Troubleshooting - Oregon CS250 Operator's Manual

TROUBLEShOOTINg

trouBlesHooting
if the steps below do not solve the problem, please see service information in
this manual.
SYMpTOM
Motor does
not run or runs
intermittently
Motor runs,
but chain does
not rotate
Chain brake does
not engage
Chainsaw does
not cut properly
28
pOSSIBLE CAUSE
Chain brake engaged
Battery discharged
Trigger lock-out not
pressed
Battery pack not fully
inserted
Debris in side cover
Battery pack cold
Chain not engaging
drive sprocket
Debris preventing full
movement of hand
guard
Possible chain brake
malfunction
Insufficient chain
tension
Dull chain
Chain installed
backwards
Worn chain
Dry or excessively
stretched chain
Chain not in bar groove
RECOMMENDED ACTIONS
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.
Check the charge-level indicator on the battery. If
no green indicator lights are on, recharge.
Trigger lock-out must be depressed. See "Starting
The Saw" in this manual.
Clean debris from the battery port and terminals
with a clean dry cloth or non-conductive brush.
Remove battery pack, then remove side cover and
clean out debris.
Allow battery to warm above the minimum
operating temperature of 10°F (-12°C).
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.
Clean debris from external chain brake mechanism.
Contact an approved service location immediately.
WARNING: OPERATING A CHAINSAW WITHOUT
A FUNCTIONING CHAIN BRAKE COULD LEAD TO
SERIOUS PERSONAL INJURY.
See "Tensioning Instructions" in this manual.
Sharpen according to "Sharpening with
PowerSharp®" in this manual.
See "Replacing the Bar and Chain" in this manual.
Replace both the chain and stone. They are
designed to wear at the same rate.
Check the oil level. Refill 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.
See "Replacing the Bar and Chain" in this manual.
orEgoN® powerNow™
ChAiNsAW MoDEl Cs 250
AF 0911 - F/N 547361