AL-KO EKI 2200/40, Instructions For Use Manual

Page: 45 / 412

440105_f 45
Maintenance and care
Independent sharpening
CAUTION! Danger of injury from the saw
chain! The sharp edges of the saw chain can
cause serious laceration injuries.
■
Wear protective gloves when resharpening
the saw chain.
IMPORTANT! Damage to the machine due
to incorrect sharpening! Uneven cutting teeth
mean that the chain runs roughly and may even
break. All cutting teeth must have the same
length and width after sharpening.
■
Sharpen the saw chain properly.
Cutting link (15/1) has a cutting tooth (15/2) and a
depth limiter (15/3).
Tools
You can sharpen the saw chain yourself using
special round files whose diameters are adapted
to the specific chain type (see
chapter 8.7 "Chain
maintenance table", page 46 ). A certain amount
of skill and experience is necessary to avoid
damage to the teeth.
Only use suitable tools for sharpening (available
from specialist dealers):
■
Chain file (see above)
■
File guide
■
Chain gauge
Procedure
1. Switch off the chain saw and disconnect from
the mains power supply.
2. Check the chain tension and adjust it if nec-
essary.
3. Release the chain brake.
4. Clamp the guide rail with fitted saw chain in a
suitable vice, taking care that the saw chain
can move freely.
5. Guide the file exerting slight pressure and
holding it upright from the inside to the out-
side of the cutting tooth. The file guide is
helpful in handling the file correctly. 2 – 3 file
strokes are sufficient.
6. When sharpening, maintain the angle at the
cutting tooth and the height of the depth limit-
er in relation to the cutter. Make sure that all
cutting teeth on the chain have equally length
and width after sharpening.
Note: If the prescribed tools are used and
handled correctly, the specified angle values
will be obtained automatically. The values
can be checked using a chain gauge.
7. Finally, slightly round off the front part of the
depth limiter.
8. After sharpening, clean away all filings and
dust, then lubricate the saw chain in an oil
bath.
Replacing the saw chain
The chain must be replaced if:
■
The length of the teeth is less than 5 mm (15/
x);
■
Where applicable: The mark on the teeth of
the cutting elements is exceeded;
■
The play on the links at the chain rivets is ex-
cessive.
8.4 Cleaning the chain sprocket interior
Thoroughly clean the chain saw after each use.
1. Disconnect the chain saw from the mains and
place it on a stable base.
2. Unbolt the cover of the chain sprocket.
3. Clean the inside with a suitable brush.
4. Remove the saw chain and take out the
guide rail.
5. Clean the groove in the rail and the oil inlet
bore.
8.5 Checking, turning and greasing the
guide rail (16, 17)
Checking the guide rail
Regularly check the guide rail for damage. If nec-
essary, remove protruding burrs (16/1), i.e. file off
at an angle of 45° (16/2).
Turning the guide rail
The guide rail must be turned over after each
chain sharpening and chain change in order to
avoid one-sided wear.
1. On EKI 2200/40, EKS 2400/40: Change over
the quick-tensioner on the guide rail ( see
chapter 8.6 "Changing over the quick-tension
chain wheel (18)", page 46
).
2. Turn the guide rail.
Greasing the guide rail
1. Carefully clean groove in rail (16/3) and oil in-
let bores (16/4).
2. Carefully clean lubricating hole (17/1) from
both sides.
3. Use a grease gun (17/2) to pump in sufficient
grease on both sides until the grease emerg-
es evenly at the tips of the sprocket. Keep
turning the sprocket when doing this.