Checking The Chain Tension; Checking The Chain Lubrication; Working Behaviour And Working Technique (09 - 13) - AL-KO CSA 4020 Betriebsanleitung

GB
5.2

Checking the chain tension

Frequently check the chain tension, because new
saw chains stretch.
1. Pull through the saw chain a little by hand
and, while doing so, check:
■
When cold: The saw chain has been ten-
sioned correctly when it can be lifted by
approx. 3 – 4 mm in the middle of the
guide rail and can be pulled though easily
by hand. At operating temperature, the
saw chain stretches and hangs down.
■
The drive links of the saw chain are not
allowed to come out of the groove on the
underside of the guide rail – otherwise
the saw chain could jump off.
2. Re-tension the saw chain if necessary (see
chapter 4.2 "Tensioning and slackening the
saw chain (07)", page 38).
5.3

Checking the chain lubrication

Check the function of the automatic chain lubrica-
tion by switching on the polemounted pruner and
pointing its tip towards a piece of cardboard or
paper placed on the ground.
IMPORTANT!
Danger of damage to the
appliance
Ground contact invariably
leads to blunting of the
saw chain.
■
Do not make contact
with the ground with the
chain and maintain a
safety distance of
20 cm.
1. Switch on the appliance.
2. Hold the tip of the guide rail in the direction of
a cardboard box or paper on the ground.
■
If the check produces a growing trace of
oil, this indicates the automatic oiling
function is operating correctly.
■
If there is no trace of oil even though the
oil tank is full: Clean the oil entry hole in
the appliance and the groove of the guide
rail.
40
Working behaviour and working technique (09 – 13)
If this is not successful, please contact our cus-
tomer service.
6 WORKING BEHAVIOUR AND
WORKING TECHNIQUE (09 – 13)
WARNING!
Increased risk of falling
There is a greater risk of
falling if work is carried out
from an elevated position
(e.g. ladder).
■
always work with the
appliance from the
ground and make sure
that you are standing
securely.
■
Heed the safety instruc-
tions.
■
Where possible, stand so that the cut can be
carried out at an angle of 90° to the branch
(09/a).
■
Saw off thick branches in sections in order to
have better control over the point of impact
(10/1).
■
Never saw in the flaring at the beginning of
the branch in order to improve the healing of
the wound and to avoid rot (11).
■
Press (12/a) the polemounted pruner against
the branch (12/2) with the tree grip (12/1)
when sawing to stabilise it on the branch.
■
Before the branch is sawn off (13/b), make a
relief cut (13/a) on the underside of the
branch. This can avoid the bark tearing off
and causing difficult-to-heal damage to the
tree. The relief cut should not be deeper than
1/3 of the branch thickness to avoid any trap-
ping of the polemounted pruner.
■
Always pull the polemounted pruner with ro-
tating saw chain out of the branch so that it
does not become trapped.
CSA 4020