GENERAL SAFETY PRECAUTIONS
14 – English
• Use the combination spanner to tighten the bar nuts 
while lifting the tip of the bar at the same time. Check 
that you can pull the chain round freely by hand and 
that it does not sag from the underside of the bar.
The position of the chain tensioning screw on our chain 
saws varies from model to model. See instructions under 
the heading What is what? to find out where it is on your 
model.
CS 2245S, CS 2250S
• Release the knob by folding it out.
• Turn the knob anti clockwise to loosen the bar cover.
• Adjust the tension on the chain by turning the wheel 
down (+) for tighter tension and up (-) to loosen the 
tension.
• Tighten the bar clutch by turning the knob clockwise.
• Fold the knob back in to lock the tensioning.
Lubricating cutting equipment
Chain oil
Chain oil must demonstrate good adhesion to the chain 
and also maintain its flow characteristics regardless of 
whether it is warm summer or cold winter weather.
As a chain saw manufacturer we have developed an 
optimal chain oil which, with its vegetable oil base, is also 
biodegradable. We recommend the use of our own oil for 
both maximum chain life and to minimise environmental 
damage. If our own chain oil is not available, standard 
chain oil is recommended.
Never use waste oil!  Using waste oil can be dangerous 
to you and damage the machine and environment.
WARNING! Poor lubrication of cutting 
equipment may cause the chain to snap, 
which could lead to serious, even fatal 
injuries.
IMPORTANT! When using vegetable based saw chain 
oil, dismantle and clean the groove in the bar and saw 
chain before long-term storage. Otherwise there is a risk 
of the saw chain oil oxidizing, which will result in the saw 
chain becoming stiff and the bar tip sprocket jamming.