Publicité
• Pull the front hand guard (1) back as far as it will go to release
the chain brake (see fig. D).
• Remove the two fixing nuts (20) with the spark plug wrench
(31).
• Remove the chain cover (22).
• Slide the slotted hole of the guide rail (16) over the two pro-
truding pins.
• Place the saw chain (17) over the teeth of the chain wheel (26).
Insert the saw chain (17) accurately in the direction indicated
on the guide rail (16). In the tip of the guide rail (16) there is
a guide wheel into whose teeth the saw chain (17) must be
inserted.
• Pull slightly on the guide rail (16) to slightly pre-tension the
saw chain (17).
• Fit the chain cover (22) back on. Make sure that the internal
chain tensioning pin (23) fits into the matching hole (25) in the
guide rail (16). If necessary, adjust the chain tensioning screw
(21) with the slotted screwdriver (31).
• Screw on the two fastening nuts (20) by hand. However, make
sure that you do not tighten them yet.
• Use the slotted screwdriver (31) to turn the chain tensioning
screw (21) clockwise until the lower part of the saw chain (17)
slides into the guide rail (16). The saw chain (17) must be in
contact with the underside of the bar. When the chain brake
is released, it must be possible to pull the saw chain (17) over
the guide rail (16) by hand.
Note
A new saw chain (17) stretches and needs to be re-tensioned
more often.
• Tighten the two fixing nuts (20) with the spark plug wrench
(31).
13.9 Sharpening and maintaining the saw chain
m WARNING
Danger of injury!
The teeth of the saw chain are very sharp. In order to avoid
injuries, always wear thick gloves when in use!
Keep the saw chain in a good operating condition; effective
work with the chainsaw is only possible if the saw chain is
sharp, well lubricated and properly tensioned. This also reduc-
es the risk of kick-back.
The properly sharpened saw chain (17)
A properly sharpened saw chain (17) goes effortlessly through
the wood and requires very little pressure. Do not work with a
dull or damaged saw chain (17).
It increases physical exertion, magnifies the vibrations and
leads to unsatisfactory results as well as greater wear and tear.
• Clean the saw chain (17) regularly.
• Check the saw chain (17) for breaks in the links and damaged
rivets.
• Sharpening a saw chain (17) should only be carried out by
experienced users!
• Note the angles and dimensions specified below. If the saw
chain (17) is not properly sharpened or the depth gauge is
too small, there is a higher risk of kick-back effects and the
resulting injuries! The saw chain (17) cannot be fixed on the
guide rail (16). It is therefore best to remove the saw chain (17)
from the guide rail (16) and then sharpen it.
• Select a sharpening tool that is suitable for the chain pitch.
The chain pitch (e.g. 3/8") is marked in the depth gauge of each
blade.
Only use files specifically for saw chains!
Other files have the wrong shape and the wrong edge. Select
the diameter of the file according to your chain pitch. Be sure
to also note the following angles when sharpening the cutting
links.
A = file angle
B = angle of the side plate
Furthermore, the angle must be maintained for all cutting links.
If the angles are uneven, the saw chain (17) will run erratically,
wear out quickly and break prematurely.
Since these requirements can only be met with sufficient and
regular practice:
• Use a file holder.
• A file holder must be used when sharpening the saw chain
(17) by hand. The correct filing angles are marked on it.
1.
Hold the file horizontally (at the correct angle to the guide
rail (16) and file according to the angle marking on the file
holder. Support the file holder on the top plate and the
depth limiter.
2.
Always file the cutting link from the inside out.
3.
The file only sharpens as it moves forward. Lift the file off
as you move backwards.
4.
Do not touch the drive links or fastening links with the file.
5.
Turn the file regularly to avoid wear on one side.
6.
Use a piece of hard wood to remove the burr from cutting
edges.
All cutting links must have the same length, otherwise they will
also be of different heights.
This causes the saw chain (17) to run erratically and increases
the danger of breaking.
GB/IE/NI/CY/MT
15
Publicité
