Ryobi RY3818 Operator's Manual page 26

the Bar and Chain Combinations section later
in this manual.
 Wear gloves when handling the chain and bar.
These components are sharp and may contain
burrs.
 Remove the bar mounting nuts using the com-
bination wrench provided.
 Remove the clutch cover.
 Slide the bar toward the sprocket allowing slack
in the chain.
 From the back side of the bar, lift the old chain
off the nose and then remove it from the top
of the bar, off the sprocket and over the clutch
drum.
 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
backwards, turn the loop over.
 Fit the bar flush against the mounting surface
so that the bar studs are in the long slot of the
bar.
 Position the chain over the nose as shown so it
is behind the bar. Holding the chain in position,
place the left end of the loop over the clutch
drum and around the sprocket.
NOTE: Be sure the chain rests in the chain
catcher to ensure alignment of the drive links
in the bar groove.
 Place the chain drive links into the bar groove
as shown. Slide the top of the chain toward the
nose until the drive links fit into the bar groove.
 Slide the bar away from the sprocket allowing
the chain to tighten. Be sure to keep the bar
flush against the mounting surface.
 Replace the clutch cover ensuring that the
adjusting pin in the clutch cover is in the bar
chain tensioning pin hole and that both bar
studs are securely in their respective holes in
the clutch cover.
NOTE: The adjusting pin may need to be slightly
repositioned with the chain tensioning screw
so that it is aligned with the position of the bar
chain tensioning pin hole.
 Replace the clutch cover and bar mounting nuts.
MAINTENANCE
CHAIN
CATCHER
 Finger-tighten the bar mounting nuts. The bar
must be free to move for tension adjustment.
 Remove all 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.
Page 26 — English
SPROCKET
GUIDE
BAR
PIN HOLE
CLUTCH
COVER
CHAIN TENSION
ADJUSTING PIN
CHAIN
TENSIONING SCREW
BAR
MOUNTING
NUTS
Fig. 36
Fig. 37