Ryobi RY40500 Manuel D'utilisation page 23

CHAIN DRIVE
LINKS
BAR
GROOVE
CHAIN
TENSION PIN
HOLE
 Hold the tip of the guide bar up and tighten the
chain cover lock knob.
The chain is correctly tensioned when there is no
sag on the underside of the guide bar, the chain is
snug, but it can be turned by hand without binding.
NOTE: If chain is too tight, it will not rotate. Loosen
the chain cover lock knob slightly and turn the
chain tensioning knob 1/4 turn counterclockwise.
Lift the tip of the guide bar up and retighten the
chain cover lock knob. Ensure that the chain will
rotate without binding.
MAINTENANCE
Fig. 28
BAR STUDS
CHAIN
COVER
CHAIN
COVER LOCK
KNOB
CHAIN
TENSIONING
PIN Fig. 29
LIfT THE TIP Of
THE GUIDE BAR
UP TO CHECK fOR
SAG
CHAIN
TENSIONING
KNOB
fLATS
23 - English
CHAIN COVER
LOCK KNOB
APPROX. .050 in.
Fig. 30
Fig. 31
Fig. 32