RCS4240B - Brush cutter RYOBI - Free user manual and instructions

Name: RCS4240B
Brand: RYOBI
Rating: 8 (203 reviews)

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📄 178 pages

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USER MANUAL RCS4240B RYOBI

TRONÇONNAGE AVEC UN COIN

Voir figure 29.

English (Original instructions)

Your chainsaw has been engineered and manufactured to Ryobi's high standard for dependability, ease of operation, and operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.

Thank you for buying a Ryobi chainsaw.

Some regions have regulations that restrict the use of the product to some operations. Check with your local authority for advice

Safety, performance, and dependability have been given top priority in the design of this product making it easy to maintain and operate.

Save this manual for future reference

GENERAL SAFETY RULES

WARNING

Read and understand all instructions. Failure to follow the warnings and instructions may result in fire and/or serious injury.

READ ALL INSTRUCTIONS

Know your tool. Read the operator's manual carefully. Learn the saw's applications and limitations as well as the specific potential hazards related to this tool. It is strongly suggested that you seek professional training in the safety and use of this tool.
Kick-back may occur when the nose of the guide bar touches an object or when the wood closes in and pinches the saw chain in the cut. The nose of guide bar contact in some cases may cause a lightning-fast reverse reaction kicking the guide bar up and back toward the operator. Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back toward the operator. Either of these reactions may cause you to lose control of the saw, which could result in serious 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.
With a basic understanding of kick-back, you can reduce or eliminate the element of surprise. Sudden surprise contributes to accidents.
Keep a good firm grip on the saw with both hands when the engine is running. Place your right hand on the rear handle and your left hand on the front handle with your thumbs and fingers encircling the chainsaw handles. A firm grip together with a stiff left arm will help you maintain control of the saw if kickback occurs.
Make sure that the area in which you are cutting is free from obstructions. Do not let the nose of the

guide bar contact a log, branch, fence, or any other obstruction that could be hit while you are operating the saw.

Always cut with the engine running at full speed. Fully squeeze the throttle trigger and maintain a steady cutting speed.
Do not overreach or cut above chest height.
- Follow the manufacturer's sharpening and maintenance instructions for the saw chain.
Use only replacement bars and chains specified by the manufacturer or the equivalent.
- Do not operate a chainsaw with one hand. Serious injury to the operator, helpers, and/or bystanders may result from one-handed operation. A chainsaw is intended for two-handed use.
- Do not operate a chainsaw when you are fatigued.
- Do not operate this product when you are tired, ill or under the influence of alcohol, drugs or medication.
Use safety working clothes. Clothing must be sturdy and snug-fitting but allow complete freedom of movement. Always wear long pants made of heavy material to help protect your legs from contact with branches and brush. To reduce the risk of cut injuries, wear pants or chaps that contain pads of cut retardant material. Never wear scarves, ties, jewellery or other items of clothing, which might get caught in the equipment, in brush or on branches. Secure hair so it is above shoulder.
Always wear safety boots with a good tread (with non-slip soles). Wear non-slip, heavy duty protective gloves. Always wear eye protection with side shields marked to comply with EN 166 as well as hearing and head protection when operating this equipment.
- Do not stand on any unstable surface while using your chainsaw, that includes ladders, scaffolds, trees, etc.
- Maintain secure footing and balance.
Always handle fuel with care, it is highly flammable. Move 10m away from refuelling site before starting engine.
- Do not allow other persons to be nearby during starting or cutting with the chainsaw. Keep bystanders and animals out of the work area.
- Do not start cutting until you have a clear work area, secure footing, and a planned retreat path from the falling tree.
- Keep all parts of your body away from the saw chain when the engine is running.
Always carry the chainsaw with the engine stopped and the brake engaged, the guide bar and saw chain to the rear, and the silencer away from

English (Original instructions)

your body. When transporting the chainsaw, use the appropriate guide bar scabbard.

Do not operate a chainsaw that is damaged, improperly adjusted, or not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released.
Turn off the engine before putting the chainsaw down. Do not leave the engine running unattended. As an additional safety precaution, apply the chain brake before putting down the saw.
Use extreme caution when cutting small-size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance.
When cutting a limb under tension, be alert for spring-back so that you will not be struck when the tension in the wood fibres is released.
Keep the handles dry, clean, and free of lubricant or fuel mixture.
Operate the chainsaw only in well ventilated areas. Exhaust contains poisonous carbon monoxide, a colorless, odorless gas. Exhaust contains poisonous carbon monoxide, a colorless, odorless gas.
Do not operate a chainsaw in a tree unless you have been specifically trained to do so.
Do not cut from a ladder, this is extremely dangerous.
All chainsaw service, other than the items in the operator's manual maintenance instructions, should be performed by competent chainsaw service personnel. If improper tools are used to remove the flywheel or clutch, or if an improper tool is used to hold the flywheel in order to remove the clutch, structural damage to the flywheel could occur which could subsequently cause the flywheel to burst and serious injury could result.
Always have a fire extinguisher available when using chainsaw.
Use only the replacement guide bars and low kickback chains specified for your saw.

WARNING

The risk of kickback may increase if non-approved guide bar and chain combinations are used. Refer to technical specifications for qualified replacement guide bar and chain combinations.

Do not adapt your powerhead to a bow guide or use it to power any attachments or devices not listed for your saw.
Save these instructions. Refer to them frequently and use to instruct other users. If you loan someone this tool, loan them these instructions also.

SPECIFIC SAFETY RULES

A WARNING

The warnings, labels, and instructions found in this section of the operator's manual are for your safety. Failure to follow all instructions may result in serious personal injury.

Do not cut vines and/or small undergrowth (less than 76mm (3 inch) in diameter).
Silencer surfaces are very hot during and after operation of the chainsaw; keep all body parts away from the silencer. Serious burns may occur if contact is made with the silencer.
Always hold the chainsaw with both hands when the engine is running. Use a firm grip with thumbs and fingers encircling the chainsaw handles.
Never let anyone use your chainsaw who has not received adequate instructions in its proper use.
This applies to rentals as well as privately owned saws.
Before you start the engine, make sure the saw chain is not contacting any object.
Wear close-fitting clothing. Always wear heavy, long trousers, boots, and gloves. Do not wear jewellery, shorts, sandals, or go barefoot. Do not wear loose fitting clothing, which could be drawn into the engine or catch the chain or undergrowth. Wear overalls, jeans, or leggings made of cut-resistant material or ones that contain cut-resistant inserts. Secure hair so that it is above shoulder level.
Wear non-slip safety footwear and heavy-duty gloves to improve your grip and to protect your hands.
Wear eye protection which is marked to comply with EN 166 as well as head, hearing protection when operating this equipment.
Keep bystanders and animals out of the work area. Do not allow other persons to be nearby during starting or cutting with the chainsaw.

NOTE: The size of the work area depends on the job being performed as well as the size of the tree or work piece involved. For example, felling a tree requires a larger work area than making other cuts, i.e., bucking cuts etc.

Follow the sharpening and maintenance

English (Original instructions)

instructions for the saw chain.

Never operate a chainsaw that is damaged, improperly adjusted, or is not completely and securely assembled. Be sure that the saw chain stops moving when the throttle control trigger is released. If the saw chain moves at idling speed, the carburettor may need adjusting. If the saw chain still moves at idling speed after adjustment has been made, contact a Ryobi service dealer for adjustment and discontinue use until the repair is made.

REFUELLING (DO NOT SMOKE!)

To reduce the risk of fire and burn injury, handle fuel with care. It is highly flammable.
- Mix and store fuel in a container approved for petrol.
Mix fuel outdoors where there are no sparks or flames.
- Select bare ground, stop the engine, and allow it to cool before refuelling.
- Loosen the fuel cap slowly to release pressure and to keep fuel from escaping around the cap.
- Tighten the fuel cap securely after refuelling.
Wipe spilled fuel from the unit. Move 10m away from refuelling site before starting engine.
- Never attempt to burn off spilled fuel under any circumstances.

To prevent long term hearing damage, wear hearing protection and keep other persons 15m away from the work area. Operating similar tools nearby increases risk of injury.

Use of hearing protection reduces the ability to hear warnings (shouts or alarms). The operator must pay extra attention to what is going on in the work area.

KICK-BACK

Kick-back occurs when the moving chain contacts an object at the upper portion of the tip of the guide bar or when the wood closes in and pinches the saw chain in the cut. 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. Refer to "Operation" in this manual for information on kick-back and how to avoid serious personal injury.

SERVICE

Servicing requires extreme care and knowledge and should be performed only by a qualified service technician. For service we suggest you return the product to your nearest authorised service centre for repair. When servicing, use only identical replacement parts.

WARNING

To avoid serious personal injury, do not attempt to use this product until you read thoroughly and understand completely the operator's manual. If you do not understand the warnings and instructions in the operator's manual, do not use this product. Call Ryobi customer service for assistance.

Save these instructions and pass them on if the saw is to be used by another person.

INTENDED USE

This chainsaw is designed for cutting branches, trunks, logs and beams of a diameter determined by the cutting length of the guide bar. It is only designed to cut wood. It is only to be used outdoors, by adults.

Do not use the chainsaw for any purpose not listed above. This chainsaw is not to be used for professional tree services. It is not to be used by children or by persons not wearing adequate personal protective equipment and clothing.

RESIDUAL RISKS

Even when using the chainsaw as intended, there remains a residual risk of harm which cannot be fully prevented. The following list of potential hazards should be read and understood. You should pay extra attention and care to these items to reduce the risk of occurrence or injury.

Contact with exposed cutting teeth and saw chain.
Access to rotating parts (the saw chain).
Unexpected, abrupt movement (kick back) of the guide bar.
Flying chain parts (thrown off or broken).
Flying material (cut from the work piece).
Inhalation of saw dust and particles or emissions from the petrol engine.
Skin contact with petrol/oil.
Loss of hearing if no hearing protective equipment worn during use.

VIBRATION

Exposure to vibrations through prolonged use of petrol powered hand tools could cause blood vessel or nerve damage in the fingers, hands, and joints of people prone to circulation disorders or abnormal swellings. Prolonged use in cold weather has been linked to blood vessel damage in otherwise healthy people. If symptoms occur such as numbness, pain, loss of strength, change in skin color or texture, or loss of feeling in the fingers, hands, or joints, discontinue the use of this use of this tool and

English (Original instructions)

seek medical attention. An anti-vibration system does not guarantee the avoidance of these problems.

WARNING

Long term inhalation of the engine's exhaust fumes, chain oil mist and sawdust can result in serious personal injury.

SYMBOLS

Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the product better and safer.

Symbol	Designation/explanation
!	Precautions that involve your safety.
	To reduce the risk of injury, user must read and understand operator's manual before using this product.
	Always wear eye protection with side shields marked to comply with EN 166 as well as hearing and head protection when operating this equipment.
	No smoking, sparks, or open flame.
	Hold and operate the saw properly with both hands.
	Do not operate the saw using only one hand.
	Engines produce carbon monoxide which is an odorless, deadly poison. Do not operate in an enclosed area.
	Danger! Beware of kickback.
	Avoid bar nose contact.
	Wear non-slip, heavy-duty protective gloves when handling the chainsaw.
	Always wear safety boots with non-slip soles.

	Use unleaded petrol intended for motor vehicle use with an octane rating of 91 [(R + M)/2] or higher. This product is powered by 2-stroke cycle engine and requires pre-mixing petrol and 2-stroke lubricant.
	Keep all bystanders, children, and pets at least 15 m away.
	Bar and chain lubricant
CE	CE Conformity
	GOST-R Conformity
Lw 114g	Guaranteed sound power level is 114 dB.

The following signal words and meanings are intended to explain the levels of risk associated with this product.

Symbol	Signal	Meaning
!	Danger!	Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.
!	WARNING	Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
!	CAUTION	Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
	CAUTION	Indicates a situation that may result in property damage.

DESCRIPTION

Starter grip
Trigger release
Throttle trigger
Starter housing
Chain lubricant cap
Rear handle
Engine cover
Front har
Front hand guard/Chain brake
Clutch cover
Chain tensioning dial
Clutch cover lock knob
Primer bulb

English (Original instructions)

Ignition switch
Choke lever
Fuel cap
Flats on drive links
Brake position
Run position
Silencer
Start position
Run position
Kickback danger zone
Clean the chain brake
Idle speed screw "T"
26.Pull
Push
Rotational kickback
Proper hand grip position
Improper grip
Proper grip
Chain line
Thumbs on underside of handle bar
Straight arm
Planned line of fall
135 degree from planned line of fall
Path of safe retreat
Hinge - 5 cm or 1/10 diameter
Back cut
Notch approx. 1/3 diameter of the trunk
Hinge
Wedge
Vertical cut
Lodge section
Horizontal cut
Kickback
Log supported at one end
Finishing cut
Load
1st cut 1/3 diameter
Log supported at both ends
Overbucking
Underbucking
Second cut
Cut limbs one at a time and leave support limbs under tree until log is cut
Springpole
Chain drive links
Cutters
Chain rotation
Bar groove
Adjusting pin
Chain tensioning pin hole
Sprocket
Rotate clutch cover knob clockwise to secure
Loosen chain
Tighten chain
Raker (depth gauge) clearance
Inspect drive sprocket
Gullet
Heel
Rivet hole
Top plate
Cutting corner
Side plate
depth gauge
Toe
Left hand cutters
Right hand cutters
Top plate filing angle
Correct
Less than 30 degree
More than 30 degree
Incorrect
Side plate filing angle
Hook
Backward slope
Depth gauge jointer
Flat file
Restore original shape by rounding the front
Lubricating hole
Air filter
Chain brake
Post
Starter cover
Clean Engine fins
Clean flywheel fins
Fuel filter
Deflector
Deflector retaining nut
Spark arrestor
101.Bumper spike bar
102.Bolt & nut
103.Gasket
104.T25 Torx Screwdriver

KNOW YOUR TOOL.

See figure 1. 1a - 1b.

The safe use of the product requires an understanding of the information on the tool and in this operator's manual as well as a knowledge of the project you are attempting.

Before use of this product, familiarize yourself with all operating features and safety rules.

Choke lever

The choke lever opens and closes the choke valve in the carburettor.

Front hand guard/chain brake

The chain brake is designed to quickly stop the chain from rotating. When the front hand guard/chain brake is pushed

English (Original instructions)

toward the bar, the chain should stop immediately. The chain brake does not prevent kickback.

Guide bar

The factory-equipped guide bar has a small radius tip that offers reduced kickback potential.

Low kickback saw chain

The low kickback saw chain helps minimize the force of a kickback reaction by preventing the cutters from digging in too deeply at the kickback zone.

Primer bulb

The primer bulb pumps fuel from the fuel tank to the carburettor.

Throttle trigger

The throttle trigger is used for controlling chain rotation.

ASSEMBLY

WARNING

If any parts are damaged or missing do not operate this product until the parts are replaced. Failure to heed this warning could result in serious personal injury. This product has been shipped completely assembled.

WARNING

Do not attempt to modify the product or create accessories not recommended for use with the product. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.

NOTE: Your chainsaw has been fully factory tested. It is normal to find some slight lubricant residue on the saw.

WARNING

Do not operate a chainsaw that is damaged, improperly adjusted, or not completely and securely assembled. Make sure that the chain tension is correctly adjusted as specified in these instructions. Failure to heed this warning could result in serious personal injury.

UNPACKING

Carefully remove the product and any accessories from the box. Make sure that all items listed in the packing list are included.
Inspect the product carefully to make sure no breakage or damage occurred during shipping.
Do not discard the packing material until you have carefully inspected and satisfactorily operated the product.
If any parts are damaged or missing, please contact an authorised service center.

PACKING LIST

Chainsaw
Scabbard
Combination wrench
2-cycle engine lubricant
Bar and chain lubricant
Case (RCS3535CB Type III, RCS4040CB Type III)
Operator's manual

WARNING

Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury.

ADJUSTING THE CHAIN TENSION

See figure 2 - 3. See figure 37. See figure 42 - 45.

WARNING

Never touch or adjust the chain while the motor is running. The saw chain is very sharp. Always wear protective gloves when performing maintenance on the chain.

Stop the engine before setting the chain tension.
Slightly loosen the clutch cover lock knob by pressing in and rotating counter clockwise. See figure 37.
Turn the chain tensioning dial clockwise to tension the chain. See figure 44.

NOTE: A cold chain is correctly tensioned when there is no slack on the underside of the guide bar, the chain is snug, and it can be turned by hand without binding.

Re-tension the chain whenever the flats on the drive links hang out of the bar groove. See figure 3.

NOTE: During normal saw operation, the temperature of the chain increases. The drive links of a correctly tensioned warm chain will hang approximately 1.25 mm (0.05 inch) out of the bar groove. The tip of the combination wrench can be used as a guide to help determine the correct warm chain tension.

NOTE: New chains tend to stretch; check the chain

English (Original instructions)

tension frequently and tension as required. This is the same for a new tool.

Lift the tip of the guide bar up to check for sag. See figure 43.
Release the tip of the guide bar and turn the chain tensioning dial clockwise. Repeat this process until sag does not exist.
Hold the tip of the guide bar up and tighten the clutch cover lock knob securely. The chain is correctly tensioned when there is no sag on the underside of the guide bar, the chain is snug, but it can be turned by hand without binding. Ensure that the chain brake is not set.

NOTE: If chain is too tight, it will not rotate. Loosen the clutch cover lock knob by pressing in and slightly rotating counter clockwise, then rotate the chain tensioning dial counter clockwise. Lift the tip of the guide bar up and retighten the clutch cover lock knob securely. Ensure that the chain will rotate without binding.

CAUTION

A chain tensioned while warm may be too tight upon cooling. Check the "cold tension" before next use.

FUEL AND REFUELLING

WARNING

Always shut off engine before fuelling. Never add fuel to a machine with a running or hot engine. Move 10 m away from refuelling site before starting engine. Do not smoke. Failure to heed this warning could result in serious personal injury.

HANDLING THE FUEL SAFELY

WARNING

Check for fuel leaks. If any are found, correct them before using the saw to prevent fire or burn injury.

Always handle fuel with care, it is highly flammable.
Always refuel outdoors in a well ventilated area away from sparks, flames and other ignition sources. Do not inhale fuel vapour.
- Do not let petrol or lubricant come in contact with your skin. If liquid comes in contact with your skin, wash immediately with soap and water, then neutralize with lemon juice or vinegar.
- Keep petrol and lubricant away from the eyes. If petrol

or lubricant comes in contact with the eyes, wash them immediately with clean water. If irritation is still present, see a doctor immediately.

Clean up spilled fuel immediately.

MIXING THE FUEL

This product is powered by a 2-stroke engine and requires pre-mixing petrol and 2-stroke lubricant. Premix unleaded petrol and 2-stroke engine lubricant in a clean container approved for petrol.
This engine is certified to operate on unleaded petrol intended for motor vehicle use with an octane rating of 91 ([ + ) / 2) or higher.
- Do not use any type of pre-mixed petrol/lubricant from fuel service stations.
Use a high quality 2-cycle self-mixing lubricant for aircooled engines. Do not use automotive lubricant or 2-cycle outboard lubricant.
Mix 2% lubricant into the petrol. This is a 50:1 ratio.
- Mix the fuel thoroughly and also each time before refuelling.
- Mix in small quantities. Do not mix quantities larger than usable in a 30-day period. A synthetic 2-stroke lubricant containing a fuel stabiliser is recommended.

NOTE: Fuel system damage or performance problems resulting from the use of an oxygenated fuel containing more than the percentages of oxygenates stated previously are not covered under warranty.

REFUELLING (DO NOT SMOKE!)

See figure 5.

Clean surface around fuel cap to prevent contamination.
- Loosen the fuel cap slowly to release pressure and to keep fuel from escaping around the cap.
Carefully pour fuel mixture into the tank. Avoid spillage.
Prior to replacing the fuel cap, clean and inspect the gasket.
- Immediately replace fuel cap and hand tighten. Wipe up any fuel spillage.

English (Original instructions)

NOTE: It is normal for smoke to be emitted from a new engine during and after first use.

ADDING CHAIN AND BAR LUBRICANT

See figure 6.

Use Ryobi bar and chain lubricant. It is designed for chains and chain oilers, and is formulated to perform over a wide temperature range with no dilution required. Chainsaw should use approximately one tank of lubricant per tank of fuel.

NOTE: Do not use dirty, used or otherwise contaminated lubricants. Damage may occur to the lubricant pump, bar, or chain.

Carefully pour the bar and chain lubricant into the tank.
Fill the lubricant tank every time you fuel the engine.

OPERATION

WARNING

Do not allow familiarity with the product to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury.

WARNING

Wear eye protection which is marked to comply with EN 166 as well as head, hearing protection when operating this equipment. Failure to heed this warning could result in serious personal injury.

Check the operating condition of the chain brake prior to each use.

Using the back of your left hand, engage the chain brake by pushing the chain brake lever/hand guard toward the bar while the chain is rotating rapidly. Hold and operate the saw properly with both hands.
- Reset the chain brake back into the run position by grasping the right-hand side (from operator's position) of the chain brake lever/hand guard and pull towards the front handle until you hear a click.

WARNING

If the chain brake does not stop the chain immediately, or if the chain brake will not stay in the run position without assistance, take the saw to an authorised service centre for repair prior to use.

STARTING THE ENGINE

See figure 8-13.

The starting method differs depending on whether the engine is cold or warm.

WARNING

Keep your body to the left of the chain line. Never straddle the saw or chain, or lean past over the chain line.

Place the chainsaw on level ground and ensure that no objects or obstructions which could come in contact with the bar and chain are in the immediate vicinity.
Hold the front handle firmly with your left hand and put your right foot on the base of the rear handle.

NOTE: In the following starting instruction, when the choke lever is pulled all the way out to the START position, the throttle is set for starting. To reset the throttle to the RUN position, squeeze and then release the throttle trigger.

TO START A COLD ENGINE:

Turn ignition switch to the ON position.
Make sure the chain brake is in the BRAKE position by pushing forwards on the lever/hand guard.
Fully press and release the primer bulb 10 times.
Pull choke lever all the way out to the START position.
- When the temperature is above 10^ , pull the starter grip until the engine attempts to start, but no more than 3 times. When the temperature is below 10^ , pull the starter grip until the engine attempts to start, but no more than 5 times.
- Set the choke lever to "RUN" position. Pull the starter grip until the engine starts.
- Depress the trigger release. Squeeze and release the throttle trigger to let the engine idle. Before accelerating the engine or cutting wood: Make sure the chain brake is in the run position by pulling back on the lever/hand guard.

English (Original instructions)

CAUTION

Failure to release partial throttle when chain brake lever is in the brake position will result in serious damage to the unit. Never squeeze and hold the throttle trigger while the chain brake is in the brake position.

TO START A WARM ENGINE:

Turn ignition switch to the ON position.
Make sure the chain brake is in the BRAKE position by pushing forwards on the lever/hand guard.
Set the choke lever to "RUN" position.
Pull the starter grip with a quick firm and consistent upward motion (no more than 5 times) until the engine starts. If engine does not start, return to step 4 of "TO START A COLD ENGINE" and repeat the steps.
Depress the trigger release. Squeeze and release the throttle trigger to let the engine idle. Before accelerating the engine or cutting wood: Make sure the chain brake is in the run position by pulling back on the lever/hand guard.

STOPPING THE ENGINE

See figure 7. See figure 14.

Release the throttle trigger and let the engine return to idle. To stop the engine, move the ignition switch to the "O" stop position. Do not put the chainsaw on the ground when the chain is still moving. For additional safety, set the chain brake when the saw is not in use.

In the event that the ignition switch will not stop the saw, pull the choke lever out to the fully extended position (Full Choke) and engage chain brake to stop the engine. If the ignition switch will not stop the saw when set to the "O" stop position, have the ignition switch repaired before using the chainsaw again to prevent unsafe conditions or serious injury.

NOTE: When you have finished using the saw, relieve tank pressures by loosening the chain lubricant and fuel mix caps. Allow the engine to cool before storing.

ADJUSTING IDLING SPEED

See figure 15.

If the engine starts, runs, and accelerates but will not idle, turn the idling speed screw "T" clockwise to increase idling speed.
If the chain turns at idle, turn the idling speed screw "T" anticlockwise to reduce the idle RPM and stop the chain movement. If the saw chain still moves at idling speed, contact a Ryobi service dealer for adjustment and discontinue use until the repair is made.

WARNING

The saw chain should never turn at idle. Serious personal injury may result from the saw chain turning at idle.

PUSH AND PULL

See figure 16.

The reaction force is always opposite to the direction the chain is moving. Thus, the operator must be ready to control the pull when cutting on the bottom edge of the bar and the push when cutting along the top edge.

NOTE: Your chainsaw has been fully factory tested. It is normal to find some slight lubricant residue on the saw.

KICK-BACK PRECAUTIONS

See figure 17 - 18.

Rotational kick-back occurs when the moving chain contacts an object at the kick-back danger zone of the guide bar. The result is a lightning-fast, reverse reaction which kicks the guide bar up and back towards the operator. This reaction can cause loss of control which may result in serious injury.

PREPARING FOR CUTTING

PROPER GRIP ON HANDLES

See figure 19.

Wear non-slip gloves for maximum grip and protection.
Hold the saw firmly with both hands. Always keep your left hand on the front handle and your right hand on the rear handle so that your body is to the left of the chain line.

WARNING

Never use a left-handed (cross-handed) grip or any stance that would place your body or arm across the chain line.

Maintain a proper grip on the saw whenever the engine is running. The fingers should encircle the handle and the thumb be wrapped under the handlebar. This grip is least likely to be broken (by a kick-back or other sudden reaction of the saw). Any grip in which the thumb and fingers are on the same side of the handle is dangerous because a slight kick of the saw can cause loss of control.

See figure 20.

English (Original instructions)

WARNING

Do not operate the throttle trigger with your left hand and hold the front handle with your right hand. Never allow any part of your body to be in the chain line while operating a saw.

PROPER CUTTING STANCE

See figure 21.

Balance your weight with both feet on solid ground.
- Keep left arm with elbow locked in a "straight arm" position to withstand any kick-back force.
- Keep your body to the left of the chain line.
- Keep your thumb on underside of handlebar.

WORK AREA PRECAUTIONS

See figure 22.

Cut only wood or materials made from wood; no sheet metal, no plastics, no masonry, no non-wood building materials.
- Never allow children to operate your saw. Allow no person to use this chainsaw who has not read this operator's manual or received adequate instructions for the safe and proper use of this chainsaw.
- Keep everyone - helpers, bystanders, children, and animals, a safe distance from the cutting area. During felling operations, the safe distance should be at least twice the height of the largest trees in the felling area. During bucking operations, keep a minimum distance of (4.5m) 15 ft between workers.
Always cut with both feet on solid ground to prevent being pulled off balance.
- Do not cut above chest height as a saw held higher is difficult to control against kick-back.
- Do not fell trees near electrical wires or buildings. Leave this operation for professionals.
Cut only when visibility and light are adequate for you to see clearly.

BASIC OPERATING/CUTTING PROCEDURES

Practise cutting a few small logs using the following technique to get the "feel" of using your saw before you begin a major sawing operation.

Take the proper stance in front of the wood with the saw idling.
- Accelerate the engine to full throttle just before entering the cut by squeezing the throttle trigger.
Begin cutting with the saw against the log.
- Keep the engine at full throttle the entire time you are

cutting.

Allow the chain to cut for you; exert only light downward pressure. Forcing the cut could result in damage to the bar, chain, or engine.
Release the throttle trigger as soon as the cut is completed, allowing the engine to idle. Running the saw at full throttle without a cutting load may result in unnecessary wear to the chain, bar, and engine.
Do not put pressure on the saw at the end of the cut.

FELLING TREES - HAZARDOUS CONDITIONS

WARNING

Do not fell trees during periods of high wind or heavy precipitation. Wait until the hazardous weather has ended. When felling a tree, it is important that you heed the following warnings to prevent possible serious injury.

Do not cut down trees having an extreme lean or large trees with rotten or dead limbs, loose bark, or hollow trunks. Have these trees pushed or dragged down with heavy equipment, then cut them up.
Do not cut trees near electrical wires or buildings.
Check the tree for damaged or dead branches which could fall and hit you during felling.
Periodically glance at the top of the tree during the back-cut to assure the tree is going to fall in the desired direction.
If the tree starts to fall in the wrong direction, or if the saw gets caught or hung up during the fall, leave the saw and save yourself!

PROPER PROCEDURE FOR TREE FELLING

See figure 23 - 26.

Pick your escape route (or routes in case the intended route is blocked). Clear the immediate area around the tree and make sure there are no obstructions in your planned path of retreat. Clear the path of safe retreat approximately 135^ from the planned line of fall.
Consider the force and direction of the wind, the lean and balance of the tree, and the location of large limbs. These things influence the direction in which the tree will fall. Do not try to fell a tree along a line different from its natural line of fall.
Cut a notch about 1/3 the diameter of the trunk in the side of the tree. Make the notch cuts so they intersect at right angles to the line of fall. This notch should be cleaned out to leave a straight line. To keep the weight of the wood off the saw, always make the lower cut of the notch before the upper cut.

English (Original instructions)

Make the back-cut level and horizontal, and at a minimum of 2 inches (5 cm) above the horizontal cut of the notch.
NOTE: Never cut through to the notch. Always leave a band of wood between the notch and back cut (approximately 2 inches (5cm) or 1 / 10 the diameter of the tree). This is called a "hinge" or "hingewood". It controls the fall of the tree and prevents slipping or twisting or shooting-back of the tree off the stump.
- On large diameter trees, stop the back cut before it is deep enough for the tree to either fall or settle back on the stump. Then insert soft wooden or plastic wedges into the cut so they do not touch the chain. Drive wedges in, little by little, to help jack the tree over.
As tree starts to fall, stop the chainsaw and put it down immediately. Retreat along the cleared path, but watch the action in case something falls your way.

WARNING

Never cut through to the notch when making a back cut. The hinge controls the fall of the tree, this is the section of wood between the notch and backcut.

REMOVING BUTTRESS ROOTS

See figure 27.

A buttress root is a large root extending from the trunk of the tree above the ground. Remove large buttress roots prior to felling. Make the horizontal cut into the buttress first, followed by the vertical cut. Remove the resulting loose section from the work area. Follow the correct tree felling procedure after you have removed the large buttress roots.

BUCKING

See figure 28.

Bucking is the term used for cutting a fallen tree to the desired log length.

Cut only one log at a time.
Support small logs on a sawing stand or another log while bucking.
- Keep a clear cutting area. Make sure that no objects can contact the guide bar nose and chain during cutting, this can cause kick-back.
During bucking operations, stand on the uphill side so that the cut-off section of the log cannot roll over you.
Sometimes it is impossible to avoid pinching (with just standard cutting techniques) or difficult to predict which way a log will settle when cut.

BUCKING WITH A WEDGE

See figure 29.

If the wood diameter is large enough for you to insert a soft bucking wedge without touching the chain, you should use the wedge to hold the cut open to prevent pinching.

BUCKING LOGS UNDER STRESS

See figure 30.

Make the first bucking cut 1/3 of the way through the log and finish with a 2/3 cut on the opposite side. As you cut the log, it will tend to bend. The saw can become pinched or hung in the log if you make the first cut deeper than 1/3 of the diameter of the log.

Give special attention to logs under stress to prevent the bar and chain from pinching.

OVERBUCKING

See figure 31.

Begin from the top side of the log with the bottom of the saw against the log; exert light pressure downward. Note that the saw will tend to pull away from you.

UNDERBUCKING

See figure 32.

Begin from the under side of the log with the top of the saw against the log; exert light pressure upward. During unbucking, the saw will tend to push back at you.

Be prepared for this reaction and hold the saw firmly to maintain control.

LIMBING AND PRUNING

See figure 33 - 34.

Work slowly, keeping both hands on the saw with a firm grip. Maintain secure footing and balance.
- Keep the tree between you and the chain while limbing.
- Do not cut from a ladder, this is extremely dangerous. Leave this operation for professionals.
- Do not cut above chest height as a saw held higher is difficult to control against kick-back.

A WARNING

Never climb into a tree to limb or prune. Do not stand on ladders, platforms, a log, or in any position which may cause you to lose your balance or control of the saw.

When pruning trees it is important not to make the flush cut next to the main limb or trunk until you have cut off the limb further out to reduce the weight. This prevents stripping the bark from the main member.

English (Original instructions)

Underbuck the branch 1/3 through for your first cut.
Overbuck the branch to drop it.
Finish by cutting smoothly and neatly against the main member so the bark will grow back to seal the wound.

WARNING

If the limbs to be pruned are above chest height, hire a professional to perform the pruning.

CUTTING SPRING POLES

See figure 35.

A spring pole is any log, branch, rooted stump, or sapling which is bent under tension by other wood so that it springs back if the wood holding it is cut or removed. On a fallen tree, a rooted stump has a high potential of springing back to the upright position during the bucking cut to separate the log from the stump. Watch out for spring-poles; they are dangerous.

WARNING

Spring poles are dangerous and could strike the operator causing the operator to lose control of the chainsaw. This could result in severe or fatal injury to the operator.

MAINTENANCE

WARNING

When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage.

WARNING

Always wear safety goggles or safety glasses with side shields when operating this tool. If operation is dusty, also wear a dust mask.

GENERAL MAINTENANCE

Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust, oil, grease, etc.

WARNING

Do not at any time let brake fluids, gasoline, petroleum-based products, penetrating oils, etc., come in contact with plastic parts. Chemicals can damage, weaken, or destroy plastic which may result in serious personal injury.

LUBRICATION

All of the bearings in this product are lubricated with a sufficient amount of high grade lubricant for the life of the unit under normal operating conditions. Therefore, no further lubrication is required.

REPLACING THE GUIDE BAR AND CHAIN

See figure 36 - 45.

DANGER

Never start the engine before installing the guide bar, chain, drivecase cover, and clutch drum. Without all these parts in place, the clutch can fly off or explode, exposing the user to possible serious injury.

WARNING

To avoid serious personal injury, read and understand all the safety instructions in this section.

Always place the switch in the stop "O" position before you work on the saw.
- Make sure the chain brake is not set by pulling the chain brake lever/hand guard towards the front handle to the run position.

NOTE: Use only replacement bars and chains specified by the manufacturer or the equivalent.

Wear gloves when handling the chain and bar. These components are sharp and may contain burrs.
Press in on the clutch cover lock knob and rotate counter clockwise until the clutch cover can be removed.
Remove the bar and chain from the mounting surface.
Remove the old chain from the bar.
Lay out the new saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation. If they face backwards, turn the loop over.
Place the chain drive links into the bar groove.
Position the chain so there is a loop at the back of the bar.
Hold the chain in position on the bar and place the loop

English (Original instructions)

around the sprocket.

Fit the bar flush against the mounting surface so that the bar studs are in the long slot of the bar.
- Replace the clutch cover, ensuring that the adjusting pin in the clutch cover is in the bar chain tensioning pin hole.
- Replace the clutch cover and rotate clutch cover lock knob just enough to hold the cover in position.

NOTE: The bar must be free to move for tension adjustment.

Remove all slack from the chain by rotating the chain tensioning dial clockwise until the chain seats snugly against the bar with the drive links in the bar groove.
Lift the tip of the guide bar up to check for sag.
Release the tip of the guide bar and turn the chain tensioning dial clockwise. Repeat this process until sag does not exist.

Hold the tip of the guide bar up and tighten the clutch cover lock knob securely. The chain is correctly tensioned when there is no sag on the underside of the guide bar, the chain is snug, but it can be turned by hand without binding. Ensure that the chain brake is not set.

CHAIN MAINTENANCE

See figure 45 - 47.

WARNING

Check that the switch is in the STOP "O" position before you work on the saw.

Use only a low-kick-back chain on this saw. This fastcutting chain provides kick-back reduction when properly maintained.

For smooth and fast cutting, maintain the chain properly. The chain requires sharpening when the wood chips are small and powdery, the chain must be forced through the wood during cutting, or the chain cuts to one side. During maintenance of the chain, consider the following:

Improper filing angle of the side plate can increase the risk of a severe kick-back.
Raker (depth gauge) clearance. - Too low increases the potential for kick-back.

Not low enough decreases cutting ability.

If the cutter teeth hit hard objects such as nails and stones, or are abraded by mud or sand on the wood, have the Ryobi service dealer sharpen the chain.

NOTE: Inspect the drive sprocket for wear or damage when replacing the chain. If signs of wear or damage are present in the areas indicated, have the drive sprocket replaced by a Ryobi service dealer.

NOTE: If you do not fully understand the correct procedure for sharpening the chain after reading the instructions that follow, have the saw chain sharpened by an authorised service centre or replace with a recommended low-kickback chain.

SHARPENING THE CUTTERS

See figure 48 - 51.

Be careful to file all cutters to the specified angles and to the same length, as fast cutting can only be obtained when all cutters are uniform.

WARNING

The saw chain is very sharp. Always wear protective gloves when performing maintenance to the chain.

Tension the chain prior to sharpening.
Use a 4 mm (5/32 inch) diameter round file and holder. Do all your filing at the midpoint of the bar.
- Keep the file level with the top plate of the tooth. Do not let the file dip or rock.
Using light but firm pressure, stroke towards the front corner of the tooth.
- Lift the file away from the steel on each return stroke.
Put a few firm strokes on every tooth. File all left-hand cutters in one direction. Then move to the other side and file the right-hand cutters in the opposite direction.
Remove filings from the file with a wire brush.

CAUTION

A dull or improperly sharpened chain can cause excessive engine speed during cutting which may result in severe engine damage.

WARNING

Improper chain sharpening increases the potential of kick-back.

English (Original instructions)

WARNING

Failure to replace or repair a damaged chain can cause serious injury.

TOP PLATE FILING ANGLE

See figure 52.

Correct 30^ - file holders are marked with guide marks to align file properly to produce correct top plate angle.
Less than 30^ - for cross cutting.
More than 30^ - feathered edge dulls quickly.

SIDE PLATE ANGLE

See figure 53.

Correct 80^ - produced automatically if you use the correct diameter file in the file holder.
Hook - "Grabs" and dulls quickly, increases the potential of kick-back. Results from using a file with a diameter too small or a file held too low.
Backward slope - needs too much feed pressure, causes excessive wear to the bar and chain. Results from using a file with a diameter too large or file held too high.

MAINTAINING DEPTH GAUGE CLEARANCE

See figure 54 - 56.

Maintain the depth gauge at a clearance of 0.6mm (0.025 inch). Use a depth gauge tool for checking the depth gauge clearances.
Every time the chain is filed, check the depth gauge clearance.
Use a flat file (not provided) and a depth gauge jointer (not provided) to lower all gauges uniformly. Use a 0.6 mm (0.025 inch) depth gauge jointer. After lowering each depth gauge, restore original shape by rounding the front. Be careful not to damage adjoining drive links with the edge of the file.
Depth gauges must be adjusted with the flat file in the same direction the adjoining cutter was filed with the round file. Use care not to contact cutter face with flat file when adjusting depth gauges.

MAINTAINING THE GUIDE BAR

See figure 57.

WARNING

Check that the switch is in the STOP "O" position before you work on the saw.

Every week of use, reverse the guide bar on the saw to distribute the wear for maximum bar life. The bar should be cleaned every day of use and checked for wear and damage. Feathering or burring of the bar rails is a normal process of bar wear. Such faults should be smoothed with a file as soon as they occur.

A bar with any of the following faults should be replaced:

Wear inside the bar rails which permits the chain to lie over sideways
Bent guide bar
Cracked or broken rails
Spread rails

In addition, lubricate guide bars (with a sprocket at their tip) weekly. Using a grease syringe, lubricate weekly in the lubricating hole. Turn the guide bar and check that the lubrication holes and chain groove are free from impurities.

CLEANING THE AIR FILTER

See figure 58 - 59.

Activate chain brake.
Remove the two screws holding the engine cover.
- Lift the front of the engine cover past chain brake lever.
- Lift the back of the engine cover past the handle.
Before removing the air filter from the carburettor, blow or brush as much loose dirt and sawdust from around the carburettor and chamber as possible.

NOTE: Be sure to pull the choke rod out to keep the carburettor from being contaminated.

Lift the air filter off the air filter base.

Choose one of the following cleaning options:

To lightly clean, tap the filter against a smooth, flat surface to dislodge most of the saw dust and dirt particles.
For a more thorough cleaning, clean in warm soapy water, rinse, and let dry completely.

Clean every 5 hours
- Replace every 25 hours

NOTE: An alternative method is to clean the filter with compressed air (always wear eye protection to avoid eye injury).

NOTE: If you use an air hose for drying, blow through both sides of filter.

CAUTION

Make sure the air filter is correctly placed in the air filter cover before reassembly. Never run the engine without the air filter, serious damage could result.

English (Original instructions)

CLEANING THE STARTER UNIT

See figure 60.

Use a brush or compressed air to keep the cooling vents of the starter assembly free and clean of debris.

ADJUSTING THE CARBURETTOR

See figure 61.

Before adjusting the carburettor:

Use a brush to clean the starter cover vents.
Clean the air filter.
- Allow the engine to warm up prior to adjustment of engine idle speed.

WARNING

Weather conditions and altitude may affect carburetion. Do not allow bystanders close to the chainsaw while adjusting the carburettor.

Idle speed adjustment

Turn idling speed screw "T" clockwise to increase idling speed.
If chain turns at idle, turn idling speed screw "T" anticlockwise to decrease speed.

WARNING

The saw chain should never turn at idle. Serious personal injury may result from the saw chain turning at idle.

CLEANING THE ENGINE

See figure 58. See figure 62 - 64.

Clean the engine fins and flywheel fins with compressed air or a brush periodically. Dangerous overheating of the engine may occur due to impurities on the engine.

WARNING

Never run the saw without all the parts, including the drivecase cover and starter housing, securely in place.

Because parts can fracture and pose a danger of thrown objects, leave repairs of the flywheel and clutch to factory trained authorised service centre personnel.

Remove the screws and Engine cover as described previously.
Clean the Engine fins.
Lift the chain brake over the post.
Lay the chainsaw on its side with the bar and chain on the ground.
Remove the chain lubricant and fuel caps.
Remove the three screws that hold the starter housing in place.
Lift off the starter cover and set aside.
Replace chain lubricant and fuel caps to prevent contamination during cleaning.
Clean the flywheel fins.
Replace the starter housing. Reinstall screws and secure.
Replace the chain lubricant and fuel caps.
Replace the engine cover. Reinstall screws and secure.
Replace the chain brake on the post.

NOTE: Check to ensure that the air filter is in the proper position before reinstalling the engine cover

NOTE: If you notice a power loss with your gas powered tool, a qualified service technician will need to remove these deposits to restore performance.

CHECKING THE FUEL FILTER

See figure 65.

Check the fuel filter periodically. Replace it if contaminated or damaged.

REPLACING THE SPARK PLUG

See figure 66.

This engine uses a Champion RCJ4 or RCJ6Y or NGK BPMR7A with 0.63mm (0.025 inch) electrode gap. Use an exact replacement and replace every 50 hours or more frequently, if necessary.

Remove the spark plug lead, by carefully rotating back and forth whilst gently pulling upwards.
Loosen the spark plug by turning it counter clockwise with a wrench.
Remove the spark plug.

Hand thread the new spark plug, turning it clockwise. Tighten securely with wrench.

NOTE: Be careful not to cross-thread the spark plug. Cross-threading will seriously damage the engine.

Re-attach the spark plug lead by pressing firmly onto the top of the spark plug.

CLEANING THE SPARK ARRESTING SILENCER

See figure 67.

The silencer is equipped with a spark arrester screen. A faulty spark arrester screen can create a fire hazard. Through normal use, the screen can become dirty and

English (Original instructions)

should be inspected weekly and cleaned as required. Always keep the silencer and spark arrester on your saw in good condition.

WARNING

Silencer surfaces are very hot during and after operation of the chainsaw; keep all body parts away from the silencer.

Allow the silencer to cool.
Remove the nuts and screen retainer to access the spark arrester screen.
Clean spark arrester screen.
Replace the spark arrester screen if it is cracked or otherwise deteriorated.

NOTE: The spark arrester may need to be replaced after repeated use.

Always keep the chain brake mechanism clean and lightly lubricate the linkage.
Always test the chain brake performance after servicing or cleaning.

WARNING

Even with daily cleaning of the mechanism, the dependability of a chain brake to perform under field conditions cannot be certified.

TRANSPORTING THE PRODUCT

When carrying the product for short distance (from one working area to the next), always apply the brake so that the product is blocked (preferably switch off the product as well).
Never carry or transport the product while it is running.
When transporting the chainsaw, use the appropriate guide bar scabbard.
Secure the product when transporting it. Check the fuel and chain lubricant tanks for leaks. Drain the tanks prior to transport.

STORING THE PRODUCT

Clean all foreign material from the product. Store it in a well-ventilated place that is inaccessible to children. Keep away from corrosive agents such as garden chemicals and de-icing salts.
Abide by all government and local regulations for the

safe storage and handling of petrol.

WHEN STORING 1 MONTH OR LONGER:

Drain all fuel from tank into a container approved for petrol.
Run the engine until it stops. This will remove all fuel-lubricant mix that could become stale and leave varnish and gum in the fuel system.
Squeeze primer bulb several times to purge fuel from carburettor.
Drain all bar and chain lubricant from tank into a container approved for lubricant.
During transport or storage always cover with the scabbard.

MAINTENANCE SCHEDULE

Fuel mixture level	Before each use
Bar lubrication	Before each use
Chain tension	Before each use
Chain engagement (no chain movement at idling speed)	Before each use
Chain sharpness	Before each use
For damaged parts	Before each use
For loose fasteners	Before each use
For loose parts	Before each use
Chain brake function	Before each use
For fuel leaks	Before each use
Inspect and clean
Bar	Before each use
Complete saw	After each use
Air filter	Every 5 hours*
Chain brake	Every 5 hours*
Replace spark plug	Yearly
Replace fuel filter	Yearly
*Hours of operation

INSPECTION AFTER DROPPING OR OTHER IMPACTS

Thoroughly inspect the product and identify any affections or damage with it. Any part that is damaged should be properly repaired or replaced by an authorized service centre.

For fuel or chain lubrication leaks
- Chain brake function
Chain tension
For damaged, loose or broken parts
For loose or damaged fasteners
- Handles and hand guards

English (Original instructions)

TROUBLESHOOTING

Problem	Possible cause	Solution
Engine will not start (Make sure ignition switch is in start position "I").	No spark.	Clean and reinstall spark plug. Reset spark plug gap.
	Flooded engine.	With the ignition switch off, remove spark plug. Move choke lever to run position (pushed in completely) and pull starter cord 15 to 20 times. This will clear excess fuel from engine. Clean and reinstall spark plug. Set ignition switch to run (I) position. Push and fully release primer bulb 10 times. Pull starter three times with choke lever at run. If the engine does not start, set the choke lever to "FULL" position and repeat the normal starting procedure. If engine still fails to start, repeat procedure with a new spark plug.
Engine starts but will not accelerate properly.	Carburettor requires "L" (Low jet) adjustment.	Contact a Ryobi service dealer for carburettor adjustment.
Engine starts, then dies.	Carburettor requires "L" (Low jet) adjustment.	Contact a Ryobi service dealer for carburettor adjustment.
Engine starts but will not run properly at high speed.	Carburettor requires "H" (High jet) adjustment.	Contact a Ryobi service dealer for carburettor adjustment.
Engine does not reach full speed and/or emits excessive smoke.	Lubricant/fuel mixture incorrect.	Use fresh fuel and the correct 2-stroke lubricant mix ratio.
	Air filter dirty.	Clean air filter.
	Spark arrester screen dirty.	Clean spark arrester screen.
	Carburettor requires "H" (High jet) adjustment.	Contact a Ryobi service dealer for carburettor adjustment.
Engine starts, runs, and accelerates but will not idle.	Carburettor requires adjustment.	Turn idling speed screw "T" clockwise to increase idling speed.
Bar and chain running hot and smoking.	Chain lubricant tank empty.	Fill the lubricant tank every time you fuel the engine.
	Chain tension too tight.	Check chain tension for overtight condition. Make sure that the chain tension is correctly adjusted as specified in these instructions.
	The lubricant pump, bar, or chain may be damaged.	Run at half throttle 30 to 45 seconds. Stop saw and check for lubricant dripping from guide bar. If lubricant is present, the chain may be dull or bar may be damaged. If no lubricant is on the guide bar, contact a Ryobi service dealer.

English (Original instructions)

Engine starts and runs, but chain is not rotating.	Chain brake engaged.	Activate chain brake.
	Chain tension too tight.	Check chain tension for overtight condition. Make sure that the chain tension is correctly adjusted as specified in these instructions.
	Chain tension too tight.	Check guide bar and chain assembly.
	The lubricant pump, bar, or chain may be damaged.	Inspect guide bar and chain for damage. Inspect the drive sprocket for wear or damage when replacing the chain. Make sure that the chain tension is correctly adjusted as specified in these instructions.