Ryobi P2507 Manuel D'utilisation page 107

A warm chain is correctly tensioned when the flats
on the tie straps hang approximately .050 inches
out of the bar groove.
If adjustment is needed:
 Remove the combination wrench from the stor-
age area.
 Loosen the chain cover screw to finger tight.
 Raise the tip of the guide bar and continue to
hold up until the end of this procedure.
 Turn the chain tensioning screw clockwise until
the flats on the tie straps of the chain contact
the bar, making sure the drive links are seated
inside the bar groove.
 Retighten the chain cover screw securely.
 Release the tip of the guide bar and verify the
chain is now correctly tensioned using the
guidelines above.
NOTE: If the chain is too tight and will not ro-
tate, loosen the chain cover screw slightly, then
turn the chain tensioning screw 1/4 turn coun-
terclockwise. Lift up the tip of the guide bar,
retighten the chain cover screw securely, then
verify the chain will now rotate without binding.
NOTE: New chains tend to stretch; check the
chain tension frequently and adjust as needed.
 Return the combination wrench to the storage
area.
NOTICE:
A chain tensioned while warm may be too tight
upon cooling. Check the "cold tension" before
next use.
MAINTENANCE
FLATS ON TIE STRAPS
15 — English
APPROX .050 in.
COMBINATION
WRENCH
CHAIN
COVER
CHAIN CHAIN COVER
TENSIONING SCREW
SCREW
Fig. 11
Fig. 12
WRENCH
STORAGE
AREA
Fig. 13
BAR
CHAIN
Fig. 14