Ryobi P5452 Manuel D'utilisation page 20

WARNING:
Never touch or adjust the chain while the motor
is running. The saw chain is very sharp; always
wear protective gloves when performing main-
tenance to the chain to avoid possible serious
lacerations.
CAUTION:
Always wear gloves when handling the bar and
chain; these components are sharp and may
contain burrs.
 Remove the battery pack before you do any
work on the chain saw.
 Remove the scrench from the storage area and
use it to remove the chain cover screw, washer
and chain cover from the chain saw.
 Remove the bar and chain from mounting surface.
 Remove the old chain from the bar.
 Lay out the new saw chain in a loop and
straighten any kinks. The cutters should face in
the direction of chain rotation. If they face the
opposite direction, turn the loop over.
 Place the chain drive links into the bar groove.
Position the chain so there is a loop at the back
of the bar. Hold the chain in position on the bar
and place the loop around the sprocket of the
chain saw. Fit the bar flush against the mounting
surface so that the bar stud is in the long slot of
the bar.
WARNING:
When placing the bar on the bar studs, ensure
the chain tensioning pin is in the chain tension
pin hole. Failure to properly place the chain
tensioning pin in the chain tension pin hole
could cause the chain to come loose, resulting
in serious personal injury.
 Replace the chain cover, washer and chain
cover screw. Tighten the chain cover screw
finger tight only. The bar must be free to move
for tension adjustment.
MAINTENANCE
LIFT THE TIP OF
THE GUIDE BAR
UP TO CHECK FOR
 Remove all the slack from the chain by turning
the chain tensioning screw clockwise until the
chain seats snugly against the bar with the drive
links in the bar groove.
 Lift the tip of the guide bar up to check for
sag. Release the tip of the guide bar and turn
the chain tensioning screw 1/2 turn clockwise.
Repeat this process until sag does not exist.
 Hold the tip of the guide bar up and tighten the
bar mounting screw securely.
 Chain is correctly tensioned when there is no
sag on the underside of the guide bar, the chain
20 - English
CHAIN DRIVE
LINKS
BAR
GROOVE
CHAIN
TENSIONING
SCREW
SAG
Fig. 17
Fig. 18
Fig. 19