Ryobi P548 Manuel D'utilisation page 28

ADJUSTING THE CHAIN TENSION
See Figures 33 - 34.
WARNING:
Stop the motor and remove the battery pack.
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 on the chain. Failure to follow these
instructions can result in serious personal injury.
 Stop the motor and remove battery pack before
setting the chain tension.
 Slightly loosen the chain cover lock knob.
 Turn the chain tension adjustment ring clock-
wise to tension the chain.
NOTE: A cold chain is correctly tensioned when
there is no slack on the underside of the guide
bar, the chain is snug, and it can be turned by
hand without binding.
 Rotate the chain cover lock knob clockwise to
secure.
Retension the chain whenever the flats on the drive
links hang out of the bar groove.
NOTE: During normal saw operation, the tem-
perature of the chain increases. The drive links
of a correctly tensioned warm chain will hang
approximately .050 in. out of the bar groove.
NOTE: New chains tend to stretch; check the chain
tension frequently and tension as required.
NOTICE:
A chain tensioned while warm may be too tight
upon cooling. Check the "cold tension" before
next use.
CHAIN MAINTENANCE
See Figures 35 - 36.
WARNING:
Remove the battery pack and make sure the
chain has stopped before you do any work on
the saw to avoid accidental starting and pos-
sible serious personal injury.
MAINTENANCE
Use only low-kickback chain on this saw. This
fast-cutting chain will provide kickback reduction
when properly maintained.
For smooth and fast cutting, chain needs to be
maintained properly.
The chain requires sharpening when the wood chips
are small and powdery, the chain must be forced
through the wood during cutting, or the chain cuts
to one side. During maintenance of your chain,
consider the following:
 Improper filing angle of the side plate can
increase the risk of a severe kickback.
 Raker (depth gauge) clearance.
• Too low increases the potential for kickback.
• Not low enough decreases cutting ability.
 If cutter teeth have hit hard objects such as nails
and stones, or have been abraded by mud or sand
on the wood, have service dealer sharpen chain.
28 - English
FLATS ON DRIVE LINKS
≈
.050 in.
RAKER (DEPTH GAUGE) CLEARANCE
Fig. 33
Fig. 34
.025 in.
Fig. 35