RYOBI RCS 1935B Electric Chain Saw User Manual

: June 9, 2024
: RYOBI

RYOBI RCS1935B Electric Chainsaw

ORIGINAL INSTRUCTIONS

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

Subject to technical modification
Safety, performance, and dependability have been given top priority in the design of your electric chainsaw.

INTENDED USE

The electric chainsaw is only intended for use outdoors. 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 the domestic applications by adults who have received adequate training on the hazards and preventative measures/actions to be taken while using the product. The product is not to be used by children or by persons not wearing adequate personal protective equipment and clothing. It is also not to be used for professional tree services. Do not use the product for any other purpose.

WARNING

When using the product, 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 organized course on the use and maintenance of chainsaws, preventative actions, and fi rst 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 chainsaw that is the hazard. Falling branches, toppling trees, and 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.

GENERAL POWER TOOL SAFETY WARNINGS

WARNING

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fi re and/or serious injury. Save all warnings and instructions for future reference. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery- operated (cordless) power tool.

WORK AREA SAFETY

Keep the work area clean and well lit. Cluttered or dark areas invite accidents.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks that may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

ELECTRICAL SAFETY

Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

PERSONAL SAFETY

Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.

POWER TOOL USE AND CARE

Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the power tool, accessories and tool bits etc, in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

SERVICE

Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

ADDITIONAL 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 power tool if the “off” switch does not stop the motor.
Wear full eye and hearing protection, strong sturdy gloves, 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.
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 and can increase the risk of kickback.
Keep all parts of your body away from any moving part.
Inspect the product before each use. Check for the correct operation of all controls, including the chain brake. Check for loose fasteners, and 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.
A power spike causes voltage fluctuations and may affect other electrical products in the same power line. Connect the product to a power supply with an impedance equal or less than 0.33 Ω to minimize voltage fluctuations. Contact your electric power supplier for further clarification.

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.

Electrical power should be supplied via a residual current device (RCD) with a tripping current of not more than 30 mA.
If you need to use an extension cable, ensure it is suitable for outdoor use and has a current capacity sufficient to supply your product. Check it before every use for damage. Always uncoil it during use because coiled cables can overheat. Damaged extension cables should not be repaired; they should be replaced with an equivalent type.
If the power cable becomes damaged, it must be replaced before using.
Make sure the power cord is positioned so that it cannot be damaged by the cutting means and will not be stepped on, tripped over, or otherwise subjected to damage or stress.
Never pick up or carry the product by the electric cable. Never pull the power cord to disconnect from the power supply.
Keep the power cord away from heat, oil, and sharp edges.
Before every use, examine the supply cord for damage. If there are signs of damage, it must be replaced by a qualified person at an authorised service centre to avoid a hazard.

CHAINSAW SAFETY WARNINGS

Keep all parts of the body away from the saw chain when operating the product. Before you start the chainsaw, make sure the saw chain is not contacting anything. A moment of inattention while operating chainsaws may cause entanglement of your clothing or body with the saw chain.
Always hold the chainsaw with your right hand on the rear handle and your left hand on the front handle. Holding the chainsaw with a reversed hand configuration increases the risk of personal injury and should never be done.
Hold the power tool by the insulated gripping surface only, because the saw chain may contact hidden wiring or its own cord. Saw chains contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
Wear safety glasses and hearing protection. Further protective equipment for head, hands, legs and feet is recommended. Adequate protective clothing will reduce personal injury by flying debris or accidental contact with the saw chain.
Do not operate a chainsaw in a tree. Operation of a chainsaw while up in a tree may result in personal injury.
Always keep proper footing and operate the chainsaw only when standing on fixed, secure and level surface. Slippery or unstable surfaces such as ladders may cause a loss of balance or control of the chainsaw.
When cutting a limb that is under tension be alert for spring back. When the tension in the wood fibres is released the spring loaded limb may strike the operator and/or throw the chainsaw out of control.
Use extreme caution when cutting brush and saplings. The slender material may catch the saw chain and be whipped toward you or pull you off balance.
arry the chainsaw by the front handle with the chainsaw switched off and away from your body. When transporting or storing the chainsaw always fit the guide bar cover. Proper handling of the chainsaw will reduce the likelihood of accidental contact with the moving saw chain.
Follow instructions for lubricating, chain tensioning and changing accessories. Improperly tensioned or lubricated chain may either break or increase the chance for kickback.
Keep handles dry, clean, and free from oil and grease. Greasy, oily handles are slippery causing loss of control.
Cut wood only. Do not use chainsaw for purposes not intended. For example: do not use chainsaw for cutting plastic, masonry or non-wood building materials. Use of the chainsaw for operations different than intended could result in a hazardous situation.

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 sharpening and maintenance instructions for the saw chain. Decreasing the depth gauge height can lead to increased kickback.

ADDITIONAL CHAINSAW SAFETY WARNINGS

It is recommended to cut logs on a saw-horse or cradle when operating the product the first time.
Ensure all 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 heavy, so the operator must be physically fit. The operator should be alert, have a good vision, mobility, balance, and manual dexterity. If there is any doubt, do not operate the product.
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.
Beware of the emission of lubricant mist and saw dust. Wear a mask or respirator, if required.
If the power cable becomes damaged, have the product serviced by an authorised service centre only.
Always keep the power cable tidy and away from the area of cutting. Apart from the danger of electrocution, untidy cables cause falls and trips.
Do not cut vines and/or small undergrowth (less than 75 mm in diameter).
Always hold the chainsaw with both hands during operation. Use a firm grip with thumbs and fingers encircling the chainsaw handles. Right hand must be on the rear handle and left hand on the front handle.
Before starting the product, make sure the saw chain is not contacting any object.
Do not modify the product in any way or use it to power any attachments or devices not recommended by the manufacturer for your saw.
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.
Wear a helmet at all times when operating the product. A helmet, equipped with mesh visor, can help reduce the risk of injury to the face and the 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. Check the tension frequently.
You should get used to your new chainsaw by making simple cuts on securely supported wood. Do this whenever you have not operated the saw for some time.
To reduce the risk of injury associated with contacting moving parts, always stop the motor, apply chain brake, and remove the plug from the power outlet. Make sure all moving parts have come to a complete stop:
- before leaving the product unattended
- before cleaning or clearing a blockage
- before installing or removing attachments
- before checking, conducting 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, etc. 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 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 don’t 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 showcompliance 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

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 means the fi bers are being pulled apart and if you cut in this area, the “kerf” or cut will tend to open as the saw 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 of the overhanging log stretching the fi bers. Likewise, the underside of the log will be in compression and the fi bers 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
See page 273 – 274. 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. If the tree does make contact with any utility line, the company should be notifi ed immediately. The chainsaw operator should keep on the uphill side of the terrain as the tree is likely to roll or slide downhill after it is felled. 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 starts, 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 damaged by wind, fi re, lightning, etc. This is extremely dangerous and should only be completed by professional tree surgeons.

Notching undercut
See page 273 – 274. Make the notch 1/3 the diameter of the tree, perpendicular to the direction of the fall. 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
See page 273 – 274. Make the felling back cut at least 50 mm. / 2 in. higher than the horizontal notching cut. Keep the felling-back cut parallel to the horizontal notching cut. Make the felling back cut so enough wood is left to act as a hinge. The hinge wood keeps the tree from twisting and falling in the wrong direction. Do not cut through the hinge. As the felling 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 chainsaw from the cut, stop the motor, put the chainsaw down, and use the retreat path planned. Be alert for falling overhead limbs and watch your footing.

Removing buttress roots
See page 274.
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 fi rst, 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.

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. Engage always fi rmly the bumper spike to avoid such movement. The product can be pushed backwards (towards the operator) when cutting along the top edge. To avoid this make sure the chain is not jammed when cutting along the top edge.

Saw jammed in the cut
Stop the chainsaw 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 which forces 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 saw. Never try to start the chainsaw when the guide bar is already in a cut or kerf.

Skating / Bouncing
When the chainsaw fails to dig in during a cut, the guide bar can begin hopping or dangerously skidding along the surface of the log or branch, possibly resulting in the loss of control of the chainsaw. To prevent or reduce skating or bouncing, always use the saw with both hands. Make sure the saw chain establishes a groove for cutting. Never cut small, fl exible branches or brushes with your chainsaw. Their size and fl exibility can easily cause the saw to bounce towards you or bind up with enough force to cause a kickback. The best tool for that kind of work is a hand saw, pruning shears, an axe or other hand tools.

Bucking a log
See page 275.
Bucking is cutting a log into lengths. It is important to make sure your footing is fi rm and your weight is evenly 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 the log is supported on one end, cut 1/3 the diameter from the underside (underbuck). Then make the fi nished cut by overbucking to meet the fi rst cut. When the log is supported on both ends, cut 1/3 the diameter from the top (overbuck). Then make the fi nished cut by underbucking the lower 2/3 to meet the fi rst cut. When bucking on a slope always stand on the uphill side of the log. To maintain control when “cutting through”, release the cutting pressure near the end of the cut without relaxing your grip on the chainsaw handles. Don’t let the chain contact the ground. After completing the cut, wait for the saw chain to stop before you move the chainsaw. Always stop the motor before moving from tree to tree.

Limbing a tree
See page 276. 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 chainsaw.

Springpoles
See page 276. A springpole 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.

WARNING

Springpoles 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. This should be done by trained users.

TRANSPORTATION AND STORAGE

Stop the product and disconnect it from the power supply. Allow the product to cool down before storing or transporting.
Clean all foreign material from the product. Store it in a cool, dry, and well-ventilated place that is inaccessible to children. Keep away from corrosive agents such as garden chemicals and de-icing salts. Do not store outdoors.
Fit the guide bar cover before storing the product or during transportation.
For transportation, secure the product against movement or falling to prevent injury to persons or damage to the product.

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

Servicing requires extreme care and knowledge and should be performed only by a qualifi ed service technician. Have the product serviced by an authorised service centre only. When servicing, use only original replacement parts.
Disconnect the product from the power supply before adjustment, maintenance, or cleaning. Failure to do so could result in serious personal injury.
You may only make adjustments or repairs described in this manual. For other repairs, have the product serviced by an authorised service centre only.
Consequences of improper maintenance, removal, or modification of safety features like the chain brake, hand guard (front and back), spiked bumper, chain catcher, guide bar, low-kickback saw chain may cause the 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 at your authorised service centre. The part number is available in the product specification table in this manual.
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.

RESIDUAL RISKS

Even when the product is used as prescribed, it is still impossible to completely eliminate certain residual risk factors. The following hazards may arise during 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. Restrict working time and exposure.
Exposure to noise can cause hearing injury.
- Wear hearing 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.
Skin contact with 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, numbness and blanching of the fi ngers, usually apparent 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 unit 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, which give protection, good grip and also reduce the effect of handle vibration.

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

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

RYOBI-RCS1935B-Electric-Chainsaw-FIG-2

Chain
Guide bar
Front hand guard/Chain brake
Front handle
Trigger release
Rear handle
Spiked bumper
Chain lubricant cap
Cord retainer
Switch trigger
Sprocket cover
Chain tension/Guide bar locking knob
Guide bar cover
Chain catcher

SAFETY DEVICES

Low kick-back saw chain
A low-kickback 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 kickback 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 of the low kickback 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 chainsaw 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 kickback. You should use a guide bar and matching chain which is just long enough for the job. Longer 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 from rotating. When the chain brake lever/hand guard is pushed towards the bar, the chain should stop immediately. A chain brake does not prevent kickback. It only lowers the risk of injury should the chain bar contact the operator’s body during a kickback 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.

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 THE SAW CHAIN AND GUIDE BAR

Disconnect the mains plug. Wear protective gloves.
Unscrew the guide bar locking knob and remove the sprocket cover.
The saw chain 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 around the drive sprocket. Lower the bar so that the bolt goes through the hole in the attached chain tension assembly.
Replace the sprocket cover and then tighten the chain tension/guide bar locking knob by turning it clockwise until it locks into place. Check the chain tension frequently.
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.
Tighten and lock the chain tension/guide bar locking knob by turning it clockwise.

ADJUSTING THE CHAIN TENSION

Disconnect the product from the power supply. Wear protective gloves.
To correct the chain tension, fully loosen the chain tension/guide bar locking knob, then tighten the chain tension/guide bar locking knob by turning it clockwise until it locks into place. Check the chain tension frequently. 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.
Tighten and lock the chain tension/guide bar locking knob by turning it clockwise.
Note: Make sure that the bar and chain tensioning assembly is moving freely without dirt and the saw chain is correctly looped around the sprocket. If the chain tension is too tight or too loose after locking the chain tension/guide bar locking knob, check if the guide bar and chain tensioning assembly are clean and properly assembled. If necessary, remove the sprocket cover and guide bar for cleaning, then re-assemble the parts.

OPERATION

ADDING CHAIN LUBRICATING OIL

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

Clear surface around the oil cap to prevent contamination.
Unscrew and remove the cap from the oil tank.
Pour the oil into the oil tank and monitor the oil level gauge. Ensure that no dirt enters the oil tank while filling.
Put the oil cap back on and tighten it up. Wipe away any spillage.
One full oil tank will enable you to use the saw for 18 – 28 min.

HOLDING THE CHAINSAW

Always hold the chain saw with your right hand at the rear handle and your left hand at the front handle. Grip both handles with the thumbs and fi ngers encircling the handles. Ensure that your left hand is holding the front handle so that your thumb is underneath.

WARNING

Always keep the power cable tidy and away from the area of cutting. Apart from the danger of electrocution, untidy cables cause falls and trips.

STARTING THE CHAINSAW

Connect the product to a power outlet. Make sure the chain brake is in the run position by pulling back on the lever/hand guard.
To start the product: Press the trigger release, and then press the on/off trigger.

CHECKING AND OPERATING CHAIN BRAKE

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. The chain should stop rotating immediately. Be sure to maintain both hands on the saw handles at all times.
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, have the product serviced by an authorised service centre prior to use.

REPLACING THE GUIDE BAR AND SAW CHAIN

Disconnect the product from the power supply. Wear protective gloves.
Unlock the chain tension/guide bar locking knob by turning it counterclockwise until the sprocket cover comes loose.
Remove the sprocket cover. Remove the bar and saw chain from the product.
Remove the screw holding the guide bar to the chain tension assembly. Dispose the used bar and saw chain properly.
Mount the chain tension assembly on to the new bar and tighten the screw. Put the new chain in the correct direction onto the bar and make sure that the drive links are aligned in the bar groove.
Attach the bar to the chain saw and loop the chain around the drive sprocket.
Replace the sprocket cover.
Tighten and lock the chain tension/guide bar locking knob by turning it clockwise. 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. Adjust the chain tension. Refer to the “Adjusting chain tension” section.

WARNING

Improper chain sharpening increases the potential of kickback.
Failure to replace or repair a damaged chain can cause serious injury.

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

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 the “Operation – Checking and Operating Chain Brake” section in this manual for additional information.

MAINTENANCE SCHEDULE

Daily check

Power cable for damage Before each use
Bar lubrication Before each use
Chain tension Before each use and frequently
Chain sharpness Before each use, visual check
For damaged parts Before each use
For loose fasteners Before each use
Chain brake function Before each use

Inspect and clean

Bar Before each use
Complete saw After each use
Chain brake Every 5 hours*

Hours of operation

SYMBOLS ON THE PRODUCT

Safety alert
To reduce the risk of injury, user must read and understand operator’s manual before using this product.
Wear eye, ear and head protection.
Wear non-slip safety footwear when using the product.
Wear non-slip, heavy duty gloves.
Remove plug from the mains immediately before maintenance or if cable is damaged or cut
Beware of chain saw kickback and avoid contact with bar tip.
Do not expose to rain or damp condition.
Hold and operate the saw properly with both hands.
Do not operate the saw using only one hand.
Conforms to all regulatory standards in the country in the EU where the product is purchased.
EurAsian Conformity Mark
Class II tool, double insulation
Ukrainian mark of conformity
Waste electrical products should not be disposed of with household waste.
Please recycle where facilities exist.
Check with your local authority or retailer for recycling advice.
The guaranteed sound power level is 104 dB (RCS1935B)
The guaranteed sound power level is 105 dB (RCS2340B)
Bar and chain lubricant
Chain brake

SYMBOLS IN THIS MANUAL

Connect to power outlet.
Disconnect from power outlet.
Parts or accessories sold separately
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 this 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.

OVERVIEW

RYOBI-RCS1935B-Electric-Chainsaw-FIG-1

INSTALLATION INSTRUCTION

RYOBI-RCS1935B-Electric-Chainsaw-FIG-3 RYOBI-
RCS1935B-Electric-Chainsaw-FIG-4

CONNECTION

RYOBI-RCS1935B-Electric-Chainsaw-FIG-15 RYOBI-
RCS1935B-Electric-Chainsaw-FIG-16

Product specifications

Model
Rated power
Rated voltage
Guide bar length
Usable cutting length
Chain brake stop
Chain oil tank capacity
Weight (with guide bar, chain and empty tank)
Vibration level
Front handle
Rear handle
Uncertainty of measurement
Noise emission level (in accordance with EN 60745-1 and EN 60745-2-13)
A-weighted sound pressure level at operator’s position
Uncertainty of measurement
A-weighted sound power level
Uncertainty of measurement

Replacement Part (Bar and Chain)

Model
Manufacturer
Chain
Bar

Vibration level

The declared vibration value has been measured with a standard test method and may be used to compare one tool with another. The declared vibration value may be used in a preliminary assessment of exposure. The vibration emission during actual use of power tool can differ from the declared total value depending on the ways in which the tool is used. Identify safety measures to protect the operator that are based on an estimation of exposure in the actual conditions of use, taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time.

WARRANTY APPLICATION CONDITIONS

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

The warranty 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 warranty provided in case of professional or commercial use. This warranty applies only on new products.
There is a possibility to extend for a part of the range of power tools (AC/DC) the warranty period over the period described above using the registration on the www.ryobitools.eu website. The eligibility of products for extended warranty is clearly displayed in stores and / or on packaging and is contained within the product documentation. The end user is required to register his/her newly-acquired products online within 30 days from the date of purchase. The end user may register for the extended warranty in his/her 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 their personal data that is required to be entered online. They must also accept the terms and conditions. The registration confirmation receipt, which is sent out by e-mail, and the original invoice showing the date of purchase will serve as proof of the extended warranty.
The warranty covers all defects of the product during the warranty period due to faults in workmanship or material at the purchase date. The warranty 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 has been incorrectly connected to a power supply. This warranty does not apply to:
- any damage to the product that is the result of improper or lack of maintenance
- any product that has been altered or modified
- any product where original identification (trademark, serial number) markings have been defaced, altered or removed
- any damage caused by non-observance of the instruction manual
- any product not displaying the CE approval mark on the rating plate
- any product that has been attempted to be repaired by a non-authorized warranty service center or without prior authorization by Techtronic Industries
- any product connected to improper power supply (amps, voltage, frequency)
- any product used with inappropriate fuel mixture (fuel, oil, ratio of oil/ fuel mixture)
- any damage caused by external influences (water, chemical, physical, shocks) or foreign substances
- normal wear and tear spare parts
- inappropriate use, overloading of the tool
- use of non-approved accessories or parts
- Accessories provided with the tool or purchased separately including but not limited to blades, saw chains, cutting lines, etc.
- Any periodic adjustments to or maintenance cleaning of carburettors
- 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.
For servicing, the product must be sent or presented to a RYOBI authorised 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.
A repair / replacement under this warranty is free of charge. It does not constitute an extension or a new start of the warranty period. Exchanged parts or products become our property. In some countries delivery charges or postage will have to be paid by the sender. Your statutory rights arising from the purchase of the product remain unaffected.
This warranty is valid in the European Community, Switzerland, Iceland, Norway, Liechtenstein, Turkey and Russia. Outside these areas, please contact your authorised RYOBI dealer to determine if another warranty applies.

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

DECLARATION OF CONFORMITY

Techtronic Industries GmbH Max-Eyth-Straße 10, 71364 Winnenden, Germany Herewith we declare that the product

Electric Chainsaw
Brand: RYOBI
Model number: RCS1935B/RCS2340B

Serial number range:
RCS1935B: 46281601000001 – 46281601999999 RCS2340B: 46282201000001 – 46282201999999 is in conformity with the following European Directives and harmonised standards 2006/42/EC, 2014/30/EU, 2000/14/EC, 2005/88/EC, 2011/65/EU, EN 60745-1:2009+A11:2010, EN 60745-2-13:2009+A1:2010, EN 55014-1:2017, EN 55014-2:2015, EN 61000-3-2:2014, EN 61000-3-11:2000, EN 50581:2012 RCS1935B Measured sound power level: 102,8 dB(A) Guaranteed sound power level: 104 dB(A) Conformity assessment method to Annex V Directive 2000/14/EC amended by 2005/88/EC. RCS2340B Measured sound power level: 103,3 dB(A) Guaranteed sound power level: 105 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 50414705 0001.Andrew John Eyre (BEng, CEng, MIET) Vice President, Regulatory & Safety Winnenden, Aug. 30, 2018 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