Chain Maintenance - Ryobi RY5020 Manuel D'utilisation

 Stop the engine before setting the chain tension.
 Make sure the bar mounting nuts are loosened
to finger tight.
 Turn the chain tensioning screw clockwise 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.
 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.
The tip of the combination wrench can be used
as a guide to help determine the correct warm
chain tension.
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 45 - 46.
CAUTION:
Stop the engine and disconnect the spark plug
wire before you work on the saw to avoid acci-
dental starting and possible serious personal
injury.
Use only a low-kickback chain on this saw. This
fast- cutting chain provides kickback reduction
when properly maintained.
For smooth and fast cutting, maintain the chain
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 the
chain, consider the following:
MAINTENANCE
RAKER (DEPTH GAUGE) CLEARANCE
Page 29 — English
FLATS ON DRIVE LINKS
≈
.050 in.
≈ .050 in.
Fig. 42
Fig. 43
Fig. 44
.025 in.
Fig. 45
INSPECT
DRIVE
SPROCKET
Fig. 46