Cleaning The Chain Sprocket Interior; Changing Over The Quick-Tension Chain Wheel (27); Checking, Turning And Greasing The Guide Rail (28, 29); Chain Maintenance Table - AL-KO solo CS 4235 Mode D'emploi

Maintenance and care
to the specific chain type (see chapter 8.6 "Chain
maintenance table", page 51). A certain amount
of skill and experience is necessary to avoid
damage to the teeth.
To sharpen the saw chain:
1. Switch off the chain saw and remove the re-
chargeable battery.
2. Release the chain brake.
3. Clamp the guide rail with fitted saw chain in a
suitable vice, taking care that the saw chain
can move freely.
4. Tension the chain if it is slack.
5. Place the file in the corresponding guide and
then guide the file through the opening of the
tooth making sure that you keep an even an-
gle according to the tooth profile.
6. Only perform a few strokes of the file and ex-
clusively in the forwards direction, then re-
peat the working step on all teeth in the same
orientation (right or left).
7. Reverse the position of the guide rail in the
vice and repeat the working step on the re-
maining teeth.
8. Check that the limit tooth does not project be-
yond the checking tool, and file off any pro-
jection using a flat file, then round down the
profile.
9. After sharpening, clean away all filings and
dust, then lubricate the saw chain in an oil
bath.
The chain must be renewed if:
■
The length of the teeth is less than 5 mm;
■
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.
8.3

Cleaning the chain sprocket interior

Thoroughly clean the chain saw after each use.
1. Remove the rechargeable battery and place
the chain saw 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.
469892_a
8.4 Changing over the quick-tension chain
wheel (27)
1. Remove guide rail (27/1). Remove screw
(27/2) and release the adapter sheet metal
from the guide rail with the tensioning hook
(27/3).
2. Turn the guide rail around the longitudinal ax-
is.
3. Attach the adapter sheet metal to the guide
rail with the tensioning hook again and fix in
place with the Phillips screw again.
4. Install the guide rail again, see chapter 4.1
"Installing the guide rail (02, 03)", page 43.
8.5 Checking, turning and greasing the
guide rail (28, 29)
Checking the guide rail
Regularly check the guide rail for damage. If nec-
essary, remove protruding burrs (28/1), i.e. file off
at an angle of 45° (28/2).
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. Change over the quick-tension chain wheel
on the guide rail, see chapter 8.4 "Changing
over the quick-tension chain wheel (27)",
page 51.
2. Turn the guide rail.
Greasing the guide rail
1. Carefully clean groove in rail (28/3) and oil in-
let bores (28/4).
2. Carefully clean lubricating hole (29/1) from
both sides.
3. Use a grease gun (29/2) 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.
8.6

Chain maintenance table

WARNING!
Danger of serious injury.
Use of an unapproved saw chain or
guide rail on the chain saw can result in
serious injuries.
■
Use only approved saw chains and
guide rails.
51