Inhaltsverzeichnis
Werbung
Verfügbare Sprachen
Verfügbare Sprachen
Chain sharpening
Fig. 17-18
A.General information about sharpening the chain
Never saw with a blunt chain. The chain is blunt when
you have to push the chain saw into the tree and the
chips are very small. The saw-link is the part of the
chain which does the sawing (Fig. 17). The height-
distance between the tooth A and the ridge B is the
cutting-depth. When sharpening the chain you have to
consider the next points (Fig.18):
•
File-angle
•
Cutting-angle
•
File-position
•
Diameter of round file
•
File-depth
For correct sharpening of the chain you need good
tools; for example a mould to obtain a correct file-
angle.
Warning! The risk of kick-back increases
when:
•
file-angle is too big
•
cutting-angle is too small
•
diameter of round file is too small
B. Sharpening the tooth
Fig. 19
To sharpen the teeth of the saw you need a round file
and a file mould. Consult a specialist store in chain
saws for these items.
1.
Check if the chain is stretched out completely.
Otherwise the chain is not stable enough and
cannot be sharpened correctly.
2.
Always file from the inside of the tooth to the
outside. Always lift up the file when you start
sharpening another tooth. First file all teeth on one
side, turn round the chain saw and then file the
teeth on the other side.
3.
After filing, the teeth should all have the same
length. When the length of the teeth is only 4 mm,
the chain is worn and should be replaced.
C. The cutting-depth
When you sharpen the teeth, the cutting-depth will
decrease. To maintain the maximum saw capacity, the
ridge (B) has to be lowered. To attain a perfect cutting-
depth you should use also a depth-mould. Consult a
specialist store in chain saws for the specific tool and
measurements. Adjusting the cutting-depth has to be
done directly after the teeth are sharpened. You use a
flat file and a depth-mould for this. The cutting-depth is
correct when you don't feel resistance anymore, while
moving the file across the mould.
Chain tension
Check the chain tension frequently and adjust as
often as necessary to keep the chain snug on the bar,
but loose enough to be pulled around by hand. (See
Section Saw Chain Tension Adjustment).
Breaking in a new saw chain
A new chain and bar will need readjustment after as
few as 5 cuts. This is normal during the break-in period,
and the interval between future adjustments will begin
to lengthen quickly. Over a period of time, however,
the moving parts of the saw chain will become worn,
resulting in what is called chain strength. This is normal.
When it is no longer possible to obtain correct chain
tension adjustment, a link will have to be removed to
shorten the chain. See your Ferax Authorized Service
Center to have this repair performed.
Warning! Never have more than 3 links
removed from a loop of chain this could
cause damage to the sprocket.
Chain lubrication
Always make sure the automatic oiler system is
working properly. Keep the oil tank filled with special
chainsaw oil. Adequate lubrication of the bar and chain
during cutting operations is essential to minimize
friction with the guide bar. Never starve the bar and
chain of lubricating oil. Running the saw dry or with too
little oil will decrease rapid cutting efficiency, shorten
saw chain life, cause rapid dulling of the chain, and
lead to excessive wear of the bar from overheating.
Too little oil is evidenced by smoke or bar discoloration.
Preventative maintenance servicing a double
insulated appliance
In this double insulated appliance, 2 systems of
insulation, instead of grounding, are provided. No
grounding means is provided on a double insulated
appliance, nor should a means for grounding be added
to the appliance. No serviceable parts are inside. A
double insulated appliance is marked with the words,
"Double Insulation" or "Double Insulated". The symbol
may also be marked on the appliance.
1.
Place switch in "off" position and unplug the power
supply before the appliance is serviced, cleaned,
or maintenance is performed.
2.
Keep the air intake clean and air vents free of
debris to avoid overheating the motor.
3.
Clean with a damp sponge and mild soap. Do not
squirt with a water hose or douse with water or
other liquids.
4.
Inspect the saw chain for proper tension before
each use and frequently during cutting. Sharpen
as required.
5.
Clean the guide bar and bar pad to ensure free
path for oil.
6.
Turn the bar over after each use to achieve even
wear.
7.
No motor lubrication is necessary. The motor is
equipped with lifetime lubricated bearings.
8.
If the saw does not operate, turn switch to OFF
position and disconnect the extension cord, first
from the power supply, then from the saw. Check
the power supply for blown fuses or tripped circuit
breakers. If it still does not operate, contact your
dealer. Do not attempt to repair it yourself. No
serviceable parts are inside.
GB
15
Werbung
Inhaltsverzeichnis
