RYOBI RCS3840T Petrol Chainsaw 400mm User Manual

RYOBI RCS3840T Petrol Chainsaw 400mm

Important!

It is essential that you read the instructions in this manual before assembling, maintaining and operating the product.

Safety, performance, and dependability have been given top priority in the design of your petrol chainsaw

WHAT IN BOX

INTENDED USE

The product is only intended for use outdoors in a well ventilated area. For safety reasons the product must be adequately controlled by using two handed operation at all times.
The product 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 in domestic application by adults who have received adequate training on the hazards and preventative measures/actions to be taken whilst using it.
Do not use the product for any purpose not listed above. It is not to be used for professional tree services. The product is not to be used by children or by persons not wearing adequate personal protective equipment and clothing.

WARNING

When using the product, the safety rules must be followed. For your own safety and that of bystanders, you must read and fully understand these instructions before operating the product. You should attend a professionally organised course on the use and aid. Please keep these instructions safe for later use.

WARNING

Chainsaws are potentially dangerous tools. Accidents involving the use of chainsaws often result in loss of limbs or death. It is not just the product that is the hazard. Falling branches, toppling trees, rolling logs can all kill. Diseased or rotting timber poses additional hazards. You should assess your capability of completing the task safely. If there is any doubt, leave it to a professional tree surgeon.

SAFETY WARNINGS

GENERAL SAFETY WARNINGS

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

• Never allow children or people unfamiliar with the instructions to use the product. Local regulations may restrict the age of the operator.

• Ensure before each use that all controls and safety devices function correctly. Do not use the product if the “off” switch does not stop the engine.

• Never start or run the engine in a closed or poorly ventilated area, breathing exhaust fumes can kill.

• Clear the work area before each use, a cluttered and untidy work area leads to accidents.

• Wear full eye and hearing protection, strong sturdy gloves, safety boots with non-slip soles as well as head protection while operating the product. Use a face mask if operation is dusty.

• Do not wear loose fitting clothing, short trousers or jewellery of any kind.

• Secure long hair so it is above shoulder level to prevent entanglement in moving parts.

• Beware of thrown, flying or falling objects. Keep all bystanders, children, and animals at least 15 m away from work area.

• Never operate the product in an explosive or flammable atmosphere.

• Maintain a firm grip on both handles while using the product.

• Stay alert, watch what you are doing, and use common sense when operating the product. Do not operate the product while tired, ill or under the influence of drugs, alcohol, or medication. A lapse in concentration while operating the product may result in severe personal injury.

• Do not operate in poor lighting. The operator requires a clear view of the work area to identify potential hazards.

• 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 working area.

• Operating similar tools nearby increases both the risk of hearing injury and the potential for other persons to enter your working area.

• Keep firm footing and balance. Do not overreach. Overreaching can result in loss of balance or exposure to hot surfaces and can increase the risk of kickback.

• Keep all parts of your body away from any moving part.

• Do not touch the area around the silencer or engine of the product; these parts get very hot during operation.

• Inspect the product before each use. Check for correct operation of all controls including the chain brake. Check for loose fasteners, fuel leaks, etc. Make sure all guards and handles are properly and securely attached. Replace any damaged parts before use.

• Do not modify the product in any way or use parts and accessories which are not recommended by the manufacturer.
  WARNING
  If the product is dropped, suffers heavy impact or begins to vibrate abnormally, immediately stop the product and inspect for damage or identify the cause of the vibration.
  Any damage should be properly repaired or replaced by an authorised service centre.

• When mixing fuel or filling fuel tank, do not smoke and keep 10 m away from any source of ignition.

• Mix and store fuel only in a container approved for fuel.

• Mix fuel outdoors where there are no sparks or flames. Wipe up any fuel spillage. Move 10 m away from refueling site before starting engine.

• Stop the engine and allow it to cool before refueling, storing or transporting the product.

• Remember to properly close all fuel tank/container caps after refueling or mixing.

CHAINSAW SAFETY WARNINGS

• Always fit the guide bar cover when the product is not in use or being carried or transported. This will help reduce the risk of accidental contact with the sharp blades on the chain. Carry the product by the top handle with the guide bar facing away from your body.

• You should get used to your new product by making simple cuts on securely supported wood. Do this whenever you have not operated the product for some time.

• Cut logs on a saw horse or cradle when operating the product for the first time.

• Ensure all the guards, handles and spiked bumper are properly fitted and are in good condition.

• Persons using the product should be in good health. The product is a heavy unit so the operator requires to be physically fit. The operator should be alert, have good vision, mobility, balance and manual dexterity. If there is any doubt, do not operate the product.

• Do not stand on any unstable surface while using the product. This could include, but is not limited, to ladders, scaffolds, and trees. Keep both hands on the handles of the product at all times.

• Do not start using the product until you have a clear work area, secure footing, and a planned retreat path away from the falling tree.

• Use extreme caution when cutting small-size branches and sapling 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 in released.

• Beware of the emission of exhaust gases, lubricant mist and saw dust. Wear mask or respirator if required.

• Do not cut vines and small undergrowth (less than 75 mm in diameter).

• Always hold the product with both hands when operating it. Use a firm grip with thumbs and fingers encircling the handles of the product. Right hand must be on the rear handle and left hand on the front handle

• Before starting the engine, make sure the saw chain is not contacting any object. Always start the product with the chain brake applied (pushed fully forward).

• Do not modify your product in any way or use it to power any attachments or devices not recommended by the manufacturer for your product.

• There should be a first-aid kit containing large wound dressings and a means to summon attention (e.g., whistle) close to the operator. A larger more comprehensive kit should be reasonably nearby.

• The operator may be tempted to remove the helmet if there is no danger of falling objects in the work area, but the helmet, particularly with the mesh visor, can help reduce the potential for injury to the face and head if kickback occurs.

• An incorrectly tensioned chain can jump off the guide bar and could result in serious injury or fatality. The length of chain depends on the temperature of the chain
  and chain wear. Check the tension frequently.

• Keep handles dry, clean, and free from oil and grease. Greasy and oily handles are slippery, causing loss of control.

• To reduce the risk of injury associated with contacting moving parts, always stop the engine, apply chain brake, remove the spark plug wire and make sure all moving parts have been come to a stop before

  • cleaning or clearing a blockage
  • leaving the product unattended
  • installing or removing attachments
  • checking, maintenance or working on the product

• 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. The operator needs to be aware and in control of everything happening in this work area.

• Do not cut with your body in line with the guide bar and chain. If you do experience kickback, this will help prevent the chain from coming into contact with your head or body.

• Do not use a back-and-forward sawing motion; let the chain do the work. Keep the chain sharp, and do not try to push the chain through the cut.

• Do not put pressure on the saw at the end of the cut. Be ready to take on the weight of the saw as it cuts free from the wood. Failure to do so could result in possible serious personal injury.

• Do not stop the saw in the middle of a cutting operation. Keep the saw running until it is already removed from the cut.

Personal protective equipment
Good quality, personal protective equipment as used by professionals will help to reduce the risk of injury to the operator. The following items should be used when operating the product:

• Safety helmet
  • should comply with EN 397 and be CE marked
• Hearing protection
  • should comply with EN 352-1 and be CE marked
• Eye and face protection
  • should be CE marked and comply with EN 166 (for safety glasses) or EN 1731 (for mesh visors)
• Gloves
  • should comply with EN381-7 and be CE marked
• Leg protection (chaps)
  • should comply with EN381-5, be CE marked and provide all-round protection.
• Chainsaw safety boots
  • should comply with EN ISO 20345:2004 and be marked with a shield depicting a chainsaw to show compliance with EN 381-3. (Occasional users may use steel toe-cap safety boots with protective gaiters which conform to EN 381-9 if the ground is even and there is little risk of tripping or catching on undergrowth)
• Chainsaw jackets for upper body protection
  • should comply with EN 381-11 and be CE marked

ASSEMBLY

WARNING
If any parts are damaged or missing do not operate the product until the parts are replaced. Failure to heed this warning could result in serious personal injury.

ASSEMBLING SAW CHAIN AND GUIDE BAR

1. Stop the product. Wear protective gloves.
2. Disengage the chain brake.
3. Unscrew the guide bar locking knob and remove the sprocket cover.
4. Attach the guide bar and chain tension assembly to the chain saw. Lower the guide bar so that the bolt goes through the hole in the bar and chain tension assembly.
5. The saw chain should face in the direction of chain rotation. If they face backwards, turn the loop over.
6. Place the loop around the drive sprocket. Then place the chain drive links into the bar groove. If needed, rotate the chain tension assembly to apply some tension to the chain which will help keep it in place.
7. Replace the sprocket cover.
8. Adjust the chain tension. Refer to the “Adjusting the chain tension” section.

ADJUSTING THE CHAIN TENSION

1. Loosen the guide bar locking knob slightly by turning it counterclockwise.
2. To increase the chain tension, turn the chain tensioner adjustment ring clockwise and check the chain tension frequently. To reduce the chain tension, turn the chain tensioner adjustment ring counterclockwise and check the chain tension frequently.
3. The chain tension is correct when the gap between the cutter in the chain and the bar is between 3 mm – 4 mm. Pull the chain in the middle of the lower side of the bar downwards (away from the bar) and measure the distance between the bar and the chain cutters.
4. Tighten the guide bar locking knob by turning it clockwise.
   NOTE : The temperature of the chain increases during normal operation causing the chain to stretch. Check the chain tension frequently and adjust as required. A chain tensioned while warm may be too tight upon cooling. Make in these instructions.

OPERATING THE PRODUCT

FUEL AND REFUELLING

Handling the fuel safely
Always shut off engine before fuelling. Never add fuel to a machine with a running or hot engine. Move at least 10 metres from refuelling site before starting the engine. Do not smoke! Failure to heed this warning can result in possible personal injury.

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

• Always handle fuel with care; it is highly flammable.
• Always refuel outdoors away from potential sources of ignition, do not inhale fuel vapours.
• Do not let petrol or lubricant come in contact with skin. If contact does occur wash immediately with soap and plenty of water.
• 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.

Mixing the fuel

• The product is powered by a 2-cycle engine and requires pre-mixing petrol and 2-cycle lubricant. Premix unleaded petrol and 2-cycle engine lubricant in a clean container approved for petrol.
• This engine is certified to operate on unleaded petrol intended for automotive use with an octane rating of 91 or higher.
• Do not use any type of pre-mixed petrol/lubricant from fuel service stations; this includes the pre-mixed petrol/ lubricant intended for use in mopeds and motorcycles.
• 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 each time before fuelling.
• Mix in small quantities. Do not mix quantities larger than usable in a 30-day period. A 2-cycle 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.

Filling the fuel tank

Clean the surface around the fuel cap to prevent contamination

• Loosen the fuel cap slowly.
• Carefully pour the fuel mixture into the tank. Avoid spillage.
• Prior to replacing the fuel cap, clean and inspect the gasket.
• Immediately replace the fuel cap and hand tighten it. Wipe away any fuel spillage.

ADDING CHAIN LUBRICATING OIL

WARNING
Never work without chain lubricant. If the saw chain is running without lubricant, guide bar and saw chain can be damaged. It is therefore essential to check the oil level frequently and every time before starting to use the product.

1. Clear surface around the oil cap to prevent contamination.
2. Unscrew and remove the cap from the oil tank.
3. Pour the oil into the oil tank and monitor the oil level gauge. Ensure that no dirt enters the oil tank while filling.
4. Put the oil cap back on and tighten. Wipe away any spillage.
5. One full oil tank will enable you to use the product for 20- 40 min.
   NOTE : A properly functioning chain and bar lubricating system will normally discharge oil from the chain during use. To check the functionality of the chain and bar lubricating system, point the tip of the chain at a light coloured surface, such as a newspaper. A distinct line of oil splatter should be observed after a short time.

Recommended chain lubricating oil

The manufacturer recommends you use only Ryobi chainsaw lubricating oil. (Available from your authorised service centre)

STARTING THE PRODUCT

Starting the product 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 over past the chain line.

• Place the product on level ground and ensure that no objects or obstructions are in the immediate vicinity that could come in contact with the bar and chain.
• Hold the front handle firmly with your left hand and put your right foot onto 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 forward on the lever/hand guard.
• Fully press and release the primer bulb at least 10 times.
• Pull choke lever all the way out to the “start“ position.
• When the temperature is above 10°C, pull the starter grip until the engine attempts to start, but no more than 3 times. When the temperature is below 10°C, pull the starter grip until the engine attempts to start, but no more than 5 times.
• Push choke lever to the “half“ position. Pull starter grip until engine starts.
• Depress the trigger release and squeeze the throttle trigger, then release the throttle trigger to return the engine to idle.
• Allow the product to run idle for 15 – 30 seconds.
• Before accelerating the engine or cutting wood, make sure the chain brake is in the “run“ position by pulling back on the brake lever/hand guard.

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

To start a warm engine:

1. Turn ignition switch to the “on“ position.
2. Make sure the chain brake is in the brake position by pushing forward on the lever/hand guard.
3. Press the primer bulb 10 times.
4. Pull choke lever all the way out to the “start“ position and then push it back in the “run“ position.
5. Pull starter grip until engine runs, but no more than 5 times. Depress the trigger release and squeeze the throttle trigger, then release the throttle trigger to return the engine to idle. If engine does not start after 5 pulls, use cold engine starting procedure.
6. Before accelerating the engine or cutting wood, make sure the chain brake is in the “run“ position by pulling back on the brake lever/hand guard.

SWITCHING BETWEEN OPERATING MODES
A ventilation hatch on the right side of the air cleaner cover can be re- positioned to allow warm air to be supplied to the engine and prevents ice from forming inside the carburettor.

WARNING
Always remember to return the product to the normal operating mode when there is no risk of ice forming inside the carburettor. Failure to switch from anti- freeze mode to normal mode at normal temperatures may result in engine failure.

STOPPING THE ENGINE

• Release the throttle trigger and let the engine return to idle.
• To stop the engine, move the ignition switch to the stop (0) position. Do not put the product on the ground when the chain is still moving. For additional safety, set the chain brake when the product is not in use.
• In the event that the ignition switch will not stop the product, pull the choke lever out to the fully extended position (Full Choke) and engage the chain brake to stop the engine.
• If the ignition switch will not stop the product when set to the stop position, have the ignition switch repaired before using the product again to prevent unsafe conditions or serious injury.

HOLDING THE PRODUCT

Ensure that your left hand is holding the front handle so that your thumb is underneath.

CHECKING AND OPERATING CHAIN BRAKE

1. Engage the chain brake by rotating your left hand around the front handle. Allow the back of your hand to push the chain brake lever/hand guard toward the bar while the chain is rotating rapidly. Be sure to maintainboth hands on the handles of the product at all times.
2. Reset the chain brake back into the Run position by grasping the top of the chain brake lever/hand guard and pulling toward 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 product to an authorised service centre for repair prior to use.

WARNING
When the throttle trigger is released and the engine isrunning at idle speed, the saw chain must not move. If it does continue to move there is risk of severe injury to the operator. Do not use the product, return it to an authorised service centre for professional adjustment

CHECKING THE CLUTCH

1. Disengage the chain brake by pulling the chain brake lever/hand guard towards the front handle until a click is heard.
2. Allow the engine to run idle. Ensure that the saw chain is not rotating. If the saw chain rotates while running at idle speed, the clutch may be damaged. Do not use the product. Return it to an authorised service centre for professional adjustment.
3. Depress the throttle trigger half-way and run the product at mid speed. The saw chain should rotate smoothly if the clutch is in good working condition.

Causes and operator prevention of kickback:

• Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut.
• Tip contact in some cases may cause a sudden reverse reaction, kicking the guide bar up and back towards the operator.
• Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator.
• Either of these reactions may cause you to lose control of the saw which could result in serious personal injury. Do not rely exclusively upon the safety devices built into your saw. As a chainsaw user, you should take several steps to keep your cutting jobs free from accident or injury. Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:
• Maintain a firm grip, with thumbs and fingers encircling the chainsaw handles, with both hands on the saw and position your body and arm to allow you to resist kickback forces. Kickback forces can be controlled by the operator, if proper precautions are taken. Do not let go of the chainsaw.
• Do not overreach and do not cut above shoulder height. This helps prevent unintended tip contact and enables better control of the chainsaw in unexpected situations.
• Only use replacement bars and chains specified by the manufacturer. Incorrect replacement bars and chains may cause chain breakage and/or kickback.
• Follow the manufacturer’s maintenance instructions for the saw chain. Decreasing the depth gauge height can lead to increased kickback.

PUSH AND PULL
The reaction force is always opposite to the direction the chain is moving. Thus, the operator must be ready to control the tendency for the product to pull away (forward motion) when cutting on the bottom edge of the bar and the push backwards (towards the operator) when cutting along the top edge.

SAW JAMMED IN THE CUT

Stop the product and make it safe. Do not try to force the chain and bar out of the cut as this is likely to break the chain which may swing back and strike the operator. This situation normally occurs because the wood is incorrectly supported and forcing the cut to close under compression thereby pinching the blade. If adjusting the support does not release the bar and chain, use wooden wedges or a lever to open the cut and release the product. Never try to start the product when the guide bar is already in a cut or kerf.

INSTRUCTIONS CONCERNING THE PROPER TECHNIQUES FOR BASIC FELLING, LIMBING, AND CROSSCUTTING

Understanding the forces within the wood

When you understand the directional pressures and stresses inside the wood you can reduce the “pinches” or at least expect them during your cutting. Tension in the wood this area the “kerf” or cut will tend to open as the product goes through. If a log is being supported on a saw horse and the end is hanging unsupported over the end then tension is created on the upper surface due to the weight are being pushed together. If a cut is made in this area the kerf will have the tendency to close up during the cut. This would pinch the blade.

Felling a tree

When bucking and felling operations are being performed by two or more persons at the same time, the felling operations 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.
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.
An escape path should be planned and cleared as necessary before cuts are started. The escape path should extend back and diagonally to the rear of the expected line of fall.
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.
Do not attempt to fell trees which are rotten or have been dangerous and should only be completed by professional tree surgeons.

• Notching undercut
  Make the notch 1/3 the diameter of the tree, perpendicular to the direction of falls. Make the lower horizontal notching cut first. This will help to avoid pinching either the saw chain or the guide bar when the second notch is being made.

Felling back cut

• Make the felling back cut at least 50 mm/2 in higher than the horizontal notching cut. Keep the felling backcut 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 gets close to the hinge, the tree should begin to fall. If there is any chance that the tree may not fall in 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 aluminium to open the cut and drop the tree along the desired line of fall.
• When the tree begins to fall remove the product from the cut, stop the engine, put the product down, then use the retreat path planned. Be alert for overhead limbs falling and watch your footing.

Removing buttress roots
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 loose section from the work area. Follow the correct tree felling procedure after you have removed the large buttress roots

Bucking a log

• Bucking is cutting a log into lengths. It is important to distributed on both feet. When possible, the log should be raised and supported by the use of limbs, logs or chocks.
• Follow the simple directions for easy cutting. When the log is supported along its entire length, it is cut from the top (overbuck).
• When bucking on a slope always stand on the uphill side of the log. When “cutting through”, to maintain complete control release the cutting pressure near the end of the cut without relaxing your grip on the handles of the product.
• Don’t let the chain contact the ground. After completing the cut, wait for the saw chain to stop before you move the product. Always stop the engine before moving from tree to tree.

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 product.

Cutting spring poles

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 springpoles—they are dangerous. Do not attempt to cut bent branches or stumps which are under tension unless you are professionally trained and competent to do so

TRANSPORTATION AND STORAGE

• Stop the engine, engage the chain brake, disconnect spark plug wire from the spark plug and allow it to cool before storing or transporting.
• Clean all foreign material from the product.
• Drain all fuel from tank into a container approved for petrol. Remember to properly replace and tighten the fuel mix cap.
• Run the engine until it stops. This will remove all fuellubricant mix that could become stale and leave varnish and gum in the fuel system.
• Drain all bar and chain lubricant from tank into a container approved for lubricant. Remember to properly replace and tighten the chain lubricant cap.
• Always fit guide bar cover before storing the product, or during transportation.
• Store the product in a cool dry and well-ventilated place that is inaccessible to children. Keep away from corrosive agents such as garden chemicals and deicing salts. Do not store outdoors.
• When carrying the product for short distance (from one working area to the next), always apply the chain brake so that the saw chain is restricted from movement.
• When transporting the product, secure it against movement or falling to prevent injury to persons or damage to the product.
• Never carry or transport the product while the engine is running.

Abide by all government and local regulations for the safe storage and handling of petrol. Excess fuel should be used in other 2-cycle engine powered equipment

MAINTENANCE

Always keep the product in good working condition

WARNING
Use only original manufacturer’s replacement parts, accessories and attachments. Failure to do so can cause possible injury, poor performance and may void your warranty.
WARNING
For servicing and repairs, you have to return the product to your nearest authorised service centre. When servicing, use only identical replacement parts.
WARNING
Before inspecting, cleaning, or servicing the product, stop the engine, engage the chain brake, disconnect the spark plug wire from the spark plug. Failure to follow these instructions can result in serious personal injury or property damage.

• You may only make adjustments or repairs described in this manual. For other repairs, contact the authorised service centre.

• Consequences of improper maintenance may cause the chain brake and other safety features to not function correctly, thus increasing the potential for serious injury.
  Keep the product professionally maintained and safe.

• Sharpening the chain safely is a skilled task. Therefore the manufacturer strongly recommends that a worn or dull chain is replaced with a new one, available from your authorised service centre. The part number is available in the product specification table in thismanual.

• Follow instructions for lubricating and chain tension checking and adjustment.

• After each use, clean the product with a soft dry cloth.

• Check all nuts, bolts and screws at frequent intervals for security to ensure the product is in safe working condition. Any part that is damaged should be properly repaired or replaced by an authorised service centre

REPLACING GUIDE BAR AND SAW CHAIN

1. Stop the product. Wear protective gloves.
2. Disengage the chain brake.
3. Unscrew the guide bar locking knob and remove the sprocket cover.
4. Remove the bar and saw chain from the product.
5. Clean the underside of the sprocket.
6. To replace the bar with a new one, loosen the screw of the chain tension assembly. Mount the chain tension assembly on to the new bar and tighten the screw.
7. Attach the guide bar and chain tension assembly to the chain saw. Lower the guide bar so that the bolt goes through the hole in the bar and chain tension assembly.
8. The saw chain should face in the direction of chain rotation. If they face backwards, turn the loop over.
9. Place the loop around the drive sprocket. Then place the chain drive links into the bar groove. If needed, rotate the chain tension assembly to apply some tension to the chain which will help keep it in place.
10. Replace the sprocket cover.
11. Adjust the chain tension. Refer to the “Adjusting the chain tension” section.

CLEANING THE AIR FILTER

1. Stop the product. Make sure the chain brake is in the brake position.
2. Unscrew the locking knob on the air filter cover and remove it from the product.
3. Remove the air filter.
4. Remove the dust and dirt on the air filter with a brush. If necessary, split the air filter with a flat blade screw driver and clean the inside.
5. Replace the air filter cover and tighten the locking knob.

CLEANING THE SPARK ARRESTER

WARNING
The silencer is hot during and after operation of the product. To avoid serious personal injury, keep all body parts away from the silencer during and after operation

1. Stop the product. Make sure the chain brake is in the brake position. Allow the silencer to cool.
2. Remove the screw holding the silencer cover to the spiked bumper, then remove the two nuts on thesilencer cover.
3. Remove the silencer cover.
4. Take out the spark arrester. Clean the spark arrester screen with a small wire brush.
5. Replace the silencer cover. To replace the silencer cover, redo these steps in reverse order

WARNING
The spiked bumper is a safety feature on the product. Secure it with the correct screw after replacing the silencer cover. Failure to follow this instruction may result in serious personal injury or death

INSPECTING AND CLEANING THE CHAIN BRAKE

• Always keep the chain brake mechanism clean by lightly brushing the linkage free from dirt.
• Always test the chain brake performance after cleaning.
• Refer to “Operation – Checking and Operating Chain Brake” earlier in this manual for additional information.

ENGINE SPEED AND CARBURETTOR ADJUSTMENT

WARNING
Incorrect carburettor adjustment may increase the risk of injuries, fatal accidents, or product damage. For carburettor adjustment, bring the product to an authorised service centre.

MAINTENANCE SCHEDULE

Daily check

Fuel mixture| Before each use
Bar lubrication| Before each use
Chain tension| Before each use and frequently
Clutch engagement

(no chain movement at idling speed)

| Before each use
Chain sharpness| Before each use, visual check
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:

RESIDUAL RISK

Even when the product is used as prescribed, it is still impossible to completely eliminate certain residual risk factors. The following hazards may arise in use and the operator should pay special attention to avoid the following:

• Injury caused by vibration. Always use the right tool for the job, use designated handles and restrict working time and exposure.
• Exposure to noise can cause hearing injury. Wear ear protection and limit exposure.
• Contact with exposed saw teeth of the chain (cutting hazards).
• Unforeseen, abrupt movement or kickback of the guide bar (cutting hazards).
• Parts ejected from the saw chain (cutting/injection hazards).
• Thrown out pieces of the work piece (wood chips, splinters).
• Inhalation of saw dust and particles or emission from the petrol engine.
• Skin contact with petrol/oil.

RISK REDUCTION

It has been reported that vibrations from hand-held tools may contribute to a condition called Raynaud’s Syndrome in certain individuals. Symptoms may include tingling, upon exposure to cold. Hereditary factors, exposure to cold and dampness, diet, smoking and work practices are all thought to contribute to the development of these symptoms. There are measures that can be taken by the operator to possibly reduce the effects of vibration:

• Keep your body warm in cold weather. When operating the product wear gloves to keep the hands and wrists warm. It is reported that cold weather is a major factor contributing to Raynaud’s Syndrome.
• After each period of operation, exercise to increase blood circulation.
• Take frequent work breaks. Limit the amount of exposure per day.
• Protective gloves available from professional chainsaw retailers are designed specifically for chainsaw use and give protection and good grip. Gloves also reduce the effect of handle vibration. These gloves should comply with EN381-7 and must be CE marked.

If you experience any of the symptoms of this condition, immediately discontinue use and see your doctor.

WARNING
Injuries may be caused, or aggravated, by prolonged use of a tool. When using any tool for prolonged periods, ensure you take regular breaks.

KNOW YOUR PRODUCT

PARTS

1. Chain
2. Guide bar
3. Front hand guard/Chain brake
4. Front handle
5. Air cleaner cover
6. Starter grip
7. Rear handle
8. Spiked bumper
9. Silencer cover
10. Fuel mix cap
11. Chain lubricant cap
12. Ignition switch
13. Trigger release
14. Throttle trigger
15. Primer bulb
16. Choke lever
17. Combination wrench
18. Sprocket cover
19. Chain catcher
20. Chain tensioner adjustment ring
21. Guide bar locking knob
22. Guide bar cover

SAFETY DEVICES

LOW KICK-BACK SAW CHAIN

• A low-kick-back saw chain helps to reduce the possibility of a kickback event.
• The rakers (depth gauges) ahead of each cutter can minimize the force of a kick-back reaction by preventing the cutters from digging in too deeply. Only use replacement guide bar and chain combinations recommended by the manufacturer.
• As saw chains are sharpened, they lose some the lowkickback qualities and extra caution is required. For your safety, replace saw chains when cutting performance decreases.

SPIKED BUMPER

The integral bumper spike may be used as a pivot when making a cut. It helps to keep the body of the product steady while cutting. When cutting, push the product forward until the spikes dig into the edge of the wood, then by moving the rear handle up or down in the direction of the cutting line it can help ease the physical strain of cutting.

GUIDE BARS

Generally, guide bars with small radius tips have somewhat lower potential for kick-back. Only use replacement guide bar and chain combinations recommended by the manufacturer. The use of unrecommended guide bars increase the risk of loss of control during sawing. Regularly check the chain tension. When cutting smaller branches (less than the full length of the guide bar) the chain is more likely to be thrown off if the tension is not correct.

CHAIN BRAKE
Chain brakes are designed to quickly stop the chain rotation. When the chain brake lever/hand guard is pushed towards the bar, the chain should stop immediately. A
Chain brake does not prevent kick-back. It only lowers the risk of injury should the chain bar contact the operators body during a kick-back event. The chain brake should be tested before each use for correct operation in both the run and brake positions.

CHAIN CATCHER
A chain catcher prevents the saw chain from being thrown back towards the operator if the saw chain comes loose or breaks.

SYMBOLS ON THE PRODUCT

• Read and understand all instructions before operating the product, follow all warnings and safety instructions.
• Wear eye, ear and head protection.
• Wear non-slip safety footwear when using the product.
• Wear non-slip, heavy duty gloves.
• Beware of chain saw kickback and avoid contact with bar tip.
• Hold and operate the product properly with both hands.
• Do not operate the product using only one hand.
• Conforms to all regulatory standards in the country in the EU where the product is purchased.
• Use unleaded petrol intended for motor vehicle use with an octane rating of 91 ([R+M]/2) or higher.
• Use 2-stroke oil for air cooled engines.
• Mix the fuel mix thoroughly and also each time before refueling.
• Add bar and chain oil every time you add fuel to the product.
• Set the chain brake to the RUN position.
• Set the chain brake to the BRAKE position.
• Turn ignition switch to the ON position.
• Fully press and release the primer bulb at least 10 times.
• Set the choke lever to the full choke position.
• Set the choke lever to the half position.
• Pull starter grip until the engine starts.
• Depress the trigger release and throttle trigger.
• EurAsian Conformity Mark
• The guaranteed sound power level is 112 dB
• Bar and chain lubricant
• Unleaded petrol and 2 stroke oil.
• Run position
• Half choke position
• Full choke position
• Lock
• Unlock
• Rotate to adjust chain tension
  • + = Tighten the chain
  • – = Loosen the chain
• Moving direction of the chain. (Marked under the sprocket cover)
• Normal mode
• Anti-freeze mode
• T Idle speed adjustment
• H High Speed adjustment needle
• L Low Speed adjustment needle

SYMBOLS IN THIS MANUAL

• Parts or accessories sold separately
• Waste electrical products should not be disposed of with household waste.
• Please recycle where facilities exist.
• Note
• Warning
• Wear eye and face protection.
• Wear upper body protection.
• Wear leg protection.
• Stop the product.

The following signal words and meanings are intended to explain the levels of risk associated with the product.
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
Without safety alert symbol Indicates a situation that may result in property damage

TROUBLESHOOTING

damaged. Replace
sure ignition switch is in start| | the old spark plug with a new one and try to start again.
position “I”).| | If engine will still not start, return the product to an
| | authorised service centre for further checking.
| Flooded engine.| With the ignition switch off, remove spark plug. Move
| | choke lever to run position (pushed in completely) and pull
| | starter grip 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 grip three times with choke lever at run.
| | If engine does not start, move choke lever to choke and
| | repeat normal starting procedure. If engine still fails to
| | start, repeat procedure with a new spark plug.
Engine starts but will not| Carburettor requires “L” (Low jet)| Contact an authorised service centre for carburettor
accelerate properly.| adjustment.| adjustment.
Engine starts but will not run| Carburettor requires “H” (High jet)| Contact an authorised service centre for carburettor
roperly at high speed.| adjustment.| adjustment.
Engine does not reach full speed| Check lubricant fuel mixture.| Use fresh fuel and the correct 2-stroke lubricant mix ratio.
and/or emits excessive smoke.| |
| Air filter dirty.| Clean the air filter.
| Spark arrester screen dirty.| Clean the spark arrester screen.
| Carburettor requires “H” (High jet)| Contact an authorised service centre for carburettor
| adjustment.| adjustment.
Engine starts, runs, and| Carburettor requires adjustment.| Contact an authorised service centre for carburettor
accelerates but will not idle.| | adjustment.
Engine starts and runs, but chain| Chain lubricant tank empty.| Lubricant tank should be filled every time.
is not rotating.| |
| Check chain tension for overtight| Tension the chain.
| condition.|
| Check for lubricating function.| 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 an authorised
| | service centre.
Bar and chain running hot and| Chain brake engaged.| Release the chain brake.
smoking.| |
| Chain tension too tight.| Tension the chain.
| Check guide bar and chain for damage.| Inspect the guide bar and chain for damage.
Engine dies during normal| Product set to anti-freeze mode at| Set the product to normal operating mode. Allow the
operation and will not restart.| normal temperatures.| engine to cool down before restarting.
Engine will not start or does not| Product set to anti-freeze mode at| Set the product to normal operating mode.
reach full speed.| normal temperatures.|
Engine does not reach full speed| Product set to normal mode at low| Set the product to anti-freeze mode.
at low temperatures.| temperatures.|

SPECIFICATION

Replacement parts (Bar and chain)

• Manufacturer
• Chain
• Bar

GUARANTEE

In addition to any statutory rights resulting from the purchase, this product is covered by a guarantee as stated below.

1. The guarantee period is 24 months for consumers and commences on the date when the product was purchased. This date has to be documented by an invoice or other proof of purchase. The product is designed and dedicated to consumer and private use only. So there is no guarantee provided in case of professional or commercial use.
2. There is, in some cases (i.e. promotion, range of tools), a possibility to extend the warranty period over the period described above using the registration on the www.ryobitools.eu website. The eligibility of the tool is clearly displayed in stores and/or on packaging. The end user needs to register his/her newly-acquired tools online within 8 days from the date of purchase. The end user may register for the extended warranty in his country of residence if listed on the online registration form where this option is valid. Furthermore, end users must give their consent to the storage of the data which are required to enter online and they have to which is sent out by e-mail, and the original invoice showing the date of purchase will serve as proof of the extended warranty. Your statutory rights remain unaffected.
3. The guarantee covers all defects of the product during the warranty period due to defaults in workmanship or material at the purchase date. The guarantee is limited to repair and/or replacement and does not include any other obligations including but not limited to incidental or consequential damages. The warranty is not valid if the product has been misused, used contrary to the instruction manual, or being incorrectly connected. This guarantee does not apply to
4. any damage to the product that is the result of improper maintenance
5. any product that has been altered or modified
6. any product where original identification (trade mark, serial number) markings have been defaced, altered or removed
7. any damage caused by non-observance of the instruction manual
8. any non CE product
9. any product which has been attempted to be repaired by an non-qualified professional or without prior authorization by Techtronic Industries
10. any product connected to improper power supply (amps, voltage, frequency)
11. any product used with inappropriate fuel mixture (fuel, oil, percentage of oil)
12. any damage caused by external influences (chemical, physical, shocks) or foreign substances
13. normal wear and tear of spare parts
14. inappropriate use, overloading of the tool
15. use of non-approved accessories or parts
16. carburettor after 6 months, carburettor adjustments after 6 months
17. components (parts and accessories) subject to natural wear and tear, including but not limited to bump knobs, drive belts, clutch, blades of hedge trimmers or lawn mowers, harness, cable throttle, carbon brushes, power cord, tines, felt washers, hitch pins, blower fans, blower and vacuum tubes, vacuum bag and straps, guide bars, saw chains, hoses, connector fittings, spray nozzles, wheels, spray wands, inner reels, outer spools, cutting lines, spark plugs, air filters, gas filters, mulching blades, etc.
18. For servicing, the product must be sent or presented to a RYOBI authorized service station listed for each country in the following list of service station addresses. In some countries your local RYOBI dealer undertakes to send the product to the RYOBI service organisation. When sending a product to a RYOBI service station, the product should be safely packed without any dangerous contents such as petrol, marked with sender’s address and accompanied by a short description of the fault.
19. A repair/replacement under this guarantee is free of charge. It does not constitute an extension or a new start of the guarantee period. Exchanged parts or tools become our property. In some countries delivery charges or postage will have to be paid by the sender.
20. This guarantee is valid in the European Community, Switzerland, Iceland, Norway, Liechtenstein, Turkey and Russia. Outside these areas, please contact your authorized RYOBI dealer to determine if another warranty applies.

AUTHORISED SERVICE CENTRE
To find an authorised service centre near you, visit http://uk.ryobitools.eu/header/service-and-support/service-agents

EC DECLARATION OF CONFORMITY
Techtronic Industries GmbH Max-Eyth-Straße 10, 71364 Winnenden, Germany Herewith we declare that the product
Petrol Chainsaw
Brand : Ryobi
Model number : RCS3835T/RCS3840T

Serial number range:

• RCS3835T 44445301000001 – 44445301999999
• RCS3840T 44445401000001 – 44445401999999

is in conformity with the following European Directives and harmonised standards
2006/42/EC, 2004/108/EC, 2000/14/EC, 2005/88/EC, 97/68/EC as last amended 2012/46/EU EN ISO 11681-1:2011, EN ISO 14982:2009

Measured sound power level : 108.94 dB(A)
Guaranteed sound power level : 112 dB(A)
Conformity assessment method to Annex V Directive 2000/14/EC amended by 2005/88/EC
Notified body, 0197 TÜV Rheinland LGA Products GmbH; Tillystraße 2 D 90431 Nürnberg, Germany has carried out EC type approval, and the certificate number is : BM 50307537 000
Floyd Jeffrey Nesom (BSME) Senior Director of Engineering Winnenden, May. 29, 2015 Authorised to compile the technical file: Alexander Krug, Managing Director Techtronic Industries GmbH Max-Eyth-Straße 10, 71364 Winnenden, Germany

Techtronic Industries GmbH Max-Eyth-Straße 10, 71364 Winnenden, Germany

References

• Ryobi Danmark | Elværktøj ONE+, Havemaskiner, 36V
• Ryobi Tools

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>