Product Manual

32
OREGON® Cordless Tool System
CHAIN SAW MODEL CS300
MAINTENANCE AND CLEANING
AA 1214 - F/N 573259
REPLACING A WORN
CHAIN TENSIONING GEAR
Replace the chain tensioning gear if it
will not hold the bar and chain at proper
tension or if it is otherwise damaged.
Wear gloves.
• Remove the battery.
• Loosen the side cover release knob
slightly, but do not remove the side
cover.
• Loosen the chain tensioning ring (turn it
counterclockwise) as far as it will go.
• Loosen the side cover release knob and
remove the side cover.
• Remove the bar and chain.
• Remove the screw from the back side of
the chain tensioning gear and remove
the chain tensioning gear from the
guide bar.
• Place the new chain tensioning gear on
the side of the guide bar facing you and
replace the screw.
• Replace the guide bar and saw chain.
See “Assembling the Guide Bar and Saw
Chain” section in this manual.
• Tension the chain as described in
“Tensioning the Saw Chain” in the
“Unpacking and Assembly” section of
this manual.
REPLACING THE
DRIVE SPROCKET
Replace the drive sprocket after every
two saw chain replacements or when the
sprocket is damaged.
Wear gloves and eye protection.
• Remove the battery.
• Loosen the side cover release knob
slightly, but do not remove the side
cover.
• Loosen the chain tensioning ring (turn it
counterclockwise) as far as it will go.
• Loosen the side cover release knob and
remove the side cover.
• Remove the bar and chain.
• Use a small flat screwdriver to pry open
and remove the e-clip, then remove the
washer and drive sprocket (Fig. ).
• Insert the new drive sprocket and
washer, and install the new e-clip
(Fig. ).
FIG. 45
FIG. 46