Ryobi RY40050 Manual Del Operador página 16

NOTE: A cold chain is correctly tensioned when
there is no slack on the underside of the guide
bar, the chain is snug, but it can be turned by
hand without binding.
 Chain must be re-tensioned whenever the flats on
the drive links hang out of the bar groove as
shown in fig. 13.
 During normal operation, the temperature of the
chain will increase. The drive links of a correctly
tensioned warm chain will hang approximately
.050 in. out of the bar groove, as shown in
fig. 14.
NOTE: New chain tends to stretch; check chain
tension frequently and tension as required.
NOTICE:
Chain tensioned while warm, can be too tight
upon cooling. Check the "cold tension" before
next use.
REPLACING THE BAR AND CHAIN
See Figures 15 - 18.
WARNING:
To avoid possible serious injury, stop the motor
and remove the battery pack before replacing
the bar, chain, or performing any maintenance
operation.
 Using the combination wrench provided, re-
move the chain cover screw, washer, and chain
cover from the chain saw.
 The bar contains a slot that fits over the mount-
ing post. The bar also contains a chain tension-
ing pin hole which fits over the chain tensioning
pin.
 Place the bar onto the mounting post so that the
chain tensioning pin fits into the chain tensioning
pin hole.
NOTE: If necessary, rotate the chain tensioning
screw counterclockwise until the pin and hole
can be aligned.
 Fit the chain over the sprocket and into the bar
groove. The cutters on the top of the bar should
face toward the bar tip, in the direction of the
chain rotation.
MAINTENANCE
CHAIN
COVER
CHAIN
COVER
SCREW LOCK
Page 16 — English
APPROX .050 in.
CHAIN
COVER
CHAIN COVER SCREW
SPROCKET
CHAIN
TENSIONING
PIN HOLE
WASHER
MOUNTING
POST SLOT
Fig. 14
BAR
CHAIN
Fig. 15
CHAIN
TENSIONING PIN
MOUNTING
POST
BAR
Fig. 16