Product Manual
28
OREGON® PowerNow™
CHAINSAW MODEL CS250
AF 0911 - F/N 547361
TROUBLESHOOTING
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE RECOMMENDED ACTIONS
Motor does
not run or runs
intermittently
Chain brake engaged
Before starting, make sure the hand guard is in its
most rearward position (chain brake disengaged).
For correct hand guard position, see “Starting The
Saw” in this manual.
Battery discharged
Check the charge-level indicator on the battery. If
no green indicator lights are on, recharge.
Trigger lock-out not
pressed
Trigger lock-out must be depressed. See “Starting
The Saw” in this manual.
Battery pack not fully
inserted
Clean debris from the battery port and terminals
with a clean dry cloth or non-conductive brush.
Debris in side cover
Remove battery pack, then remove side cover and
clean out debris.
Battery pack cold
Allow battery to warm above the minimum
operating temperature of 10°F (-12°C).
Motor runs,
but chain does
not rotate
Chain not engaging
drive sprocket
Reinstall the chain, making sure the drive links
on the chain are fully seated on the sprocket. See
“Maintenance and Cleaning” in this manual for
installation instructions.
Chain brake does
not engage
Debris preventing full
movement of hand
guard
Clean debris from external chain brake mechanism.
Possible chain brake
malfunction
Contact an approved service location immediately.
WARNING: OPERATING A CHAINSAW WITHOUT
A FUNCTIONING CHAIN BRAKE COULD LEAD TO
SERIOUS PERSONAL INJURY.
Chainsaw does
not cut properly
Insucient chain
tension
See “Tensioning Instructions” in this manual.
Dull chain
Sharpen according to “Sharpening with
PowerSharp®” in this manual.
Chain installed
backwards
See “Replacing the Bar and Chain” in this manual.
Worn chain
Replace both the chain and stone. They are
designed to wear at the same rate.
Dry or excessively
stretched chain
Check the oil level. Rell oil reservoir if necessary.
See “Assembly” in this manual. Check for a clogged
oil system. A small amount of oil should be
delivered to the bar.
Chain not in bar groove See “Replacing the Bar and Chain” in this manual.
If the steps below do not solve the problem, please see Service Information in
this manual.










