Oregon Scientific CS250 Original Instruction Manual

AF 0513 - F/N 547361

ORIGINAL INSTRUCTION MANUAL

CHAIN SAW MODEL CS250

MANUEL D’INSTRUCTION ORIGINAL

TRONÇONNEUSE MODÈLECS250

MANUAL DE INSTRUCCIONES ORIGINAL

MOTOSIERRA MODELO CS250

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

AF 0513  F/N 547361

ENGLISH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

WARNING: READ AND UNDERSTAND 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.

FRANÇAIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

AVERTISSEMENT: VEUILLEZ LIRE ET COMPRENDRE 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.

ESPAÑOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

ADVERTENCIA: LEA Y COMPRENDA 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.

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

TABLE OF CONTENTS

AF 0513  F/N 547361

TABLE OF CONTENTS

SYMBOLS AND LABELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

GENERAL POWER TOOL SAFETY WARNINGS. . . . . . . . . . . . .4

WORK AREA SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ELECTRICAL SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

PERSONAL SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

CHAIN SAW SAFETY WARNINGS . . . . . . . . . . . . . . . . . . . . . 7

STORAGE, TRANSPORTING, AND DISPOSAL . . . . . . . . . . . . . 9

BATTERY SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

CHARGER SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

PRODUCT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

SPECIFICATIONS AND COMPONENTS . . . . . . . . . . . . . . . . . . . . 13

CHAIN SAW NAMES AND TERMS. . . . . . . . . . . . . . . . . . . . . . . . 14

ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

FILLING OIL RESERVOIR . . . . . . . . . . . . . . . . . . . . . . . . . . 15

OPERATING THE SAW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

BATTERY PACK AND CHARGER . . . . . . . . . . . . . . . . . . . . . 16

GENERAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

CUTTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SHARPENING WITH POWERSHARP®. . . . . . . . . . . . . . . . . . . . . . 22

MAINTENANCE AND CLEANING . . . . . . . . . . . . . . . . . . . . . . . . 23

REPLACING THE BAR AND CHAIN . . . . . . . . . . . . . . . . . . . 24

TENSIONING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . 25

REPLACING THE SHARPENING STONE . . . . . . . . . . . . . . . . 26

CLEANING THE SAW . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

BATTERY PACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

CHARGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

WARRANTY AND SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

©  Blount, Inc. Pricing and specifications subject to change without notice. All rights reserved. OREGON® and PowerSharp® are registered trademarks of Blount, Inc. in the United States and/or in other countries.

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

SYMBOLS AND LABELS

AF 0513  F/N 547361

SYMBOLS AND LABELS

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 PROTECTION

WEAR EYE PROTECTION WHEN OPERATING THE CHAIN SAW.

WEAR HEARING PROTECTION

WEAR HEARING PROTECTION WHEN OPERATING THE CHAIN SAW.

WEAR HAND PROTECTION

WEAR GLOVES WHEN OPERATING THE CHAIN SAW AND WHEN HANDLING THE BAR AND CHAIN.

WEAR HEAD PROTECTION

WEAR A HARD HAT WHEN USING THE CHAIN SAW.

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 AUTHORIZED RECYCLER.

DO NOT EXPOSE TO RAIN

DO NOT OPERATE THE CHARGER IN WET CONDITIONS.

INDOOR USE ONLY INTENDED FOR INDOOR USE ONLY.

OPERATING TEMPERATURE

ONLY USE THE BATTERY PACK AT A TEMPERATURE BETWEEN 32°F TO 104°F 0°C AND 40°C.

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

SAFETY RULES

AF 0513  F/N 547361

INTRODUCTION

This chain saw is designed for occasional light duty use. It is not designed to fell large trees or cut large diameter logs. This chain saw 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

GENERAL POWER TOOL SAFETY WARNINGS

WARNING: READ AND UNDERSTAND 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. THE TERM “POWER TOOL” IN THE WARNINGS REFERS TO YOUR MAINSOPERATED CORDED POWER TOOL OR BATTERY OPERATED CORDLESS POWER TOOL.

WORK AREA SAFETY

• Keep work area clean and well lit.

Cluttered or dark areas invite accidents.

• Do not operate the chain saw 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 chain saw.

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. Unmodified 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 chain saw 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.

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

SAFETY RULES

AF 0513  F/N 547361

• If operating a power tool in a damp

location is unavoidable, use a residual current device (RCD) protected supply or ground fault circuit interrupter (GFCI). Use of a RCD (GFCI) reduces the risk of

electric shock.

PERSONAL SAFETY

• Stay alert, watch what you are doing and use common sense when operating the chain saw. Do not use the chain saw while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while

operating chain saw 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 chain saw on. A

wrench or key left attached to a rotating part of the chain saw may result in personal injury.

• Do not overreach. Keep proper footing and balance at all times (Fig. ). This

enables better control of the chain saw in unexpected situations.

• Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can

be caught in moving parts.

• Use two hands when operating the chain saw.

• 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:

– Wear gloves and keep hands and body

warm.

– Maintain a firm grip on the hedge

trimmer, but do not use prolonged, excessive pressure.

– Take frequent breaks.

The vibration in normal use can differ from the stated values depending on the material being cut, maintenance of the cutting system, and other factors.

POWER TOOL USE AND CARE

• Do not force the chain saw. Use the correct chain saw for your application.

The correct chain saw will do the job better and safer at the rate for which it was designed.

• Do not use the chain saw 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

finger on the switch or energizing power tools that have the switch on invites accidents.

FIG. 1

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

SAFETY RULES

AF 0513  F/N 547361

• Disconnect the battery pack from

the chain saw before making any adjustments, changing accessories, or storing the chain saw. Such preventative

safety measures reduce the risk of starting the chain saw accidently.

• Store idle chain saws out of the reach of children and do not allow persons unfamiliar with the chain saw or these instructions to operate the chain saw.

Chain saws are dangerous in the hands of untrained users.

• Maintain the chain saw. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the chain saw’s operation. If damaged, have the chain saw 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 chain saw, 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 chain saw for

operations different 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 fire when used with another battery pack.

• Use the chain saw only with specifically designated battery packs.

Use of any other battery packs may create risk of injury and fire.

• 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 fire.

• 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 chain saw, charger, or battery pack or attempt to repair these products. Doing so could

result in electrical shock.

SERVICE

Have your chain saw serviced by a qualified repair person using only identical replacement parts.

This will ensure that the safety of the chain saw is maintained.

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

SAFETY RULES

AF 0513  F/N 547361

CHAIN SAW SAFETY WARNINGS

• Keep all parts of the body away from the saw chain when the chain saw is operating. Before you start the chain saw, make sure the saw chain is not contacting anything. A moment of

inattention while operating chain saws may cause entanglement of your clothing or body with the saw chain.

• Always hold the chain saw with your right hand on the rear handle and your left hand on the front handle (Fig. ).

Holding the chain saw with a reversed hand configuration 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 flying debris or accidental contact with the saw chain.

• Do not operate a chain saw in a tree.

Operation of a chain saw while up in a tree may result in personal injury.

• Always keep proper footing and operate the chain saw only when standing on a fixed, secure and level surface. Slippery or unstable surfaces may

cause a loss of balance or control of the chain saw.

• When cutting a limb that is under tension, be alert for spring back. When

the tension in the wood fibers is released the spring loaded limb may strike the operator and/or throw the chain saw out of control.

• Use extreme caution when cutting brush and saplings. The slender material

may catch the saw chain and be whipped toward you or pull you off balance.

• Carry the chain saw by the front handle with the chain saw switched off and away from your body. When transporting or storing the chain saw always fit the guide bar cover (Fig. ).

Proper handling of the chain saw will reduce the likelihood of accidental contact with the moving saw chain.

FIG. 2

FIG. 3

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

SAFETY RULES

AF 0513  F/N 547361

• 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 chain saw for purposes not intended. For example: do not use chain saw for cutting plastic, masonry, or non-wood building materials. Use of the chain saw

for operations different than intended could result in a hazardous situation.

• It is recommended that the first time user should have practical instruction in the use of the chain saw and the protective equipment from an experienced operator. The initial practice should be cutting logs on a saw-horse or cradle.

• Other than the wear parts identified in this manual, the chain saw has no user serviceable parts.

KICKBACK  CAUSES AND OPERATOR PREVENTION

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 chain saw 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 chain saw 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 chain saw.

• Do not overreach and do not cut above shoulder height. This helps prevent

unintended tip contact and enables better control of the chain saw in unexpected situations.

• Only use replacement bars and chains specified by OREGON®.

Incorrect replacement bars and chains may cause chain breakage and/or kickback.

• Follow the OREGON® 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 chain saw comes equipped with a chain brake, which stops both the motor and the motion of the chain when kickback occurs (Fig. ). 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. 4

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

SAFETY RULES

AF 0513  F/N 547361

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 B. when tested on a representative sample of chain saws. 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.

STORAGE, TRANSPORTING, AND DISPOSAL

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 chain saw 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

When storing the battery pack longer than nine months, follow these guidelines:

• Remove the battery pack from the chain saw or charger.

• Store in a cool, dry place.

• Keep out of reach of children or pets.

• To prolong battery life, never store battery pack in a completely discharged condition. (Fig. ).

• Store at a temperature between -°F to °F (-°C and °C).

STORING THE CHARGER

• Remove battery pack from the charger.

• Disconnect charger from power source.

• Store in a dry place.

• Keep out of reach of children or pets.

See “Maintenance and Cleaning” for more information.

FIG. 5

INDICATOR LIGHTS

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

SAFETY RULES

AF 0513  F/N 547361

TRANSPORTING THE CHAIN SAW

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 PACK

Observe national regulations when shipping lithium ion batteries. Special package labeling may be required.

BATTERY PACK DISPOSAL

Do not dispose of battery pack in household garbage or incinerate. Local waste management and recycling agencies have information on proper recycling or disposal instructions. Battery packs can be collected in the United States or Canada through Rechargeable Battery Recycling Corporation. OREGON® has already paid the costs involved to recycle battery packs. Return end of life battery packs to participating retailer or recycling center. Return locations and more information can be found at www.callrecycle.org or --BATTERY.

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.

CAUTION: DO NOT DISPOSE OF THE BATTERY PACK IN THE HOUSEHOLD WASTE OR FIRE. LITHIUM ION BATTERY PACKS SHOULD BE RECYCLED BY LOCAL AUTHORIZED RECYCLER.

CAUTION: DO NOT EXPOSE BATTERY PACK TO EXCESSIVE HEAT, SUCH AS THE INTERIOR OF A VEHICLE IN HOT WEATHER. SUCH EXPOSURE CAN CAUSE A LOSS IN PERFORMANCE AND/OR SERVICE LIFE. DO NOT ATTEMPT TO RE CHARGE A NONRECHARGEABLE BATTERY PACK.

• 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

fire 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 fire or a heater that generate temperatures above °F (°C). Overheating and/or internal short circuiting may occur.

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

SAFETY RULES

AF 0513  F/N 547361

• 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 specifically designed for the battery pack and observe the specified 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.

• Do not use OREGON® branded battery packs in non-OREGON® branded tools.

• 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 specified recharging time has elapsed, immediately stop further recharging.

• If the battery pack gives off 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.

• Any liquid leaking from the battery is corrosive, can damage eyes and skin, and may be toxic if swallowed.

CHARGER SAFETY

IMPORTANT SAFETY INSTRUCTIONS  SAVE THESE INSTRUCTIONS

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.

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 specified 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.

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

PRODUCT IDENTIFICATION

AF 0513  F/N 547361

PRODUCT IDENTIFICATION

KNOW THE CHAIN SAW

SIDE COVER

HAND GUARD / CHAIN BRAKE

SIDE COVER KNOB

POWERSHARP® LEVER

CHAIN

BLADE COVER

GUIDE BAR

BATTERY

PAC K

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

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

SPECIFICATIONS AND COMPONENTS

AF 0513  F/N 547361

SPECIFICATIONS AND COMPONENTS

REPLACEMENT COMPONENTS PART NUMBER

GUIDE BAR

14 inch (35 cm) 91 SDE, .050 inch (1.3 mm)

554874

SAW CHAIN AND STONE, POWERSHARP®

14 inch (35 cm) 91, LOW-KICKBACK

554873

ALTERNATIVE SAW CHAIN

14 inch (35 cm) 3/8 inch LOW PROFILE 91 LOW-KICKBACK RATED CHAIN

OREGON® S52

BATTERY PACK, MODEL B600E 548208 BATTERY PACK, MODEL B400E 545938 BATTERY PACK, MODEL B500S 545937

CHARGER WITH CORD, MODEL C600 540580

CHARGER WITH CORD, MODEL C750 548185

CHARGER, MODEL C600 INPUT 100240V~ 5060Hz 60W INPUT

U.S. AND CANADA ONLY 120V~ 60Hz 60W

OUTPUT 41.5V 1.25A

POWER CORD

US/CAN P/N: 546636 EU P/N: 547383

UK P/N: 547384 AU/NZ P/N: 560663 BATTERY PACK TYPE LITHIUM ION OPERATING TEMPERATURES 32°F TO 104°F 0°C TO 40°C

MODEL

CAPACITY, NOMINAL

VOLTAGE, NOMINAL

C600 CHARGE TIME APPROX.

B600E 4.00 Ah / 144 Wh +36 VDC 210 MINUTES B400E 2.40 Ah / 89 Wh +37 VDC 120 MINUTES

B500S 1.25 Ah / 47 Wh +37 VDC 60 MINUTES CHAIN SAW OIL CAPACITY 5.9 oz 175 ml) BAR AND CHAIN OIL OREGON® BRAND DRY WEIGHT WITH B400E 12.0 lb 5.4 kg DRY WEIGHT WITHOUT

BATTERY, BAR, AND CHAIN

7.9 lb 3.6 kg

SOUND POWER LEVEL 90dB VIBRATION 2.87 m/s

(K, 1.5 m/s2) MAX BAR LENGTH 14 inch (35 cm) CHAIN PITCH 3/8 inch LOW PROFILE - 91 CHAIN GAUGE .050 inch (1.3 mm) SPROCKET TEETH 6 NO LOAD CHAIN SPEED 12 m/s

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

CHAIN SAW NAMES AND TERMS

AF 0513  F/N 547361

CHAIN SAW NAMES AND TERMS

Alignment flange: The long, raised portion of the bar pad holding the mounting stud.

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.

Chain saw powerhead: A chain saw without the saw chain or guide bar.

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 chain saw.

Hand guard: A structural barrier between the front handle of a chain saw 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 B..

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 significantly.

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 turns the chain saw on and off.

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

ASSEMBLY

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ASSEMBLY

UNPACKING

DANGER: DO NOT ATTEMPT TO OPERATE THE CHAIN SAW IF ANY PART IS DAMAGED OR MISSING.

Some chain saw kits come completely assembled. If the chain saw 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 chain saw from its box, inspect it carefully to make sure no damage has occurred during shipping.

Inspect the chain saw for missing parts. If any parts are damaged or missing, contact OREGON® to obtain replacement parts at ...

IMPORTANT: AFTER UNPACKING THE CHAIN SAW, CHECK THE POSITION OF THE HAND GUARD. THE CHAIN SAW WILL NOT RUN WITH THE CHAIN BRAKE ENGAGED. PULL THE HAND GUARD BACK TOWARDS THE FRONT HANDLE BEFORE OPERATION (FIG. ).

INSTALLING BUCKING SPIKES

Some chain saw 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.

FILLING OIL RESERVOIR

CAUTION: CHECK OIL LEVEL FREQUENTLY AND FILL AS NEEDED. NEVER OPERATE THE CHAIN SAW IF OIL IS NOT VISIBLE.

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 specifically 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 chain saw on its side on a firm, flat surface, so that the oil cap is on top (Fig. ). 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 shortly after oil is no longer viewable through the oil inspection window.

FIG. 6

HAND GUARD IN OPERATING POSITION

HAND GUARD IN BRAKE POSITION

FIG. 7

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

OPERATING THE SAW

AF 0513  F/N 547361

OPERATING THE SAW

BATTERY PACK AND CHARGER

WARNING: DO NOT CHARGE THE

BATTERY PACK IN THE RAIN.

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. ).

No lights: recharge. One steady green light:

less than % charged. Charge battery pack before use.

Two steady green lights: –% charged.

Three steady green lights: –% charged.

Four steady green lights: –% charged.

CONNECTING THE CHARGER

Connect the charger cord to the charger and to the proper electrical outlet (Fig. ).

Only use the cord set that was supplied with the charger. At first 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 indicates the state of charging as well as conditions that may delay or prevent charging (Fig. ).

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 (°F/°C to °F/°C). 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.

Blinking green light: battery pack is charging.

Steady green light: battery pack is ready for use.

FIG. 8

INDICATOR LIGHTS

INDICATOR BUTTON

FIG. 9

FIG. 10

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

OPERATING THE SAW

AF 0513  F/N 547361

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. ).

Check the charge-state indicator for charging conditions.

INSERTING AND RELEASING THE BATTERY PACK

Only use the OREGON® brand battery packs specified in these operating instructions.

Align the groove in the battery with the rails inside the battery port. Firmly insert the battery pack into the chain saw’s battery port, pressing forward until it clicks as it locks into place (Fig. ).

To remove the battery pack, lift up on the battery release and remove the pack (Fig. ).

FIG. 11

FIG. 12

FIG. 13

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

OPERATING THE SAW

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GENERAL OPERATION

WARNING: ALWAYS WEAR PROPER GLOVES, HEAD, EAR, AND EYE PROTECTION.

OPERATING TEMPERATURE

This chain saw is designed to operate within a temperature range of °F to °F (°C to °C).

GRIP

With the saw on a firm, flat 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. ).

STANCE

Both feet should be on solid ground, with weight evenly spread between them.

Do not overreach and do not stand on a ladder, stepstool, or any raised position that is not fully secured.

STOPPING THE SAW

Release the trigger switch to stop the chain saw.

TESTING THE BRAKE

Make sure the chain brake is working before using the chain saw. To check brake operation, start the saw on a firm flat 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 firmly. Press and hold the trigger lock-out with the thumb (). To start the saw, squeeze the trigger switch () (Fig. ). There is no need to continue to press the trigger lock-out.

GRIP WITH THUMB

BELOW HANDLE

FIG. 14

1 TRIGGER LOCKOUT

2 TRIGGER

SWITCH

FIG. 15

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

OPERATING THE SAW

AF 0513  F/N 547361

CUTTING

BASIC CUTTING

WARNING: ALWAYS BE SURE OF FOOTING AND HOLD THE CHAIN SAW FIRMLY WITH BOTH HANDS WHILE THE MOTOR IS RUNNING.

Assume the proper cutting grip and stance in front of the wood with the saw off. 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.

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 firmly 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, first make a shallow undercut on the bottom of the branch, then finish 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 notified 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 chain saw 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. ).

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.

RETREAT PATH

OPTIONS

DIRECTION

OF FALL

RETREAT

FIG. 16

45°

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

OPERATING THE SAW

AF 0513  F/N 547361

) NOTCHING UNDERCUT

Make the notch / the diameter of the tree, perpendicular to the direction of fall. Make the lower horizontal notching cut first. This will help to avoid pinching of either the saw chain or the guide bar when the second notch is being made (Fig. ).

) FELLING BACK CUT

Make the felling back cut at least ~ in ( mm) higher than the horizontal notching cut (Fig. ). Keep the felling back cut parallel to the horizontal notching cut. Make the felling back cut so enough wood is left to act as a hinge. The hinge wood keeps the tree from twisting and falling in the wrong direction. Do not cut through the hinge.

As the felling cut gets close to the hinge the tree should begin to fall. If there is any chance that the tree may not fall in the desired direction or it may rock back and bind the saw chain, stop cutting before the felling back cut is complete and use wedges of wood, plastic or aluminum to open the cut and drop the tree along the desired line of fall.

When the tree begins to fall, remove the chain saw from the cut, stop the motor, put the chain saw down, then use the retreat path planned. Be alert for overhead limbs falling and watch footing.

) LIMBING A TREE

Limbing is removing the branches from a fallen tree. When limbing, leave larger lower limbs to support the log off the ground. Remove the small limbs in one cut. Branches under tension should be cut from the bottom up to avoid binding the chain saw (Fig. ).

) BUCKING A LOG

Bucking is cutting a log into lengths. It is important to make sure footing is firm and weight is evenly distributed on both feet. When possible, the log should be raised and supported by the use of limbs, logs or chocks.

NOTCHING UNDERCUT

DIRECTION

OF FALL

NOTCH

FIG. 17

FELLING BACK CUT

FELLING

BACK CUT

HINGE

DIRECTION

OF FALL

NOTCH

2 INCHES

FIG. 18

TREE LIMBING

LIMB CUT

KEEP WORK OFF GROUND LEAVE SUPPORT LIMBS UNTIL LOG IS CUT

FIG. 19

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

OPERATING THE SAW

AF 0513  F/N 547361

FOLLOW THESE SIMPLE DIRECTIONS FOR EASY CUTTING:

IMPORTANT: PRACTICE CUTTING LOGS ON A SAWHORSE OR CRADLE UNTIL YOU BECOME COMFORTABLE OPERATING THE SAW.

When the log is supported along its entire length, it is cut from the top (overbuck) (Fig. ).

When the log is supported on one end, cut / the diameter from the underside (underbuck). Then make the finished cut by overbucking to meet the first cut (Fig. ).

When the log is supported on both ends, cut / of that diameter from the top overbuck. Then make the finished cut by underbucking the lower / to meet the first cut (Fig. ).

When bucking on a slope, always stand on the uphill side of the log (Fig. ).

To maintain complete control when cutting through, release the cutting pressure near the end of the cut without relaxing the grip on the chain saw handles. Don’t let the chain contact the ground. After completing the cut, wait for the saw chain to stop before you move the chain saw. Always stop the motor before moving from tree to tree.

LOG IS SUPPORTED

ALONG ITS ENTIRE LENGTH

CUT FROM TOP OVERBUCK AVOID CUTTING EARTH

FIG. 20

LOG IS SUPPORTED ONE END

1ST CUT UNDERBUCK 1/3 DIAMETER TO AVOID SPLINTERING

2ND CUT OVERBUCK 2/3 DIAMETER TO MEET 1ST CUT TO AVOID PINCHING

FIG. 21

BUCKING A LOG

1ST CUT OVERBUCK 1/3 DIAMETER TO AVOID SPLINTERING

2ND CUT UNDERBUCK 2/3 DIAMETER TO MEET 1ST CUT TO AVOID PINCHING

FIG. 22

BUCKING ON A SLOPE

STAND ON UPHILL SIDE WHEN CUTTING BECAUSE LOG MAY ROLL

FIG. 23

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

SHARPENING WITH POWERSHARP®

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SHARPENING WITH POWERSHARP®

WARNING: POWERSHARP® SHOULD NOT BE USED IN THE PRESENCE OF EXPOSED, EXTREMELY FLAMMABLE MATERIALS SUCH AS GASOLINE AND ACETYLENE.

CAUTION: SHARPENING WITH THE POWERSHARP® SYSTEM PRODUCES LOW ENERGY SPARKS.

INTRODUCTION TO POWERSHARP®

This chain saw is equipped with the PowerSharp® integrated sharpening system, a fast and easy way to sharpen chain on the saw. It is time to sharpen the saw chain when cuts take longer or the wood chips become smaller, in extreme cases turning to saw dust.

OPERATION

IMPORTANT: THE POWERSHARP® INTEGRATED SHARPENING SYSTEM IS FOR USE ONLY WITH POWERSHARP® CHAIN. NEVER ATTEMPT TO SHARPEN OTHER CHAIN WITH THE INTEGRATED SHARPENER. DAMAGE TO THE CHAIN AND SHARPENER WILL OCCUR.

IMPORTANT: POWERSHARP® CHAIN USES UNIQUE TOPSHARPENING CUTTERS AND CAN ONLY BE SHARPENED WITH A GENUINE POWERSHARP® SHARPENER.

• With the saw at full speed, lightly lift the PowerSharp® lever for – seconds (Fig. ). Sparks will be visible when the cutters are in contact with the sharpening stone.

• Make a test cut to determine if the chain has been sufficiently sharpened. If not, repeat the sharpening procedure until the chain is sufficiently sharp.

IMPORTANT: DO NOT APPLY TOO MUCH FORCE WHEN SHARPENING. EXCESSIVE FORCE CAN REDUCE THE PERFORMANCE OF THE SHARPENING STONE.

IMPORTANT: IT IS NORMAL TO SEE A SMALL AMOUNT OF SPARKS AND SMOKE DURING SHARPENING AS THE CUTTERS CONTACT THE STONE AND FRICTION HEATS THE CHAIN.

WHEN TO REPLACE THE SHARPENING STONE

The sharpening stone is designed to wear at the same rate as the chain. Always replace the stone when replacing the chain, even if it appears to have more life. See “Replacing the Sharpening Stone” in this manual.

FIG. 24

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

MAINTENANCE AND CLEANING

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MAINTENANCE AND CLEANING

WARNING: INSPECT THE CHAIN SAW. REGULAR INSPECTION IS THE FIRST STEP TO PROPER MAINTENANCE. BY FOLLOWING THE GUIDELINES BELOW, YOU CAN MAXIMIZE SAFETY AND SATISFACTION. SHOULD YOU IDENTIFY ANY DAMAGED OR EXCESSIVELY WORN PARTS, REPLACE THEM IMMEDIATELY. FAILURE TO IDENTIFY AND REPLACE DAMAGED OR WORN PARTS CAN CAUSE SERIOUS PERSONAL INJURY.

WARNING: REMOVE THE BATTERY PACK FROM THE CHAIN SAW BEFORE INSPECTING, CLEANING, OR PERFORMING MAINTENANCE. A BATTERY OPERATED TOOL WITH THE BATTERY PACK INSERTED IS ALWAYS ON AND CAN START ACCIDENTLY.

CAUTION: WHEN CLEANING THE CHAIN SAW, DO NOT IMMERSE IN WATER OR OTHER LIQUIDS.

BEFORE EACH USE

• Handles: Front and rear handles should

not have cracks or other damage. They should be clean and dry.

• Hand Guard: The hand guard should be

free of damage and able to move easily back and forth. When moved, the hand guard should activate the chain brake.

• Guide Bar: The guide bar should be

straight and free of chips, cracks, or excessive wear.

• Saw Chain: The chain should be properly

tensioned, and all components free of cracks, chips, or excessive wear.

• Side Cover: The side cover should be free of cracks or other damage. It should fit tightly to the saw body with no warping. Make sure the chain catch is free of cracks.

• Battery Pack: The battery pack should be clean, dry, with no signs of puncture, impact, or other damage. The contacts should be clean, dry and free of debris.

• Battery Port: The battery port and contacts should be clean, dry, and free of debris.

• Chain Brake: Test the chain brake to make sure it is functioning properly.

• Oil Level: Oil should fill the inspection window. If not, fill the oil reservoir before use.

• Motor Cover: Check for cracks in the cover and debris in the air intake vents.

PERIODICALLY

• Drive Sprocket: Look for deep grooves, broken teeth, or burrs.

• Tensioning Screw: Inspect the head and body of the tensioning screw for excessive wear, stripped or crossed threads, or other damage.

• Bar-Mounting Area: Make sure the barmounting stud is not bent, stripped, or cross-threaded and that the bar pad and alignment flange are free of debris and intact.

• Charger: The charger should be clean, dry, and free of punctures or other damage. The battery tray and contacts should be free of debris.

OREGON® CORDLESS TOOL SYSTEM

CHAIN SAW MODEL CS250

MAINTENANCE AND CLEANING

AF 0513  F/N 547361

REPLACING THE BAR AND CHAIN

CAUTION: ONLY POWERSHARP® SAW CHAIN CAN BE SHARPENED BY THE POWERSHARP® LEVER ON THE CHAIN SAW.

WARNING: 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 CHAIN SAW.

Wear gloves. Turn the chain saw off and let it cool. Remove the battery pack, loosen the side cover knob (Fig. ), and remove the side cover. 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:

• Remove the sharpening stone if

replacing with a chain other than PowerSharp®.

• 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 (Fig. ), making sure the bar adjusting pin is inserted in the bottom hole in the tail of the bar.

• Loop the new chain onto the drive sprocket with teeth cutting edges facing away from along the 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. ). Adjust the position of the bar adjusting pin until it engages the hole in the bar.

FIG. 25

FIG. 26

FIG. 27

OREGON® CORDLESS TOOL SYSTEM CHAIN SAW MODEL CS250

MAINTENANCE AND CLEANING

AF 0513  F/N 547361

• Reattach the side cover, making sure the chain catch is properly seated in its hole. Lightly tighten the side cover knob (Fig. ).

IMPORTANT: THE SAW CHAIN MUST BE PROPERLY TENSIONED BEFORE USING. SEE TENSIONING INSTRUCTIONS BELOW.

* To even bar wear and maximize bar

life, invert the bar occasionally.

TENSIONING INSTRUCTIONS

• Wear gloves. Remove the battery before tensioning. Loosen the side cover knob, hold up the nose of the bar, and tighten the chain tensioning screw (Fig. ).

• Tighten the side cover knob securely.

Chain tension is correct when, with some effort, with a gloved hand you are able to pull the chain smoothly around the bar. The chain should touch the underside of the bar rail (Fig. ).

During its early life use, run the chain saw, not cutting for a minute or two, making sure the chain is getting a good supply of oil. Stop the motor and check the chain tension. If it has loosened, readjust.

After a short period of use, allow the chain to cool and once again recheck the tension (remove the battery first). Watch tension carefully for the first half-hour of use and periodi cally throughout the life of the chain, readjusting as required when the chain and bar are cool to the touch. Never tighten chain when it is hot.

Lubricate the chain properly with OREGON® brand bar and chain oil. It has been specially formulated to maximize power and reduce friction. Make certain the chain is getting an adequate supply of oil. Oil should be thrown from the nose of the bar when the chain saw is running, but not in the cut.

Saw chain will stretch as a result of normal use, but insufficient oil, aggressive use, or failure to perform recommended maintenance can lead to premature stretching.

FIG. 28

FIG. 29

FIG. 30

+ 63 hidden pages

Oregon Scientific CS250 Original Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual