaning.
▶ Keep the handles free of grease so that you can main -
tain a firm grip.
▶ Clean the device as required with a damp cloth and, if
necessary, mild washing up liquid.
▶ If the chainsaw is not to be used for an extended period
of time then you should remove the chain oil from the
tank. Briefly immerse the saw chain and the cutter rail
in an oil bath and then wrap them in oil paper.
MAINTENANCE
Replacing the saw chain and cutter rail The cutter rail
needs to be replaced if:
▶ the guide groove of the cutter rail is worn;