Oregon CS250 Operator's Manual page 25

orEgoN® powerNow™
ChAiNsAW MoDEl Cs 250
replacing tHe Bar
and cHain
caution: only poWersHarp®
saW cHain can Be sHarpened
By tHe poWersHarp® lever
on tHe cHainsaW. reMove
tHe sHarpening stone WHen
using saW cHain otHer tHan
poWersHarp®. failure to do so
May result in daMage to tHe
saW cHain, sHarpening systeM,
and/or cHainsaW.
Wear gloves. With the chainsaw off and
cool and the battery pack removed,
remove the side cover by loosening the
side cover knob (Fig. 23). Make sure the
bar pad, sprocket, and tensioning screw
are free of debris.
NOTE: This is a good time to inspect the
drive sprocket and tensioning screw for
excessive wear or damage.
Install the new bar and chain as follows:
Fig. 23
AF 0911 - F/N 547361
MAINTENANCE AND CLEANINg
• Adjust the tensioning pin as far back
towards the rear of the saw as it will go.
Place the guide bar on the mounting
pad, by sliding the bar slot over the
alignment flange (the long, raised
portion of the bar pad holding the
mounting stud) (Fig. 24), making sure
the bar adjusting pin is inserted in the
bottom hole in the tail of the bar.
Fig. 24
• Loop the new chain onto the drive
sprocket with teeth cutting edges
facing away from the drive sprocket
along top edge of the guide bar.
• Feed the chain into the groove of the
bar and slide the bar away from the
motor to remove slack from the chain
(Fig. 25). Adjust the position of the bar
adjusting pin until it engages the hole
in the bar.
Fig. 25
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