Oregon CS250 User guide

AA 0612 - F/N 551309
ORIGINAL INSTRUCTION MANUAL
CHAINSAW MODEL CS250
MANUEL D’INSTRUCTIONS ORIGINAL
TRONÇONNEUSE MODÈLECS250
ORIGINALBETRIEBSANLEITUNG
KETTENSÄGE MODELL CS250
MANUAL DE INSTRUCCIONES ORIGINAL
MODELO DE MOTOSIERRA CS250
MANUALE DI ISTRUZIONI ORIGINALE
MODELLO DI MOTOSEGA CS250
ANVÄNDARMANUAL
MOTORSÅG MODELL CS250

2
SAFETY RULES OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
ENGLISH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
FRANÇAIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
DEUTSCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
ITALIANO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
SVENSKT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
ESPAÑOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
WARNING: READ ALL SAFETY WARNINGS AND ALL INSTRUCTIONS. FAILURE TO FOLLOW THE
WARNINGS AND INSTRUCTIONS MAY RESULT IN ELECTRIC SHOCK, FIRE AND/OR SERIOUS INJURY.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE.
WARNHINWEIS: ALLE SICHERHEITSWARNUNGEN UND ANWEISUNGEN LESEN. DIE NICHTBEFOLGUNG
DER WARNUNGEN UND ANWEISUNGEN KANN ZU STROMSCHLAG, BRAND UND/ODER SCHWEREN
VERLETZUNGEN FÜHREN.
ALLE WARNHINWEISE UND ANWEISUNGEN FÜR ZUKÜNFTIGEN GEBRAUCH AUFBEWAHREN.
AVVERTENZE: LEGGERE LE NORME DI SICUREZZA E LE ISTRUZIONI. LA MANCATA OSSERVANZA DELLE
NORME DI SICUREZZA E DELLE ISTRUZIONI D’USO POTREBBE COMPORTARE SCOSSE ELETTRICHE, INCENDI E/O
GRAVI LESIONI.
CONSERVARE TUTTE LE ISTRUZIONI E LE NORME DI SICUREZZA PER RIFERIMENTO FUTURO.
VARNING: LÄS ALLA SÄKERHETSVARNINGAR OCH ANVISNINGAR. UNDERLÅTENHET ATT FÖLJA
VARNINGARNA OCH ANVISNINGARNA KAN LEDA TILL ELEKTRISKA STÖTAR, ELDSVÅDA OCH/ELLER ALLVARLIG
SKADA.
SPARA ALLA VARNINGAR OCH ANVISNINGAR FÖR FRAMTIDA REFERENS.
ADVERTENCIA: LEA TODAS LAS ADVERTENCIAS DE SEGURIDAD Y TODAS LAS INSTRUCCIONES. NO
SEGUIR LAS ADVERTENCIAS Y LAS INSTRUCCIONES PUEDE PROVOCAR CHOQUES ELÉCTRICOS, INCENDIOS Y/O
LESIONES GRAVES.
CONSERVE TODAS LAS ADVERTENCIAS E INSTRUCCIONES COMO REFERENCIA PARA EL FUTURO.
AVERTISSEMENT : LISEZ TOUS LES AVERTISSEMENTS DE SÉCURITÉ ET TOUTES LES INSTRUCTIONS.
LE NONRESPECT DES AVERTISSEMENTS DE SÉCURITÉ ET DES INSTRUCTIONS PEUT ENTRAÎNER UNE
DÉCHARGE ÉLECTRIQUE, UN INCENDIE ET/OU DES BLESSURES GRAVES.
CONSERVEZ L’ENSEMBLE DES AVERTISSEMENTS ET INSTRUCTIONS POUR RÉFÉRENCE ULTÉRIEURE.

3
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309

© 2012 Blount, Inc. Pricing and specications subject to change without notice. All rights reserved. OREGON®, PowerSharp® and PowerNow™
are registered trademarks of Blount, Inc. in the United States and/or in other countries.
4
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
TABLE OF CONTENTS
TABLE OF CONTENTS
SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CHAINSAW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CHARGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SYMBOLS AND LABELS . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PRODUCT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . 13
SPECIFICATIONS AND COMPONENTS . . . . . . . . . . . . . . . . 14
CHAINSAW NAMES AND TERMS . . . . . . . . . . . . . . . . . . . . 15
ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
OPERATING THE SAW . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
GENERAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . 19
CUTTING TECHNIQUES . . . . . . . . . . . . . . . . . . . . . . 19
SHARPENING WITH POWERSHARP® . . . . . . . . . . . . . . 23
MAINTENANCE AND CLEANING . . . . . . . . . . . . . . . . . . . . 24
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . .28
WARRANTY AND SERVICE INFORMATION. . . . . . . . . . . . . .30
CUSTOMER SERVICE BY COUNTRY . . . . . . . . . . . . . . . . . 175

5
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SAFETY RULES
INTRODUCTION
This chainsaw is designed for occasional light duty use. It is not designed to fell
large trees or cut large diameter logs. This chainsaw is not designed for tree
service. Do not cut trees or wooden timbers that have a diameter equal to or
greater than the bar length.
SAFETY RULES
WARNING: READ ALL SAFETY WARNINGS AND ALL INSTRUCTIONS.
FAILURE TO FOLLOW THE WARNINGS AND INSTRUCTIONS MAY RESULT IN
ELECTRIC SHOCK, FIRE AND/OR SERIOUS INJURY.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE USE.
GENERAL SAFETY RULES 
WORK AREA SAFETY
•Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
•Do not operate the chainsaw in
explosive atmospheres, such as in the
presence of flammable liquids, gases
or dust. Power tools create sparks which
may ignite the dust or fumes.
•Keep children and bystanders away
while operating the chainsaw.
Distractions can cause you to lose control.
•Identify and avoid gas lines,
electrical hazards, tripping hazards,
and potential sources of body
entanglement.
•Establish a safe zone for helpers. Helpers
should never stand directly in front of or
behind the operator. Helpers should always
stand to the side or perpendicular to the
direction of the cut.
ELECTRICAL SAFETY
•Charger plugs must match the outlet.
Never modify the plug in any way. Do
not use any adapter plugs with earthed
(grounded) charger. Unmodied plugs
and matching outlets will reduce the risk of
electric shock.
•Avoid body contact with earthed or
grounded surfaces, such as pipes,
radiators, ranges and refrigerators.
There is an increased risk of electric shock if
your body is earthed or grounded.
•Accidental splashing of water against
the chainsaw from any direction will
present no harmful shock or hazard to
the operator.
•Do not abuse the cord. Never use
the cord for carrying, pulling or
unplugging the charger. Keep cord
away from heat, oil, sharp edges or
moving parts. Damaged or entangled
cords increase the risk of electric shock.
•While operating the charger outdoors,
use an extension cord suitable for
outdoor use. Use of a cord suitable for
outdoor use reduces the risk of electric shock.
•If operating the charger in a damp
location is unavoidable, use a ground
fault circuit interrupter (GFCI)
protected supply. Use of a GFCI reduces
the risk of electric shock.

6
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SAFETY RULES
PERSONAL SAFETY
•Stay alert, watch what you are
doing and use common sense when
operating the chainsaw. Do not use the
chainsaw while you are tired or under
the influence of drugs, alcohol or
medication. A moment of inattention while
operating chainsaw may result in serious
personal injury.
•Use personal protective equipment.
Always wear eye protection. Protective
equipment such as a dust mask, non-skid
safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce
personal injuries.
•Remove any adjusting key or wrench
before turning the chainsaw on. A
wrench or key left attached to a rotating part
of the chainsaw may result in personal injury.
•Do not overreach (Fig. 1). Keep proper
footing and balance at all times. This
enables better control of the chainsaw in
unexpected situations.
Fig. 1
•Dress properly. Do not wear loose
clothing or jewellery. Keep your hair,
clothing and gloves away from moving
parts. Loose clothes, jewellery or long hair
can be caught in moving parts.
•Use two hands when operating the
chainsaw.
•The work piece, bar, and chain can be
hot after cutting. Wear gloves to avoid
burns.
•Use proper auxiliary equipment
and ensure that it is not damaged,
of adequate strength, and securely
placed. Use auxiliary equipment only for the
purpose for which it is intended.
•Prolonged use of power tools has been
reported to cause vascular, muscular,
or neurological disorders (such as
vibration white finger or Raynaud’s
syndrome). To reduce the risk of injury,
follow these instructions:
– Wears gloves and keep hands and body
warm.
– Maintain a rm grip on the chainsaw,
but do not use prolonged, excessive
pressure.
– Take frequent breaks.
POWER TOOL USE AND CARE
•Do not force the chainsaw. Use the
correct chainsaw for your application.
The correct chainsaw will do the job better
and safer at the rate for which it was
designed.
•Do not use the chainsaw if the switch
does not turn it on and off. Any power
tool that cannot be controlled with the switch
is dangerous and must be repaired.
•Prevent unintentional starting. Ensure
the switch is in the off-position before
connecting to power source and/or
battery pack, picking up or carrying
the tool. Carrying power tools with your
nger on the switch or energizing power tools
that have the switch on invites accidents.
•Disconnect the battery pack from
the chainsaw before making any
adjustments, changing accessories, or
storing the chainsaw. Such preventative
safety measures reduce the risk of starting the
chainsaw accidently.
•Store idle chainsaws out of the reach
of children and do not allow persons
unfamiliar with the chainsaw or these
instructions to operate the chainsaw.
Chainsaws are dangerous in the hands of
untrained users.

7
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SAFETY RULES
•Maintain the chainsaw. Check for
misalignment or binding of moving
parts, breakage of parts and any
other condition that may affect the
chainsaw’s operation. If damaged, have
the chainsaw repaired before use. Many
accidents are caused by poorly maintained
power tools.
•Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are
easier to control.
•Use the chainsaw, accessories and
tool bits etc. in accordance with these
instructions, taking into account the
working conditions and the work to
be performed. Use of the chainsaw for
operations dierent from those intended
could result in a hazardous situation.
BATTERY TOOL USE AND CARE
•Recharge only with the charger
specified by OREGON®.A charger that
is suitable for one type of battery pack may
create a risk of re when used with another
battery pack.
•Use the chainsaw only with specifically
designated battery packs. Use of any
other battery packs may create risk of injury
and re.
•When battery pack is not in use, keep
it away from other metal objects, like
paper clips, coins, keys, nails, screws
or other small metal objects, that can
make a connection from one terminal
to another. Shorting the battery terminal
may cause burns or a re.
•Under abusive conditions, liquid may
be ejected from the battery; avoid
contact. If contact accidentally occurs,
flush with water. If liquid contacts eyes,
additionally seek medical help. Liquid
ejected from the battery may cause irritation
or burns.
•Do not disassemble the chainsaw,
charger, or battery pack or attempt to
repair these products. Doing so could
result in electrical shock.
SERVICE
Other than the wear parts identified in
this manual, the chainsaw has no user
serviceable parts.
•Have your chainsaw serviced by a
qualified repair person using only
identical replacement parts. This will
ensure that the safety of the chainsaw is
maintained.
TRANSPORTING AND
STORAGE
STORING THE SAW
•Removethebatterypackand
thoroughlycleanthesaw.See
“Maintenance and Cleaning” in this
manual.Install the blade cover prior to
storing.
•Storeinadryplaceoutofreachof
children or pets.
•Itisnormalforasmallamountofoilto
seepfromthebarwhenthechainsawis
not in use. To protect against seepage,
install the blade cover and place an
absorbent pad under the guide bar.
STORING THE BATTERY PACK
•Removethebatterypackfromthe
chainsaw or charger.
•Storeinacool,dryplaceoutofreachof
children and animals.
•Tomaximizeperformance,never
storebatterypacksinacompletely
discharged condition.
•Storewithachargeofabout40–50%
(two green lights on the charge level
indicator) in temperatures above -20°C
(-4°F) but below 30°C (86°F).
STORING THE CHARGER
•Removethebatterypackand
disconnectthechargercordfromthe
power source.
•Storeinadryplaceoutofreachof
children and animals.

8
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SAFETY RULES
TRANSPORTING THE CHAINSAW
Removethebatterypackfromthesaw
and install the blade cover. Clean the
sawthoroughlyandifdesired,drainthe
bar and chain oil to reduce seepage.
TRANSPORTING THE BATTERY
Observe respective national regulations
when shipping lithium ion batteries,
compulsorylabelingmayberequired.
DISPOSAL
The OREGON product is designed
andmanufacturedwithhighquality
materials and components which can
berecycledandreused.Uponproduct
end-of-life,andaccordingtoDirective
2002/96/EC, the electrical appliance
shouldbedisposedofseparatelyfrom
household waste. In the European
Union there are separate collection
systemsforusedelectricaland
electronicproducts.Pleasedisposeof
thisequipmentinanenvironmentally
correctmanneratyourlocalcommunity
wastecollection/recyclingcentre
BATTERY PACK DISPOSAL
Donotdisposeofbatterypackin
normal household waste. Do not
incineratebatterypack.Localwaste
managementandrecyclingagencies
haveinformationonproperdisposalor
recyclingaccordingtoenvironmental
regulations.
CHAINSAW SAFETY
•Keep all parts of the body away from
the saw chain when the chainsaw
is operating. Before you start the
chainsaw, make sure the saw chain is
not contacting anything. A moment of
inattention while operating chainsaws may
cause entanglement of your clothing or body
with the saw chain.
•Always hold the chainsaw with your
right hand on the rear handle and
your left hand on the front handle.
Holding the chainsaw with a reversed hand
conguration increases the risk of personal
injury and should never be done.
•Wear safety glasses and hearing
protection. Further protective
equipment for head, hands, legs
and feet is recommended. Adequate
protective clothing will reduce personal injury
by ying debris or accidental contact with the
saw chain.
•Do not operate a chainsaw in a tree.
Operation of a chainsaw while up in a tree
may result in personal injury.
•Always keep proper footing and
operate the chainsaw only when
standing on a fixed, secure and level
surface. Slippery or unstable surfaces may
cause a loss of balance or control of the
chainsaw.
•When cutting a limb that is under
tension, be alert for spring back. When
the tension in the wood bres is released the
spring loaded limb may strike the operator
and/or throw the chainsaw out of control.
•Use extreme caution when cutting
brush and saplings. The slender material

9
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SAFETY RULES
may catch the saw chain and be whipped
toward you or pull you o balance.
•Carry the chainsaw by the front
handle with the chainsaw switched
off and away from your body. When
transporting or storing the chainsaw
always fit the guide bar cover. Proper
handling of the chainsaw will reduce the
likelihood of accidental contact with the
moving saw chain.
•Follow instructions for lubricating,
chain tensioning and changing
accessories. Improperly tensioned or
lubricated chain may either break or increase
the chance of kickback.
•Keep handles dry, clean, and free of oil
and grease. Greasy, oily handles are slippery
causing loss of control.
•Cut wood only. Do not use the
chainsaw for purposes not intended.
For example: do not use chainsaw for
cutting plastic, masonry, or non-wood
building materials. Use of the chainsaw
for operations dierent than intended could
result in a hazardous situation.
It is recommended that the rst time user
should have practical instruction in the
use of the chainsaw and the protective
equipment from an experienced operator.
The initial practice should be cutting logs on
a saw-horse or cradle.
CAUSES AND OPERATOR
PREVENTION OF KICKBACK
Kickbackmayoccurwhenthenoseor
tipoftheguidebartouchesanobject,
or when the wood closes in and pinches
the saw chain in the cut.
Tipcontactinsomecasesmaycause
asuddenreversereaction,kickingthe
guidebarupandbacktowardsthe
operator.
Pinchingthesawchainalongthetopof
theguidebarmaypushtheguidebar
rapidlybacktowardstheoperator.
Eitherofthesereactionsmaycauseyou
tolosecontrolofthesawwhichcould
resultinseriouspersonalinjury.Donot
relyexclusivelyuponthesafetydevices
builtintoyoursaw.Asachainsawuser,
youshouldtakeseveralstepstokeep
yourcuttingjobsfreefromaccidentor
injury.
Kickbackistheresultoftoolmisuse
and/or incorrect operating procedures
orconditionsandcanbeavoidedby
takingproperprecautionsasgiven
below:
•Maintain a firm grip, with thumbs
and fingers encircling the chainsaw
handles, with both hands on the saw
and position your body and arm to
allow you to resist kickback forces.
Kickback forces can be controlled by the
operator. Do not let go of the chainsaw.
•Do not overreach and do not cut
above shoulder height. This helps prevent
unintended tip contact and enables better
control of the chainsaw in unexpected
situations.
•Only use replacement bars and chains
specified by OREGON®.Incorrect
replacement bars and chains may cause
chain breakage and/or kickback.

10
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SAFETY RULES
•Follow OREGON® ‘s sharpening and
maintenance instructions for the saw
chain. Decreasing the depth gauge height
can lead to increased kickback.
KICKBACK SAFETY DEVICES
ON THIS SAW
CHAIN BRAKE
Thechainsawcomesequippedwith
achainbrake,whichstopsboththe
motorandthemotionofthechain
whenkickbackoccurs(Fig.2).Thechain
brakecanbeactivatedbytheforward
motionofthehandguardasthesaw
rotatesbackwardduringkickback;itcan
alsobeactivatedbytheinertialforces
generatedduringrapidpushback.
Fig. 2
DANGER: NEVER MODIFY OR
ATTEMPT TO DISABLE THE
CHAIN BRAKE.
CHAIN
Thissawcomesequippedwithasaw
chainthatmetthereducedkickback
requirementsofANSIB175.1when
testedonarepresentativesampleof
chainsaws. For replacement chain, see
“Specifications and Components” in this
manual.
BAR
Thissawcomesequippedwitha
guide bar that has a small radius nose.
Smallradiusnosesgenerallyhaveless
potentialforkickback.
When replacing the bar, be sure to order
the bar listed in this manual.
BATTERY SAFETY
DANGER: FAILURE TO FOLLOW
THESE SAFETY RULES CAN
CAUSE THE BATTERY PACK TO
LEAK HAZARDOUS CHEMICALS,
OVERHEAT, EMIT SMOKE, BURST,
FLARE, EXPLODE, AND/OR IGNITE.
•Donotdisassembleormodifythe
batterypack.Thebatterypackis
equippedwithbuilt-insafetyand
protectionfeatureswhichmaybe
inadvertentlydisabled.
•Donotconnectthepositive(+)and
negative (-) terminals with metal
objects.Donottransportorstore
thebatterypacktogetherwithmetal
objectssuchascoinsorscrews.Short-
circuitingmayoccurorthemetalobject
incontactwiththebatterypackcan
generate heat.
•Donotdiscardthebatterypackinto
reorotherwiseexposetoexcessive
heat. Such conditions can cause the
insulationtomeltorsafetyfeaturesto
be damaged.
•Donotuse,charge,orstorethebattery
packnearaheatsourceasreora
heater that generate temperatures
above 80°C (176°F). Overheating and/or
internalshortcircuitingmayoccur.
•Donotimmersethebatterypackin
waterorexposeittoextremelywet
conditions.Moisture can cause the
protectivefeaturestobedamaged,
resultinginchargingwithextremely
highcurrentandvoltage,whichmay
lead to abnormal chemical reactions.
•Torechargethebatterypack,usethe
batterychargerspecicallydesigned
forthebatterypackandobservethe
speciedchargersafetyprecautions
detailed in this manual. Failure to
dosomayresultinextremelyhigh
currentandvoltage,whichmayleadto
abnormal chemical reactions.

11
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SAFETY RULES
•Donotstrike,pierce,orthrowbattery
pack.
•Donotuseanapparentlydamagedor
deformedbatterypack.
•Iftherechargingoperationfailsto
completeevenafterthespecied
recharging time has elapsed,
immediatelystopfurtherrecharging.
•Ifthebatterypackgivesoanodor,
generates heat, becomes discolored
ordeformed,orinanywayappears
abnormal during use, recharging, or
storage,immediatelyremoveitfromthe
equipmentorcharger.
CAUTION: DO NOT DISPOSE OF THE
BATTERY PACK IN THE HOUSEHOLD
WASTE OR FIRE. LITHIUM ION
BATTERY PACKS SHOULD BE
RECYCLED BY LOCAL AUTHORISED
RECYCLER.
CAUTION: DO NOT EXPOSE
BATTERY PACKTO EXCESSIVE HEAT,
SUCH AS THE INTERIOR OF A VEHICLE
IN HOT WEATHER. SUCH EXPOSURE
CAN CAUSE A LOSS IN PERFORMANCE
AND/OR ITS SERVICE LIFE
SHORTENED. DO NOT ATTEMPT TO
RECHARGE A NONRECHARGEABLE
BATTERY PACK.
CAUTION: THIS APPLIANCE IS NOT
INTENDED FOR USE BY PERSONS
INCLUDING CHILDREN WITH
REDUCED PHYSICAL, SENSORY OR
MENTAL CAPABILITIES, OR LACK
OF KNOWLEDGE, UNLESS THEY
HAVE BEEN GIVEN SUPERVISION
OR INSTRUCTION BY A PERSON
RESPONSIBLE FOR THEIR SAFETY.
CHILDREN SHOULD BE SUPERVISED
TO ENSURE THAT THEY DO NOT PLAY
WITH THE APPLIANCES.
CHARGER SAFETY
IMPORTANT SAFETY INSTRUCTIONS
 SAVE THESE INSTRUCTIONS
CAUTION: RISK OF INJURY FROM
ELECTRIC SHOCK AND FIRE. CHARGE
ONLY WITH LITHIUM ION BATTERIES
INTENDED FOR THIS APPLIANCE.
THIS CHARGER IS INTENDED FOR
DRY LOCATION USE ONLY. BEFORE
USING THE CHARGER, READ AND
UNDERSTAND ALL INSTRUCTIONS
AND SAFETY MARKINGS IN THIS
MANUAL, ON THE CHARGER AND ON
THE BATTERY PACKS.
CAUTION: USE THIS CHARGER
ONLY WITH THE SUPPLIED POWER
CORD, MAKING SURE THAT THE
INPUT PLUG CORRECTLY MATES TO
THE OUTPUT RECEPTACLE.
•Donotexposethechargertorain.
•Disconnectthechargerfromthepower
supplywhennotinuse.
•Donotdisassemblethecharger.THERE
ARE NO USER SERVICEABLE PARTS
INSIDE.Takeittoanapprovedservice
locationwhenrepairisrequired.
•Donotusethechargerifithasbeen
dropped, received a sharp impact, or
otherwisedamagedinanyway.Replace
ortakethechargertoanapproved
servicelocationimmediately.
•Toreducetheriskofinjury,chargeonly
thelithiumionbatteriesspeciedforthe
charger.
•Donotoperatethechargerwith
a damaged cord or plug.Replace
damaged power cord with the power
cord part number located in the
instructions. See “Specifications and
Components” in this manual.
•Locatethecordsothatitwillnotbe
tripped over, stepped on, or otherwise
subjectedtopotentialdamage.
•Neverunplugthechargerbypullingon
thecord;alwayspullbytheplug.

12
SAFETY RULES OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SYMBOL NAME EXPLANATION
CLASS II
CONSTRUCTION
DESIGNATED DOUBLE INSULATED CONSTRUCTION
TOOLS
SAFETY ALERT
SYMBOL
INDICATES THAT THE TEXT THAT FOLLOWS EXPLAINS A
DANGER, WARNING, OR CAUTION.
READ
INSTRUCTIONS
THE ORIGINAL INSTRUCTION MANUAL CONTAINS
IMPORTANT SAFETY AND OPERATING INFORMATION.
READ AND FOLLOW THE INSTRUCTIONS CAREFULLY.
WEAR EYE,
HEARING,
AND HAND
PROTECTION
WEAR EYE AND HEARING PROTECTION WHEN
OPERATING THE CHAINSAW. WEAR GLOVES WHEN
HANDLING THE BAR AND CHAIN.
SOUND POWER SOUND POWER LEVEL IS 90 dB.
BEWARE OF
KICKBACK DANGER! KICKBACK CAN CAUSE SEVERE INJURIES.
BAR NOSE
CONTACT AVOID BAR NOSE CONTACT.
CHAIN KICKBACK
ANGLE USE LOW KICKBACK CHAIN.
TWOHANDED
HOLD HOLD SAW WITH TWO HANDS.
ONEHANDED
HOLD DO NOT HOLD SAW WITH ONE HAND.
DO NOT
INCINERATE DO NOT DISPOSE IN FLAMES.
DO NOT DISPOSE DO NOT THROW IN THE HOUSEHOLD WASTE. TAKE TO
AN AUTHORISED RECYCLER.
INDOOR USE
ONLY INTENDED FOR INDOOR USE ONLY.
SYMBOLS AND LABELS
SYMBOLS AND LABELS

13
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
PRODUCT IDENTIFICATION
KNOW THE CHAINSAW
PRODUCT IDENTIFICATION
SIDE COVER
HAND GUARD
SIDE COVER KNOB
POWERSHARP® LEVER
CHAIN
BLADE COVER
GUIDE BAR
BATTERY
PACK
SPROCKET
SHARPENING STONE
BAR-MOUNTING STUD
BATTERY PORT
BATTERY
RELEASE
CHAIN TENSIONER SCREW
SIDE COVER CHAIN CATCH
REAR HANDLE
TRIGGER SWITCH
TRIGGER LOCK-OUT
FRONT HANDLE
OIL RESERVOIR CAP
OIL INSPECTION
WINDOW

14
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
SPECIFICATIONS AND COMPONENTS
CHARGER MODEL C600
INPUT 100240V~ 5060Hz60W
OUTPUT 41.5V 1.25A
POWER CORD EU  P/N 547383
UK  P/N 547384
BATTERY PACK MODEL B400E
WEIGHT 1.23 kg 2.72 lb
TYPE LITHIUM ION
VOLTAGE, NOMINAL +37 VDC
OPERATING TEMPERATURES 0°C TO 40°C 32°F TO 104°F
CAPACITY, NOMINAL 2.4 Ah / 89 Wh
CHARGE TIME APPROX. 120 MINUTES
CHAINSAW
OIL CAPACITY 175 ml 5.9 oz)
BAR AND CHAIN OIL OREGON®
DRY WEIGHT WITH B400E 5.4 kg 12.0 lb
DRY WEIGHT WITHOUT BATTERY,
BAR, AND CHAIN 3.6 kg 7.9 lb
SOUND POWER LEVEL 90 dB
VIBRATION 2.87 m/s2(K, 1.5 m/s2)
MAX BAR LENGTH 35 cm (14 inch)
CHAIN PITCH 3/8 inch LOW PROFILE - 91
CHAIN GAUGE 1.3mm (.050 inch)
SPROCKET TEETH 6
NO LOAD CHAIN SPEED 12 m/s
SPECIFICATIONS AND COMPONENTS
REPLACEMENT COMPONENTS PART NUMBER
GUIDE BAR 35 cm (14 inch) 91 SDE,1.3mm(.050) OREGON
554874
SAW CHAIN AND STONE,
POWERSHARP® 35 cm (14 inch) 91, LOW-KICKBACK OREGON 554873
ALTERNATIVE SAW CHAIN 35 cm (14 inch) 3/8 inch LOW PROFILE
91 LOW-KICKBACK RATED CHAIN
OREGON
S52
BATTERY PACK B400E 548206
CHARGER C600 CHARGER WITH CORD EU  554933
UK  554872

15
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
CHAINSAW NAMES AND TERMS
Alternating Current: Electrical current
that reverses direction at regular
intervals.Indicatedbythesymbol .
Ampere:Aunitofelectricalcurrent.
IndicatedbythesymbolA.
Automatic Oiler:Asystemthat
automaticallylubricatestheguidebar
and saw chain.
Bucking:Theprocessofcross-cuttinga
felledtreeorlogintolengths.
Chain Brake: A device used to stop the
saw chain.
Chainsaw Powerhead: A chainsaw
without the saw chain or guide bar.
Direct Current:Electricalcurrentof
constantdirection.Indicatedbythe
symbol .
Drive Sprocket: The toothed part that
drives the saw chain.
Felling:Theprocessofcuttingdowna
tree.
Felling Back Cut: The final cut in a tree
fellingoperationmadeontheopposite
sideofthetreefromthenotching
undercut.
Front Handle: The support handle
locatedatortowardthefrontofthe
chainsaw.
Hand Guard: A structural barrier
betweenthefronthandleofachainsaw
and the guide bar, which also serves as
anactivatingmechanismforthechain
brake.
Guide Bar: A railed structure that
supports and guides the saw chain.
Kickback:Thebackwardorupward
motion,orboth,oftheguidebar
occurring when the saw chain near the
noseofthetopareaoftheguidebar
contactsanyobjectsuchasalogor
branch, or when the wood closes in and
pinches the saw chain in the cut.
Low-Kickback Chain: A chain
thatcomplieswiththekickback
performancerequirementsofANSI
B175.1.
Normal Cutting Position: Those
positionsassumedinperformingthe
buckingandfellingcuts.
Notching Undercut: A notch cut in a tree
thatdirectsthetree’sfall.
Rear Handle: The support handle
locatedatortowardtherearofthesaw.
Reduced Kickback Guide Bar: A guide
bar which has been demonstrated to
reducekickbacksignicantly.
Saw Chain:Aloopofchainhaving
cutting teeth, that cuts the wood, and
thatisdrivenbythepowerheadandis
supportedbytheguidebar.
Trigger Lock-Out: A movable stop that
prevents the unintentional operation
ofthetriggerswitchuntilmanually
actuated.
Trigger Switch: A device that when
operated will complete or interrupt an
electricalpowercircuittothemotorof
the chainsaw.
Volt:Ameasureofelectromotiveforce.
IndicatedbythesymbolV.
Watt:Ameasureofelectricalpower.
IndicatedbythesymbolW.
CHAINSAW NAMES AND TERMS

16
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
ASSEMBLY
UNPACKING
Somechainsawkitscomecompletely
assembled.Ifthechainsawhasbeen
packagedwithoutthesawchainand
guide bar installed, see“Replacing
theBarandChain”inthismanualfor
installationinstructions.Afterremoving
thechainsawfromitsbox,inspectit
carefullytomakesurenodamagehas
occurred during shipping.
Somechainsawkitscomewithmetal
buckingspikesasanaccessory.Toinstall
thespikes,positiononthefrontofthe
sawwiththespikesfacingupward,then
fastenwiththetwosuppliedscrews.
Inspectthechainsawformissingparts.
Ifanypartsaredamagedormissing,
contact OREGON® PowerNow™ to obtain
replacement parts.
DANGER: DO NOT ATTEMPT TO
OPERATE THE CHAINSAW IF ANY
PART IS DAMAGED OR MISSING.
Afterunpackingthechainsaw,check
thepositionofthehandguard.The
chainsaw will not run with the chain
brakeengaged.Pullthehandguard
backtowardsthefronthandlebefore
operation (Fig. 3).
Fig. 3
HAND GUARD IN
OPERATING POSITION
HAND GUARD IN
BRAKE POSITION
FILLING OIL RESERVOIR
Barandchainoilisrequiredto
properlylubricatethebarandchain.
UseOREGON®barandchainoilfor
bestresults.Itisspeciallydesignedto
providelowfrictionandfastercuts.
NEVER use oil or other lubricants not
specicallydesignedforuseonthebar
and chain. This can lead to a clogged
oilsystem,whichmaycausepremature
wearofthebarandchain.
Place the chainsaw on its side on a firm,
atsurface,sothattheoilcapison
top(Fig.4).Aftercleaninganydebris
fromthecaparea,removethecapand
carefullypourthebarandchainoilinto
thereservoir.Replacethecapandcheck
thepresenceofoilthroughtheoil
inspection window. Additional bar and
chainoilisnecessarywhenthereservoir
isdry,shortlyafteroilisnolonger
viewable through the oil inspection
window.
CAUTION: CHECK OIL LEVEL
FREQUENTLY AND FILL AS NEEDED.
NEVER OPERATE THE CHAINSAW IF
OIL IS NOT VISIBLE.
Fig. 4
ASSEMBLY

17
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
OPERATING THE SAW
BATTERY PACK AND CHARGER
BATTERY PACK LED CHARGE-LEVEL
INDICATOR
Thelithiumionbatterypackisequipped
with an LED charge-level indicator. To test
thechargelevelofthebatterypack,press
theindicatorbuttononthebatterypack’s
face(Fig.5).
No lights: recharge.
Onesteadygreenlight:
lessthan25%charged.Charge
batterypackbeforeuse.
Twosteadygreenlights:
26-50%charged.
Threesteadygreenlights:
51-75%charged.
Foursteadygreenlights:
76-100%charged.
Fig. 5
INDICATOR LIGHTS
INDICATOR BUTTON
CONNECTING THE CHARGER
Connect the charger cord to the charger
and to the proper electrical outlet
(Fig. 6).
Fig. 6
Onlyusethecordsetthatwassupplied
withthecharger.Atrstuse,verifythat
theplugtypematchesthereceptacle.
CHARGER LED CHARGE-STATE
INDICATOR
Thebatterychargerisequippedwithan
LED charge-state indicator that alerts
youtothestateofcharging,aswellas
conditionsthatmaydelayorprevent
charging (Fig. 7).
Note:Untilabatterypackisinserted,no
lights will be visible.
Blinkingorangelight:afault
conditionexists.Thereare
several potential causes. See
“Troubleshooting”in this manual.
Steadyorangelight:thebattery
packtemperatureisbeyondthe
acceptable range (0°C/32°F to
40°C/104°F).Allowthebattery
packtoreachtheacceptable
temperaturerangebefore
charging.Thepackmaybelefton
the charger as the temperature
adjusts.Chargingwillbegin
when the proper temperature is
reached.
Fig. 7
Blinkinggreenlight:batterypack
is charging.
Steadygreenlight:batterypack
READY FOR USE.
OPERATING THE SAW

18
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
OPERATING THE SAW
CHARGING THE BATTERY PACK
WARNING: FAILURE TO FOLLOW
PROPER CHARGING PROCEDURES
MAY CAUSE EXCESSIVE VOLTAGE,
EXCESSIVE CURRENT FLOW, LOSS
OF CONTROL DURING CHARGING,
LEAKAGE OF HAZARDOUS
CHEMICALS, HEAT GENERATION,
BURSTING, OR FIRE.
With the charger cord connected to the
charger and plugged into an electrical
outlet,alignthegroovesinthebattery
with the rails on the charger and slide
thebatterypackontothechargeruntil
fullyseated(Fig.8).
Fig. 8
Checkthecharge-stateindicatorfor
charging conditions.
INSERTING AND RELEASING
THE BATTERY PACK
Alignthegrooveinthebatterywiththe
railsinsidethebatteryport.Firmlyinsert
thebatterypackintothechainsaw’s
batteryport,pressingforwarduntilyou
hearaclickasitlocksintoplace(Fig.9).
Fig. 9
Toremovethebatterypack,liftupon
thebatteryreleaseandremovethepack
(Fig. 10).
Fig. 10

19
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
OPERATING THE SAW
GENERAL OPERATION
WARNING: ALWAYS WEAR PROPER
GLOVES AND HEARING AND EYE
PROTECTION.
This saw has an operating temperature
of0°C TO 40°C 32°F TO 104°F.
PROPER GRIP
Withthesawonarm,atsurface,
graspthefronthandlewiththeleft
hand and the rear handle with the right.
Fingersshouldwrapoverthetopof
the handle and the thumb below the
handle (Fig. 11).
GRIP WITH THUMB
BELOW HANDLE
Fig. 11
PROPER STANCE
Bothfeetshouldbeonsolidground,
withweightevenlyspreadbetween
them.
STOPPING THE SAW
Release the trigger switch to stop the
chainsaw.
TESTING THE BRAKE
Makesurethechainbrakeisworking
beforeusingthechainsaw.Tocheck
brakeoperation,startthesawonarm
atsurface,andthenmovethehand
guardforwardtomanuallyactivatethe
chainbrake.Aproperlyfunctioning
chainbrakestopsthemotorandsaw
chainimmediately.
STARTING THE SAW
Graspthetopandrearhandlesrmly.
Pressandholdthetriggerlock-outwith
thethumb(1).Tostartthesaw,squeeze
the trigger switch (2) (Fig. 12). There is
no need to continue to press the trigger
lock-out.Itwillremaindisengageduntil
the trigger is released.
(1) TRIGGER LOCK-OUT
(2) TRIGGER
SWITCH
Fig. 12
CUTTING
BASIC CUTTING
WARNING: ALWAYS BE SURE OF
FOOTING AND HOLD THE CHAINSAW
FIRMLY WITH BOTH HANDS WHILE
THE MOTOR IS RUNNING.
Assume the proper cutting grip and
stanceinfrontofthewoodwiththe
sawo.Pressthetriggerlock-outand
squeezethetriggerswitch.Letthe
chainreachfullspeedbeforebeginning
the cut.
Begincuttingbylightlypressingthe
guidebaragainstthewood.Useonly
light pressure, letting the saw do the
work.
Maintainasteadyspeedthroughoutthe
cut,releasingpressurejustbeforethe
endofthecut.

20
OREGON® PowerNow™
CHAINSAW MODEL CS250
AA 0612 - F/N 551309
OPERATING THE SAW
PRUNING
Whenpruning,makesurebystandersor
helpersareasafedistancefromfalling
branchesandnotdirectlyinfrontofor
behindthesawoperator.Secureany
branchesthatmightbehazardous.Use
properauxiliaryequipment.Maintain
goodfooting,holdthesawrmlywith
both hands, and do not overreach.
Withthesawatfullspeed,bringthe
bottomoftheguidebarintocontact
withthebranchtocut.Applylight
pressure.Forlargerbranches,rstmake
ashallowundercutonthebottomof
thebranch,thennishthecutfromthe
top.Cuttingalargebranchcompletely
fromthetopcouldcausesplintering;
acompletecutfromthebottomcan
cause the branch to pinch the bar.
Somesawshavemetalbuckingspikes
mountedtothefrontofthesaw.
Dependingonusertechnique,bucking
spikesmayreducepruningcutquality.
FELLING A TREE
Whenbuckingandfellingoperations
arebeingperformedbytwoormore
personsatthesametime,thefelling
operationshouldbeseparatedfrom
thebuckingoperationbyadistance
ofatleasttwicetheheightofthetree
beingfelled.Treesshouldnotbefelled
inamannerthatwouldendangerany
person,strikeanyutilitylineorcause
anypropertydamage.Ifthetreedoes
makecontactwithanyutilityline,the
utilitycompanyshouldbenotied
immediately.
Usetheplasticspikesonthefrontofthe
sawtosupportthesawonthewood.If
equipped,setmetalbuckingspikesinto
the wood and use as a leverage point
toincreasestabilitywhencuttinglarge
diameter wood.
Thechainsawoperatorshouldkeepon
theuphillsideoftheterrainasthetree
islikelytorollorslidedownhillafteritis
felled.Aretreatpathshouldbeplanned
andclearedasnecessarybeforecutsare
started.Theretreatpathshouldextend
backanddiagonallytotherearofthe
expectedlineoffall(Fig.13).
RETREAT PATH OPTIONS
DIRECTION
OF FALL
RETREAT
RETREAT
Fig. 13
45°
Beforefellingisstarted,considerthe
naturalleanofthetree,thelocationof
larger branches and the wind direction
tojudgewhichwaythetreewillfall.
Removedirt,stones,loosebark,nails,
staples,andwirefromthetreewhere
fellingcutsaretobemade.
1)NOTCHING UNDERCUT
Makethenotch1/3thediameter
ofthetree,perpendiculartothe
directionoffall.Makethelower
horizontalnotchingcutrst.Thiswill
helptoavoidpinchingofeitherthe
saw chain or the guide bar when the
second notch is being made (Fig. 14).
NOTCHING UNDERCUT
DIRECTION
OF FALL
NOTCH
Fig. 14